FFT Benchmark Results On PCs
Version 1 Single Precision Results
Version 1 Double Precision Results
Version 2 Single Precision Results
Version 2 Double Precision Results
Version 3 Single Precision Results
Version 3 Double Precision Results
64 Bit vs 32 Bit Results
Cache and RAM Code Key
Description
FFTGraf benchmark runs code for single and double precision Fast Fourier Transforms (FFTs) of size 1024 to 1048576 (1K to 1024K) , producing a graph of results. As the time for a single calculation can vary, the tests are run a number of times (default 5). Results given here are minimum times in milliseconds. Three versions are available:
Version 1 is all C code using optimised procedures produced by Scott Taylor. The data for FFTs is not loaded or stored from sequential memory addresses for much of the time. As the hardware loads this data in 32 or 64 byte bursts (or more), much of it is redundant, resulting in slow performance.
Version 2 of the program produces significant speed improvements mainly by making more efficient use of caches and using all burst data. Scott’s new code divides the data from RAM into L2 cache sized segments, leading to a 2 x improvement on large FFTs. Roy’s new code unrolls the critical loop to make effective use of burst data read into caches, leading to up to a further 2 x improvement or more with PCs that use 64 byte bursts. Roy has also supplied assembly code for the main calculations which helps a little.
Version 3 includes additional code from Roy to use SSE or 3DNow assembly instructions for single precision calculations and SSE2 instructions for double precision, when these are provided by the CPU.
NEW - The benchmarks, with text displays, instead of graphs, have been converted to run via Windows and Linux commands and Android app downloads. Details, results and download links are in
FFTBenchmarks.htm.
Pre-compiled versions of the benchmarks can be found in FFTGraf.zip which also contains the source code and more detailed explanations. The three versions have also been compiled to run at 64 bits using Windows 64. Version 1 is the same but compiles using SSE/SSE2 instructions. Version 2 uses C for the main calculations, as i386 floating point instructions are not available under Win64. Version 3 is the same as before except it has no i386 floating point or 3Dnow facilities. The 64 bit versions are in More64Bit.zip.
Then there is My Main Page for other PC benchmarks and results.
Version 1 memory demands in bytes are up to 16 times the FFT size on single precision and 28 times on double precision. These also apply to Versions 2 and 3 up to size 8K. Above this, they can be up to 28 times on SP and 52 times on DP - maximum 52 MB. Data spanned in the critical timing loop is 8 and 16 times (SP and DP) FFT size at 8K and below then 16 and 32 times above 8K.
Following is an example of Version 3 output for a 3.0 GHz Pentium 4E. The output shows Scott's MagSq'd[n/16], Peak Noise and Average Noise accuracy checks for FFTs (at 1024K). It should be noted that these might vary slightly using different compilers, particularly on single precision. Examples below show that SSE instructions in Version 3 produce different checksums.
|
Size Single Precision FFTs using SSE
K Millisecond each pass
1 0.057 0.052 0.052 0.052 0.054
2 0.108 0.117 0.108 0.107 0.109
4 0.235 0.234 0.236 0.235 0.235
8 0.545 0.491 0.489 0.490 0.490
16 1.31 1.23 1.24 1.23 1.24
32 3.31 2.83 3.18 2.93 2.86
64 6.38 6.89 6.81 6.25 6.76
128 17.3 16.9 18.2 17.9 17.4
256 40.2 39.3 39.2 40.0 39.8
512 84.8 84.6 83.5 82.9 83.3
1024 184 182 182 183 182
Size Double Precision FFTs using SSE2
K Millisecond each pass
1 0.059 0.058 0.058 0.058 0.058
2 0.134 0.133 0.133 0.133 0.133
4 0.287 0.282 0.281 0.281 0.281
8 0.602 0.619 0.602 0.606 0.604
16 1.56 1.57 1.54 1.53 1.55
32 4.08 3.82 3.73 4.23 3.81
64 10.6 10.6 10.5 10.5 11.1
128 25.2 24.6 24.7 24.7 24.1
256 52.1 52.8 52.2 51.4 52.2
512 114 115 116 114 115
1024 262 255 257 255 260
Checks SP 9.999890e-001 3.338029e-006 1.043487e-011
Checks DP 1.000000e+000 1.133294e-023 1.428096e-028
Version 1
Checks SP 9.999891e-001 3.338028e-006 1.043382e-011
Checks DP 1.000000e+000 1.133294e-023 1.428096e-028
Version 2
Checks SP 9.999891e-001 3.338028e-006 1.043382e-011
Checks DP 1.000000e+000 1.133294e-023 1.428096e-028
To Start
|
Version 1 Single Precision Milliseconds
Cache FFT Size K --->
Processor MHz & RAM 1 2 4 8 16 32 64 128 256 512 1024
80486 66 15B 33 17 39 85 196 509 1240 2752 5864 12427
Pentium 100 16B 50 3.0 9.7 22 54 127 307 801 1790 3844
Pentium MMX 200 27B 66 1.2 3.1 11 24 52 119 277 807 1806 3844
Pentium Pro 200 16F 66 1.1 2.9 6.4 14 37 101 358 797 1740 3717
Celeron A 400 25F 66 0.36 0.85 2.6 7.5 36 106 254 569 1188 2543 5356
Pentium II 450 27H 100 0.32 0.86 4.1 9.2 20 47 132 395 985 2257 4627
Pentium IIIE 550 26F 100 0.26 0.60 1.6 3.5 12 34 134 309 684 1461 3313
Pentium IIIEB 733 26F 133 0.19 0.46 1.2 2.6 6.2 27 128 291 626 1377 2876
Pentium IIIEB 1000 26F 133 0.14 0.33 0.82 1.8 4.6 33 122 300 657 1414 3029
Pentium IIIEB 1000 26F RD1 0.14 0.33 0.82 1.8 4.2 16 91 216 478 1029 2126
Pentium 4 1500 16F RD2 0.14 0.33 0.77 1.7 4.3 17 93 235 565 1296 2809
Pentium 4 1800 16F DD1 0.11 0.28 0.63 1.4 3.7 16 116 279 645 1440 3053
Pentium 4 1900 16F 133 0.11 0.27 0.60 1.4 3.4 18 172 402 907 1985 4214
P4 Xeon 2200 17F RD2 0.093 0.23 0.53 1.2 3.0 7.4 31 194 480 1121 2435
Celeron M 1295 38F 0.089 0.20 0.49 1.4 3.0 6.6 15 75 584 1379 3121
Pentium 4E 3000 28F DC3 0.072 0.15 0.38 0.83 1.8 4.2 10 40 226 494 1043
Pentium 4N 3066 17F DD1 0.067 0.17 0.37 0.84 2.1 5.3 32 268 617 1368 2877
Pentium M2 1862 39F DC1 0.063 0.14 0.34 0.94 2.1 4.5 10 24 78 452 1266
Atom M 1600 H7F SCC 0.53 0.57 1.3 3.0 6.5 15 51 228 506 1095 2241
Core 2 Duo M 1830 39F DC5 0.078 0.19 0.34 0.94 2.2 4.8 11 24 80 318 814
Celeron C2 M 2000 38F DC4 0.053 0.13 0.31 0.86 2.0 4.7 10 54 264 571 1211
Core2 Duo A1CP 2400 3AF DC4 0.043 0.11 0.26 0.72 1.7 3.7 8.2 18 42 134 1404
Core2 Duo B1CP 2400 3AF DC4 0.043 0.11 0.26 0.72 1.7 3.7 8.2 18 42 108 565
Core2 Duo B1CP 2400 3AF DC6 0.043 0.11 0.26 0.71 1.6 3.7 8.2 18 42 104 439
Core i5 2467M @@@@ 3WF DC8 0.036 0.080 0.18 0.48 1.1 2.5 6.7 16 34 111 258
Core i7 930 **** 3XF DC7 0.033 0.076 0.18 0.46 1.0 2.4 6.5 14 31 75 168
Core i7 860 #### 3XF DC8 0.033 0.076 0.18 0.46 1.0 2.4 6.3 14 30 72 171
Core i7 4820K $$$$ 3VF QC9 0.021 0.047 0.11 0.28 0.6 1.5 4.1 9 19 48 113
$$$$ 3.7 GHz i7 4820K, running at up to 3.90 GHz using Turbo Boost
#### 2.8 GHz i7 860, running at up to 3.46 GHz using Turbo Boost (but detuned)
**** 2.8 GHz i7 930, running at up to 3.06 GHz using Turbo Boost
@@@@ 1.6 GHz i5 2467M, running at up to 2.30 GHz using Turbo Boost
AMD K62 350 37B 100 1.1 2.4 6.2 27 65 167 375 903 2012 4336 9219
Duron 700 44F 133 0.17 0.37 0.82 2.4 14 74 170 399 1065 2423 5361
Athlon Tbird 1200 46F 133 0.10 0.21 0.46 1.3 6.1 20 167 401 934 2056 4605
Athlon Tbird 1330 46F 133 0.090 0.20 0.43 1.2 5.5 19 122 291 751 1712 3623
Athlon 4 1725 46F DD1 0.066 0.15 0.32 0.91 4.3 11 82 193 462 1035 2160
Athlon 4 Bart 1800 47F#DD1 0.064 0.14 0.32 0.88 4.1 10 28 361 819 1800 3716
Turion 64 M 1900 47F DC4 0.072 0.16 0.34 0.89 4.0 9.3 23 99 233 556 1226
Athlon XP 2080 46F DD2 0.056 0.12 0.27 0.76 3.5 9.2 74 176 428 967 2014
Athlon 64aa 2210 47F DC3 0.051 0.11 0.25 0.73 3.0 7.4 17 101 227 514 1139
Phenom 3000 4ZF DC8 0.037 0.082 0.19 0.50 1.8 4.4 11 30 66 192 598
Core 2 Duo A nForce 570 chipset, Core 2 Duo B Intel 965 chipset
To Start
Version 1 Double Precision Milliseconds
Cache FFT Size K --->
Processor MHz & RAM 1 2 4 8 16 32 64 128 256 512 1024
80486 66 15B 33 21 46 99 262 677 1493 3131 6595 13489
Pentium 100 16B 50 4.7 11 29 65 159 415 947 2010 4256
Pentium MMX 200 27B 66 1.6 5.5 13 27 60 176 393 903 1911 4051
Pentium Pro 200 16F 66 1.4 3.0 6.7 19 65 190 430 925 1980 4222
Celeron A 400 25F 66 0.49 1.2 4.6 18 56 134 295 635 1385 2916 6081
Pentium II 450 27H 100 0.45 2.1 4.7 10 23 65 233 528 1161 2381 4935
Pentium IIIE 550 26F 100 0.30 0.79 1.7 3.9 17 82 193 416 848 1819 3742
Pentium IIIEB 733 26F 133 0.23 0.60 1.3 3.0 16 69 160 349 750 1600 3295
Pentium 4 1500 16F RD2 0.19 0.43 0.96 2.5 9.8 48 119 284 650 1392 3080
Pentium IIIEB 1000 26F 133 0.17 0.41 1.0 2.6 16 68 166 360 772 1645 3493
Pentium IIIEB 1000 26F RD1 0.17 0.41 0.91 2.1 8.7 47 110 240 512 1142 2400
Pentium 4 1800 16F DD1 0.16 0.35 0.79 2.0 12 59 139 318 701 1478 3271
Pentium 4 1900 16F 133 0.15 0.33 0.75 1.9 13 92 213 463 1006 2095 4463
P4 Xeon 2200 17F RD2 0.13 0.29 0.65 1.7 4.1 19 101 247 574 1217 2684
Celeron M 1295 38F 0.11 0.25 0.67 1.5 3.2 7.2 39 296 712 1518 3127
Pentium 4N 3066 17F DD1 0.084 0.19 0.43 1.1 2.8 19 138 314 696 1421 3070
Pentium 4E 3000 28F DC3 0.076 0.20 0.42 0.93 2.1 5.0 22 114 251 524 1144
Pentium M2 1862 39F DC1 0.074 0.17 0.47 1.0 2.2 4.9 12 45 260 625 1361
Atom M 1600 H7F SCC 0.26 0.64 1.4 3.1 6.8 26 118 262 567 1156 2439
Core 2 Duo M 1830 39F DC5 0.069 0.17 0.45 1.0 2.3 5.0 12 41 200 428 871
Celeron C2 M 2000 38F DC4 0.064 0.15 0.42 0.94 2.1 4.6 26 139 301 605 1231
Core2 Duo A1CP 2400 3AF DC4 0.052 0.13 0.35 0.79 1.8 3.9 8.5 20 85 781 1824
Core2 Duo B1CP 2400 3AF DC4 0.052 0.13 0.35 0.79 1.8 3.9 8.5 20 54 293 704
Core2 Duo B1CP 2400 3AF DC6 0.052 0.13 0.35 0.78 1.7 3.8 8.5 20 52 226 543
Core i5 2467M @@@@ 3WF DC8 0.041 0.094 0.24 0.54 1.2 3.3 7.3 17 55 128 281
Core i7 930 **** 3XF DC7 0.040 0.091 0.23 0.52 1.2 3.2 7.1 15 37 86 284
Core i7 860 #### 3XF DC8 0.040 0.092 0.23 0.52 1.2 3.1 6.8 15 36 87 259
Core i7 4820K $$$$ 3VF QC9 0.023 0.054 0.14 0.31 0.7 2.0 4.4 9 23 57 192
$$$$ 3.7 GHz i7 4820K, running at up to 3.90 GHz using Turbo Boost
#### 2.8 GHz i7 860, running at up to 3.46 GHz using Turbo Boost (but detuned)
**** 2.8 GHz i7 930, running at up to 3.06 GHz using Turbo Boost
@@@@ 1.6 GHz i5 2467M, running at up to 2.30 GHz using Turbo Boost
AMD K62 350 37B 100 1.1 3.0 12 24 66 172 501 1141 2448 5082 10275
Duron 700 44F 133 0.20 0.43 1.3 7.6 39 90 205 547 1248 2756 5972
Athlon Tbird 1200 46F 133 0.11 0.23 0.66 3.0 11 89 209 529 1188 2605 5629
Athlon Tbird 1330 46F 133 0.11 0.23 0.63 2.6 8.7 75 170 410 912 1952 4242
Athlon 4 1725 46F DD1 0.074 0.16 0.47 2.1 5.8 47 107 248 545 1146 2464
Athlon 4 Bart 1800 47F#DD1 0.075 0.16 0.46 1.9 4.6 16 186 422 926 1918 4065
Turion 64 M 1900 47F DC4 0.069 0.15 0.44 1.9 4.4 11 50 118 277 614 1366
Athlon XP 2080 46F DD2 0.065 0.14 0.40 1.7 4.7 34 83 211 479 1009 2196
Athlon 64aa 2210 47F DC3 0.058 0.13 0.36 1.4 3.4 8.9 51 119 258 559 1219
Phenom 3000 4ZF DC8 0.042 0.10 0.25 0.90 2.2 5.3 15 33 94 303 740
Core 2 Duo A nForce 570 chipset, Core 2 Duo B Intel 965 chipset
To Start
Version 2 Single Precision Milliseconds
Cache FFT Size K --->
Processor MHz & RAM 1 2 4 8 16 32 64 128 256 512 1024
80486 66 15B 33 16 35 82 186 403 858 1870 3948 8451
Pentium 100 16B 50 3.1 7.3 16 36 86 195 431 924 1952
Pentium MMX 200 27B 66 1.4 3.3 8.0 17 38 87 194 423 899 1894
Pentium Pro 200 16F 66 0.67 1.5 3.2 7.0 23 54 119 250 526 1115
Celeron A 400 25F 66 0.30 0.68 1.7 6.4 16 38 84 189 401 850 1789
Pentium IIIE 550 26F 100 0.21 0.47 1.1 2.3 7.1 19 44 95 201 429 940
Pentium IIIEB 660 26F 133 0.17 0.39 0.9 1.9 6.2 17 38 85 188 410 872
Celeron 2 900 25F 100 0.13 0.30 0.82 2.7 12 33 73 166 344 736 1568
PIII Tualatin 1266 27F 133 0.088 0.20 0.45 1.0 2.3 6.1 19 50 117 264 569
Pentium 4 1900 16F 133 0.075 0.18 0.46 1.1 3.3 9.4 27 69 160 353 768
Celeron M 1295 38F 0.073 0.16 0.36 0.84 1.9 4.3 11 34 91 211 484
Pentium 4E 3000 28F DC3 0.061 0.13 0.40 1.0 2.2 4.7 10 25 61 128 297
Pentium 4N 2400 17F RD2 0.060 0.14 0.35 0.78 1.9 5.1 16 48 118 259 575
Pentium 4N 2400 17F 133 0.060 0.14 0.35 0.78 2.0 5.9 20 58 128 283 648
Pentium M2 1862 39F DC1 0.052 0.11 0.25 0.59 1.4 2.9 6.3 16 41 107 245
Pentium 4N 3066 17F DD1 0.045 0.12 0.28 0.62 1.5 4.3 15 46 111 235 524
Atom M 1600 H7F SCC 0.46 0.49 1.1 2.3 5.3 12 28 68 147 324 700
Core 2 Duo M 1830 39F DC5 0.048 0.11 0.25 0.58 1.4 2.9 6.4 15 37 90 198
Celeron C2 M 2000 38F DC4 0.044 0.10 0.23 0.53 1.2 2.7 6.1 17 42 96 216
Core2 Duo A1CP 2400 3AF DC4 0.035 0.080 0.18 0.44 1.0 2.2 4.7 10 27 83 246
Core2 Duo B1CP 2400 3AF DC4 0.036 0.080 0.18 0.44 1.0 2.2 4.8 10 24 60 151
Core2 Duo B1CP 2400 3AF DC6 0.054 0.12 0.19 0.44 1.0 2.2 4.7 11 24 58 140
Core i5 2467M @@@@ 3WF DC8 0.030 0.061 0.13 0.30 0.70 1.5 3.3 7.3 16 39 84
Core i7 930 **** 3XF DC7 0.026 0.054 0.12 0.27 0.64 1.4 3.0 6.5 14 32 78
Core i7 860 #### 3XF DC8 0.026 0.055 0.12 0.28 0.63 1.4 3.0 6.4 14 32 74
Core i7 4820K $$$$ 3VF QC9 0.016 0.034 0.07 0.17 0.40 0.9 1.9 4.1 9 20 49
$$$$ 3.7 GHz i7 4820K, running at up to 3.90 GHz using Turbo Boost
#### 2.8 GHz i7 860, running at up to 3.46 GHz using Turbo Boost (but detuned)
**** 2.8 GHz i7 930, running at up to 3.06 GHz using Turbo Boost
@@@@ 1.6 GHz i5 2467M, running at up to 2.30 GHz using Turbo Boost
Duron 700 44F 133 0.13 0.26 0.55 1.7 6.4 17 42 96 229 524 1199
Athlon Tbird 1200 46F 133 0.075 0.16 0.33 0.89 3.5 12 36 82 199 465 1089
Athlon 4 1410 46F DD1 0.062 0.13 0.27 0.76 2.2 6.8 18 41 100 217 497
Athlon 4 1794 46F DD3 0.049 0.11 0.22 0.60 1.8 5.3 14 31 75 163 364
Athlon 4 Bart 1800 47F#DD1 0.049 0.10 0.22 0.61 1.6 4.8 22 52 126 277 620
Turion 64 M 1900 47F DC4 0.047 0.10 0.20 0.55 1.5 3.7 11 26 59 132 301
Athlon XP 2080 46F DD2 0.043 0.089 0.19 0.52 1.6 4.9 13 29 71 171 380
Athlon 64aa 2210 47F DC3 0.040 0.086 0.18 0.47 1.2 3.0 9.2 21 47 106 247
Phenom 3000 4ZF DC8 0.026 0.056 0.12 0.30 0.75 1.8 4.5 11 24 57 162
Core 2 Duo A nForce 570 chipset, Core 2 Duo B Intel 965 chipset
To Start
Version 2 Double Precision Milliseconds
Cache FFT Size K --->
Processor MHz & RAM 1 2 4 8 16 32 64 128 256 512 1024
80486 66 15B 33 20 50 113 251 536 1258 2660 5654 11698
Pentium 100 16B 50 4.0 8.6 20 50 121 268 582 1224 2614
Pentium MMX 200 27B 66 1.7 4.5 10 21 49 111 244 560 1148 2417
Pentium Pro 200 16F 66 0.91 2.0 4.2 14 35 81 172 374 817 1779
Celeron A 400 25F 66 0.34 0.88 4.2 13 38 78 172 365 782 1645 3486
Pentium IIIE 550 26F 100 0.23 0.55 1.2 3.0 11 26 58 127 278 618 1374
Pentium IIIEB 660 26F 133 0.19 0.46 1.0 2.6 10 23 54 121 262 577 1276
Celeron 2 900 25F 100 0.15 0.36 1.6 12 33 77 170 333 683 1438 3073
PIII Tualatin 1266 27F 133 0.10 0.23 0.49 1.1 4.3 11 31 78 184 412 917
Pentium 4 1900 16F 133 0.10 0.23 0.51 1.4 5.9 16 36 85 185 406 907
Celeron M 1295 38F 0.082 0.19 0.44 0.94 2.1 6.2 21 56 130 295 668
Pentium 4N 2400 17F 133 0.075 0.18 0.39 1.0 3.7 12 33 75 169 372 819
Pentium 4N 2400 17F RD2 0.074 0.18 0.39 1.0 3.0 9.0 23 57 128 285 651
Pentium 4E 3000 28F DC3 0.062 0.18 0.49 0.97 2.8 5.9 15 34 73 167 390
Pentium 4N 3066 17F DD1 0.058 0.14 0.30 0.80 2.6 8.6 24 56 124 273 620
Pentium M2 1862 39F DC1 0.058 0.13 0.31 0.65 1.5 3.2 8.2 23 63 146 334
Atom M 1600 H7F SCC 0.23 0.51 1.1 2.4 5.6 14 32 71 156 337 739
Core 2 Duo M 1830 39F DC5 0.055 0.12 0.29 0.63 1.4 3.1 7.2 20 48 105 233
Celeron C2 M 2000 38F DC4 0.051 0.12 0.27 0.58 1.3 3.3 9.9 24 53 118 269
Core2 Duo A1CP 2400 3AF DC4 0.041 0.094 0.22 0.48 1.1 2.3 5.0 16 59 164 418
Core2 Duo B1CP 2400 3AF DC4 0.041 0.094 0.22 0.48 1.1 2.3 5.0 12 32 83 191
Core2 Duo B1CP 2400 3AF DC6 0.042 0.10 0.22 0.48 1.1 2.4 5.2 12 31 75 167
Core i5 2467M @@@@ 3WF DC8 0.032 0.069 0.15 0.33 0.90 1.7 3.7 8.6 20 44 97
Core i7 930 **** 3XF DC7 0.028 0.062 0.14 0.30 0.73 1.6 3.4 7.2 17 41 95
Core i7 860 #### 3XF DC8 0.028 0.062 0.14 0.30 0.71 1.5 3.3 7.0 16 39 88
Core i7 4820K $$$$ 3VF QC9 0.017 0.038 0.09 0.19 0.47 1.0 2.2 4.6 10 26 62
$$$$ 3.7 GHz i7 4820K, running at up to 3.90 GHz using Turbo Boost
#### 2.8 GHz i7 860, running at up to 3.46 GHz using Turbo Boost (but detuned)
**** 2.8 GHz i7 930, running at up to 3.06 GHz using Turbo Boost
@@@@ 1.6 GHz i5 2467M, running at up to 2.30 GHz using Turbo Boost
Duron 700 44F 133 0.14 0.28 0.88 5.0 15 34 76 172 379 836 1870
Athlon Tbird 1200 46F 133 0.081 0.17 0.45 1.6 7.9 22 53 123 282 645 1485
Athlon 4 1410 46F DD1 0.066 0.14 0.38 1.3 4.7 12 26 61 137 306 695
Athlon 4 1794 46F DD3 0.057 0.11 0.31 1.1 3.8 9.5 21 47 105 227 517
Athlon 4 Bart 1800 47F#DD1 0.053 0.11 0.30 1.0 4.2 15 35 81 183 409 925
Turion 64 M 1900 47F DC4 0.049 0.10 0.28 1.0 2.6 7.1 16 34 78 177 396
Athlon XP 2080 46F DD2 0.046 0.10 0.26 0.89 3.6 8.8 19 44 102 229 527
Athlon 64aa 2210 47F DC3 0.041 0.086 0.22 0.77 2.1 5.8 13 29 66 147 326
Phenom 3000 4ZF DC8 0.028 0.059 0.15 0.45 1.0 2.5 5.6 13 32 88 216
Core 2 Duo A nForce 570 chipset, Core 2 Duo B Intel 965 chipset
To Start
Version 3 Single Precision Milliseconds
Cache FFT Size K --->
Processor MHz & RAM 1 2 4 8 16 32 64 128 256 512 1024
Pentium 200 16B 66 1.5 3.9 8.4 19 43 97 220 484 1048 2218 4611
Pentium MMX 200 27B 66 1.4 3.2 7.8 17 38 86 192 417 882 1869
Pentium Pro 200 16F 66 0.80 1.8 3.8 8.3 22 55 121 263 557 1220
Pentium II 400 27H 100 0.30 0.77 2.5 5.4 12 31 81 189 409 876 1897
Celeron A 450 25F 100 0.27 0.60 1.4 3.3 10 24 51 109 237 502 1092
Pentium IIIE 550 26F 100 0.18 0.40 0.90 1.9 6.2 18 40 87 185 394 838 S
Pentium 4 1900 16F 133 0.074 0.16 0.35 0.71 2.3 7.6 22 50 107 236 571 S
Celeron M 1295 38F 0.071 0.15 0.33 0.83 1.9 4.3 11 33 86 194 436 S
Pentium 4N 2400 17F 133 0.058 0.13 0.27 0.57 1.4 4.3 16 49 104 224 521 S
Pentium 4N 2400 17F RD2 0.057 0.12 0.27 0.56 1.4 3.6 12 32 70 156 364 S
Pentium 4N 2533 17F DD1 0.055 0.12 0.25 0.52 1.3 3.6 12 37 78 169 393 S
Pentium 4N 2533 17F RD3 0.055 0.12 0.26 0.53 1.3 3.3 10 26 57 124 289 S
Pentium 4N 2533 17F DC1 0.054 0.12 0.25 0.52 1.3 3.4 11 30 65 144 338 S
Pentium 4E 3000 28F DC3 0.052 0.11 0.23 0.49 1.2 2.8 6.3 17 39 83 182 S
Pentium M2 1862 39F DC1 0.050 0.10 0.23 0.58 1.3 2.9 6.3 15 39 95 213 S
Pentium 4N 3066 17F DD1 0.044 0.10 0.21 0.44 1.1 3.1 11 33 71 154 359 S
Pentium 4N 3678 17F DC3 0.038 0.086 0.18 0.37 0.91 2.3 6.9 19 42 92 231 S
Atom M 1600 H7F SCC 0.22 0.23 0.58 1.2 2.9 6.6 17 42 92 200 437 S
Core 2 Duo M 1830 39F DC5 0.033 0.07 0.16 0.38 0.89 2.0 5.0 10 27 65 136 S
Celeron C2 M 2000 38F DC4 0.032 0.07 0.15 0.35 0.82 1.8 4.4 14 34 73 159 S
Core2 Duo A1CP 2400 3AF DC4 0.024 0.053 0.12 0.29 0.67 1.5 3.2 6.8 19 66 213 S
Core2 Duo B1CP 2400 3AF DC4 0.025 0.053 0.12 0.29 0.67 1.5 3.2 6.8 16 42 108 S
Core2 Duo B1CP 2400 3AF DC6 0.025 0.053 0.12 0.29 0.70 1.5 3.2 7.0 16 40 100 S
Core i5 2467M @@@@ 3WF DC8 0.019 0.044 0.09 0.21 0.50 1.1 2.5 5.4 12 31 68 S
Core i7 860 #### 3XF DC8 0.023 0.048 0.10 0.23 0.57 1.3 2.7 5.7 12 27 65 S
Core i7 930 **** 3XF DC7 0.017 0.035 0.08 0.18 0.45 1.0 2.1 4.6 10 23 58 S
Core i7 4820K $$$$ 3VF QC9 0.010 0.022 0.05 0.12 0.29 0.7 1.4 3.0 7 15 37 S
$$$$ 3.7 GHz i7 4820K, running at up to 3.90 GHz using Turbo Boost
#### 2.8 GHz i7 860, running at up to 3.46 GHz using Turbo Boost (but detuned)
**** 2.8 GHz i7 930, running at up to 3.06 GHz using Turbo Boost
@@@@ 1.6 GHz i5 2467M, running at up to 2.30 GHz using Turbo Boost
Duron 750 44F 133 0.11 0.23 0.48 1.4 5.9 15 36 81 201 475 1112
Athlon Tbird 1200 46F 133 0.072 0.15 0.30 0.77 3.3 11 35 77 176 402 932
Athlon 4 1794 46F DD3 0.050 0.10 0.21 0.56 2.0 6.7 19 41 90 203 478 S
Athlon 4 Bart 1800 47F#DD1 0.050 0.10 0.22 0.56 1.5 4.8 22 54 119 265 602 S
Turion 64 M 1900 47F DC4 0.052 0.10 0.21 0.50 1.4 3.4 10 23 52 112 252 S
Athlon XP 2080 46F DD2 0.043 0.089 0.19 0.48 1.6 5.0 13 29 65 150 364 S
Athlon 64a 2000 48F DD3 0.041 0.083 0.17 0.46 1.3 3.1 7.2 20 49 112 262 S
Opteron 2000 48F DD3 0.040 0.082 0.17 0.46 1.3 3.0 7.4 21 50 121 289 S
Athlon 64aa 2210 47F DC3 0.036 0.074 0.15 0.40 1.1 2.9 8.4 18 43 95 214 S
Phenom 3000 4ZF DC8 0.020 0.041 0.085 0.22 0.60 1.5 3.8 8.5 19 46 133 S
Core 2 Duo A nForce 570 chipset, Core 2 Duo B Intel 965 chipset
To Start
Version 3 Double Precision Milliseconds
Cache FFT Size K --->
Processor MHz & RAM 1 2 4 8 16 32 64 128 256 512 1024
Pentium 200 16B 66 2.2 4.8 11 23 58 131 291 701 1509 3031 6274
Pentium MMX 200 27B 66 1.6 4.4 9.4 20 49 111 244 532 1133 2392
Pentium Pro 200 16F 66 1.0 2.2 4.9 17 37 88 193 410 881 1932
Pentium II 400 27H 100 0.41 1.6 3.5 7.7 21 54 128 285 620 1339 2914
Celeron A 450 25F 100 0.29 0.73 1.7 8.4 21 44 95 205 445 949 2037
Pentium IIIE 550 26F 100 0.23 0.53 1.1 2.8 11 25 57 127 276 604 1319
Celeron M 1295 38F 0.10 0.23 0.54 1.2 2.7 7.3 23 60 138 308 691 S
Pentium 4 1900 16F 133 0.091 0.19 0.40 1.0 4.9 14 32 69 147 322 755 S
Pentium 4N 2400 17F 133 0.071 0.15 0.31 0.70 3.0 11 31 68 147 315 712 S
Pentium M2 1862 39F DC1 0.070 0.16 0.38 0.81 1.9 4.0 10 26 66 151 331 S
Pentium 4N 2400 17F RD2 0.069 0.14 0.31 0.68 2.3 7.1 19 42 92 197 440 S
Pentium 4N 2533 17F RD3 0.067 0.14 0.30 0.66 2.0 5.8 15 34 74 158 354 S
Pentium 4N 2533 17F DC1 0.065 0.14 0.30 0.64 2.2 6.8 19 41 89 190 428 S
Pentium 4N 2533 17F DD1 0.065 0.14 0.29 0.64 2.4 7.9 23 49 107 230 519 S
Pentium 4E 3000 28F DC3 0.058 0.13 0.28 0.60 1.5 3.7 11 24 51 114 255 S
Pentium 4N 3066 17F DD1 0.054 0.11 0.24 0.54 2.1 7.3 21 45 99 212 475 S
Pentium 4N 3678 17F DC3 0.046 0.10 0.21 0.44 1.4 4.2 11 25 54 115 256 S
Atom M 1600 H7F SCC 0.19 0.46 0.99 2.1 5.2 13 30 70 155 339 746 S
Core 2 Duo M 1830 39F DC5 0.042 0.094 0.23 0.50 1.1 2.5 6.3 17 42 89 190 S
Celeron C2 M 2000 38F DC4 0.040 0.087 0.21 0.46 1.1 2.8 9.1 22 49 106 232 S
Core2 Duo A1CP 2400 3AF DC4 0.031 0.070 0.17 0.38 0.87 1.9 4.1 13 50 154 362 S
Core2 Duo B1CP 2400 3AF DC4 0.031 0.071 0.18 0.38 0.87 1.9 4.1 10 28 70 158 S
Core2 Duo B1CP 2400 3AF DC6 0.031 0.071 0.18 0.38 0.90 1.9 4.1 10 25 63 139 S
Core i5 2467M @@@@ 3WF DC8 0.024 0.059 0.14 0.27 0.66 1.5 3.2 7.2 17 38 84 S
Core i7 860 #### 3XF DC8 0.028 0.062 0.14 0.30 0.76 1.7 3.6 7.6 17 40 88 S
Core i7 930 **** 3XF DC7 0.023 0.051 0.12 0.26 0.65 1.4 3.1 6.5 15 37 86 S
Core i7 4820K $$$$ 3VF QC9 0.013 0.030 0.07 0.15 0.40 0.9 1.9 4.0 9 22 55 S
$$$$ 3.7 GHz i7 4820K, running at up to 3.90 GHz using Turbo Boost
#### 2.8 GHz i7 860, running at up to 3.46 GHz using Turbo Boost (but detuned)
**** 2.8 GHz i7 930, running at up to 3.06 GHz using Turbo Boost
@@@@ 1.6 GHz i5 2467M, running at up to 2.30 GHz using Turbo Boost
Duron 750 44F 133 0.12 0.25 0.85 5.1 15 33 73 163 365 821 1872
Athlon Tbird 1200 46F 133 0.080 0.16 0.46 1.6 8.1 23 52 120 274 636 1505
Athlon 64a 2000 48F DD3 0.063 0.13 0.34 1.1 2.5 5.9 16 35 77 174 392 S
Opteron 2000 48F DD3 0.062 0.13 0.34 1.1 2.5 6.0 15 34 80 187 433 S
Athlon 64aa 2210 47F DC3 0.056 0.12 0.29 0.90 2.4 6.3 14 30 65 145 315 S
Athlon 4 1794 46F DD3 0.049 0.10 0.32 1.2 4.6 12 25 53 117 265 636
Athlon 4 Bart 1800 47F#DD1 0.049 0.10 0.31 1.2 4.2 15 36 79 172 373 872
Turion 64 M 1900 47F DC4 0.068 0.14 0.36 1.1 2.9 7.4 16 35 76 167 367 S
Athlon XP 2080 46F DD2 0.043 0.092 0.27 0.99 3.6 9.1 20 42 90 205 482
Phenom 3000 4ZF DC8 0.028 0.058 0.15 0.53 1.3 2.9 6.3 14 32 82 186 S
Core 2 Duo A nForce 570 chipset, Core 2 Duo B Intel 965 chipset
To Start
AMD Athlon 64, Phenom II, Intel Core 2 Duo, Core i7 - 32/64 Bit Milliseconds
FFT Size K --->
1 2 4 8 16 32 64 128 256 512 1024
Single Precision
Athlon 64 2210 MHz Windows XP Pro x64
V1 MS compiler 64b All C/C++ 0.043 0.15 0.43 1.9 6.0 16 50 160 357 753 1618 S
V2 MS compiler 64b All C/C++ 0.10 0.22 0.48 1.1 2.4 5.6 14 34 73 161 356 S
V3 MS compiler 64b SSE code 0.035 0.072 0.15 0.40 1.1 2.9 8.8 20 43 96 211 S
V1 Original 32b All C/C++ 0.051 0.11 0.25 0.73 3.0 7.4 17 101 227 514 1139
V2 Original 32b i386 code 0.040 0.086 0.18 0.47 1.2 3.0 9.2 21 47 106 247
V3 Original 32b SSE Code 0.036 0.074 0.15 0.40 1.1 2.9 8.4 18 43 95 214 S
Phenom II 3000 MHz Windows 7 64 bit
V1 MS compiler 64b All C/C++ 0.026 0.07 0.16 1.4 6 14 33 79 193 453 1022 S
V2 MS compiler 64b All C/C++ 0.068 0.15 0.32 0.76 1.7 4.0 9.3 22 47 113 287 S
V3 MS compiler 64b SSE code 0.020 0.040 0.08 0.22 0.64 1.6 3.9 8.7 19 46 133 S
V1 Original 32b All C/C++ 0.037 0.08 0.19 0.50 1.8 4.4 11 30 66 192 598
V2 Original 32b i386 code 0.026 0.056 0.12 0.30 0.8 1.8 4.5 11 24 57 162
V3 Original 32b SSE Code 0.020 0.041 0.09 0.22 0.60 1.5 3.8 8.5 19 46 133 S
Core 2 Duo 2400 MHz Windows Vista 64 bit
V1 MS compiler 64b All C/C++ 0.039 0.10 0.28 0.69 1.6 3.7 8.4 21 50 121 394 S
V2 MS compiler 64b All C/C++ 0.047 0.11 0.26 0.41 0.9 2.0 4.3 10 22 52 127 S
V3 MS compiler 64b SSE code 0.034 0.07 0.11 0.28 0.6 1.4 3.0 6.7 16 37 90 S
V1 Original 32b All C/C++ 0.043 0.11 0.26 0.71 1.6 3.7 8.2 18 42 104 439
V2 Original 32b i386 code 0.054 0.12 0.19 0.44 1.0 2.2 4.7 11 24 58 140
V3 Original 32b SSE Code 0.025 0.05 0.12 0.29 0.7 1.5 3.2 7.0 16 40 100 S
Core i7 2800 MHz Windows 7 64 bit (up to 3.06 GHz using Turbo Boost)
V1 MS compiler 64b All C/C++ 0.023 0.05 0.15 0.38 0.89 2.1 5.5 13 34 80 178 S
V2 MS compiler 64b All C/C++ 0.021 0.05 0.10 0.24 0.54 1.2 2.5 5.5 12 30 76 S
V3 MS compiler 64b SSE code 0.015 0.03 0.07 0.17 0.42 0.94 2.0 4.3 9.3 22 54 S
V1 Original 32b All C/C++ 0.033 0.08 0.18 0.46 1.0 2.4 6.5 14 31 75 168
V2 Original 32b i386 code 0.026 0.05 0.12 0.27 0.64 1.4 3.0 6.5 14 32 78
V3 Original 32b SSE Code 0.017 0.04 0.08 0.18 0.45 1.0 2.1 4.6 10 23 58 S
Core i7 4820K 3900 MHz Windows 8.1 64 bit (Using Turbo Boost, )
V1 MS compiler 64b All C/C++ 0.013 0.03 0.09 0.26 0.63 1.6 4.0 10 27 69 171 S
V2 MS compiler 64b All C/C++ 0.022 0.05 0.11 0.24 0.54 1.2 2.5 5.1 11 24 53 S
V3 MS compiler 64b SSE code 0.009 0.02 0.043 0.11 0.28 0.62 1.4 2.9 6.3 15 35 S
V1 Original 32b All C/C++ 0.021 0.047 0.11 0.28 0.60 1.5 4.1 9 19 48 113
V2 Original 32b i386 code 0.016 0.034 0.07 0.17 0.40 0.9 1.9 4.1 9 20 49
V3 Original 32b SSE Code 0.010 0.022 0.05 0.12 0.29 0.7 1.4 3.0 7 15 37 S
Double Precision
Athlon 64 2210 MHz Windows XP Pro x64
V1 MS compiler 64b All C/C++ 0.069 0.22 0.87 3.0 7.6 24 67 193 427 907 1923 S
V2 MS compiler 64b All C/C++ 0.11 0.24 0.54 1.4 3.3 8.5 19 42 90 192 438 S
V3 MS compiler 64b SSE2 code 0.056 0.12 0.29 0.87 2.3 5.9 13 29 63 138 306 S
V1 Original 32b All C/C++ 0.058 0.13 0.36 1.4 3.4 8.9 51 119 258 559 1219
V2 Original 32b i386 code 0.041 0.086 0.22 0.77 2.1 5.8 13 29 66 147 326
V3 Original 32b SSE2 Code 0.056 0.12 0.29 0.90 2.4 6.3 14 30 65 145 315 S
Phenom II 3000 MHz Windows 7 64 bit
V1 MS compiler 64b All C/C++ 0.042 0.10 0.71 2.8 6.9 17 40 94 242 575 1305
V2 MS compiler 64b All C/C++ 0.086 0.19 0.44 1.3 2.8 6.1 14 29 65 153 351
V3 MS compiler 64b SSE2 code 0.028 0.059 0.15 0.54 1.3 2.9 6.3 14 32 81 180
V1 Original 32b All C/C++ 0.042 0.10 0.25 0.9 2.2 5.3 15 33 94 303 740
V2 MS compiler 64b All C/C++ 0.028 0.059 0.15 0.45 1.0 2.5 5.6 13 32 88 216
V3 Original 32b SSE2 Code 0.028 0.058 0.15 0.53 1.3 2.9 6.3 14 32 82 186 S
Core 2 Duo 2400 MHz Windows Vista 64 bit
V1 MS compiler 64b All C/C++ 0.063 0.15 0.37 0.83 1.9 4.2 10.3 25 61 213 577 S
V2 MS compiler 64b All C/C++ 0.057 0.13 0.29 0.63 1.4 3.0 6.6 15 36 82 186 S
V3 MS compiler 64b SSE2 code 0.030 0.07 0.17 0.37 0.8 1.8 4.2 10 24 59 131 S
V1 Original 32b All C/C++ 0.052 0.13 0.35 0.78 1.7 3.8 8.5 20 52 226 543
V2 Original 32b i386 code 0.042 0.10 0.22 0.48 1.1 2.4 5.2 12 31 75 167
V3 Original 32b SSE2 Code 0.031 0.07 0.18 0.38 0.9 1.9 4.1 10 25 63 139 S
Core i7 2800 MHz Windows 7 64 bit (up to 3.06 GHz using Turbo Boost)
V1 MS compiler 64b All C/C++ 0.035 0.09 0.21 0.49 1.2 3.0 6.8 18 41 93 295 S
V2 MS compiler 64b All C/C++ 0.032 0.07 0.15 0.33 0.76 1.6 3.5 7.6 19 51 128 S
V3 MS compiler 64b SSE2 code 0.023 0.05 0.12 0.26 0.62 1.4 2.9 6.2 15 39 93 S
V1 Original 32b All C/C++ 0.040 0.09 0.23 0.52 1.2 3.2 7.1 15 37 86 284
V2 Original 32b i386 code 0.028 0.06 0.14 0.30 0.73 1.6 3.4 7.2 17 41 95
V3 Original 32b SSE2 Code 0.023 0.05 0.12 0.26 0.65 1.4 3.1 6.5 15 37 86 S
Core i7 4820K 3900 MHz Windows 8.1 64 bit (Using Turbo Boost, from 3700 MHz)
V1 MS compiler 64b All C/C++ 0.023 0.06 0.14 0.35 0.84 2.0 4.6 12 31 77 247 S
V2 MS compiler 64b All C/C++ 0.030 0.07 0.14 0.31 0.67 1.4 3.0 6.4 15 36 89 S
V3 MS compiler 64b SSE2 code 0.012 0.03 0.07 0.15 0.37 0.80 1.7 3.7 8.5 22 58 S
V1 Original 32b All C/C++ 0.023 0.054 0.14 0.31 0.7 2.0 4.4 9 23 57 192
V2 Original 32b i386 code 0.017 0.038 0.09 0.19 0.47 1.0 2.2 4.6 10 26 62
V3 Original 32b SSE2 Code 0.013 0.030 0.07 0.15 0.40 0.9 1.9 4.0 9 22 55 S
To Start
Cache & RAM Key
L1 and L2 cache size e.g. 16 = 8 KB L1 and 256 KB L2
1 = 8 KB 2 = 16 KB 3 = 32 KB 4 = 64 KB 5 = 128 KB
6 = 256 KB 7 = 512 KB 8 = 1 MB 9 = 2 MB A = 4 MB
H = 24 KB
Z = 512 KB + 6 MB X = 256 KB + 8 MB W = 256 KB + 3 MB, V = 256 KB + 10 MB
B = L2 on memory bus F = At CPU MHz H = Half CPU MHz
Bus/Memory Speed
Numbers 33, 50, 66, 100, 133 = MHz
DD1 = DDR at 133 MHz DC1 = Dual Channel DDR at 133 MHz
DD2 = DDR at 166 MHz DC2 = Dual Channel DDR at 166 MHz
DD3 = DDR at 200 MHz DC3 = Dual Channel DDR at 200 MHz
RD2 = RDRAM 400 MHz RD1 = One Channel RDRAM 400 MHz
RD3 = RDRAM 533 MHz DC4 = DDR2 533 MHz
DC5 = DDR2 666 MHz DC6 = DDR2 800 MHz
DC7 = DDR3 1066 MHz DC8 = DDR3 1333 MHz
QC9 = DDR3 1600 MHz 4 channel
SCC = DDR2 533 MHz single channel
# = Paticularly slow memory
S - last column - uses SSE or SSE2 instructions
To Start
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Roy Longbottom September 2015
The new Internet Home for my PC Benchmarks is via the link
Roy Longbottom's PC Benchmark Collection
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