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Proth Benchmark Results

Yves Gallot's Proth program can be used to find large primes. Indeed, it has found many of the largest known primes!

This page gives results of the Proth program's benchmark, for a variety of machines. These results may help you decide which ranges to search for primes on a particular hardware configuration.

Although the Proth program was originally designed for testing numbers of the form k*2^n+1, it is now more efficient at testing numbers of the form b^n+1. These Generalised Fermat Numbers (GFN) now represent your best chance to find an exceptionally large prime with the Proth program. Benchmarks for the GFN mode of the Proth program can be found here.

New! The latest version of Proth is Version 7.0.

Proth Mark: Gives relative speed of:
PM1 Trial factoring
PM2 Proth testing around 2^32000
PM3 Proth testing around 2^64000
PM4 Proth testing around 2^128000
PM5 Proth testing around 2^256000
PM6 Proth testing around 2^512000
PM7 Proth testing around 2^1024000
PM8 Proth testing around 2^2048000
PM9 Proth testing around 2^4096000

CPU L1
Cache
(KB)		 L2
Cache
(KB)		 L2
Speed
(MHz)		 RAM
Type		 Bus
Speed
(MHz)		 Proth
Version		 Overall
Proth Mark		 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 Notes
Athlon XP 2100+ 64I\64D 256 1733 DDR SDRAM 266 7.0 2247 1144 3240 2789 2780 2470 1929 1956 1949 1968 VIA KT333
Pentium IV 2133A 12T\8D 512 2133 DDR SDRAM 533 7.0 2204 710 2455 2181 2417 2635 2306 2353 2411 2368 OC'd Pentium IV (133*16), SIS 645DX, DDR 333
Athlon XP 1800+ 64I\64D 256 1533 DDR SDRAM 266 6.8 2005 953 2826 2416 2436 2191 1767 1840 1810 1810 VIA KT266A
Athlon XP 1700+ 64I\64D 256 1466 DDR SDRAM 266 7.0 1965 957 2697 2317 2315 2124 1779 1831 1824 1844 SiS 735 (K7S5A)
Athlon XP 1500+ 64I\64D 256 1333 DDR SDRAM 266 6.8 1788 815 2455 2108 2014 1953 1654 1673 1696 1731 ABIT KG7-Lite
Pentium IV 1600A 12T\8D 512 1600 DDR SDRAM 400 7.0 1711 532 1774 1643 1805 2012 1931 1905 1923 1882 SIS 645DX, DDR 333
Duron 910 64I\64D 64 910 SDRAM 143 6.8 1116 554 1640 1373 1064 990 1041 1112 1127 1147 OC'd Duron 650, ABIT KT7-RAID
Thunderbird 1050 64I\64D 256 1050 SDRAM 140 6.1 1083 540 1462 1443 1423 1300 1049 1022 805 704 OC'd Thunderbird 750 (105*10)
Pentium III 960 16I\16D 256 960 SDRAM 160 6.6 942 531 1234 1119 1178 1009 860 853 856 842 OC'd Pentium III 800 (160*6)
Thunderbird 800 64I\64D 256 800 SDRAM 100 6.1 863 417 1105 1095 1103 1025 881 863 686 593 Asus A7V
Pentium III 933 16I\16D 256 933 SDRAM 133 6.1 829 445 1060 1044 1085 923 725 737 715 727 WinNT
Pentium III Xeon 800 16I\16D 256 800 SDRAM 133 6.1 747 382 909 900 936 853 678 689 685 698 WinNT
Athlon 707 64I\64D 512 353 SDRAM 133 6.1 772 360 960 941 939 1006 893 818 576 460 ASUS A7V, OC'd Athlon 700 (101*7)
Athlon 700 64I\64D 512 350 SDRAM 133 6.1 735 358 964 937 818 851 839 809 580 467 ASUS A7V
CPU L1
Cache
(KB)		 L2
Cache
(KB)		 L2
Speed
(MHz)		 RAM
Type		 Bus
Speed
(MHz)		 Proth
Version		 Overall
Proth Mark		 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 Notes
Athlon 700 64I\64D 512 350 SDRAM 100 5.4 590 363 821 781 685 711 643 541 386 383 ASUS K7M
Athlon 600 64I\64D 512 300 SDRAM 100 5.4 537 308 701 676 596 660 642 533 369 355 Irongate Chipset (rev 3 - release)
PentiumIII 700E 16I\16D 256 700 SDRAM 100 5.7 513 334 633 631 625 521 467 466 470 472 -
Celeron 850 16I\16D 128 850 SDRAM 100 5.7 502 400 750 657 491 426 430 440 458 467 OC'd Celeron 566
Athlon 550 64I\64D 512 225 SDRAM 100 5.4 497 283 641 614 533 599 581 503 365 359 -
PentiumIII 600E 16I\16D 256 600 SDRAM 100 5.6 448 283 533 536 533 461 417 419 428 427 -
PentiumIII 600E 16I\16D 256 600 SDRAM 100 5.4 444 284 526 529 522 435 422 419 430 433 -
PentiumIII 600 16I\16D 512 300 SDRAM 100 5.6 432 227 446 439 455 521 508 451 426 422 -
CPU L1
Cache
(KB)		 L2
Cache
(KB)		 L2
Speed
(MHz)		 RAM
Type		 Bus
Speed
(MHz)		 Proth
Version		 Overall
Proth Mark		 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 Notes
PentiumIII 500 16I\16D 512 250 SDRAM 100 5.4 394 209 402 395 413 471 462 409 395 394 WinNT
Celeron 550 16I\16D 128 550 SDRAM 100 5.4 360 253 481 404 333 323 340 358 373 376 OC'd Celeron 366
PentiumIII 450 16I\16D 512 225 SDRAM 100 5.2 340 175 341 336 350 400 400 364 350 347 WinNT
PentiumII 450 16I\16D 512 225 SDRAM 100 5.2 334 172 333 328 344 390 391 362 345 342 WinNT
Celeron 450 16I\16D 128 450 SDRAM 100 5.4 322 204 384 362 313 299 318 328 343 354 WinNT,OC'd Celeron 300A,2 way SMP, 2nd CPU idle
Celeron 450 16I\16D 128 450 SDRAM 100 5.1 316 213 406 360 278 302 301 338 317 330 Win98,OC'd Celeron 300A,PC100 SDRAM CAS2
PentiumII 464 16I\16D 512 232 SDRAM 103 5.0 311 183 335 329 338 360 332 315 314 296 Win98,OC'd PentiumII 450
Celeron 450 16I\16D 128 450 SDRAM 100 5.4 308 199 375 343 290 293 312 326 324 317 WinNT,OC'd Celeron 300A,2 way SMP, 2nd CPU lighty loaded
Celeron 450 16I\16D 128 450 SDRAM 100 4.3 298 202 379 344 278 272 287 303 311 310 Win98,OC'd Celeron 300A
PentiumII 450 16I\16D 512 225 SDRAM 100 5.0 297 178 328 321 328 351 312 295 289 274 WinNT,PC100 SDRAM
Celeron 466 16I\16D 128 466 SDRAM 66 5.4 295 219 410 391 287 250 260 271 281 289 WinNT
PentiumII 400 16I\16D 512 200 SDRAM 100 5.2 294 154 299 291 298 332 331 324 312 311 -
Celeron 450 16I\16D 128 450 SDRAM 100 5.4 288 195 366 333 272 261 274 289 298 304 WinNT,OC'd Celeron 300A,2 way SMP, 2nd CPU heavily loaded
PentiumII 333 16I\16D 512 166 SDRAM 66 6.1 246 130 258 254 263 299 291 252 239 235 -
Celeron 333 16I\16D 128 333 SDRAM 66 5.2 238 154 286 279 233 220 232 241 251 253 -
Celeron 448 16I\16D 0 0 SDRAM 112 4.3 232 109 240 226 230 252 274 267 265 229 Win98, PC100 SDRAM, OC'd (1)
PentiumII 300 16I\16D 512 150 SDRAM 66 5.7 228 119 235 231 239 272 270 240 226 224 -
Celeron 333 16I\16D 128 333 SDRAM 66 5.1 212 154 280 241 195 194 202 211 218 219 -
PentiumII 300 16I\16D 512 150 SDRAM 66 4.3 206 102 228 225 231 247 220 205 205 193 WinNT
Celeron 400 16I\16D 0 0 SDRAM 100 4.3 205 96 220 195 198 221 244 244 237 198 Win98, PC100 SDRAM, OC'd (1)
CPU L1
Cache
(KB)		 L2
Cache
(KB)		 L2
Speed
(MHz)		 RAM
Type		 Bus
Speed
(MHz)		 Proth
Version		 Overall
Proth Mark		 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 Notes
Celeron 300A 16I\16D 128 300 SDRAM 66 4.3 198 139 251 227 184 182 191 201 206 206 -
PentiumII 266 16I\16D 512 133 SDRAM 66 4.3 187 91 203 200 203 214 204 195 195 180 WinNT
AMD K6-3 450 32I\32D 256 450 SDRAM 100 5.4 173 183 174 172 170 173 174 170 170 172 -
PentiumII 233 16I\16D 512 117 SDRAM 66 5.1 165 95 176 169 173 188 179 173 173 163 -
Pentium Pro200 8I\8D 256 200 EDO 66 5.4 154 91 171 169 167 163 159 159 156 154 -
Celeron 266 16I\16D 0 0 SDRAM 66 4.3 136 63 142 134 135 149 160 156 155 134 Win98, PC100 SDRAM
Pentium 200MMX 16I\16D 1024 66 SDRAM 66 5.2 128 100 122 121 124 133 150 141 134 135 VIA VP2 Chipset
Pentium 200MMX 16I\16D 512 66 SDRAM 66 6.8 126 100 141 132 141 153 124 105 133 105 Reference Machine
AMD K6-2 400 32I\32D 1024 100 SDRAM 100 5.1 124 139 127 118 119 128 130 122 119 114 Win98, PC100 SDRAM, OC'd 350(XT)
Pentium Pro150 8I\8D 256 150 ? 60 5.1 114 70 127 126 126 117 116 117 117 117 -
Pentium 200MMX 16I\16D 1024 66 SDRAM 66 5.1 108 99 110 106 110 111 105 108 107 104 VIA VP2 Chipset
WinChip-2 200 32I\32D 256 66 FPM 66 5.4 81 66 77 74 73 81 87 87 90 91 -
AMD K6 233 32I\32D 512 66 SDRAM 66 4.3 75 83 77 71 71 77 78 75 76 73 -
Pentium 90 8I\8D 256 60 EDO 60 5.2 58 48 55 57 57 62 64 64 62 60 -
Cyrix 6x86MX-PR150 64U 256 60 SDRAM 60 5.1 24 17 23 22 22 25 27 28 29 29 Real clock speed is 120MHz
CPU L1
Cache
(KB)		 L2
Cache
(KB)		 L2
Speed
(MHz)		 RAM
Type		 Bus
Speed
(MHz)		 Proth
Version		 Overall
Proth Mark		 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 Notes

If you have any comments or new results, please email me at andy.penrose@ntlworld.com. Please only send results from the benchmark contained within Proth 7.x. The benchmark is best run with the program at high priority and with no other major tasks running.

Last modified on 4 August 2002 by Andy Penrose