RandMem Benchmark Results On PCs
See Results Index below
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Description
RandMem benchmark carries out eight tests at increasing data sizes to produce data transfer rates in MBytes Per Second from caches and memory. Serial and random address selections are employed, using the same program structure, with read and read/write tests for 32 bit integers and 64 bit floating point numbers.
The C/C++ program structure is as follows with array xi indexing via sequential or random numbers stored in the array.
Read - toti = toti & xi[xi[i+0]] | xi[xi[i+2] & xi[xi[i+4]] |& to i+30
Read/write - xi[xi[i+2]] = xi[xi[i+0]]; repeated to i+30 and i+28
The main purpose is to demonstrate performance differences between sequential and random access when using the same CPU instructions, particularly the impact of burst reading (and writing) over a bus. In this case, with random access, 32 bytes or more will be read when only four are requested. (see also BusSpd2K - link below) Random speeds are also affected by lower level cache sizes.
A pre-compiled version of the benchmark can be found in RandMem.zip which also contains the source code, providing further explanatory comments.
Information on maximum speeds when different processing is involved can be obtained from BusSpd2K results.htm and SSE3DNow results.htm .
A version to test two CPUs is also available (See DualCore.htm, Win64.htm and Below).
Then there is My Main Page for other PC benchmarks and results.
Following is an example output for a 3.0 Ghz Pentium 4E. Variations in performance identify L1 and L2 cache sizes, but it should be noted that speed can be slower than normal when data size equals cache size.
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Integer....................... Double/Integer................
Serial........ Random........ Serial........ Random........
RAM Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt
KB MB/Sec MB/Sec MB/Sec MB/Sec MB/Sec MB/Sec MB/Sec MB/Sec
L1 6 9620 5664 9712 3460 7991 7733 7992 4655
12 8592 5057 9840 3436 8015 7874 8894 4414
L2 24 6533 3017 5327 3043 7653 4443 7431 3941
48 6457 2986 3857 2707 7855 3969 6891 3505
96 6304 2944 3482 2541 7517 4821 6899 3250
192 6892 3073 3309 2626 7651 4131 6205 3354
384 6720 2925 2231 2156 7245 4114 5594 3296
768 5224 2631 1255 1314 7455 4196 2568 2262
RAM 1536 3517 1727 436 300 3454 2092 1394 1161
3072 3340 1681 235 171 3565 2090 440 312
6144 3517 1731 182 141 3533 2080 325 224
12288 3508 1688 169 131 3569 2000 284 207
24576 3523 1656 166 126 3523 2092 266 196
49152 3510 1683 162 124 3537 2035 258 188
98304 3442 1736 160 122 3557 2091 255 187
196608 3511 1731 155 118 3499 2083 249 185
393216 3304 1659 133 105 3554 2089 231 176
To Start
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Results
Separate tables of speeds obtained via L1 cache, L2 cache and RAM are given below. Except when connected via the memory bus, performance via caches tends to be proportional to CPU MHz for a given type of processor. So, only a sample of results are provided. Details of cache sizes, speed and range of CPU MHz can be found in CPUSpeed.htm.
L1 Cache Results - The results show that Pentium 4 CPUs can produce faster data transfer rates than AMD processors of the same MHz on serial and random integer reading tests, but they perform much worse with reading/writing. Core 2 Duo is the best overall. To clarify the results, the table includes instructions/byte ratios that can be used to convert MBytes/second to Millions of Instructions Per Second (MIPS). These have been used to produce the example %MIPS/MHz figures shown. Note that serial and random speeds are generally similar on L1 cache.
L2 Cache Results - Results provided are fastest serial speeds and random speeds at 96 KB. The latter decreases with increased memory demands and depends on L1 cache size to some extent. Again example %MIPS/MHz calculations are given, showing that both Intel P4 and AMD CPUs can be faster on some of the tests but Core 2 Duo is better than both.
RAM Results - This shows maximum serial speeds and random access performance at 6144 KB (6 MB). An indication of the type and speed of RAM is also shown. Best performance on sequential operation is shared between Pentium 4 and Pentium 4E, with Pentium M being best on random access. AMD CPUs show improvements over Integer Serial Read speeds on the other test but only the Athlon 64 provides reasonable comparative performance across the board.
The latest results are for Core 2 Duo, showing some excellent and some poor speeds. The latter might be due to the nForce 570 chipset used. Later results via Intel 965 chipset confirmed this suspicion.
RAM Random Access Results - As random access speeds tend to reduce with increased data size, results are given here for the first random reading test at 1.5 to 96 MB. L2 cache sizes are also included to show that larger caches generally produce better performance. The impact of reading a burst of data is reflected by the relative good performance of Pentium III CPUs. These have 32 byte bursts compared with 64 or more on the other CPUs. AMD Athlons have greater reductions in speed at the higher data sizes.
Dual Core Results See below.
To Start
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L1 Cache Results in MBytes/Second - sorted by CPU MHz
Integer Double/Integer
Serial Random Serial Random
Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt
80486 DX2 66 63 80 69 87 47 65 51 80
Pentium 100 205 243 200 233 248 301 258 281
Pentium MMX 200 439 525 434 510 565 669 564 634
Pentium Pro 200 654 308 654 470 760 662 794 681
Pentium II 450 1471 1072 1508 1077 1745 1530 1801 1495
Celeron A 450 1496 1084 1511 1084 1757 1508 1761 1485
Pentium III 450 1500 1066 1482 1034 1702 1472 1719 1499
AMD K62 500 1114 1434 1131 1356 790 1575 841 1510
Celeron 2 566 1900 1375 1908 1357 2276 1928 2263 1882
Duron 700 1582 1730 1615 1727 2819 2320 2575 2253
Pentium IIIE 733 2460 1772 2462 1751 2909 2491 2928 2437
Athlon 800 1843 2025 1918 2017 2031 2401 1893 2444
Athlon Tbird 1000 2310 2514 2360 2471 4038 3310 3687 3256
Celeron M 1295 4620 3199 4511 3152 6404 4359 6666 4383
Pentium 4 1800 6361 3421 6559 2378 6139 5687 6138 3021
Ath4 Barton 1800 4068 4290 4077 4438 7377 5960 6654 5843
Core 2 Duo M 1830 4317 7669 6611 5123 8875 9348 9316 8444
Pentium M 1862 6586 4612 6701 4584 9793 6304 9771 6288
Pentium 4 1900 6553 3667 6788 2511 6361 6188 6443 3192
Turion 64 M 1900 4691 5222 4776 4965 7891 6653 7569 6660
Opteron 2000 4514 4909 4532 4922 8063 6609 7421 6464
Celeron C2 M 2000 6884 7227 7095 5034 10163 10333 6852 7987
Athlon XP 2080 4728 5215 4755 5158 8268 6830 7618 6800
Athlon 64 2210 5554 6072 5532 6129 9772 7799 9165 7724
Core 2 Duo 1 CP 2400 8821 9518 8806 7379 12415 12690 12405 12464
Pentium 4E HT 3000 9620 5664 9840 3460 8015 7874 8894 4655
Pentium 4 3000 10397 5781 10768 3830 10230 9448 10255 4938
Phenom II 3000 12252 8269 11570 8222 15567 10000 15514 10664
Core i7 #### 12122 7425 12505 6818 16279 9503 16598 10807
Pentium 4 3678 12630 7668 13268 4703 12561 11942 12478 6096
MIPS multiply by 0.55 0.37 0.55 0.37 0.28 0.31 0.28 0.31
#### 2800 MHz mainly running using Turbo Boost at 3460 MHz
%MIPS/MHz
Pentium II/III 186 89 186 88 112 106 112 104
Pentium M 196 91 200 90 148 106 148 106
Pentium 4 190 77 200 47 96 101 95 52
Pentium 4E HT 178 69 182 42 75 82 83 48
Celeron C2 M 189 134 195 93 142 160 96 124
Core 2 Duo M 130 155 199 104 136 158 143 143
Core 2 Duo 1 CP 202 147 202 114 145 164 145 161
Core i7 assume 3.46 GHz 193 79 199 73 132 85 134 97
Core i7 assume 2.80 GHz 238 98 246 90 163 105 166 120
Athlon XP 126 92 127 91 112 103 103 102
Turion 64 136 102 138 97 116 109 112 109
Athlon 64 139 101 139 102 124 110 117 109
Phenom II 225 102 212 101 145 103 145 110
To Start To Index
L2 Cache Results in MBytes/Second at 96 KB - same order as L1 speeds
Integer Double/Integer
Serial Random Serial Random
Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt
80486 DX2 66 23 17 11 12 22 15 12 14
Pentium 100 96 73 32 40 89 69 35 46
Pentium MMX 200 195 135 86 93 183 132 94 110
Pentium Pro 200 487 269 208 132 613 310 357 207
Pentium II 450 700 325 313 136 559 398 323 177
Celeron A 450 994 769 287 233 912 813 319 309
Pentium III 450 801 335 303 141 794 406 526 230
AMD K62 500 400 182 72 55 425 221 111 77
Celeron 2 566 1505 1222 373 356 1186 1376 388 426
Duron 700 1143 1073 678 718 1210 1313 1203 1390
Pentium IIIE 733 2060 1674 1531 993 2593 1827 2275 1479
Athlon 800 840 576 610 320 1169 864 1193 1048
Athlon Tbird 1000 1636 1543 976 1028 2520 1906 2454 2066
Celeron M 1295 3386 2678 1930 1009 4447 3183 3115 1649
Pentium 4 1800 4143 2129 2621 1901 6541 5023 4903 2313
Ath4 Barton 1800 2968 2819 1571 1814 4525 3220 4378 3733
Core 2 Duo M 1830 5793 6735 3061 2717 7520 6418 5412 4198
Pentium M 1862 4833 4132 2807 1458 6733 4965 4393 2371
Pentium 4 1900 5115 2215 2745 1965 6786 3036 4713 2437
Turion 64 M 1900 2804 2671 2486 2393 4426 3994 4797 4140
Opteron 2000 3128 3198 2881 2731 5222 3671 5249 4402
Celeron C2 M 2000 6213 7155 3319 3006 8788 7702 6050 4428
Athlon XP 2080 3458 3311 2054 2112 5232 3931 5083 4419
Athlon 64 2210 4070 3734 3322 3257 6140 4420 6124 5218
Core 2 Duo 1 CP 2400 7752 8989 4112 3655 10739 9632 7335 5771
Pentium 4E HT 3000 6892 3073 3482 2541 7855 4821 6899 3250
Pentium 4 3000 8104 3238 4291 3117 9936 6036 8324 3856
Pentium 4 3678 9894 4533 5166 3785 12423 9155 9174 4396
Core i7 #### 11111 6666 5911 5429 13574 8977 10187 8073
Phenom II 3000 10549 7860 6381 5215 15308 9662 14830 9879
#### 2800 MHz mainly running using Turbo Boost at 3460 MHz
L3 Cache at 3072 KB
Core i7 #### 9762 6331 2378 2620 14411 9396 5608 4601
Phenom II 3000 7874 6680 1077 1017 9428 8358 2048 2045
MIPS multiply by 0.55 0.37 0.55 0.37 0.28 0.31 0.28 0.31
%MIPS/MHz
Pentium IIIE 156 84 116 50 99 78 87 63
Pentium M 144 81 84 29 102 83 66 40
Pentium 4 149 45 78 38 95 78 70 37
Pentium 4E HT 127 38 64 31 74 50 65 34
Celeron C2 M 171 132 91 56 123 119 85 69
Core 2 Duo M 174 136 92 55 115 109 83 71
Core 2 Duo 1 CP 178 139 94 56 125 124 86 75
Core i7 assume 3.46 GHz 177 71 94 58 110 80 82 72
Core i7 assume 2.80 GHz 218 88 116 72 136 99 102 89
Athlon XP 92 58 55 37 71 59 69 66
Turion 64 M 81 52 72 47 65 65 71 68
Athlon 64 102 62 83 54 78 63 78 74
Phenom II 193 97 117 64 143 100 138 102
To Start To Index
RAM Results in MBytes/Second at 6144 KB - sorted by serial read speeds
Integer Double/Integer
Serial Random Serial Random
MHz Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt Read Rd/Wrt
80486 DX2 66 21 10 6 7 17 10 8 9
Pentium 100 55 35 11 14 52 40 19 22
Pentium MMX P0 200 121 83 23 26 111 78 31 36
Pentium Pro P0 200 129 75 32 21 142 84 53 16
AMD K62 P1 500 132 87 18 15 130 94 26 20
Celeron A P0 300 232 115 62 41 138 151 77 57
Duron P2 700 247 193 36 30 393 343 49 46
Athlon Tbird P2 1000 249 207 38 33 488 358 62 53
Celeron 2 P0 566 276 167 80 53 253 192 93 70
Athlon P2 800 250 191 38 33 371 323 54 51
Pentium II P1 450 300 152 89 61 196 194 107 79
Pentium III P1 450 329 167 98 68 350 233 169 112
Ath4 Barton D1 1800 383 265 69 48 559 343 115 77
Athlon 4 D1 1667 453 426 129 93 699 573 222 149
Pentium IIIEB P2 1000 469 257 142 97 513 344 215 156
Pentium IIIEB P2 733 474 204 96 66 391 251 123 88
Athlon XP D2 2080 884 727 183 116 1224 880 311 187
Pentium 4 P2 1900 940 387 48 42 914 483 76 64
Celeron M 1295 1029 456 89 55 1467 632 144 93
Pentium 4 R1 1400 1324 689 107 84 1123 912 159 118
Pentium 4 D1 1800 1394 630 98 80 1658 803 168 123
Opteron D3 2000 1536 1377 121 111 2297 1822 235 217
Pentium 4 D1 2533 1561 599 75 58 1623 738 118 90
Pentium 4 D1 3066 1737 655 70 51 1718 785 125 81
Turion 64 M DC3 1900 1758 1392 247 191 2222 1704 430 304
Pentium 4 R2 2533 1968 1019 172 145 2919 1352 297 220
Pentium M DC1 1862 2073 787 340 213 2442 1238 616 376
Athlon 64 D3 1995 2100 965 156 122 2520 1432 291 225
Athlon 64 DC2 2210 2145 1451 248 159 3008 1785 402 254
Pentium 4 DC1 2533 2335 847 98 72 2303 978 166 114
Celeron C2 M DC3m 2000 3000 1212 302 183 3027 1455 514 311
Pentium 4 DC2 3678 3150 1850 181 124 4115 2103 294 196
Core 2 Duo M DC3M 1830 3384 1524 459 296 3349 1864 849 534
Pentium 4E HT DC2 3000 3523 1736 182 141 3569 2092 325 224
Core 2 Duo 1CP DC3b 2400 4854 2605 789 597 5532 3799 1486 1309
Core 2 Duo 1CP DC3a 2400 4947 770 349 208 1685 1052 932 557
Core 2 Duo 1CP DC3c 2400 5136 2775 878 657 6086 4041 1637 1396
Phenom II ## DC33 3000 6120 6079 747 654 9065 7991 1395 1220
Core i7 ## DC33 #### 7811 5110 1071 870 8036 5998 1652 1742
Maximum 7811 6079 1071 870 9065 7991 1652 1742
#### 2800 MHz mainly running using Turbo Boost at 3460 MHz, 12288 KB RAM
Key P0 66 MHz P1 100 MHz
P2 133 MHz D1 DDR 133 MHz
D2 DDR 166 MHz D3 DDR 200 MHz
DC1 Dual Channel DDR 133 MHz DC2 Dual Channel DDR 200 MHz
DC3a DDR2 533 MHz nForce 570 chipset DC3b DDR2 533 MHz Intel 965 chipset
DC3c DDR2 800 MHz Intel 965 chipset DC3M DDR2 666 MHz Mobile CPU
DC3m DDR2 533 MHz Mobile CPU DC33 DDR3 1333 MHz
R1/R2 RDRAM 400/533 MHz ## Mainly L3 cache
To Start To Index
RAM Random Reading MBytes/Second 1.5 MB to 96 MB - sorted by speed at 1.5 MB
---------------------- MBytes ------------------------
MHz Cache 1.5 3 6 12 24 48 96
Pentium 4 P2 1900 0.25 56 51 48 47 46 45 39
Pentium 4 P2 2400 0.25 69 55 50 48 47 47 43
Pentium 4 D1 3066 0.50 70 70 70 73 72 70 69
Athlon Tbird P2 1000 0.25 75 47 38 35 32 30 26
Athlon Tbird P2 900 0.25 78 46 38 34 31 29 26
Athlon Tbird D1 1200 0.25 97 64 53 49 44 40 34
Pentium 4 D1 2533 0.50 102 80 75 70 70 69 67
Athlon 4 D1 1394 0.25 107 99 95 93 54 39 29
Pentium 4 D1 1800 0.25 115 104 98 99 98 93 75
Pentium 4 DC1 2533 0.50 140 110 98 98 96 95 91
Athlon 4 D1 1667 0.25 148 134 129 121 65 43 32
Pentium IIIEB P2 933 0.25 160 136 136 140 139 119 91
Pentium IIIEB P2 1000 0.25 160 147 142 141 139 130 99
Athlon 4 D2 1768 0.25 164 152 143 139 92 64 49
Pentium 4 R1 2400 0.25 170 142 131 123 122 121 116
Celeron M 1295 1.00 199 107 89 80 77 73 65
Athlon XP D1 1733 0.25 200 177 169 163 100 66 50
Athlon XP D2 2080 0.25 213 191 183 174 101 70 53
Pentium 4 R2 2533 0.50 220 182 172 160 156 154 152
Athlon XP D2 2167 0.25 229 206 196 187 116 81 60
Pentium 4 DC2 3678 0.50 240 197 181 171 168 167 158
Turion 64 M DC3 1900 0.50 344 281 247 242 219 168 116
Athlon 64 DC2 2210 0.50 362 272 248 238 230 218 164
Pentium 4E DC2 3000 1.00 436 235 182 169 166 162 160
Celeron C2 M DC3m 2000 1.00 607 260 302 251 262 247 191
Athlon 64 D3 2000 1.00 614 274 156 124 111 105 102
Opteron D3 2000 1.00 636 255 121 91 80 75 73
Phenom II DC33 3000 0.5/6.0 1640 1077 747 587 507 441 320
Pentium M DC1 1862 2.00 1850 551 340 281 255 239 231
Core 2 Duo M DC3M 1830 2.00 1866 708 459 388 348 330 329
Core 2 Duo 1CP DC3c 2400 4.00 2623 2088 878 567 473 440 421
Core 2 Duo 1CP DC3b 2400 4.00 2650 2176 789 497 411 374 359
Core 2 Duo 1CP DC3a 2400 4.00 2664 2174 349 183 140 131 122
Core i7 DC33 #### 0.25/8.0 3561 2378 1312 1071 897 710 532
#### 2800 MHz mainly running using Turbo Boost at 3460 MHz
To Start To Index
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Dual Core Results
Programs RandMP64 and RandMP32 in DualCore.zip are compiled to run via Win64 and Win32, both manipulating 32 bit integers via C.
The tests are run firstly as a single thread and secondly using two threads at the same priority level.
There are four tests, Serial Read (RD), Serial Read/Write (RW), Random Read and Random Read/Write.
The following is an example of log file results. Results below also include 64 bit scores on a
Core 2 Duo via 64 bit Windows Vista and a Turion 64 X2 via 32 bit Vista, then 64-Bit Windows 7 on a Phenom II X4 and a Core i7.
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Athlon 64 X2 Dual Core 4200+ 2.21 GHz, DCDDR RAM, WinXP Pro X64
------------------ MBytes Per Second At --------------------
6 KB 24 KB 96 KB 384 KB 768 KB 1536 KB 12 MB 96 MB
1 Thread
Serial RD 8343 8454 5089 5092 2358 2330 2317 2299
Serial RW 3956 3962 2423 2368 1333 1328 1357 1341
Random RD 8164 8239 3732 1642 861 387 255 174
Random RW 3913 3956 2527 1403 560 239 160 134
2 Threads
Serial RD1 8434 8310 5022 5079 2032 2032 2041 2082
Serial RD2 8486 8479 5113 4957 1943 1941 1969 1945
Serial RW1 1049 1160 1110 1113 1044 858 854 855
Serial RW2 1047 1128 1082 1080 1044 862 830 815
Random RD1 8145 8063 3642 1608 480 194 128 100
Random RD2 8217 8203 3682 1625 480 196 126 101
Random RW1 423 573 458 407 353 157 85 69
Random RW2 426 588 456 407 345 154 85 69
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With two threads, each has its own code and use the same data but the second thread starts at the half way point. Each has the same number of repeat passes where variations in the time taken are reflected in the relative speeds of the two threads.
Running two threads on a single CPU produces the same sort of total speed as the single thread. With two CPUs, the speed of read only is mainly around double that of a single thread but speed via caches with read/write can be worse than for a single thread (or a single CPU). This can be put down to Windows flushing caches to maintain data coherency when sharing the same data array.
Note that Hyper-Threading (HT) can produce performance gains with two threads.
Below are available single and dual processor results for data in L1 Cache L2 Cache and RAM.
To Start To Index
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L1 Cache Results in MBytes/Second - 6 KB Serial
CPUs MHz RD RD1 RD2 RW RW1 RW2
Celeron 1 450 1604 1141 864 535 413 410
Pentium III 1 731 2724 1411 1426 1430 730 712
Celeron M 1 1295 4936 2409 2460 2644 1347 1319
Pentium 4 1 1900 6776 4697 3646 2496 1631 1505
Celeron C2M DC3m 1 2000 7516 4054 3924 7855 3758 3690
Athlon XP 1 2088 7773 4510 3911 3655 1890 1832
Pentium 4E HT 1 3000 11217 5134 5095 2255 1522 1500
Turion 64 M 2 1900 5996 6865 6886 3252 901 884
Opteron 2 1992 7580 7630 7603 3586 840 843
Athlon MP 2 2000 7471 7570 7468 3542 374 368
Athlon 64 32b 2 2210 8343 8434 8486 3956 1049 1047
Athlon 64 64b 2 2210 8552 8374 8532 4346 1090 1083
Phenom II 32b 4 3000 15215 15045 15014 6524 2596 2332
Phenom II 64b 4 3000 15853 15416 15402 5572 2695 2348
Xeon P4 2 3065 11979 12009 11921 5392 924 872
Pentium 4D 2 3000 11614 11472 11533 2279 715 710
Core 2 Duo DC3M 2 1830 6972 6193 6133 6565 2002 2052
Core 2 Duo DC3a 2 2400 9477 9372 9238 9513 1090 1094
Core 2 Duo DC3b 2 2400 9524 9479 9513 9541 1490 1487
C2 Duo 32b DC3c 2 2400 8483 8699 8662 8775 2061 2049
C2 Duo 64b DC3c 2 2400 8742 8435 8460 8428 2007 2010
Corei7 64b DC33 4 2800# 11797 11758 11751 4769 3043 2848
L1 Cache Results in MBytes/Second - 6 KB Random
CPUs MHz RD RD1 RD2 RW RW1 RW2
Celeron 1 450 1762 1014 795 804 464 447
Pentium III 1 731 2807 1406 1374 1426 641 611
Celeron M 1 1295 5017 2536 2511 2647 1351 1320
Pentium 4 1 1900 6555 4669 3590 2373 1267 1222
Celeron C2M DC3m 1 2000 7844 4002 3963 7745 3948 3840
Athlon XP 1 2088 7527 4429 3781 3686 1928 1837
Pentium 4E HT 1 3000 11410 5125 5070 3593 1709 1677
Turion 64 M 2 1900 6592 6266 6323 3206 349 347
Opteron 2 1992 7352 7363 7378 3514 390 382
Athlon MP 2 2000 7289 7346 7274 3504 212 209
Athlon 64 32b 2 2210 8164 8145 8217 3913 423 426
Athlon 64 64b 2 2210 8176 8147 8154 4384 494 495
Phenom II 32b 4 3000 13897 14120 14142 6190 689 686
Phenom II 64b 4 3000 15116 15146 15078 5666 690 692
Xeon P4 2 3065 11694 11935 12026 4188 133 132
Pentium 4D 2 3000 11621 11467 11547 3630 191 193
Core 2 Duo DC3M 2 1830 6312 6417 6183 6189 969 997
Core 2 Duo DC3a 2 2400 9490 9450 9513 9264 460 462
Core 2 Duo DC3b 2 2400 9511 9484 9514 9386 532 534
C2 Duo 32b DC3c 2 2400 8663 8660 8617 8812 738 735
C2 Duo 64b DC3c 2 2400 8918 8576 8598 8014 730 733
Corei7 64b DC33 4 2800# 11759 11785 11803 4777 1534 1527
DC3 DDR2 a 533 MHz nForce 570 chipset, b/c 533/800 MHz Intel 965 chipset
DC3M Mobile CPU 666 MHz DDR2, DC33 DDR3 1333 MHz
# 2.8 GHz i7, running at up to 3.46 GHz using Turbo Boost (Probably 3.0)
To Start To Dual Core Index
L2 Cache Results in MBytes/Second - 96 KB Serial
CPUs MHz RD RD1 RD2 RW RW1 RW2
Celeron 1 450 1153 722 576 537 290 254
Pentium III 1 731 1744 1017 1004 928 506 468
Celeron M 1 1295 3832 1960 1923 2007 1026 1002
Pentium 4 1 1900 5149 3460 2592 1609 838 814
Celeron C2M DC3m 1 2000 5432 3359 3191 6297 3163 3056
Athlon XP 1 2088 3616 2043 1813 2193 1153 1097
Pentium 4E HT 1 3000 7030 4035 4009 1429 1148 1133
Turion 64 M 2 1900 3937 3914 3939 1950 942 909
Opteron 2 1992 4522 4636 4607 2151 869 851
Athlon MP 2 2000 3571 3557 3528 2100 425 400
Athlon 64 32b 2 2210 5089 5022 5113 2423 1110 1082
Athlon 64 64b 2 2210 5115 5064 5176 2702 1110 1089
Phenom II 32b 4 3000 12532 12432 12494 6374 3105 2833
Phenom II 64b 4 3000 12645 12690 12877 5543 3041 2755
Xeon P4 2 3065 8858 8865 8455 2528 1182 1021
Pentium 4D 2 3000 7192 7191 6948 1377 762 769
Core 2 Duo DC3M 2 1830 5885 5803 5330 5688 4808 5288
Core 2 Duo DC3a 2 2400 7882 7793 7440 7573 6910 6919
Core 2 Duo DC3b 2 2400 7954 7839 7527 7601 6936 6939
C2 Duo 32b DC3c 2 2400 7859 7623 7422 7552 6754 6881
C2 Duo 64b DC3c 2 2400 7498 7334 7183 7665 6931 6789
Corei7 64b DC33 4 2800# 10645 10609 10401 4333 3317 3304
L2 Cache Results in MBytes/Second - 96 KB Random
CPUs MHz RD RD1 RD2 RW RW1 RW2
Celeron 1 450 549 302 274 342 191 171
Pentium III 1 731 943 401 398 662 324 332
Celeron M 1 1295 2351 1203 1177 1248 637 627
Pentium 4 1 1900 2840 1453 1348 1900 951 944
Celeron C2M DC3m 1 2000 3495 1777 1744 2823 1437 1415
Athlon XP 1 2088 2165 1134 1067 2034 1050 1012
Pentium 4E HT 1 3000 3843 2594 2558 1793 1367 1342
Turion 64 M 2 1900 2777 2729 2713 2010 392 392
Opteron 2 1992 3378 3300 3307 2254 458 470
Athlon MP 2 2000 2054 2070 2045 1920 202 200
Athlon 64 32b 2 2210 3732 3642 3682 2527 458 456
Athlon 64 64b 2 2210 3733 3683 3701 2865 448 449
Phenom II 32b 4 3000 7463 7426 7420 5258 809 808
Phenom II 64b 4 3000 7409 7361 7357 4991 808 808
Xeon P4 2 3065 4863 4770 4718 3232 104 104
Pentium 4D 2 3000 3708 3649 3767 1669 156 157
Core 2 Duo DC3M 2 1830 3181 2572 2708 2567 1331 1446
Core 2 Duo DC3a 2 2400 4242 3531 3565 3384 295 294
Core 2 Duo DC3b 2 2400 4260 3538 3569 3424 1101 1104
C2 Duo 32b DC3c 2 2400 4214 3461 3531 3408 1355 1365
C2 Duo 64b DC3c 2 2400 4244 3530 3478 3390 1409 1398
Corei7 64b DC33 4 2800# 6282 6298 6304 3699 2233 2221
DC3 DDR2 a 533 MHz nForce 570 chipset, b/c 533/800 MHz Intel 965 chipset
DC3M Mobile CPU 666 MHz DDR2, DC33 DDR3 1333 MHz
# 2.8 GHz i7, running at up to 3.46 GHz using Turbo Boost (Probably 3.0)
To Start To Dual Core Index
RAM Results in MBytes/Second - 12 MB Serial
CPUs MHz RD RD1 RD2 RW RW1 RW2
Celeron 1 450 399 205 213 105 57 52
Pentium III 1 731 563 288 284 204 104 104
Celeron M 1 1295 1156 587 579 483 245 238
Pentium 4 1 1900 766 452 416 371 194 191
Celeron C2M DC3m 1 2000 2600 1346 1335 1269 652 627
Athlon XP 1 2088 891 447 442 663 349 328
Pentium 4E HT 1 3000 2982 1964 1930 1351 1024 912
Turion 64 M 2 1900 1860 1611 1638 1423 1105 1046
Opteron 2 1992 706 1162 1159 631 824 807
Athlon MP 2 2000 458 454 442 446 324 312
Athlon 64 32b 2 2210 2317 2041 1969 1357 854 830
Athlon 64 64b 2 2210 2344 2021 2049 1354 864 855
Phenom II 32b 4 3000 4428 3503 3518 3541 3124 3100
Phenom II 64b 4 3000 4462 3619 3635 3532 3077 3076
Xeon P4 2 3065 2055 1452 1450 989 540 533
Pentium 4D 2 3000 2853 1917 1967 1359 946 868
Core 2 Duo DC3M 2 1830 3413 2158 2227 1544 1054 1077
Core 2 Duo DC3a 2 2400 3292 3116 3064 593 564 460
Core 2 Duo DC3b 2 2400 4119 4040 4040 2046 1420 1420
C2 Duo 32b DC3c 2 2400 4420 4069 4069 2436 1661 1561
C2 Duo 64b DC3c 2 2400 4417 4024 3962 2442 1643 1568
Corei7 64b DC33 4 2800# 8134 7215 7195 3884 3823 3822
RAM Results in MBytes/Second - 12 MB Random
CPUs MHz RD RD1 RD2 RW RW1 RW2
Celeron 1 450 90 50 45 59 29 28
Pentium III 1 731 87 55 53 58 38 36
Celeron M 1 1295 88 44 44 52 27 26
Pentium 4 1 1900 47 23 24 42 21 22
Celeron C2M DC3m 1 2000 300 153 151 174 89 87
Athlon XP 1 2088 192 103 92 116 61 58
Pentium 4E HT 1 3000 181 96 92 135 74 71
Turion 64 M DC3 2 1900 121 104 103 111 85 85
Opteron 2 1992 121 161 159 184 100 97
Athlon MP 2 2000 144 96 92 95 53 51
Athlon 64 32b 2 2210 255 128 126 160 85 85
Athlon 64 64b 2 2210 255 126 125 161 86 87
Phenom 32b DC33 4 3000 610 523 523 524 479 493
Phenom 64b DC33 4 3000 607 522 522 522 486 488
Xeon P4 2 3065 101 36 36 68 31 31
Pentium 4D 2 3000 182 91 93 144 71 72
Core 2 Duo DC3M 2 1830 359 296 294 264 154 162
Core 2 Duo DC3a 2 2400 176 164 164 118 69 69
Core 2 Duo DC3b 2 2400 548 527 527 349 265 265
C2 Duo 32b DC3c 2 2400 630 447 453 405 343 343
C2 Duo 64b DC3c 2 2400 638 450 455 418 282 277
Corei7 64b DC33 4 2800# 983 1015 1015 952 956 956
DC3 DDR2 a 533 MHz nForce 570 chipset, b/c 533/800 MHz Intel 965 chipset
DC3M Mobile CPU 666 MHz DDR2, DC33 DDR3 1333 MHz
# 2.8 GHz i7, running at up to 3.46 GHz using Turbo Boost (Probably 3.0)
To Start To Dual Core Index
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Roy Longbottom January 2010
The new Internet Home for my PC Benchmarks is via the link
Roy Longbottom's PC Benchmark Collection
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