Dual core shoot-out: Intel versus AMD
Published: 03 Nov 2005
Memory and cache performance
Memory performance, as measured by ScienceMark 2, shows substantial differences between the AMD and Intel processors. AMD's integrated memory controller clearly offers superior memory access due to the lower latency. Since the memory interface is coupled to the CPU's clock speed, the 2.4GHz Athlon 64 X2 4800+ delivers slightly better memory performance than its 3800+ sibling, which is clocked 400MHz slower at 2GHz.
| ScienceMark 2 (Memory throughput; bigger is better) | ||||
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| CPU | Athlon 64 X2 | Athlon 64 X2 | Pentium D | Pentium EE |
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| Model number | 3800+ | 4800+ | 820 | 840 |
| Level 1 cache | 23,073MB/s | 27,405MB/s | n/a | n/a |
| Level 2 cache | 7,361MB/s | 8,833MB/s | n/a | n/a |
| Memory bandwidth | 5,191MB/s | 5,442MB/s | 4,568MB/s | 4,577MB/s |
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| ScienceMark 2 (Latency; smaller is better) | ||||
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| CPU | Athlon 64 X2 | Athlon 64 X2 | Pentium D | Pentium EE |
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| Model number | 3800+ | 4800+ | 820 | 840 |
| Level 1 cache (32 bytes) |
3 cycles/s | 3 cycles/s | 4 cycles/s | 4 cycles/s |
| Level 2 cache (4 bytes) |
3 cycles/s | 3 cycles/s | 6 cycles/s | 6 cycles/s |
| Level 2 cache (16 bytes) |
5 cycles/s | 5 cycles/s | 13 cycles/s | 13 cycles/s |
| Level 2 cache (64 bytes) |
17 cycles/s | 17 cycles/s | 27 cycles/s | 27 cycles/s |
| Level 2 cache (256 bytes) |
12 cycles/s | 12 cycles/s | 26 cycles/s | 26 cycles/s |
| Level 2 cache (512 bytes) |
13 cycles/s | 13 cycles/s | 25 cycles/s | 25 cycles/s |
| Memory (4 bytes) |
3 cycles/s | 3 cycles/s | 3 cycles/s | 3 cycles/s |
| Memory (16 bytes) |
12 cycles/s | 13 cycles/s | 14 cycles/s | 14 cycles/s |
| Memory (64 bytes) |
49 cycles/s | 55 cycles/s | 41 cycles/s | 41 cycles/s |
| Memory (256 bytes) |
104 cycles/s | 112 cycles/s | 254 cycles/s | 273 cycles/s |
| Memory (512 bytes) |
107 cycles/s | 116 cycles/s | 265 cycles/s | 277 cycles/s |
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I hate all the adds on this site.
and I have big f... Donny -
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Any current browser. I use IE and get no pop-ups.... Anonymous
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One point that almost all AMD vs Intel reviews are... Anonymous
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Help! Aren't we also comparing AMD 64 bit (Vi... Anonymous
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Opterons on Sun are very storng. john macentire
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Why do these reviews never provide numbers for the... Anonymous
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I likes the speed test thingy!
Also i lkes my... Anonymous
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Regarding the multimedia related tests in general... Panagiotis Issaris
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Thank you for this article. I am in the process of... cyber
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I have the top of the line amd and intel in front... Greg Meinholz
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I have started a poll on "Has Intel's New Chip Arc... Anonymous
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Luke, I am your father.. Jack Daniels
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by seing all the test above amd versus intel... belang_belonteng
