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Old 2003-11-13, 17:29   #8
E_tron
 
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Sep 2002
Austin, TX

3·11·17 Posts
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Not the same CPU, but here are some results from a 2500+ Barton (Multiplier OC to 2800+, and FSB OC to 3200+) w/ Nforce 2 Chipset. Both setting have about the same clock speed.

Abit NF7-S rev 2.0, 2500+ Barton Retail, Zalman CNPS7000A-AlCu heatsink and fan, Cosair Value Select 512MB DDR 400

OC 2500+ Barton to 2800+ (13x166) vcore 1.7

AMD Athlon(tm)
CPU speed: 2171.27 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.7, RdtscTiming=1
Best time for 384K FFT length: 29.660 ms.
Best time for 448K FFT length: 34.364 ms.
Best time for 512K FFT length: 36.730 ms.
Best time for 640K FFT length: 48.499 ms.
Best time for 768K FFT length: 58.048 ms.
Best time for 896K FFT length: 69.279 ms.
Best time for 1024K FFT length: 77.787 ms.
Best time for 1280K FFT length: 104.788 ms.
Best time for 1536K FFT length: 123.324 ms.
Best time for 1792K FFT length: 151.936 ms.
Best time for 2048K FFT length: 164.968 ms.


OC 2500+ Barton to 3200+ (200x11) vcore 1.7

AMD Athlon(tm) XP 3200+
CPU speed: 2194.11 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.7, RdtscTiming=1
Best time for 384K FFT length: 27.547 ms.
Best time for 448K FFT length: 30.966 ms.
Best time for 512K FFT length: 33.467 ms.
Best time for 640K FFT length: 45.402 ms.
Best time for 768K FFT length: 54.100 ms.
Best time for 896K FFT length: 65.043 ms.
Best time for 1024K FFT length: 71.524 ms.
Best time for 1280K FFT length: 94.931 ms.
Best time for 1536K FFT length: 112.861 ms.
Best time for 1792K FFT length: 136.426 ms.
Best time for 2048K FFT length: 150.994 ms.


It looks like bus speed helps some, but not too much.
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