23.
I'm impresed. The 1.6GHz Athlon 64 pre-production sample shows some definite strengths. However, considering the imminent projected speed increases for Barton (3000+ and 3200+ at 400MHz memory) and Northwood (3200 at 800 MHz memory), it is clear that AMD needs to debut this processor at more than 2.0Ghz to be competitive. With such a 25% processor speed increase over the 1.6GHz model, and assuming linear performance scaling with processor speed, a different performance picture would emerge.
1. PCMark CPU - 2nd place and just ahead of Barton 2800+
2. Business Winstone - 1st place and way ahead of Barton 2800+
3. Sysmark - 2nd place just behind P4 2.8, and ahead of P4 2.53, Barton 2800+
4. MP3 encoding - 2nd place, with Barton 2800+, ahead of P4 2.53
5. WinRAR - way further ahead in first place.
6. MPEG4 - 1st place ahead of P4 2.8, Barton 2800+
7. WME - 2nd place, ahead of Barton 2800+, P4 2.53
8. Sciencemark - 1st or 2nd place...
9. Lightwave Raytrace - 1st place ahead of P4 2.8, 2.53
10. Lightwave Sunset - 2nd place with Barton 2800+, behind P4 2.8, and ahead of P4 2.53
Can AMD have the FP unit run asynchronously at a faster clock, since it is a major performance module? Lets say 25% faster than the rest of the processor? (ratio 5/4) With such a change the Athlon 64 would have dominated more of the benchmarks and more meritted its 2800+ rating.
AMD perhaps needs to review its rating system for this processor. It probably would more realistically be a 2500+ to 2600+ and a 2.0 GHz would be a 3000+ The current Barton 3000+ should probably be rated no higher than 2800+, and the 2800+ no higher than a 2500+ to 2600+. The 2500+ is more of a 2300+.
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Posted by: Vaughn

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Date: 04/21/03 08:37:58 AM]