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AMD Phenom vs. Athlon Core Shootout

Phenom Models and Details, Continued

We were particularly interested in AMD's claims of Phenom performing up to 25% faster per clock than the recent Athlon 64 X2 processors. Given that there hasn't been any architectural revolution like the one that Intel initiated when switching from Netburst to Core, a 25% performance enhancement per clock is significant. It even appears a bit hard to believe, which is why decided to have a close look at the new processor. We compared the Athlon 64 X2 and Phenom 9900 at a 2.6 GHz base clock speed, using only a single core.

Phenom CPUs
NameClock SpeedL2 CacheL3 CacheTDP
AMD Phenom 97002.4 GHz4x 512 kB2 MB125 W
AMD Phenom 96002.3 GHz4x 512 kB2 MB95 W
AMD Phenom 95002.2 GHz4x 512 kB2 MB95 W

Phenoms all look alike: this is our engineering sample, which is multiplier-unlocked.