Intel's surprise chip is competitive, but doesn't beat AMD's top Athlon processor.

With the unexpected announcement of the company's first gaming-oriented processor--the Pentium 4 Extreme Edition--Intel obviously hoped to steal some thunder from AMD's Athlon 64 launch. But while PC World tests show that the new P4 EE outruns a standard Pentium 4, AMD's shipping Athlon 64 FX-51 outperforms both.

We tested the P4 EE, a 3.2-GHz CPU with a whopping 2MB L3 cache, on an Alienware PC originally equipped with a standard 3.2-GHz P4. That system included 1GB of memory and an ATI Radeon 9800 Pro graphics card with 256MB of graphics memory--as did each of three Athlon 64 FX-51-based systems (from Alienware, Falcon Northwest, and Voodoo).

On PC WorldBench 4, the average score of the three Athlon 64 FX-51 systems was 142, about 8 percent higher than the P4 EE system's score of 131 (the same system with a standard 3.2-GHz P4 scored 126). The FX-51-based PCs also dominated the P4- and P4 EE-based PCs in our AUGI Gauge and Premiere 6 tests. Other scores were closer, but the only test in which the P4 EE unit actually beat the AMD competition was the one for Musicmatch 7.1 encoding.See the full test report here

PCWorld