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PC Magazine Business Winstone 2004

The 670 falls slightly behind the two fastest Athlon 64s, but comes out ahead of the Venice at 2.2Ghz, the P4-560 and the 820 - the second core did not overcome the frequency advantage of the 560 and 670 Intel processors.

PC Magazine Multimedia Content Creation 2004

The 670 did reasonably well in Multimedia Content Creation 2004; it was outperformed only by the two faster Athlon 64s by approximately 7%. The lower core speed of the 820 and the lack of multi-threading in the benchmark left the 820 30% behind the leader.

SiSoft Sandra CPU Arithmetic

The Sandra CPU benchmark helps to highlight future gains to be had by multi-threading oriented software. The two multi-core processors handily beat the non-multi-core processors -- it's not even close. This test also seems to show that the AMD multi-core implementation performs better (at least in Sandra!) than the Intel multi-core chip. The 4200+ is a good 23% faster than the 820 for ALU MIPS, and the 820 (with two 2.8 GHz cores) is a good 33% faster than the 3.8 GHz core 670

SiSoft Sandra Memory Bandwidth

The Sandra memory benchmark has the Athlon 64s performing approximately 10% better than their Intel bretheren -- which does not jibe with the RightMark results. Here it looks like having the memory controller on the processor versus in the Northbridge really does help.