Sneak Peek: Core 2 Extreme X6900 and Athlon 64 FX-64 Performance Preview
Application Benchmarks - Part 2
PCMark05 and XMpeg 5.03
PCMark05 shows a more interesting performance breakdown with its subsystem targeted workloads. The Athlon 64 FX-64 also shows 5 - 7% performance increase over the FX-62, which is expected. However, while it manages to catch up to the Core 2 Duo E6600 in terms of memory subsystem performance, the FX-64 is still left behind by the 2.4GHz E660 in the CPU workloads. As such, applications that favor memory performance will probably perform better on the FX-64, but the Core 2 will still dominate CPU intensive tasks.
DivX encoding is another example of a CPU intensive task and as you can see, both the Athlon 64 FX-62 and FX-64 lagging behind, even though the FX-64 manages to shave off 47 seconds from the FX-62. The Core 2 Extreme X6800 can encode the same video more than two minutes faster and the X6900 will probably set a new standard by cutting another solid 32 seconds off the X6800.