OCZ 4000 VX
AnandTech: OCZ VX Memory + DFI nForce4 = DDR533 at 2-2-2
OCZ VX Gold is the best performing memory that we have tested on the Athlon 64 platform. At the same speed and same timings, it significantly outperforms any other memory that we have tested on A64. VX does not run at the fastest memory speeds that we have found in our benchmarks – quite a few memories based on Samsung TCCD or Hynix memory chips reach significantly higher speeds than the DDR538 of OCZ VX Gold. However, at DDR534 2-2-2-6 timings, no memory that we have tested outperforms VX. VX is so fast that 533 actually outperforms memory that have achieved DDR600 or more in our memory tests.
If you are a raving enthusiast, you will have to have OCZ VX memory. If you are considering a DFI nForce4 purchase, then VX should be at the top of your memory list.