I'm getting a new rig soonish, with a GeForce 6800 PCI-E included. Now, I've heard lots of horror stories about how video playback (especially HDTV WMV) brings the CPU up to 100% load, but supposedly the 6x00 series GeForce chips have a video processor unit which is designed to offload the CPU during these operations as well as during encoding. Now, Nvidia said that the VPU in the 6800 (at least in the AGP versions) was borken, but that it would be enabled to some extent (minus HDTV WMV decoding) in a driver release in November. You'd also need to download their DVD Decoder (so I suppose it's free now that Nvidia says it's required for proper operation of their cards?). Some hardware sites have reported that the 6800 PCI-E series had a fully working VPU (including HDTV WMV decoding) but even this required newer drivers to be enabled.
My question is, does anyone have any experience with the 66.93 WHQL drivers... is the VPU now enabled, and how does it perform on PCI-E cards when playing back HDTV content? Appreciate any info...