Re: Bought new recomended graphic card from sony's site, now vegas is slower then ever why?

I think you need a little sanity checking first. Your i7 system should be noticably faster than my AMD 1090T system. And as I think it's been repeatedly pointed out, you don't get much if any GPU acceleration just playing a single video track.

Let's see here. I have Vegas 11 open now, I'm doing nothing but playing a single track, 1080/24p straight out of my HMC40, in Best/Full mode. It's playing perfectly, GPU acceleration enabled. I see 25% use of the GPU, 30-40% CPU use. Turn off the GPU, restart Vegas, I'm still seeing perfectly full quality playback, but the CPU use is now bouncing between 40-60%. This is Vegas 11/595, the AMD HD6970 GPU, witg Driver 8.911.0.0 (10/25/2011... probably a bit out of date, but it works).

Now, if you're playing video in an accelerated player on the desktop, the GPU makes a much more dramatic difference. That's because these players work with Microsoft's DXVA 2.0 video acceleration APIs, which are apparently only good for playback. I can easily play back 6+ full HD tracks without glitching using players, which it's pretty obvious that the CPU alone won't do two of them.

If Vegas isn't preforming at least as well on an i7 system, something is seriously screwed up, regardless of the GPU. Make sure you have enough RAM (I have 16GB, but 8GB is plenty), I'm running 64-bit Windows 7, fully up-to-date with patches. 64-bit is a bonus for any kind of video work, and I'd claim mandatory for HD, and for a GPU card that's got 2GB of RAM to map. Don't put too much RAM in the Vegas preview buffer unless you're actually using it -- Vegas can get weird with more than like 1-2GB there.

I have basic SATA HDDs... a 1.5TB C: drive from Seagate, and a WD "Green" 3TB drive as my main working drive. SSDs are nice for really quick boot times, but they have nothing really to do with runtime performance, and they're usually horrible at write performance. At best, an SSD on C: shouldn't be an issue, and it's never an issue anywhere else for simple playback.

I guess it's pretty obvious, but anyway, you should run Windows task manager and a GPU monitoring tool like GPUShark, which will let you kow at least where your CPU cycles are going. If you have nothing else running on your system, GPU or no GPU, you're plenty fast enough to play back full HD video in full quality mode, raw track, no plug-ins, just as a baseline. When this isn't happening, something else is going on in your system. If the system's loaded down, see where the CPU is going. Is your GPU getting used at all when you have it enabled, or not? Are all cores on your PC active when running Vegas, or do you see only one getting used (you DO have Vegas set to use them all, right?).

Anyway, you definitely need some sanity checking here. While what you see may be in a weird way related to the GPU, I don't think that's the primary problem, when you're seeing the same slowdown with acceleration disabled in Vegas, and you have a very fast PC.

-Dave