More on the Radeon 6970

Downunder wrote on 3/27/2015, 8:26 PM

So have been reading about how the Radeon 6970 is not a bad (older) video card to work with Vegas. I acquired one just recently to try out. I replaced it with my Nvidia GTX570 (uninstalled all the drivers) Installed the recommended 13.9 AMD driver and Catalyst software. Sadly not only was there no difference in timeline frame rate (which is what I am looking for) but Vegas rendering and computer became unstable (blank light grey screen). So I have decided to bite the bullet and do a complete fresh install of Windows(7) etc. A couple of questions: Are there any settings I should apply in the Catalyst software?.... I use a Blackmagic Intensity Pro for external monitoring and capturing analogue (VHS tapes). When looking at the Bus interface info in GPU-Z the Radeon shows PCI_E @x 8 (it is in the PCI-E 16 slot) is this sharing an issue due to the BM card in the other slot? I have a Intel DZ77GA-70K MB.

Finally one more question, when one renders out via the "Vegas to Handbrake" route does it use the GPU if it is applied in the Vegas Video Options" or does it just use CPU ?

Cheers all

Comments

OldSmoke wrote on 3/27/2015, 9:18 PM

If your BM card is in the other PCIex16 slot the yes, both slots will fall back to x8. This is a limitation of the CPU type for your mitherboard; socket 1150 can only support 1x PCIex16. You would need socket 2011 or 2011-v3 to get 2x PCIex16.

Aside from that, the HD6970 is about even with the GTX570; I had both too previously.

Downunder wrote on 3/27/2015, 11:07 PM

Thanks OldSmoke

Would the 6970 perform better in Vegas if I upgraded to a MB with socket 2011

NormanPCN wrote on 3/27/2015, 11:40 PM

Even PCIe 2.0 at x8 you still have a 4GB/s transfer rate. PCIe 3.0 x8 would about about 7.5GB/s.

I have doubts that Vegas is near being bus limited with PCIe 2.0 x8, let alone PCIe 3.0 x8.

OldSmoke wrote on 3/28/2015, 6:23 AM

Downunder
I first try and take out the BM card; don't need to uninstall drivers and see if there is a performance difference. From my own experience, the HD6970 is on par with the GTX570. That's when I upgraded to 2x GTX580 and socket 2011; that was quite some improvement but software like NB TP and BCC still didn't run smooth and about 6month ago I changed to 2x R9 290 and I am glad I did.

Norman
Yes, theoretically you are right but that is hard to prove because there is no MB and 1150 socket CPU that does 2x PCIe x16. So when I changed to 2011 it was certainly faster but that could be because of the better CPU.