Thank you Nick. Technology ages more rapidly than family pets! Probably time to get a new graphics cards anyway. Perhaps the GTX 1080.

Before you buy a GTX 1080, read this and the threads it links to. AMD is currently thought to be a better choice if it's mostly for Vegas: https://www.vegascreativesoftware.info/us/forum/faq-graphics-cards-gpu-acceleration-for-vegas-pro--104614/

I saw that thread right after I posted and did read it. Before I buy anything I have to figure out what will fit into my computer and what the power demands are. Thanks.

Possibly in May, around the Computex AMD might release their new generation of graphic cards with Vega-10 GPU.

Possibly in May, around the Computex AMD might release their new generation of graphic cards with Vega-10 GPU.

Thanks. More on that: http://www.anandtech.com/show/11002/the-amd-vega-gpu-architecture-teaser

I just upgraded 378.49 drivers and I have both a 970 and 570 video cards installed. VP14 uses the GTX 970 for the display and I still have a preview window that works.

... and I am so fed up of the always surprising and time wasting Nvidia hiccups that I just ordered an AMD RX480 card with 8 GB.

(I need the large memory for a Muvizu animation program).

Wonder if I should leave the GTX970 in the machine - or not... I have a 900W power supply.

I just installed the new driver mentioned in the post, but I have no issues with my Nvidea titan-x (Maxwell).

If cspvideo is looking for a nvidea 1080 with pascal architecture to replace his current card, maybe go for the (unfortunately more expensive) new nvidea titan-x (pascal). It has  much more memory (12GB) than the 1080, so excellent for 4k, and is rated to be 20 to 30 percent faster than 1080. It is a bit a pity nvidea das not changed the name of "titan-x" from maxwell version to "pascal" version, So be careful when ordering or reading reviews..

Possibly the old card is gtx titan-x, and the new just called titan-x (without the gtx)

As far as I know the new titan-x can/could only be ordered from nvidea themselves and maximum 2 cards 😕

I am happy with my (older maxwell gtx titan-x) which is a great performer for preview, editing and plug-in use on vegas 14. For the actual final rendering it does not excel as gpu rendering is generally underwhelming (or even not available for your card/driver) in vegas. You may as well just final render with gpu disabled.   

There may be some issues with the latest driver ... https://www.pcper.com/

Thanks JN_. *Good to know.

I have also an "old" card, GTX 550Ti. With the last update, I have no preview in Vegas Pro 14, but with Vegas Pro 13 (build 453) all is working perfectly. Thus, I am not convinced with the explanation about "old cards"!

I have a GTX 1080 and I had to roll back the 378.49 driver because of problems with other software I use. So older cards may no be the issue. I also had a Windows 10 update recently that seems to have had some funny effects.

Based on feedback here and also reading the links I am rolling back to 378.49 and waiting for AMD's new cards.

As I wrote above I ordered a AMD RX480 card.

Have just installed it and get quite stunning results:

Preview: GTX970 17-19Fps RX480 50++ Fps

MC mpg2 render GTX970 0:50 RX480 0:24

and see similar improvement in 2 other projects with different media and settings.

The most interesting thing is that the GPU utilization of my 6 core i7-4930 went from 20-25% with the GTX970 to 100% (!!) with the RX480 when rendering.

The most interesting thing is that the GPU utilization of my 6 core i7-4930 went from 20-25% with the GTX970 to 100% (!!) with the RX480 when rendering.

i'm presuming that all your relative settings remained the same in vegas? i'm looking at a rx480 to replace my 970, mainly for resolve, but your results open up a whole new horizon ;-)

btw. presume you uninstalled all nvidia drivers? and which amd drivers did you install?

i've held off for so long cause my last experience with amd catalyst drivers (quite a few years ago now) was akin to what appears to be happening with nvidia drivers now ;-(

Yes: As an old MSc it goes without saying that all other parameters are kept unchanged.

No: I just switched the two cards from/to the very same slot on the MoBo - attached the very same two monitors - fired up the machine, installed the drivers from the included DVD - rebooted - and let it update the drivers from the Internet automatically. After a second reboot I eagerly made the tests.

Today I'm going to download the newest Nvidia Driver Uninstaller and let it remove all traces of Nvidia from the machine.

I'm not saying that Nvidia is a bad product - just that this simple change to the RX480 has made veritable wonders concerning Vegas on my machine - and I know that my grandson swears to Nvidia for his computer games... which also means that the GTX970 will have a reasonable resale value.

thanks for that. looks like i'm going to get one.

btw.

Today I'm going to download the newest Nvidia Driver Uninstaller and let it remove all traces of Nvidia from the machine.

does that mean you didn't uninstall the nvidia drivers before installing card, or that you simply did a windows uninstall?

Precisely: No uninstall. Just powered down the machine, changed the cards and booted and installed the RX480 drivers from the DVD....

Edit: Strange - it seems that uninstalling the Nvidia drivers has disabled that Vegas can "see" and use the RX480 card ?? will be back after a re-install 😟

Edit2: Reinstalled the RX480 driver and now Vegas can "see" the RX480 and everything works fast again.

Edit 3: The new RX480 driver has made Vegas so unstable that I can do some 10-20 changes on the TL between each Vegas stopped working. Just crashed 3 times within 10 minutes.

Too bad. I had really hoped that buying a RX480 would bring me something - ah - other than crashes.

Roll back driver. I also have issues with the latest AMD driver and my Fury-X.

I have an Nvidia GeForce560 with 344.65 drivers. I've had a lot of problems with multi cam editing and crashing using V14. In the process of trying to troubleshoot I've installed and uninstalled driver updates that made a total mess of my video preview. With this current combo I can now more or less edit in V14 but now my V12 will no longer work with GPU on! I get a completely scrambled preview window with V12..which goes back to normal if I turn GPU off. Meanwhile, the preview window in V14 is now working with GPU on.....why?
I uninstalled V12 three times now, reinstalling various versions hoping to get a functional V12 again...but no change. It used to work just fine with GPU on...but no more.
Any idea what I could try to make the preview work in V12 with GPU on?
 

@OldSmoke: Thank you. Since I just installed the Gr.card I have only the newest and the one before that - which version would you recommend, please?

That said, I have changed the Dynamic RAM Preview to 0 - and the last couple of hours I have not had a crash. Interesting.

I also experienced similar crashes with the Nvidia card and drivers...

It was always so easy to say "The Vegas crashes are probably caused from your graphics driver" - but here is a proof that such crashes can appear even if one has changed from Nvidia to AMD - and thereby has uninstalled the Nvidia drivers totally (not only by normal uninstall, but by the program from the net available for total removement... This Preview RAM-thing has been mentioned for years btw...