Oculus Rift requirements GTX 780 vs GTX 970

[Jase]

There is a way to make them about equal but you won't like it. I ran my reference design GTX 780 through 3dMark at factory settings and compared it to the results from the Oculus Rift recommended specs rig that uses a GTX 970. I then overclocked my GTX 780 as high as I possibly could. The results are that I was able to make my card equivalent to a GTX 970 and it was 2-hour stable in Unigine Heaven 4.0 on extreme setting before I was satisfied it was perfectly stable and stopped it. The card maxed out temps at 72C and stayed there. I would have overclocked higher but I couldn't get it to be stable although for what it is worth I was able to make one pass on 3dMark at a +190 that did outperform the GTX 970. I couldn't even get it to successfully make it through another run never mind run it through Unigine Heaven. I am posting screenshots of the results and settings below (hopefully they are visible first try).

http://steamcommunity.com/sharedfiles/filedetails/?id=649914827
http://steamcommunity.com/sharedfiles/filedetails/?id=649914022
http://steamcommunity.com/sharedfiles/filedetails/?id=649911325
http://steamcommunity.com/sharedfiles/filedetails/?id=649912255

[Alexalmighty502 Sup Acc]

whats the point of this now? and the gtx 970 is the bare minumum

[Jase]

The point is there are a lot of people asking about whether their GTX 780/780 ti is sufficient on line. On the oculus forums, on reddit, etc. The ti does qualify the non-ti does not. I was providing data for people that like to push their hardware.

Edit for grammar.

[Jase]

Correction: The GTX 780 does qualify, just barely and with a very large overclock.

[Alexalmighty502 Sup Acc]

it lacks the needed vram plus the gtx 970 isn't really enough for vr anyway

[Jase]

That's debatable. The GTX 780 has 3GB and the GTX 970 technically has 4GB total, but it is broken up into 3.5GB + 0.5GB. That could affect it potentially, though I'm just speculating. Regardless, that is the point of running 3dMark. It meets the necessary performance requirements as shown in the 3dMark results: therefore it is equivalent based on the information available at the moment.

[Bad 💀 Motha]

780 6GB sure; but 3GB? I have doubts.

But 780 3GB or 6GB; either can maintain above the 90 FPS minimums without issues; Steam VR and others simply say 970 cause that is newer; they not going to talk about older stuff at this point. Cause by the time VR is in consumer hands; 970 will already be bare minimum for most games @ 60 FPS 1080p anyways. Can older ones pull it off; sure; but u will never see it officially supported.

[Jase]

Why do you say no way? I showed you how many frames per second each card does. It doesn't really matter how it is achieved. And as far as the specifics of the vram are concerned: The GTX 780 has a 384-bit interface and 288.4 GB/s memory bandwidth compared (http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-780/specifications) compared to the GTX 970's 256-bit interface at 224 GB/s memory bandwidth (http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-970/specifications). The 780's memory is quite a bit faster.

[just.kamk /idle]

Jase님이 먼저 게시:

The point is there are a lot of people asking about whether their GTX 780/780 ti is sufficient on line.

Of course it is, you could also run VR on a 770. It's a matter of graphical fidelity after all.

970 is just the current line, and considered to be around minimum. With upcoming cards the minimum might be set higher again, a 1070, or maybe just a 1060 after all.

Btw.: pretty much all 970s run with way higher clock speeds out of the box, and achieve also way better results.

[Alexalmighty502 Sup Acc]

Jase님이 먼저 게시:

Why do you say no way? I showed you how many frames per second each card does. It doesn't really matter how it is achieved. And as far as the specifics of the vram are concerned: The GTX 780 has a 384-bit interface and 288.4 GB/s memory bandwidth compared (http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-780/specifications) compared to the GTX 970's 256-bit interface at 224 GB/s memory bandwidth (http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-970/specifications). The 780's memory is quite a bit faster.

the gpu itself isn't strong enough hell the 970 isn't either for a decent frame rate and acceptable graphicss you really need at least a 1440p card

[Jase]

I don't think you understand the point of this post. It is for people that enjoy pushing their hardware.

[Alexalmighty502 Sup Acc]

kamk님이 먼저 게시:

Jase님이 먼저 게시:

Btw.: pretty much all 970s run with way higher clock speeds out of the box, and achieve also way better results.

yeah mine is at 1420 at boost lol (and i have 2)

[Alexalmighty502 Sup Acc]

Jase님이 먼저 게시:

I don't think you understand the point of this post. It is for people that enjoy pushing their hardware.

then don't title it Oculus Rift requirements

[Jase]

My current monitor is QHD (2560x1440) and I use 96Hz refresh or 110Hz refresh depending on what I am playing. This is more demanding than the Rifts 2160x1200@90Hz. It is "a 1440p card".

[Bad 💀 Motha]

I've run the Steam VR tests with GPUs such as GTX 780 6GB and 780 Ti 3GB
They are just as capable as any 970 is. They never dipped down below that 90 FPS minimum; not even close. Steam VR just recommended to replace GPU in the end cause it wasn't at least a 970

[Alexalmighty502 Sup Acc]

Jase님이 먼저 게시:

My current monitor is QHD (2560x1440) and I use 96Hz refresh or 110Hz refresh depending on what I am playing. This is more demanding than the Rifts 2160x1200@90Hz. It is "a 1440p card".

the 970 isn't even a 1440p card but keep telling yourself that