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WTF is wrong with multi-GPU support in games these days?!

By: Anthony Garreffa | Editorials in Gaming | Posted: Apr 5, 2016 12:16 am

DisplayPort 1.4 - I'm Looking at You


One of the things I'm super pumped for this year is DisplayPort 1.4, which will allow for monitors to scale to heights that are simply impossible today - and I mean completely, technologically impossible. HDMI 2.0 and DP1.3 have hit their ceilings at 4K60, but we all want what Agent Smith yearned for in The Matrix Reloaded - more, more, more.




DP1.4 has 32.4GB/sec, and will see monitors scaling right up to 8K (7680x4320) at 60Hz, 4K at 240Hz (!!!), and even 1440p and 1080p at an insane 240Hz. Even 3440x1440 gets some DP1.4 love, with support for up to 190Hz - I know which monitor I'm waiting for this year.



But this begs the question - what the hell is going to drive 4K @ 120FPS? Right now, no single GPU solution will do it. The next-gen video cards, no matter how fast they are - simply won't be powerful enough to handle 4K @ 120FPS consistently, without heavily modifying the in-game settings.



Virtual Reality Could Be The Solution


In all reality, pun not intended, VR could be the saving grace of multi-GPU technology. Thanks to virtual reality rendering two images at once - one image per eye, multi-GPU solutions could not just benefit, but they could significantly increase performance. And by considerably, I mean close to 100% scaling with two GPUs - something we don't see much outside of synthetic benchmarks like 3DMark and Heaven.




If NVIDIA and AMD play their cards right - and they both seem to be holding pocket aces right now - VR could be the solution to my entire rage on multi-GPU performance. It gives a reason to own a second video card and receive a huge performance benefit.


It would make perfect sense for NVIDIA and AMD to do this, as VR game development is tied directly to the PC and doesn't need to worry about a huge potato box holding it back. The more power that the gaming PC in question has, the better performance, presence and experience you're going to have in your Oculus Rift or HTC Vive.

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