New Diagnostic Tools Available For DirectX 12 Developers

[blppt]

"Heck, these companies WANT you to buy multiple graphics cards so it's definitely not in their interests to kill off multi-GPU."

I would agree mostly, but there is a limit to this---you dont want to make the experience so good with SLI/CF that it cannibalizes the markups you get on the premier cards, like Titan Xp. If SLI worked just as well as a single card (in an ideal world) why would anybody buy a single TitanXp when a dual 1070 setup would beat it in games? (again, ideal situation). Sure, Nvidia would be moving more product, but at considerably less profit than they likely get for a single $1200 Titan Xp.

 

[mitch074]

I would agree mostly, but there is a limit to this---you dont want to make the experience so good with SLI/CF that it cannibalizes the markups you get on the premier cards, like Titan Xp. If SLI worked just as well as a single card (in an ideal world) why would anybody buy a single TitanXp when a dual 1070 setup would beat it in games? (again, ideal situation). Sure, Nvidia would be moving more product, but at considerably less profit than they likely get for a single $1200 Titan Xp.

That's part of my point (and the reason why Nvidia doesn't support SLI on 1060 and lower) and also because, if you could buy, say, a 1060 and a RX580, you'd get:

• 
  ■ performance close to a 1080 for a similar price
  ■ CUDA, PhysX support at that performance level
  ■ competing technologies (OpenCL, HSA) would be supported too

So, allowing this kind of setup would allow consumers to get a mid-range Nvidia card, a mid-range AMD card and all features supported; blocking it forces people to buy a high-range Nvidia GPU and stay stuck to Nvidia's ecosystem.

 

[blppt]

I'd love to see mgpu, mixed vendor, but lets be real, its a rare thing--currently--when they get true DX12/Vulkan mgpu working with a single vendor/model of mgpu setups. Which tells me that it is not a trivial thing to get true mgpu working under either new API, which is unfortunate. Making sure it plays well with multiple vendor GPUs in mgpu mode seems like a pipe dream for even the most well-funded game developers.