Originally Posted by TheRic89
There's an update to that article you posted and it says AMD will have new GPU products in 2013. There's also Jim Keller stating in an interview that their new GPUs are on track for this year.
Maybe I missed something, but I thought the "update" you mention had to do with the 7990 release. If you have info from AMD concerning the 8970 or even 8950, please provide links. I'd like to read that.
As for the GPU compute discussion - there's no doubt that NVida nerfed the GTX600 series in that regard. Fermi actually improved DP (FP64) rate in the top end cards compared to prior GPU gen. The GTX 480 and GTX 580 DP rate
was 1/8 of SP (FP32) compared to 1/12 of SP for the GTX285. The GK104 (GTX680) and Titan (default settings)
DP rate is set to 1/24th of SP. As we all know, a Titan can be set to DP = 1/3 SP via a driver setting, but that clocks down the card. I think the fact that the GTX780 lacks that same ability (enable DP = 1/3 SP via drivers) despite using the same GK110 GPU is pretty indicative of Nvidia's strategy. JMO, but with the success of the GTX600 series (Nvidia sold a lot of cards) and willingness for people to spend $1000 for a Titan (which has already outsold the GTX690
), I expect the same GPU compute limitations placed on GeForce Maxwell cards. At best, there will be a Maxwell based Titan (along with a titan level price). I hope I'm wrong about this, but I really think that will be the case.
The problem is exactly as Alatar states. A 7970 may blow away a GTX680 or even a GTX770/780 on GPU compute benchmarks (especially Open GL applications), but that doesn't mean much if your software is CUDA only. Nvida was smart about working hard early on to promote CUDA as the GPU compute platform of choice. Fortunately, from what I've seen, Open GL compute support is starting to increase. Adobe recently announced much better AMD support for the Creative Suite Cloud platform (not sure that also includes 3d Ray Tracing). Still, that doesn't help those who bought CS4/CS5/CS6 or other software designed for use w/ Nvidia cards. On top of that, there's a lot of plug-ins which are CUDA only. So even if your software works fine, if important plug-ins don't it won't mean much. Ideally, we will see continued migration towards equal Open GL support, so that in the end, both AMD and Nvidia cards are fully compatible for GPU compute/acceleration regardless of the software.
FWIW, I'd much rather get a 8970 than GTX780 for the same price, but there's a limit to which I'm willing to wait before upgrading - especially on rumor alone. If anyone has something official from AMD regarding 2013 launch of the 8970/8950, particularly regarding a Q3 release, please post a link.