(04-19-2012, 08:40 AM)miseryguts Wrote: Thanks for the reply,
I'm not upgrading the GPU specifically for Dolphin, I was just wondering if there were any potential performance gains to be had with the 680 & after reading the thread you linked & listening to a few others it appears not.. so if I'm understanding things correctly the performance 'cap' (if that's the right way of putting it) is as much to do with the limitations of Dolphin or how it works, as it is what you have inside your system..? (obviously above a certain CPU/GPU level) feel free to correct me if I'm wrong about that.
Well if you're getting the 680 for things other than Dolphin, I really can't say if it's worth your money
I wouldn't call it a "cap" per se, it's more that once the GPU satisfies the demands needed in GC/Wii emulation (IR, AA, AF, other things too??) then there's not much it can contribute to Dolphin's performance. I'm not sure OpenCL for texture decoding helps on a lot of systems though. Once your GPU is good enough (e.g. no longer the bottleneck), it really can't do anything more for Dolphin emulation. At least that's how I've understood it all this time.
For further clarification, I think you should read neobrain's blog to get an idea of how Dolphin goes about emulating the GC/Wii GPU and how it works out on your own GPU. It's a good read imo, though I don't know why he doesn't post more stuff on his blog. Neobrain, if you read this, make more! Anyway, here's the link.