Mr. Somebody
Friend Of A Friend
Please tell me what will gddr5 ram do that ddr3 + ESRAM wont?
From a developer.
A fast GDDR5 will be the desired option for developers. All the interesting cases for good anti-aliasing require a large amount of bandwidth and RAM. A tiny 32MB chunk of ESRAM will not fit that need even for forward rendering at 1080p. I think some developers could hit 1080p@60fps with the rumored Orbis specs even with good AA. My personal project is targeting 1080p@60fps with great AA on a 560ti which is a little slower than the rumored Orbis specs. There is no way my engine would hit that target on the rumored 720 specs. Ultimately on Orbis I guess devs target 1080p/30fps (with some motion blur) and leverage the lower latency OS stack and scan out at 60fps (double scan frames) to provide a really great lower-latency experience. Maybe the same title on 720 would render at 720p/30fps, and maybe Microsoft is dedicating a few CPU hardware threads to the GPU driver stack to remove the latency problem (assuming this is a "Windows" OS under the covers).
I think you understand now and its ok. You dont have to be afraid anymore. PS4 will be on the market, friend.