drkohler said:
That is something most people misunderstand. The esram may only be a small fraction of the total ram, but if the gpu can do 99% of the work it has to do in esram, then you are obviously ok. How much edram/esram you need has been tested endlessly by whoever makes chips . It seems that 32MB is some kind of "sweet spot" if you look at <=1080p images. Ms has built a very complex infracstructure around the esram bottleneck to ensure they get as close as possible to 100% efficiency. |
Trust me. I am a BSEE. I understand this stuff isn't always black and white.
This anandtech article says it pretty well. I think at the end of the day, GDDR5 is the better choice for a gaming centric console, hands down. Microsoft is most certainly aiming for a media hub, and there could be some advantages to DDR3 there. But from a games perspective, its hard to argue against GDDR5 being better, especially AT 1080P
http://www.anandtech.com/show/6972/xbox-one-hardware-compared-to-playstation-4/3
Also, 32MB was probably more of a "cheap" spot too in terms of cost.
