PS4 'isn't quite as powerful as Epic was hoping for,' Digital Foundry reports

[ethomaz]

DieAppleDie said:
Im the only one that thinks GDDR5 and lack of eRam is gonna bite Sony in the ass?
Of course PS4 is going to be the most powerful system this upcoming gen, no doubt about it.

Well the eDRAM or eSRAM have a purpose... try to avoid the bottleneck caused by the low bandwidth communication between GPU and RAM... Wii U needs that, the Nextbox seems to need that but PS4 with 176GB/s bandwidth between GPU and RAM? No... for PS4 32MB eSRAM or eDRAM can make the things worse than access directly the RAM.

That is the technical explanation... the GPUs on PC didn't use eDRAM/eSRAM too because they have 150, 200, 300 or 400GB/s bandwidth.