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

[ethomaz]

drkohler said:

ethomaz said:

... the CPU have only 20 GB/s access to the RAM...

where does that number come from?

GDC.

"While the GPU has full access to 176GB/s, one source tells us that the CPU is more constrained at around 20GB/s - still pretty good at around two-thirds the level of bandwidth available to Intel's Ivy Bridge."

http://www.eurogamer.net/articles/digitalfoundry-inside-playstation-4

In any case no CPU have this high access to RAM even in PC... 20GB/s is twice the bandwidth used in the TOP Intel CPU in the market.