Anybody think 8 gb of GDDR5 is a mistake for PS4

[fordy]

drkohler said:

fordy said:

So why not have the best of both worlds and remove the latency overhead when moving to cache?

There's a reason WHY we aren't using GDDR5 as CPU memory in PC architecture. Use your head.

Let me guess: you did not understand what I wrote and you don't understand why there is memory latency anytime, anywhere. The three key reasons why we never had gddr5 as main memory in the pc world are (by order of importance): price, price and price.

Let me guess: You have some odd belief that buffering/caching comes at absolutely NO cost for a punish/miss routine, and that there's not such thing as latency. Once again, GDDR5 is to handle LARGE chunks of data, not the small blocks of an instruction cache.

If you think price is any factor for not using GDDR5 as ssytem memory, then you're completely delusional. For starters, there has always been a transition period between current and new RAM tech, where the new has alwyas been tremendously more expensive. Price does NOT stop a market transition, especially to enthusaists. Secondly, given the vast amounts of GDDR5 on relatively cheap video cards nowadays, your theory of price should have been enacted long ago. So why wasn't it? BECAUSE GDDR5 IS NOT OPTIMALLY FEASIBLE FOR SYSTEM RAM. End of story.