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Captain_Tom on 24 June 2013
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HoloDust said:
Captain_Tom said:
HoloDust said:

No, not double. If you look at vanilla GPU specs of PS4, it is slightly above 7850, and XOne is close to 7770. However, XOne GPU appears to be cut down 7790, so it does have some things better than 7770, plus MOVE engines and eSRAM to make up for lower bandwidth, effectively making it faster than 7770. Of course, PS4's GPU also has its own enhacements, so difference in performance will probaly remain the same as vanilla 7850 to 7770...which is around 50%.

1) The ESRAM is to make up for the 60% slower RAM.  Even then it is still not as fast (Theoretically) as GDDR5.  Slightly more cores, much worse RAM, and 20% slower clock (800MHz vs 1000MHz) = 7770 at best, but probably closer to a 7750.

2) The GPU in the PS4 IS stronger than a vannilla 7850 with those enhancements as well.  It should easily catch up to a 7870.

3) A 7850 is already over twice as stong as a 7750, and 50% stonger than the 7770.  Then the 7870 is about twice as strong as a 7770 as seen here:

http://www.techspot.com/review/661-nvidia-geforce-gtx-650-ti-boost-sli/page2.html

 

Anyone with a solid understanding of AMD's current GPU archetecture will tell you the same as I have (And I am an Engineer so this is kind of MY JOB).  But if you don't believe me, maybe some actual developers will convince you:

http://www.gamechup.com/jonathon-blow-some-games-could-be-60fps-on-ps4-and-30fps-on-xbox-one/

Last time I've checked, XOne's GPU was cut down 7790 (so more geometry engines/command processors than 7770) with very similar base memory bandwidth of 7770 (68.2 vs 72 GB/s). So you're telling me that with all the additional enhancements MS put in, it will perform at best as 7770? Sure, whatever makes you tick...

Just to avoid unnecessary back and forth discussion, I think PS4's GPU will perform somewhere in between 7850 and 7870, and XOne's in between 7770 and 7790...so, depending on the game, some 40-60% difference in favor of PS4. You're certainly welcome to your opinion, since, as you put it, it's YOUR JOB.

I like how you just completely ignore my links.  Also "Cut Down 7790", "Suped Up 7770,"  these statements mean nothing.  It is its own card made from similar components on the same archetecture.  Stop talking about how strong it is unless you are actually going to do some of the math and research YOURSELF.  Otherwise you are just putting your head in the sand everytime someone who actually knows what they are tells you REALLITY.