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[vr-zone]First look at new features on Cherry Trail’s GPU

post #1 of 6
Thread Starter 
It is very long article, you can read it from here
http://vr-zone.com/articles/first-look-new-features-cherry-trails-gpu/64068.html





4 times the EU as bay-trail and based on new GPU architecture, Gen8 . Looks like decent improvement over bay-trail at least on paper
Edited by ThePath - 11/17/13 at 8:26am
post #2 of 6
Refreshrate switching and backlight reduction while kicking the gamma up not really something new but yeah it should save a little bit of power.
Intel has the node to put all that extra gpu cores on the die but the question is can they compete against AMD which has the IP to do it all.
AMD will switch to 14nm for their small tablet SoC's and if they use dedicated GDDR5 so there is no bandwidth limit that would blow away Intel by a factor 3 (that is also the reason why a increase in DDR3 clock -> bandwidth gives a major increase in gpu strength.
Edited by maarten12100 - 11/17/13 at 12:44pm
post #3 of 6
Quote:
Originally Posted by maarten12100 View Post

Refreshrate switching and backlight reduction while kicking the gamma up not really something new but yeah it should save a little bit of power.
Intel has the node to put all that extra gpu cores on the die but the question is can they compete against AMD which has the IP to do it all.
AMD will switch to 14nm for their small tablet SoC's and if they use dedicated GDDR5 so the is no bandwidth limit that would blow away Intel by a factor 3 (that is also the reason why a increase in DDR3 clock -> bandwidth gives a major increase in gpu strength.
Why gddr5? DDR4 brings a large bump in bandwidth as well as being lower power and better latency. No point in dragging the already lower cpu performance even lower.
You got a link or something showing the Temesh/Kabini SoC's are bandwidth limited, considering 128 gcn cores get a 64bit mem interface while a 7750 has 512 gcn blocks with a 128bit mem interface? It ends up working out to the same data rate per core/mem clock if the 7750 gets gddr5 (QDR). So I doubt a large increase in bandwidth is going to change much unless the core clocks go up or the count goes up.
post #4 of 6
If the new GPU is capable of handling MadVR... Do want.
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Bruce
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post #5 of 6
Quote:
Originally Posted by maarten12100 View Post

Refreshrate switching and backlight reduction while kicking the gamma up not really something new but yeah it should save a little bit of power.
Intel has the node to put all that extra gpu cores on the die but the question is can they compete against AMD which has the IP to do it all.
AMD will switch to 14nm for their small tablet SoC's and if they use dedicated GDDR5 so the is no bandwidth limit that would blow away Intel by a factor 3 (that is also the reason why a increase in DDR3 clock -> bandwidth gives a major increase in gpu strength.

I never really thought about that. I wonder what AMD has that could limit Intel.

I do know Intel has purchased a few defunct gpu companies way in the past, so I'm sure they have a few patents up their sleeves. When it comes time to sue, I'll be in AMD's corner though after all the illegal and immoral stuff Intel's pulled to cripple AMD.
 
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post #6 of 6
Quote:
Originally Posted by Yeroon View Post

Why gddr5? DDR4 brings a large bump in bandwidth as well as being lower power and better latency. No point in dragging the already lower cpu performance even lower.
You got a link or something showing the Temesh/Kabini SoC's are bandwidth limited, considering 128 gcn cores get a 64bit mem interface while a 7750 has 512 gcn blocks with a 128bit mem interface? It ends up working out to the same data rate per core/mem clock if the 7750 gets gddr5 (QDR). So I doubt a large increase in bandwidth is going to change much unless the core clocks go up or the count goes up.
http://www.corsair.com/en/blog/amds-a10-apu-and-memory-bandwidth/
Yes I know that from a ram manufacturer isn't that legit but the numbers are wink.gif

Temash not so much as it is all BGA already but non tablet Kabini does DDR4 is great for processor logic but as we are focusing on faster graphics rather than more cpu performance gddr5 is a better choice.
If you need really low power there is DDR4L but if you want gpu perf faster less precise low latency ram like gddr5 is a better choice.

Now DDR4 isn't really that in use yet the high end platform I'm getting will be DDR4 ready but because HP and other big server names haven't stepped up yet it wont be until the haswell refresh late 2014/early 2015 before it gets here.
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