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AMD A10-7850K dual graphics question - Page 2

post #11 of 59
Quote:
Originally Posted by PontiacGTX View Post

it has to be with GCN 1.0 because the IGP is GCN 1.0,hawaii is GCN 2.0,plus a stock clocked a10 7850k would bottleneck a r9 290 by 20%+ at low res and 15-10% at 1080p

Yeah i'm not quoting for truth, just as info to read.
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post #12 of 59
Well duh that isn't even GCN yet that is just something between VLIW4 and VLIW5 no wonder it goes together like garbage.

Kaveri should have all kinds of things to make it work good perhaps even some XDMA engine making it as flawless as a single card (almost)
post #13 of 59
Thread Starter 
Hmm, I wonder how the R7 260X will perform when coupled with the APU considering that the 260X is on par with the Radeon 7850 on its own by a few frames.
post #14 of 59
Basically a r7 260x is a hd 7790 with 2gb vram.we dont know how good is the performance we have to wait for benchmarks
  
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post #15 of 59
No,the R7 is about as good as the 7850.Only 10 frames behind at most and that can be changed with some OC or buying an OC card.Look here:http://www.anandtech.com/bench/product/1044?vs=1076
    
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post #16 of 59
Quote:
Originally Posted by Jaydev16 View Post

No,the R7 is about as good as the 7850.Only 10 frames behind at most and that can be changed with some OC or buying an OC card.Look here:http://www.anandtech.com/bench/product/1044?vs=1076

sounds about right. as a genera rule, with AMDs you can overclock a lower level card near the territory of the base clock of the next one up. The 7790 has consistently rated amongst top bang/buck cards for as long as it's been out. Whether it can actually do something with that second gig of memory is another question. Remember though that amd iGPUS use the MoBo memory. That means the 7850 is stuck with ddr3. And the big difference between the 7790 and the 7750 is the ddr5 AMD apus are just begging for ddr4
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post #17 of 59
New 14.1 driver is poised among other things to support frame pacing for Dual Graphics ,probably only for Kaveri though (else they would have implemented it already). As for DG cards supported, we aren't quite sure yet- AMD slides on dirt showdown are hinting kaveri igpu will be a wild card of some sort (since when combined with R9 270X it beats i5-4670k/R9 270X combo in that game).-not to mention that under mantle crossfire in general might work in a total different way. Just wait a few days and all questions will be answered.
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post #18 of 59
You sound like that's easy to do!biggrin.gif
    
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post #19 of 59
Quote:
Originally Posted by Jaydev16 View Post

No,the R7 is about as good as the 7850.Only 10 frames behind at most and that can be changed with some OC or buying an OC card.Look here:http://www.anandtech.com/bench/product/1044?vs=1076

http://www.anandtech.com/bench/product/1044?vs=1035
R7 260x vs HD 7790


the 260X has 100mhz more in core and 125mhz on mem.... that the difference in performance.

ITS A 7790 with 2gb
  
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post #20 of 59
are there any weaker cards than 260x that have 2GB memory?

also is it possible for kaveri iGPU to use GDDR5 from dGPU`? biggrin.gif
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