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hybrid crossfire with a10: radeon hd 6670 2gig ddr3 or 6670 1gig ddr5?

Last response: in Graphics & Displays
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April 26, 2013 8:29:34 PM

Im getting ready to buy a gpu to crossfire with my A-10 (radeon hd 7660d)

My question is, Is there any significant gains with the hybrid crossfire if i go with the ddr5 card or is the memory size more important?

Now remember the actual core speed of both cards is the same. the only differance is the memory speed and of coarse the price...(25-30$ differance)

April 26, 2013 8:40:51 PM

i forgot to add that going with a higher end card isnt really an option at this point, the A-10 can only crossfire with 6670. and a 300 $ card is out of the budget for now. so this is my only option.



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April 26, 2013 8:48:04 PM

rmm03 said:
Im getting ready to buy a gpu to crossfire with my A-10 (radeon hd 7660d)

My question is, Is there any significant gains with the hybrid crossfire if i go with the ddr5 card or is the memory size more important?

Now remember the actual core speed of both cards is the same. the only differance is the memory speed and of coarse the price...(25-30$ differance)



There is a lot of info back and forth on the subject but to my knowledge not 100%


Yes and no in hybrid crossfire the ddr5 memory will be treated just like the ddr3 in your system , so in that case no go with the ddr3 card, however if you run the gddr5 6670 in standalone you will get almost identical performance. and better with dx9 games. To really take advantage of dual graphics you need fast memory I run 2133 on my 3870k and build with no less than 8gigs ddr3 1866 1.5v cas 9 ram

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April 26, 2013 10:51:53 PM

I would go for the ddr5, some games wont take advantage of dual graphics, DX9 in particular. In that case it will use the faster video card, if you have your monitor plug into the discrete video card it will use it, I know some motherboards ask you to plug the monitor on the onboard video when doing dual graphics, but you can always plug it to the discrete one and see if it works. If it works it will use ddr5 not 3. Plus what's the difference in price for the ddr5 vs ddr3? if its not much ddr5 is much better.
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April 27, 2013 7:45:37 AM

Q4: Where do I plug my monitor in to get the best performance when using AMD Radeon™ Dual Graphics technology?

A4: For best performance, AMD recommends plugging the display into your discrete graphics card. This will ensure that even applications that do not take advantage of AMD Radeon™ Dual Graphics will still be able to run on the faster graphics card in your system. However, to be more accurate, we recommend that you plug your monitor into the AMD Radeon™ graphics with the higher model number. If that is your APU, plug into the motherboard, if it is your discrete graphics card, plug into that.
http://www.amd.com/uk/products/technologies/dual-graphi...


Edit in order to run dual graphics you must set the bios to onboard video.
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April 28, 2013 6:25:28 AM

thanks for the answer guys ill post my benchmarks before and after
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