Will Radeon 7770/7790 Crossfire with my PC?

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Andro Park

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Aug 4, 2013
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Specs -
Processor - AMD A8-5600K BE
Motherboard - MSI FM2-A55M-E33
RAM - 1x 4GB 1333MHz
HDD - 1TB WD Green 7200 RPM
PSU - 400 W

Wanted to know if a Radeon HD 7770/7790 will crossfire with the APU?
Also thinking of getting more RAM and to update the PSU as the one I have ATM is a cheap one that came with the cabinet.

 
Solution
bccorrupt
Yeah, a power supply is a good investment and lots have 5 year warranties, so you won't need to worry about it again for quite a long time.

Ram can be finicky sometimes. It isn't that big of an issue though. Just try to find the same brand, speed, timings, and voltage. On an APU using it's graphics it's more important, but with a dedicated graphics card the graphics memory is pulled from it so the performance difference is pretty small even if they refuse to work in dual channel. You may not need to bother for a while though. Use a program like MSI afterburner and it'll tell you how much system ram is being used.
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bccorrupt

bccorrupt

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Most of what I've seen is that you can only use dual graphics with an A8-5600K and a 6670 or 6570. There are a couple videos of people claiming to get it to work with a 7750, but I've never seen anything official. No where have I ever seen it done witha 7770 or 7790.
 
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Andro Park

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What about the motherboard? Is it good enough to run a 7770/90? Might just run it individually if it works better than the APU and 7750 crossfired.
 
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bccorrupt

bccorrupt

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Your motherboard will work perfectly fine and you're most likely correct that a 7770 will be faster on it's own than a 7750 in dual graphics would be. If it was me, I would go with a decent new card like a 260x(for the same price as a 7770 or 7790) and then later on upgrade the ram and the CPU to a 760k(best that will fit in your slot).
 
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Andro Park

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What do you mean by a 760k? BTW is my PSU enough for a R7 260x ?
Its this one - MSI AMD/ATI R7 260X 2GD5 OC 2 GB GDDR5 Graphics Card
 
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bccorrupt

bccorrupt

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The A10 processors are available without the graphics built in, in the models 750k and 760k which is the best processor that will fit in your motherboard and they're pretty cheap at like $80 and $90 respectively. Recommended is 500w from AMD. 400w is enough if it's a solid name brand power supply, but generic or an iffy OEM and you might be pushing it.
 
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Andro Park

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Aug 4, 2013
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The PSU is just a cheap one i got with the case. I think I'll have to get a new one, dont want to risk a new card. Also any RAM with 1333Mhz should be able to run fine with the one i have now or does it need to be manufactured by the same company?
 
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bccorrupt

bccorrupt

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Yeah, a power supply is a good investment and lots have 5 year warranties, so you won't need to worry about it again for quite a long time.

Ram can be finicky sometimes. It isn't that big of an issue though. Just try to find the same brand, speed, timings, and voltage. On an APU using it's graphics it's more important, but with a dedicated graphics card the graphics memory is pulled from it so the performance difference is pretty small even if they refuse to work in dual channel. You may not need to bother for a while though. Use a program like MSI afterburner and it'll tell you how much system ram is being used.
 
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Solution
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Andro Park

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Aug 4, 2013
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Okay, thanks for the help! Will be getting some RAM and a good card and PSU.
 
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