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AMD A8 APU running GTX970?

Evil-I

Evil-I

Evil-I

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Joined
20 Apr 2003
Posts
1,316
Location
Gloucestershire
Hi All,

Odd question I know, but we have 12 A8 powered PCs we built especially for exhibition use (small, cool running etc but meaty enough for most things we use them for) and are now considering upgrading to dedicated GTX970 graphics cards to run Occulus Rift on these boxes.

Current spec is:
Silverstone Sugo case/ PSU (SG05)
Gigabyte GA-A75N-USB3 Mboard
AMD A8 3870 APU (3Ghz)
8 Gb RAM
60Gb SSD

So basically all we are trying to achieve is pretty good 1080p gaming performance to be able to run the rift.

Would this work or is the CPU too limiting?

Thanks for any advice,

E-I
 
Okay... might already be running into issues here.

PSU in these boxes is FSP Group Inc FSP300 (standard compact PSU from Silverstone Sugo SG5) with maxmum sustained load of 300watts yet even the GTX960 suggests it requires a minimum 350watt PSU.

I did run a couple of PSU calculators, and as there's literally nothing else in these boxes other than CPU, RAM and SSD I'm getting figures suggesting about 256watts as power consumption (inc GTX970).

Also there's only 1 x 6 pin PCI-E cable on the PSU, so GTX970 definitely out, just depends whther GTX 960 will be okay?

E-I
 
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A good quality 300W power supply would run it no problem.

I've ran an overclocked hex core 95w cpu (PII x6) and an R9 270 (also overclocked) on a Superflower Amazon 300W.

I don't know how decent those PSUs are though.

I'd turn off the igp of the APU in the bios and anything else you don't need.
 
How is rift on the CPU? I've used one, but I've never really checked performance, but as far as cpu and gpu match goes, it's a pretty poor one, but as far as your specific case goes, I couldn't tell you. I can't imagine many people trying it. I'd suggest you try it with one system with a 970 and see how you get on. I'd be pessimistic in your shoes though.
 
The PSU should be able to take it - I've had some pretty beefy hardware working in an SG05 in the past - but just watch out for card lengths. If I remember correctly you have something like nine inches of space.
 
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