What GPU can my motherboard handle?

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Crystal Poison

Crystal Poison

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Feb 21, 2014
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Processor: AMD Phenom II x4 925
Mobo: ASUSTeK M4A79XTD EVO
RAM: 4 GB DDR3
GPU: Radeon HD 5770
64-bit Operating System

I am currently overclocking my computer via AMD Control Center, but it doesn't seem to be enough to make certain games smooth. I would overclock it more but I am concerned for the life of my PC and would rather put some money towards the best GPU my PC can handle. Money isn't a big concern, I just want the best GPU my computer can take, without dying. Any tips/advise would be greatly appreciated.
 
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Nikola Aslanov-1338074

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Jun 11, 2013
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Read this: http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-3.html
Plan according the available money and PSU power.
I've seen benchmarks of Phenom II x4 925 with 780TI (http://www.3dmark.com/fs/1496327) but this is a bit unbalanced.
I'd say that 760 (or 770) is the maximum that will not be bottle-necked by the CPU.
Better remove OC on GPU install, for initial stability, you can try OC again later.
 
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Wisecracker

Wisecracker

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Jan 15, 2007
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Your best OC is dependent upon your RAMs speed -- this determines your 'sweet spot' in the system clock:

DDR3 1333: 250Mhz
DDR3 1600: 240MHz

By raising the system clock and dropping your memory divider one notch, your RAMs will return to spec speed with a 20-25% boost in your CPU speed (at first, drop your CPU multiplier down to 12x and sneak up on the higher CPU clock speeds as you test your temps and voltages)

Adjust your HT Link multiplier to keep your HT Link speed around 2000MHz. You may take your IMC/NB speed as high as temps/volts allow. For each 10% you increase your IMC/NB speed, memory bandwidth increases 5-6%, and latency is reduced 5-6%. This can provide quite a boost to your gaming.

- lock your PCIe to 100MHz
- disable spread spectrum

The lower you keep your CPU volts, the lower your temps! You may adjust your VCore in 0.0125v +/- increments. Snag some good aftermarket cooling -- CM Hyper 212+ or good water is not out of the question.

With the 8+2 Phase power design of your motherboard, the sky is the limit, and your PhII 925 with push any modern video card (and, your CPU will also move to a new AM3+ motherboard when you are ready!).



 
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