Upgrading graphics card

hapkido

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Oct 14, 2011
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It should work fine. Your PSU is 350W and Dell usually doesn't use terrible PSUs, but you may want to check the amps available on the 12V rail. A decent 350W PSU should have at least 25A on the 12V rail(s) which is enough to drive a 95W CPU and a fairly powerful GPU.

However, gt640 is only 5670/6670 ddr5 territory at best. I mean you're looking at BARELY playable in BF3. I'd step up to a 7750 -- the lowest entry-level card I'd recommend-- which is going to be nearly two times as fast. I don't know your budget, but there are three cards on newegg for less than $100 after shipping and before rebates.
 

swilczak

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The GT 640 and the 7750 are pretty much the same performance wise. On videocardbenchmark.net the 640 scores around 1300 and the 7750 scores around 1500.
 

swilczak

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This comparison shows the ddr3 640 vs the Gddr5 7750. There is a 1gb model of the 640 with gddr5 which is probably more comparable to the 7750. I found it on ebay, but can't seem to find it anywhere else http://www.ebay.com/itm/NVIDIA-GeForce-GT-640-OEM-1GB-GDDR5-DVI-HDMI-DP-Video-Card-/121064905975?pt=PCC_Video_TV_Cards&hash=item1c3007dcf7
 
I never knew of that card nice find ;)
 

CMac019

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Dec 16, 2012
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A 7770 requires a 6 pin power connector. The 7750 is the best card that doesn't need external power