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Card Upgrade n PSU confusion

Last response: in Graphics & Displays
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November 12, 2010 1:21:02 PM

I am currently running a 8600gt. Need to upgrade as am unable to play most new games. Since I have a 400w PSU (Coolermaster 390 http://www.coolermaster.com/product.php?product_id=3746) was considering getting the GTS450. The card has a minimum 400w PSU requirement which my system meets.

Checking with a power supply calculator (http://www.extreme.outervision.com/PSUEngine) the recommended power supply for my configuration with a GTS450 turns out to be 424w.

And using a 5770 instead of the GTS450 results in a recommended power supply unit of just 358w. And AMD is recommending 450w as a minimum PSU.

Not sure what to do?

Should I get the GTS450 as it seems safe by Nvidias requirements, or should I give the 5770 a shot?

I am leaning towards a the 5770 as its a bit more powerful.

I can get either for about 110 at newegg? which one do i pick. . . . or is neither recommended?

Sys specs
AMD Athlon II X2, 2GB ram, 500Gb hdd. CM390w.
a b U Graphics card
November 12, 2010 1:25:12 PM

Forgive me for saying this, but i don't think upgrading your graphics card will do much looking at your existing system.

You have a dual core Athlon and only 2GB of RAM, no wonder new games aren't playing ball with your system.

But back to your original question, the 5770 is marginally more powerful than the 450 so if you can get it for cheaper/the same price then go for that. The 5770 is a lovely card, so its a safe bet.

But i would strongly advise looking into investing in some upgrades elsewhere in the system or perhaps a new system.
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a b U Graphics card
a b ) Power supply
November 12, 2010 1:41:24 PM

If you opt to upgrade your PSU to 450W then you would have host of cards to choose from. Plus the CM390W doesn't even deliver the full load.

http://www.anandtech.com/show/2697/39

Plus its passive PFC, crappy PSU from CM.

I agree with Griffolion, that you a lot of other upgrade to play games well. Also which monitor do you have?
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November 12, 2010 3:15:43 PM

am not really considering any additional upgrades other than a 2GB Ram addition. My pc is hooked to a panasonic 32" with a max res of 1366x768.

the GTS450 with nvids 400w recommendation wont work???

in that case will a 5670 suffice for my res? or if i have to step down from the 5770 will the 5750 work?
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a b U Graphics card
a b ) Power supply
November 12, 2010 3:48:23 PM

For gaming no. For HTPC, yes. Gaming would put your PC in a lot of load and with the PSU that you have its not recommended.
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