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Video card for a 450w PSU

post #1 of 16
Thread Starter 
Trying to upgrade my bros PC, and I competely forgot how much power you need on psu to run video cards anymore. He has a corsair 450w PSU, don't know the exact model. Just wondering what type of video cards I can run on that thing?

Also running a 720 x3 phenom with 2 HDD. 1 CD rom.
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post #2 of 16
5770/6870 shouldn't be bad.

My GF has a Q8400 w/ 4 sticks of RAM and a 5770 on a generic 400w delta.
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Waiting on X399
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post #3 of 16
Thread Starter 
is a 5770 sufficient to play bf3? his res is 1440x900 on a 19" screen.
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post #4 of 16
A 5850 would work too.
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post #5 of 16
Quote:
Originally Posted by doc2142 View Post
is a 5770 sufficient to play bf3? his res is 1440x900 on a 19" screen.
that res should be fine with that card might be able to get some aa up like x2 or x4 if ur lucky
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post #6 of 16
Quote:
Originally Posted by doc2142 View Post
is a 5770 sufficient to play bf3? his res is 1440x900 on a 19" screen.
To play yes, but how high does he want to go.

But a 5770 is a good match for a stock machine with 3 cores.
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post #7 of 16
You could run a 460 or a 560 as well.

Add it up over here:

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post #8 of 16
You can definitely go bigger. The important thing is the power on the 12v rail, which on a 450VX is 33A.

This is plenty to run a 6870 or GTX 460. Though I think youre best off with graphics cards that require only one 6-pin PCI-E power connector, as that is all that PSU has.
post #9 of 16
I also have a Corsair 450w PSU, the HX450, it's now in my Media Center, with the card that also used to be in my main rig, a GTX460 1GB. In terms of TDP, that's as far as I'd go for precaution, considering the rest of the system and a bit of overclocking headroom.

The GTX460 1GB has a 160w TDP; you can get better performance from a Radeon HD6870, which has a 151w TDP. At the monitor resolution he's going to be playing, a Radeon HD6870 should be more than enough for almost anything.

If you want to go with Nvidia, there is also the GTX560, which has a 180w TDP, it should do fine, but I don't know if that is not pushing it too much if you consider overclocking the CPU and / or GPU. Either way, a GTX560 for a 19' screen with that resolution is overkill at the moment. A GTX460 1GB will do fine too.
Edited by tpi2007 - 5/31/11 at 7:38pm
 
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post #10 of 16
HD 6850!

It only needs one 6-pin connector and it's very powerful for the price.

It should be able to run Battlefield 3 at medium settings at least.
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