Most powerful GPU setup on 620W psu?

[irkjab]

Hi, I'm currently in the process of upgrading my system before I move to Europe.

Since components cost a bunch more over there, I want to upgrade my system as far as I can now.

What is the fastest setup my corsair 620hx power supply can run?

I can run crossfire at 16x and 8x on my motherboard, but not SLI.

Many thanks

 

[gkay09]

Well that could power a 4870X2, GTX 295 -> which implies it could even run a 4870 Crossfire and GTX 260 SLI...

 

[irkjab]

Nvidia's website says a minimum of 680W psu for the GTX 295. I know that this recommendation is padded a bit and that the corsair is rated under what it can actually provide, but is this pushing it a little?

 

[gkay09]

The 620HX are underrated...
They have about 50A on the 3 12V Rails combined, which gives out about 600W of power so they are very powerful...

 

[gkay09]

Nvidia's website says a minimum of 680W psu for the GTX 295. I know that this recommendation is padded a bit and that the corsair is rated under what it can actually provide, but is this pushing it a little?

Well they just overrate the power requirements...
Check out this...
http://www.antec.outervision.com/PSUEngine
Fill in your config with a 295/4870X2...it gives only about 580W of total power required...

 

[wh3resmycar]

why use antec's when corsair has their very own psufinder.

http://www.corsairmemory.com/psufinder/

 

[RazberyBandit]

The better version of Antec's PSU Calc is the original, from OuterVision eXtreme.

http://extreme.outervision.com/psucalculatorlite.jsp No popups, either.

 

[irkjab]

Thats good to know! Looks like my psu will handle everything even when overclocked

Would a GTX 285, GTX 295, or a Radeon 4870x2 be the best value for a 22" LCD? I look forward to playing crysis on very high with AA in any case

 

[gkay09]

Well as you have a crossfire mobo I would suggest you get a 4890 for now and later one more in crossfire...that would be a better value than any of the above...
And a single 4890 is suffice for the 22" (BUT NOT FOR CRYSIS though you can set some details high to very high)

 

[irkjab]

Thanks for the advice. I'd rather get something that will last me as long as possible without an upgrade though, since GPUs tend to cost at least 50% more in Finland than in the US. Even more if they're new.

 

[wh3resmycar]

Would a GTX 285, GTX 295, or a Radeon 4870x2 be the best value for a 22" LCD?

note:

22" lcd panels come in 2 varieties, 16:10 @ 1680x1050, and 16:9 1920x1080.

i suggest you get the latter.

 

[RazberyBandit]

Crysis can become just as dependent upon the CPU as it can on the GPU. It all depends on the eye-candy enabled which of the two becomes the choke point. Sometimes I think it's completely the wrong game to base purchases on.

 

[irkjab]

I agree, and this is part of the reason I have overclocked my processor (and will overclock further in the future). But I do want to be able to play next generation pc games comfortably at their highest settings without needing to think of gpu upgrades.

 

[photonboy]

I recommend you get a single NVidia GTX 275.

Based on your components (especially CPU and PSU) you would have a balanced system which would not need, nor benefit from future upgrades.

Ensure your PSU has the appropriate connectors ( is it 2x6-pin??).

I believe most PSU's have a switch for choosing between NA and European power. Make sure you've switched to the appropriate setting before plugging in overseas or you may have issues. Poof!

 

[radiowars]

+1 for GTX 275. It matches the 4890 OC so, if you OC the GTX 275, it will outperform it @ most settings- especially since you have a 22'' Monitor. THe 4890 scales better on larger resolutions, but underperforms on smaller monitors.
Either way, you'll be happy with any of those cards.

 

[irkjab]

The psu has 2x PCI-E connectors and auto switches input voltage, so i'll be good.

 

[jet757f]

Im using the Corsair 620 with a Gigabyte X58/i7 920/4870 X2 and 2 hard drives and havent had any problems.

 

[irkjab]

Does the 285 offer enough of a performance boost to justify its price over the 275 and 4890?

 

[photonboy]

Very unlikely.

Keep in mind reviews done comparing these card are done on the lates CPU's such as an i7 940. There's a specific cutoff (which varies by game) at which a better GPU can't provide any performance benefit.

I'm betting you'd be hard pressed to find much benefit out of anything more than a GTX 275 and definitely not worth the price difference.