Worth the Risk?

stevydinho

Honorable
Sep 16, 2012
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10,710
My Sapphire HD 7870 GHz Edition for a refund, it's been very problematic and the AMD drivers are awful.

I'm going to be buying an Nvidia card, long story short, the flight sim I play runs a lot less buggy with Nvidia cards.

There's a great deal atm where I can get a GTX 580 for £99, however its 244W TDP would take my overall wattage to about 420W. I'm using a 430W Corsair PSU. Is it worth the risk? I can trust Corsair in saying the PSU really delivers 430W, but it's very tight.

Honestly, I don't need that much performance, I'm only playing flight sims and racing games, but I'd like my PC to be capable of playing something like BF4 1980x1080 on high/ultra with at least 40fps.

So other alternatives include the new 750ti, which I really like because it provides good performance (not too far off a 7870 in some games) and uses just 60W, then there's also the 660. These cards are £125 and £115 respectively. I don't want to go over £130, as this is the money I get back from my 7870.

Any advice would be greatly appreciated
 
Solution
You'd be risking a PSU failure by pushing it that hard, even a new unit will struggle to maintain 95% rated output over extended periods and power supplies gradually loose efficiency and out put over time so no, don't opt for the GTX580 unless you can get a 500W PSU to feed it.
Don't go cheap on any replacement either, stick with decent brands: Corsair, Silverstone, Seasonic, Antec, Rosewill Capstone or FSP, cheap units are more prone to failure, don't give their rated output and, in extreme cases, can wreck the system when they do fail because they also lack modern protection features..
Personally, I'd go for the GTX660, it's head and shoulders over the GTX750Ti.
You'd be risking a PSU failure by pushing it that hard, even a new unit will struggle to maintain 95% rated output over extended periods and power supplies gradually loose efficiency and out put over time so no, don't opt for the GTX580 unless you can get a 500W PSU to feed it.
Don't go cheap on any replacement either, stick with decent brands: Corsair, Silverstone, Seasonic, Antec, Rosewill Capstone or FSP, cheap units are more prone to failure, don't give their rated output and, in extreme cases, can wreck the system when they do fail because they also lack modern protection features..
Personally, I'd go for the GTX660, it's head and shoulders over the GTX750Ti.
 
Solution