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Is this PSU good enough for this GTX260 card?

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Last response: in Components
December 8, 2008 12:35:10 PM


I am planning to get this GTX260:
and this power supply:

My system configuration:
Core 2 Duo E6750 2.66GHz
4GB Corsair DDR2 XMS2 RAM
1x DVD Burner
20" Asus LCD Monitor

Question: Is this PSU good enough to power my system with the GTX260 in it? I am not going to overclock and wont SLI ever. I am not sure how this ampere thingy works. I understand its a good thing to get a PSU with more wattage than required to keep the system stable on load. How much ampere does this GTX260 require and how do i find out if my PSU can support it? Thanks in advance.

More about : psu good gtx260 card

December 8, 2008 12:47:16 PM

You should be fine. Newegg has a PSU calculator here:
Related resources
December 8, 2008 12:48:51 PM

That power supply will work fine with a GTX260. 4-12V rails with 18Amps each is plenty for one card.
December 8, 2008 12:49:18 PM

That power supply will work fine with a GTX260. 4-12V rails with 18Amps each is plenty for one card.
December 8, 2008 12:51:42 PM

its ok ! but not to much
December 8, 2008 1:17:13 PM

You need a quality PSU which you have picked out. Even the Corsair 550 VX would power your rig. The rule of thumb is a 750W+ PSU is generally only required for Crossfire, dual GPU cards and SLI. Efficiency of a PSU often drops when it is running well below 1/2 rated capacity (not always true nowadays). As the capacitors age in a PSU age the real peak load capacity will start to decline. Also a PSU under or near to full load will have reduced efficiency. Hence why you want to overspec slightly. 600 W is overspec'd for your system so you are fine.

Here is a useful powersupply calculator:
However it rates GPU's at average of maximum 2D/3D load as far as I can make out (the GTX 260 draws more than 119 Watts that the calculator suggests under 3D load).

Wikipedia is the most useful guide to GPU loading:
136Watts for a GTX 260.

A review on Guru-of-3D:
They suggest a TDP of 182Watt (worst case) for the GTX 260 and a PSU with at least 38A on the 12V rail...

You almost run your rig of a Corsair 450 VX but it wouldn't have 2 PCIe 6-pin power connectors!!

Remember it's the 12V rail(s) amperage / wattage on the PSU that counts.

I would only mention that Corsair make slightly better PSU's than OCZ, this is also a good deal at the moment:

You can overclock your system with either the Corsair or OCZ PSUs quite safely (from a power standpoint anyways)!! :sol: 

December 8, 2008 1:33:36 PM

my E6850 @ 3.6ghz 9800GTX+ rig draw 320W gaming.

My TT toughpower 600W run directly in the half spot when i game. They told its the Best spot.

Bobwya is right, go for a good quality PSU, its the MOST impostant part of a computer.
December 8, 2008 2:02:04 PM

Wow, awesome..thanks you many responses in such a short time! :D  I'm convinced, i think i will try to get the corsair one :D