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PSU for dual GTX 460's

  • Power Supplies
  • Gtx
  • CPUs
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Last response: in Components
a b à CPUs
September 25, 2011 9:23:55 PM

How much watt power supply do I need for dual GTX 460's and a 125w CPU?

More about : psu dual gtx 460

a b ) Power supply
a b à CPUs
September 25, 2011 9:28:10 PM

A good 650-750w will work.

As such, I recommend PSU's from companies such as Seasonic, Corsair, Antec, and XFX because their products are high quality, independently tested by well known and trusted websites, and the past record of the company in producing and selling good products.

Here's a few i recommend...

Seasonic X 650 [it's on sale for $110!!!!!! Arguably best psu for that price]

Corsair TX 750 V2

Corsair TX 650 V2

XFX pro 750

XFX Core 650

Antec EA 750

Antec HCP - 750

Best solution

a b ) Power supply
a b à CPUs
September 25, 2011 10:29:38 PM

As far as PSUs are concerned, be informed. Before you buy any PSU read accurate, objective PSU reviews at reputable sites such as or on the EXACT model PSU that you are interested in as some brands have good and poor quality PSUs.

You can also get an accurate rating of how much PSU power is required for your current or future system at the PSU calculator link below. Once you know the total PSU watts required then you need to confirm that the 12v rail has enough amps. to support your Vid card(s) and the rest of the PC system.

There are several websites that show the Vid card power consumption in watts. Divide the watts by 12 to determine the amps. required on the 12v rail(s). Add 15 amps for the rest of the PC on the 12v rail and you now know the Minimum total 12v rail amps required under full load. It's best to have at least 5-10 amps. reserve on the 12v rail available under full load so the PSU is not loaded to 100%.

It's also worth noting that people often misunderstand the 80% power rating. This is a rating of the PSU's energy efficiency not it's output. 80% plus PSUs use less grid power to produce the same PC power. If it's 80% Bronze, Silver or Gold the cost savings on electricity is pretty small between Bronze, Silver and Gold unless you are paying very high rates for electricity so any 80% rated quality PSU is fine even if not Gold. For those who leave their PC on 24/7 a quality 80% PSU is a good investment.

a b à CPUs
September 26, 2011 10:51:49 AM

Best answer selected by samuelspark.