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Corsair TX850 or AX750?

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February 1, 2013 8:53:31 PM

The title says it all. The AX750 is $20 more. What extra features does it have?

My planned rig -

ASUS P8Z77 / ASRock Z77 Extreme4 (undecided)
i5 3570k (will overclock at some point)
8gb Corsair Vengeance RAM
Seagate Barracuda 2tb drive
MSI gtx 670 Power Edition (plan to SLI in the future)

May add an SSD when I can afford it.

Will the AX750 be enough to run an overclocked 3570k at around 4.2 GHz and two gtx 670s?

Other PSU recommendations are welcome.

More about : corsair tx850 ax750

February 1, 2013 8:54:26 PM

Additionally, I could get the TX750m for $125 (about $25 less than the TX850).
February 1, 2013 8:58:59 PM

One more thing - is it worth it to get the 670 now and SLI later down the line, or should I get a 660 now to save some money? I could obviously SLI two of them too.
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February 1, 2013 9:13:13 PM

well the AX750 has a 7 year warranty as well as being fully modular (only plug in the cords to the PSU that you use), it is a VERY high quality PSU

I would grab the GTX670
February 1, 2013 9:15:28 PM

Is the CX750 enough to run a 670 or two in SLI?
a c 1108 ) Power supply
February 2, 2013 3:30:09 AM

PhilNye618 said:
Is the CX750 enough to run a 670 or two in SLI?

For a system using two reference clocked GeForce GTX 670 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 45 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most important factor.

Overclocking of the CPU and/or GPU(s) will require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The Corsair Builder Series CX750 (SKU# 75-001447 / CP-9020015), with its maximum combined +12 Volt continuous current rating of 62 Amps and with four (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with two GeForce GTX 670 graphics cards in 2-way SLI mode.
February 2, 2013 3:31:54 AM

Thanks for the answers, but I think I'll go with the HX750 to have a sort of modular power supply. Only just realized that the CX750 doesn't have all the cables I need to run the two GPUs (unless the site I'm getting the specs off of is wrong).
February 2, 2013 3:35:49 AM

So actually the CX750 does support all the cables I need, but the HX750 simply has more of them and is 80+ gold certified, etc. Definitely going with the HX this time around.
a c 1108 ) Power supply
February 2, 2013 3:37:42 AM

PhilNye618 said:
Thanks for the answers, but I think I'll go with the HX750 to have a sort of modular power supply. Only just realized that the CX750 doesn't have all the cables I need to run the two GPUs (unless the site I'm getting the specs off of is wrong).

The professional review of the CX750 says it has four (6+2)-pin PCI Express supplementary power connectors.

The packaging shows it also:

February 2, 2013 3:38:33 AM

ko888 said:
The professional review of the CX750 says it has four (6+2)-pin PCI Express supplementary power connectors.


Yeah I found out about that. The site I was looking at had the wrong specifications.
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