What can I do with 750w

EZblaze

Honorable
Nov 21, 2013
20
0
10,510
Hi guys I recently purchased an XFX PRO750W XXX Edition

http://www.newegg.ca/Product/Product.aspx?Item=N82E16817207016

It was on sale for 80 dollars in Canada and after some research I found out the oem is seasonic who have a rock-solid reputation. I figured it was a good buy :D

I'm using this for a brand new gaming build, and I'm missing the CPU, mobo, RAM, and GPU at the time of writing. I plan for a higher-end build, at least 3570k/z77 or ideally 4670k/z87, with future upgrade into an i7. For gpu I plan for gtx 760, or if I save some money I'll buy a 780/r9 290. I'll go with 8gb RAM for now and upgrade to 16 in the future.

I understand 550w is plenty for a single-card build, but was buying a 750w an unwise decision? Did I go overboard with the psu? I don't plan on returning it now, but I was just curious as to what I can actually do with a 750w unit. Research suggests that 850w is recommended for a dual-GPU setup, there are some that suggest 750w is more than enough. What upgrades can I make with my system without changing the PSU? I'd like to know the absolute maximum capabilities of this 750w unit, as well as more realistic options for upgrades in the future.

If it matters at all, right now I have a Corsair 300R case and a 120gb kingston v300 SSD.
 
Solution
I'd say 650watt for any single card (NVidia calls out 42A on single rail, you won't find that on many "550's"...)

As for youe 750watt supply, any Single card of course. I'd also go up to dual 270X's or GTX760's. Bumping up to dual 280X's or GTX770's would be Marginal IF it worked. I'm running dual 280X's and drawing a steady 650watts while gaming bit much for a 750watter.... (I run a Corsair 850HX .... no issues)

NOTE: when you buy that motherboard, be VERY, VERY sure it supports SLI and Crossfire with x8 / x8 PCI-E slots. Many motherboards "claim" multi-GPU support but at x4 which I've found is worthless in games....

ONLY Single:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131824

Proper Dual: (almost identical part...
This power supply is very good.
You could run two GTX 760 cards in SLI, but I wouldn't run higher power cards in SLI or Crossfire with a 750W power supply.
The only downside of buying a power supply that is too powerful is price. It won't cause you any problems.
 

jb6684

Distinguished
I'd say 650watt for any single card (NVidia calls out 42A on single rail, you won't find that on many "550's"...)

As for youe 750watt supply, any Single card of course. I'd also go up to dual 270X's or GTX760's. Bumping up to dual 280X's or GTX770's would be Marginal IF it worked. I'm running dual 280X's and drawing a steady 650watts while gaming bit much for a 750watter.... (I run a Corsair 850HX .... no issues)

NOTE: when you buy that motherboard, be VERY, VERY sure it supports SLI and Crossfire with x8 / x8 PCI-E slots. Many motherboards "claim" multi-GPU support but at x4 which I've found is worthless in games....

ONLY Single:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131824

Proper Dual: (almost identical part numbers !!! )
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131837
 
Solution