Sign in with
Sign up | Sign in
Your question

Best GPU for gaming with minimum Power requirement...

Last response: in Graphics & Displays
Share
May 9, 2012 7:16:41 PM

I hav a 450watt PSU
+12V rail is 25A rated....
i hav ordered a new PSU crosair 600w (GS600) and ATI radeon HD6750 DDR5
can i get a better GPU that can work on my old PSU??
a b U Graphics card
a b 4 Gaming
May 9, 2012 7:54:14 PM

You could get a 6670, the fastest GPU currently on the market that does not extra power from 6/8-pin PCIe power cables. As vmem suggested, a 7770 should also be well within a 450W PSU's capabilities if it has at least one 6-pin PCIe cable.
Related resources
May 10, 2012 4:04:50 AM

my psu dosen't have a 6pin....should i go for HD7750...rather than HD6670
a b U Graphics card
May 10, 2012 4:21:17 AM

Yea, the 7750 is the fastest card w/out the need of external power. It also consumes less power than the 6670.

7750 = 55W TDP
6670 = 66W TDP
a c 290 U Graphics card
a b 4 Gaming
May 10, 2012 4:23:16 AM

Yea HD 7750 is a better choice than HD 6670.
a b U Graphics card
a b 4 Gaming
May 10, 2012 4:25:54 AM

harsh321 said:
my psu dosen't have a 6pin....should i go for HD7750...rather than HD6670

A 7770 should work too, worst case you may need to use a molex-to-PCIe adapter which is perfectly adequate since the 7770 would only be 5-10W over the PCIe slot's power budget at most.
a c 102 U Graphics card
a b 4 Gaming
May 10, 2012 4:28:53 AM

My 2 cents here. Have a 5770 on a 300 watt power supply(mind you the parts had been picked for low power consumption as well) without issues. The 7770 takes less power so unless it is a real bad no name 450 watt psu(you have to watch for those 450-500 watt units with under 250 watts on the 12 volt rail....), it should work
a c 91 U Graphics card
a b 4 Gaming
May 10, 2012 4:48:52 AM

InvalidError said:
A 7770 should work too, worst case you may need to use a molex-to-PCIe adapter which is perfectly adequate since the 7770 would only be 5-10W over the PCIe slot's power budget at most.


+1 ^

I can't imagine a molex-to-PCIe adapter not working in this situation...
!