Is 620 Watt PSU enough for a Radeon HD 7770 CrossFire along with an AMD FX 8350?

I was wondering about my PSU, how much Watt does my system actually require?

These are my Rigs:-

a) AMD FX 8350

b) ATI/AMD Radeon HD 7770 (Multi-GPU)

c) Gigabyte GA-78LMT-USB3

d) G.Skill RipjawsX DDR3 8 GB (2 x 4 GB) (F3-12800CL9D-8GBXL)

e) Deepcool XFAN120L/R

f) Deepcool ALTA 9

g) WD Caviar Green 1 TB HDD (WD10EZRX
5 answers Last reply Best Answer
More about 620 watt psu radeon 7770 crossfire amd 8350
  1. If it's a decent PSU 620w will be more than enough.
  2. SR-71 Blackbird said:
    If it's a decent PSU 620w will be more than enough.

    Seasonic S12II 620 Watts PSU?

    Which is the minimum PSU I need for this rig? I mean less than a 620 Watt PSU. I have budget issues. :(
  3. Best answer
    No less than 620.
  4. Alright then, thanks. :)
  5. Bubun Karmakar said:
    Alright then, thanks. :)

    Hi - actually that system can run fine on any quality 430w PSU & above. You do
    not need 620w. You need to insure that it has at least 19 +12v amps and at least
    one PCIE connector. Most quality 430,450, & 500w unit easily meet those requirements.

    Altho, a Seasonic 620 is nice if you are limited on funds then look for a deal on something
    in the 430 to 500w range.

    Hi - the Corsair cx500 v2 can now be had for $30 net ($10 promo ends today) with
    promo & mir

    and there's a host of PSU less than $50 that will handle that system well.

    Sorry, didn't notice flipkart till after, same logic applies tho, 430-500w
    with min 19 +12v amps & one pcie connector.

    This one will easily power that system for 2000rs less:

    Oooops - sorry - didn't notice CF (not enough coffee yet), yes stick with the 620.
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