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How many watts do i need for crossfire (XFX Radeon HD 6950 2GB GDDR5 "

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October 3, 2011 6:45:09 PM

Ok guys. im gonna buy a new rig. and theese are the specs.

CPU:AMD Phenom II x6 1055T
GPU:XFX Radeon HD 6950 2GB GDDR5 "Dual Fan" X2
MOBO:US M4A89GTD
HDD:Western Digital Caviar SE16 500GB X2
SSD:Crucial m4 SSD 2,5" 64GB
CASE:Antec Dark Fleet DF-30 Midi Tower
PWS:Corsair TX V2 650W PSU ATX BRONZE


Is the power suply capable for this? or do i need a more powerful one like 800W or mabey even 1000W?

More about : watts crossfire xfx radeon 6950 2gb gddr5

October 3, 2011 6:57:32 PM

an 800 watt would be ideal to be on the safe side and i would not recommend getting that cpu , the 6 core thuban cpus actually perform slightly worse than the deneb quad core. you would get better performance out of a cheaper x4 955 be, or you wait like a week for the hopefully awesome bulldozer
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October 3, 2011 7:00:29 PM

thanks man :3 but do you think i need to go for 650w or 700w? beacuse 6970 uses 601w in cf in furmark
October 3, 2011 7:01:31 PM

i meant to say slightly worse FOR GAMING
October 3, 2011 7:01:45 PM

jordanjr23 said:
an 800 watt would be ideal to be on the safe side and i would not recommend getting that cpu , the 6 core thuban cpus actually perform slightly worse than the deneb quad core. you would get better performance out of a cheaper x4 955 be, or you wait like a week for the hopefully awesome bulldozer


im realy looking forwoard for the bulldozer series but i dont think my budget will hold ( cus i want the 8 cores :3) but i might ust wait for it :) 
October 3, 2011 7:05:07 PM

just because the power supply is 650 and the wattage you need is 600 doesnt mean it will work. its more specific than that. you need to see how much your power supply can provide on your 12v, and how split those 12v rails are. it will show you on the sticker on the power supply. you have 1 12v rail and its rated at 53 amps, which is 636 watts.
so as long as you have 4 6pin pci-e power connectors you should be fine, as thats what 2 of those cards will need. unless you are getting a version of the 6950 that uses an 8 pin. but i doubt it. if you dont have enough pci-e connectors you can buy splitters and adapters on newegg.com
October 3, 2011 7:07:57 PM

go 750-800 its always better to get a more than you need as you start adding extra drives and stuff and maybe even a couple overclocks you'll more power and keep in mind power supplies degrade over time. trust me its easier to just spend an extra $30 now than have to worry about it later and make sure you get a name brand power supply with four 6 pin pci e connectors
October 3, 2011 7:17:28 PM

farrengottu said:
just because the power supply is 650 and the wattage you need is 600 doesnt mean it will work. its more specific than that. you need to see how much your power supply can provide on your 12v, and how split those 12v rails are. it will show you on the sticker on the power supply. you have 1 12v rail and its rated at 53 amps, which is 636 watts.
so as long as you have 4 6pin pci-e power connectors you should be fine, as thats what 2 of those cards will need. unless you are getting a version of the 6950 that uses an 8 pin. but i doubt it. if you dont have enough pci-e connectors you can buy splitters and adapters on newegg.com


my problem is that i cant buy from new egg. damn usa only ships :( ...

but i think il get some 4 pin to 6 pin conectors if its possible?

or il ust get a psu whit 4 6 pins.

anyways my budget is: 2500$

and i thought of going a notch higher whit a single 6990? woud it perform better as it woud cost less and be less power eager?
!