6950 crossfire or 6850 2gb version crossfire

I don't have a big psu it will be 650watt and price wise the 6850 2gb edition £134 the 2gb 6950 £169 I was wondering about power consumption more than anything else
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More about 6950 crossfire 6850 version crossfire
  1. Hi

    take a look here: http://www.anandtech.com/bench/Product/302?vs=293

    as you can see HD6850 CF smashes a single HD6950, but consumes alot more power, over 400W in furmark...

    If your power supply is a quality brand like Corsair, Antec, Seasonic ETC... HD6850 CF will be fine.
  2. If you have a good psu, like omgitsfatal said, you could even run two 6950 in crossfire.
  3. scratch that 7850 crossfire or 6950 crossfire?
  4. I can't find a HD7850 CF review, but a single HD7850 uses slightly less power than a HD6950 so we can conclude that HD7850 CF will use roughly 450W under load.

    I still wouldn't trust a generic 650W to power HD7850 CF so again make sure you have a quality PSU, and if your not sure just tell us the make and model and we'll be able to help.
  5. OCZ Technology ZS Series 650W 80+ Bronze Power Supply
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