ATI Radeon 4870 & 4890 CF performance

Apr 25, 2009
  1. Hey guys i just want to know would there be a performance increase if i have a 4870 1GB and a 4890 in crossfire. I looked on other forums and some said that if you have like a 4870 1GB and a 4870 512M it wont double and it will just both read 512M. And if you had a 4870 and a 4850 the cards will act if it where a 4850x2 instead of a 4870 with a boost of speed and RAM etc. from the 4850 is this right.
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