Crossfire question

[cnapier39428]

I was thinking and I came up with a question about crossfiring two different cards, like a 7870 and a 7850 for example..OK so its common knowledge that the 7870 will drop its core and memory clocks to match the 7850, but will the 7870 disable cores to have the same core count as the 7850? I was just thinking this because back in the day I use to have a 7870 and I was wanting to crossfire it and almost bought a 7850 to crossfire it with but didn't want it to lose performance to meet the 7850 so I didn't but if it doesn't disable cores then it'd give performance between 2 7850s in crossfire and 2 7870s in crossfire...

[Unhelpful]

I'm not entirely sure if it would disable  Its a good question. I wish I read before giving an answer you didn't ask for. I don't know the answer. Disregard my post. Sorry.

[MbV93]

Yes, if you crossfire a 7870 with a 7850 it'll match the slower card. You'll essentially have 7850s in crossfire.

[GamerDude]

Yes, if you crossfire a 7870 with a 7850 it'll match the slower card. You'll essentially have 7850s in crossfire.

That was what I'd believed, but was told that a HD7870 + HD7850 CF performance would be better than 2x HD7850 but weaker than 2x HD7870. I don't recall reading any benchmarks that showed such CF setups though, so I can't vouch for its veracity.

[cnapier39428]

That was what I'd believed, but was told that a HD7870 + HD7850 CF performance would be better than 2x HD7850 but weaker than 2x HD7870. I don't recall reading any benchmarks that showed such CF setups though, so I can't vouch for its veracity.

I kinda wish I would have bought the 7850 just to see, I've never seen anything about it disabling cores and Ive read a lot of stuff about it so I don't believe it does but I'm not entirely sure