290x 7990 crossfire?

[Matriox]

So at the moment I have one r9 290x sapphire tri-x and I want to go in crossfire but I thought I've heard that the 7990 can be crossfired with it.. if so would it bottleneck with a fx 8350

Thanks

[SkilledRebuilds]

You cannot crossfire a 7990 with a 290

The 7990 is 2x 7970's, you can crossfire a 7990 with a 7950/7970/280/280x but not 290/290x

Hard to say about the bottleneck, I wouldn't think so but I've not tried it with that config.

[Sonefiler]

The crossfire won't work, and even if it did your CPU would bottleneck.

[Sauron]

No, you can only crossfire 290x gpus with an R9 290, another 290x or a 295x2. To crossfire with a 7990 you need a 280x.

[Matriox]

You cannot crossfire a 7990 with a 290

The 7990 is 2x 7970's, you can crossfire a 7990 with a 7950/7970/280/280x but not 290/290x

Hard to say about the bottleneck, I wouldn't think so but I've not tried it with that config.

If the 7990 is crossfired with the 280x, how does the 290x compete with the 7990?

[SkilledRebuilds]

If the 7990 is crossfired with the 280x, would that mean the 290x is better than the 7990?

The 7990 pulls ahead by a little bit, but the problem is when games first come out, most do NOT have the accompanied crossfire profile ready for AMD.

So your looking at single 7970 performance for those non-optimized titles. And it's quite common to be waiting for these profiles if the game isn't a AAA game. Sometimes the Crossfire profiles don't even come out for some games.

Hence the reason to get the best single GPU compard to 2x lesser GPUs for Xfire.

 

Plus newer technologies in the newer series, less of a performance hit doing the same features (tesselation and such)

[Matriox]

The 7990 pulls ahead, but the problem is when games first come out, most do NOT have the accompanied crossfire profile ready for AMD.

So your looking at single 7970 performance for those non-optimized titles.

Hence the reason to get the best single GPU compard to 2x lesser GPUs for Xfire.

I got you so should I just stick with the single 290x?

[Sonefiler]

I got you so should I just stick with the single 290x?

Yes. Don't get a reference card. It looks awesome but it doesn't cool anything properly. (well, maybe a 270X.)

[SkilledRebuilds]

Yes. Don't get a reference card. It looks awesome but it doesn't cool anything properly. (well, maybe a 270X.)

^This.

Steer clear of the cheaper 290's that have STOCK Reference coolers on them. They hit 90*c or more, and throttle their performance within minutes.

But an aftermarket cooled card, you'll be thanking your lucky stars you did.

The Gigabyte 290 or 290-OC

947mhz vs 1040 mhz

Great cooling, quiet, performs awesome, no throttling.

SHOULD be Under $450-460 in most places.

[Matriox]

^This.

Steer clear of the cheaper 290's that have STOCK Reference coolers on them. They hit 90*c or more, and throttle their performance within minutes.

But an aftermarket cooled card, you'll be thanking your lucky stars you did.

The Gigabyte 290 or 290-OC

947mhz vs 1040 mhz

Great cooling, quiet, performs awesome, no throttling.

SHOULD be Under $450-460 in most places.

Yeah I know I have the 290x from sapphire already and it doesn't go anywhere over 75