Am I missing something?

[Martin 71]

Hello,
I'm running a system with a phenom II 965 at 4 ghz and 4 gb of ddr2 ram. I have 2 hd 6870s in crossfire. The problem is, I cannot achieve decent fps in crysis, crysis warhead, splinter cell conviction, or brink. In the games which other similar systems would pull far higher fps I get comparatively low fps. For instance, I should have well over 60 in brink. I get 25-30. Aggravating. In crysis I should have way higher fps but I pull a meek 30. People tell me I'm CPU limited, but shouldn't I have a little more fps? Isnt crysis a gpu intensive game?

 

[jimmysmitty]

First is what resolution are you playing at? That makes the largest difference.

Second, do you have the latest catalyst drivers and have you verified that crossfire is indeed working? Almost looks like you have about half the FPS which could point to CFX not being active or working.

In fact list your full specs (PSU, mobo etc).

 

[compulsivebuilder]

Yes, Crysis is GPU limited, to an extent. However, to be GPU limited, the GPUs have to be getting their instructions quickly enough. I don't know that CPU, but if you are using a system that uses DDR2 RAM, I suspect it is an older CPU, and really is limiting the performance of the games.

Have a look at the CPU being used when people review the 6870 video card (especially when they review it in CrossFire configuration) - you'll see they are using quite a powerful CPU to drive it. That is to avoid being CPU-limited.

 

[Martin 71]

Hey, phenom II 965@ 4 ghz. 4gb ddr2 ram @667mhz. Xfire hd6870s. Msi 790xt-g45. Kingwin lazer 750 watt PSU. As for if xfire is working, both cards scale to about 90% in metro 2033 and I get around 60fps. I run a tri monitor setup, 2 monitors at 1024x768 and my main one at 1600x900 I don't use eyefinity.