Originally Posted by B!0HaZard
Someone with an almost identical setup here! I'm on a 2560x1440 monitor so for me, it is very important that CFX is working or I won't have proper frame rates in most games. I have almost all the games you mentioned. You're particularly unlucky with your choice in games when it comes to CFX, but you shouldn't have this many issues.
BF3: Should not be an issue. I'm getting the expected GPU usage with CFX. I had some issues first time I started the game because one card didn't go to 3D clocks, but that was a fluke.
Assasins Creed III: This game doesn't play well with CFX or AMD cards in general. I haven't opened my copy of it, but I can fire it up to give you an idea of how it should run although I bet it's not an issue on your end.
Crysis 1: This game only supports 2 CPU threads so it's prone to CPU limitations. Have you tried increasing graphics settings? If the FPS stays roughly the same and the GPU usage increases, it's probably a CPU bottleneck.
Far Cry 3: Stutters on all setups. This game literally does not run perfectly on any setup, even single card NVIDIA systems.
GTA IV: Does not work properly with AMD cards. This isn't even a CFX problem, it's just the game and AMD cards that don't play well together.
Skyrim: I haven't really had issues with flickering and I haven't installed an ENB yet, but I have roughly 150 mods with no issues. Which ENB isn't working for you?
Personally, I'm really enjoying my 7950's compared to my GTX 680. I knew about GTA4 and can run it on medium if I really want to play it so for me that's not a big deal.
BF3 for me shows 50% usage per card and fps is equivalent to what a single card would give me. In BF3 i can see both cards are at 1GHz Core / 1400MHz memory so they are in 3d clocks. I play on ultra @ 1080p, from what i have seen i should be getting alot higher fps, and your post confirms this. Not sure what is wrong here tbh
Assassins Creed III runs like crap on AMD cards, benches i have seen show it heavily in favour of Nvidia cards, if i rename the exe to assasins creed brotherhood or such crossfire works, but the game still runs like crap. Suprised that there is not a crossfire profile or even some sort of driver fix for such a huge game.
Crysis 1, saw higher performance on my 2 5850s which pulled 79fps avg. If i apply 8x aa gpu usage does increase, fps stays the same so it may well just be a cpu bottleneck
Far Cry 3 for me ran perfectly on a single 670, and a single 7950, just was hoping to max it out with 7950 crossfire, disappointed now though as it looks like i will be disabling crossfire for this game
GTA IV runs like crap on AMD? crud lol
Skyrim, cinematic enb, had the issue where everything is blurry and the menu flickers, it seems to be an issue with enbs them selves, all the other mods work fine
Cheers for the help
Originally Posted by Sodalink
completely off topic, but I'm just curious seeing how people with really nice systems have problem with GTA4. Years back my brother used to run it just fine with a Phenom II x2 and a 4850 in mid-high settings and not going below 30 fps (not impressive, but for such low system). Is GTA4 that bad optimized?
Back to topic, I plan on getting a second 7950 and reading this worries me. I also have an i5 2500k at stock right now, but had it at 4.5ghz. What brand and models of cards did you get OP?
My 670 ran GTA 4 much better, just seems to run like crap on AMD cards.
The brand of my cards are XFX and MSI, both overclocked to 1GHz/1400MHz