Hello, I just bought two 7970 crossfire 2 days ago, but for some reason I only get 30fps on ultra settings 1920x1080. When I should be able to get 120 fps.
The rest of my build:
CPU: AMD Phenom ll x6 1100T processor
RAM: G.Skill Ripjaws X 8GB 2133 MHz
Motherboard: Crosshair IV Formula
PSU: Corsair GS800
Monitor: LG Flatron W2363D (120hz refresh rate)
Can anyone help me?
I mean i dont think it should be bottleneckin because the cpu is actually quite decent im using one of them. it sounds more like hardware probs or even the game just not working properly with that model in crossfire it happens all the time then amd release a driver and everythings fixed untilll the next one lol.
If its doing it with all your games then it sounds like bottleneckin but it shouldnt justify having to go out and but a better cpu like a i5 or i7 because amd 1100t are really good cpus aswell.
No, with that CPU you should absolutely not be able to get 120fps.
You are (with 99.9% certainty) majorly CPU bottlenecked on a single monitor. You need an i5-2500k/3570k or i7-2600k/3770k or better CPU to run 7970 Crossfire.
Its six core cpu i belive it can handle 7970 c.f
He should cheke his gpu c.f connection(low propbility)
He should insert one gpu copy the driver then insert other gpu and copy again the driver (high propbility)
Almost forgot there are mobo's that dont need the c.f gpu connection so he should try without the con if he didnt
Again, only in BF3. 90% of games will bottleneck, some pretty badly. Not sure you guys understand that core count beyond 2 still doesn't mean a whole lot for gaming in general...
You guys also forget that I ran a Phenom II x6 @ 4.0 GHz with a single 7970 for a few months, then changed out my CPU to the core i7-2600k. It makes a BIG difference in a lot of games with even one card, let alone two.
If you're trying to build a rig for 120 fps gaming, a K-series sandy or ivy bridge CPU is a must, unless you feel like trying to get your AMD chip up to 8 GHz or so