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Poor 6970 CrossFire Performance in Crysis 2 DX11

post #1 of 15
Thread Starter 
rig in the sig

playing CRYSIS 2 in 1920x1080 with DX11 + high res texture ALL SETTINGS ON ULTRA

i get very poor performance - there are times when it is 60 fps solid but there are a lot of times when the framerate drops to 45-35 fps. Sometimes even down in the low 20s when its get real choppy. I assumed that dual 6970's would never see a dip below 50 fps. I have the LATEST drivers and Crossfire Profiles installed from AMD.

Is this is an engine issue? a driver issue?

other games work great, BF3 (all ultra maxed) is 60 fps solid, never dips below 55!

What do you guys think is the problem
Edited by Tradio - 2/26/12 at 6:13pm
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post #2 of 15
What game are you referring to?
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post #3 of 15
crysis 2 dx11 + 69xx + tessellation = poopy performance for the most part ...
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post #4 of 15
What's your GPU usage like in game?
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by kiwiasian View Post

What's your GPU usage like in game?

it varies it ranges from 65% - 95%

for the most part on average it is in the high 60s/low 70s
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post #6 of 15
Bummer, I get 60-80 solid on extreme...
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post #7 of 15
Turn off tessellation and report back on what the fps is ... it may just be an issue with that
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Saitek Gaming keyboard ... >_> Corsair TX750 Rosewill Gear x3 
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C2D P8600 @ 2.4Ghz (undervolted) Crappy dell Studio XPS one 4670M (1GB) I don't remember... 
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post #8 of 15
i get crappy performance also.......FX6100@4.5GHz and 5770CF@960/5300........1920x1080 all max DX11.......varies from 20 to 65FPS
    
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post #9 of 15
AMD cards struggle with Crysis 2 in DX11 Mode for the most part, the tessllation cuts the performance by i think 30%-40% depending on card you get(6800's and 6900's) much worse then Geforce cards which only have around 15-25% Performance reduction in DX11. only thing i can suggest is limit via CCC the tessellation to 2x maybe that'll help improve the frames enough cause if you didn't set Catalyst to force the 2x if your can of course Tessellation on Crysis 2 and just played it straight up... it's a engine problem mostly....
Edited by JunkoXan - 2/26/12 at 9:02pm
    
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post #10 of 15
Thread Starter 
I would understand a single 6970 struggling with the game but Crossfire 6970? I guess I need to reset my expectations with my setup
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Intel Core i5 2500k 4.5 GHz ASUS P8Z68-V PRO Radeon HD 6970 CFX 8.00 GB Dual-Channel DDR3 @ 1600MHz (9-9-9-21) 
Hard DriveCoolingOSMonitor
120GB Intel 320 SSD Cooler Master Hyper 212+ MS Windows 7 64-bit SP1 Acer H223H 
PowerCaseAudio
OCZ 850w Cooler Master CM 690 II Asus Xonar DG 
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My Current Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500k 4.5 GHz ASUS P8Z68-V PRO Radeon HD 6970 CFX 8.00 GB Dual-Channel DDR3 @ 1600MHz (9-9-9-21) 
Hard DriveCoolingOSMonitor
120GB Intel 320 SSD Cooler Master Hyper 212+ MS Windows 7 64-bit SP1 Acer H223H 
PowerCaseAudio
OCZ 850w Cooler Master CM 690 II Asus Xonar DG 
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