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Portal 2 stuttering

post #1 of 3
Thread Starter 
For some weird reason I am getting stuttering in portal 2 as if the frame rate is low but its not my 2x 6970's easily max it out because fraps shows its always at 59/60 fps, is it a bug in the ati drivers?
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My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel I7 4770k @ 4.5ghz MSI PC MATE Z97 EVGA gtx 780ti Samsung green 8gb 30nm 
Hard DriveHard DriveOSMonitor
Crucial M4 128GB OCZ vertex 4 128gb Windows 7 64bit BenQ G2420HDBL LED Monitor 
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Microsoft Sidewinder X6 Antec TruePower Moduler 750w Zalman z9 plus Microsoft Sidewinder X8 Wireless 
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post #2 of 3
Enable triple buffer and vsync. Or try to disable it. You may have to wait for CF CAPS so the game works in CF properly.
X79-GCN
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X79-GCN
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CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
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post #3 of 3
I had the same issue fixed by using radeon pro with the fear profile, disable windows aero and give max CPU priority.
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XEON POWER
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Xeon E3-1280 V2 Asus p8h77-i EVGA GTX 570  Corsair Dominator Platinum 1866 cl9 16gb 2x8gb 
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Samsung Spinpoint F3 Samsung 830 Crucial C300 Samsung USB Blu-Ray 
OSMonitorMonitorKeyboard
Windows 8 Dell U2711 HP 2709m Razer Blackwidow 
PowerCaseMouseMouse Pad
Silverstone Strider Essentials ST60ES-F Bitfenix Prodigy Razer Naga Molten razer sphex 
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onboard 
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