Need help guys. Stutter during gaming.

[Swolern]

A couple games that really push the GPU like Crysis 2, Metro 2033, & Witcher 2 all at max setting is where I noticed the stuttering problem
(During games running FRAPS to see fps) when my rate during play onscreen is maxed at 60fps everything is smooth as butter during movement. But when framerate drops below 60 I get some bad constant stuttering during movement, very noticeable when panning slowly left or right. Now this happens right below 60FPS, starting at 59 FPS and below I get this stutter effect (with Vsync on). It makes it look like framerate in 20s & teens.

Here is what I see. This is not my video, but looks exactly the same as my stuttering problem
http://www.youtube.com/watch?v=TgM2O8Ci4SU&feature=related


My System
-CPU- i5 2500k OC @ 4.3GHz 
-Cooler- CM Hyper 212 
-Motherboard- Asus-Z68-Pro 
-RAM- G.Skill DDR3 1600 CL8 1.5v 
-GPU-EVGA GTX 590 Classified 
-Samsung Spinpoint F4 2tb HDD 
-PSU-Corsair 1050 watt Professional Series 
-Case-Cooler Master HAF X
-OS- Windows 7 64bit

 

[Swolern]

This is everything I've done. Don't know what else to do???

- Vsync off, still stutter but less often, not noticeable until 45 FPS and below
-reset all components to stock speeds and settings
- tried different input cables hdmi, VGA
- tried different 60 Hz monitors
- installed and tested all previous drivers for the 590. Including 285beta
- stress and tested each component via 3dMark. Everything scored above Average
-  setting Force Vsync on/off
-Power management mode to Prefer Maximum Performance/default
-Maximum pre-rendered frames at 0- 5
- disabled SLI  to run only one GPU to rule out SLI microstutter. Adjusted graphic setting to get 50s FPS. Still stutters

- download EVGA sli enhancement patch 

- tested with my friend's AMD 6990 in my PC. Same stutter
-tried GTX 560 Ti
- tested memtest- passed x4

- bought SSD put clean install of OS &  Essentials only
- above install Inculded reset of CMOS
- tried on windows 8 OS

 

[holdingholder]

Probably a micro stuttering issue since the 590 is a dual gpu card, really nothing you can do to avoid it.

 

[Swolern]

Probably a micro stuttering issue since the 590 is a dual gpu card, really nothing you can do to avoid it.

I get the same stutter with sli disabled and when I tried the 560(single GPU)