Recently in newer games I have been feeling like I am not getting the full performance out of my system. I did recently upgrade to 3 1440p monitors, however, I only game on one. I feel like the performance issues that I am having is due to the low amount of vram on my graphic cards mixed with the high res desplays that I am using. Is this what is holding my system back, or is there something else I can do to try and improve performance?
So the important parts of my system:
CPU: Intel Core i7-3930K 3.2GHz 6-Core Processor OCed to 4.0GHz
Motherboard: MSI Big Bang - XPower II XL ATX LGA2011 Motherboard
Memory: G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-2133 Memory
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive
Storage: Kingston HyperX 3K 120GB 2.5" Solid State Disk
Storage: A-Data XPG SX900 256GB 2.5" Solid State Disk
Video Card: Galaxy GeForce GTX 680 2GB Video Card (3-Way SLI)
Power Supply: Corsair Professional Gold 1200W 80 PLUS Gold Certified ATX12V
What kind of performance are you getting? 1440p requires a lot. What you consider low performance might be considered the normal result.
Try lowering all your in game settings, that is going to be the only way you'll get performance results. Unless, there is some kind of problem in your setup. (e.g faulty card)
It's probably the 2GB VRAM limit. Games use it as dynamically as possible, but it's quite likely that you are surpassing it. I'd consider selling your 680s for two 780s, or triple 7950s/7970s.