I doubt it, it was a really nice upgrade from my hd4200 onboard I had a while back. If you plan on gaming at 1920x1080 be sure to get the 1gb version. But lag can also be from other sources. I'm guessing most or all of your issues would go away though. Edit: BTW, I had the Asus version of the 240. Seemed the best buy (price/quality).