At that low of a resolution with that GPU it's hard to say either way, whether you were gaming @ 1920x1080p the bottleneck being the GPU or at 1280x1024 with that CPU. Don't expect that CPU to shit FPS though because it's seriously underwhelming for that GPU IMO. I'm assuming you're stuck with that resolution? Your gaming experience will rely more on that CPU than the GPU with just about any game out there right now.