Recently I built a budget gaming pc for my brother. Intel Pentium G3240 + R7 250x 2GB with 4GB of RAM. While mine is FX 6300 + R7260x 1GB with 8GB RAM. What's strange is that his computer plays most games much better than mine. (Thief, Bioshock Infinite, B4 etc) Why is this? The only difference we have is that his monitor is a brand new LED monitor while mine is 6-7 years old LCD monitor. Is it the motherboard? Is it the cpu or gpu? I'm confused.