This is my first PC build, and I have been looking into these 2 cards. I play games like Minecraft, various Source engine games like TF2 and CS:GO, and I would like something to run BF3 and BF4 along with Planetside 2. Medium-ish settings with at least 60 fps is my goal. I'm scared to try overclocking. I have a 650 watt power supply, and don't worry, I did my homework and I know that it has 6 pin PCI-E cables ready. I'm also afraid of a bottleneck- I only have an FX 6100. Can someone give me some insight on both of these?