CPU Delid

So I can't for the life of me figure out the name of the part. I de lidded my processor on an old I7 3770k intel, and when I was checking it over I accidentally dropped it and the copper IHS I put on popped off, woops. Took a look at it looks fine no major cracks no bends, I couldn't see any...

My computer runs slow - lower FPS than it should be. and the fun part is when I decrease the quality from ultra to high or even to medium nothing really changes. I ran Afterburner and AIDA and it showed that only about 3 gb is in use while hardware mem is over the roof. around 9GB! I turned...