how to tell performance
just built a new comp, my first build and want to know how can I test my hardware to make sure everything is running good? is there something I can buy or download to help me test my stuff?
You can run stress tests to check if it's stable, and benchmarks or similar to look at performance.
Examples of stress tests would be Memtest86+ for memory, Prime95 for the CPU, and Furmark for the graphics card.
Benchmarks could be things like 3dmark, Unigine Heaven, Passmark etc.
Another option would be running Folding@Home, which uses the CPU and/or graphics card to generate useful data for biochemical research; it awards points based on work done, and the number of points per day indicate performance. Tom's Hardware has a Folding@Home team if you're interested.