Overall, the performance of the Capstone 750W is unexpectedly good, considering it is one of the first high performance power supplies that Rosewill released and the fact that the company is usually aiming for maximum value instead of top performance. Aside from the high electrical efficiency, which we could expect from a power supply bearing the 80Plus Gold certification, the 750W version of the Capstone also delivers excellent electrical performance, with tight voltage regulation and excellent ripple suppression..."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips