I just installed this CG to replace my 8800GT (comparable electricity consumption), which has just the soul. Windows 7 The index rose from 6.9 to 7.3. Please note you must have an additional 6 pin connector to power (over 75W), which is the case on my Dell XPS 420. To conclude, order placed at noon 1/12/11 received on 3/12/11 at 10 o 'clock. Amazon thank you !!!