This is a low power card that came out of an Acer Nitro desktop, it does not require an external power source, just pop it in your rig and get to gaming! It has never been overclocked or stress tested. It has been benchmarked at 1080p medium graphics and will stick right at 60fps with occasional drops to 50-55. This is a great budget card to throw in that office pc you have laying around the house and will deliver decent performance for your gaming needs!!