so fast. Single best purchase I've made for pc in a long time. booted in seconds. went and bought another one immediately. needs a heatsink if your motherboard doesn't have one. If you have a m/b with heatsink under the gpu keep an eye on temps. e.g gigabyte x370 g3, badly designed m2 position and heat shield. moved mine to new tuf 450 and super fast and cool.