Power supply for the GeForce GTX 1660 Super

How much power the GeForce GTX 1660 Super needs

The GeForce GTX 1660 Super is rated at 125 W. With Ryzen 5 5600 the whole PC comes to about 303 W under load, so a 450 W power supply gives about 40 percent headroom and a 450 W unit is the least we would use. Across the four processors in the table the recommended size runs from 450 W to 650 W, which shows how much the processor matters.

For comparison with the neighbouring cards in our list, the GeForce GTX 1660 (120 W) needs 450 W and the GeForce GTX 1660 Ti (120 W) needs 450 W with the same processor.

Processor by processor

For the GeForce GTX 1660 Super, with the Ryzen 5 5600 the load is about 303 W and a 450 W supply fits; with the Ryzen 5 7600 the load is about 303 W and a 450 W supply fits; with the Core i5-14600K the load is about 438 W and a 650 W supply fits; with the Ryzen 7 7800X3D the load is about 369 W and a 550 W supply fits. The gap between the lightest and the heaviest build is 200 W of recommended supply, which is about the rating of a mid-range graphics card on its own.