MSI's custom Radeon RX 5700 GAMING X in our Intel Core i7-8700K test bed has the entire system using 220W, just 10W more than the reference Radeon RX 5700 graphics card. This is the same power as NVIDIA's reference GeForce RTX 2060 Founders Edition, and much less than even the RX 580.
When it comes to thermals MSI has worked its magic on the RX 5700 GAMING X with its TWIN FROZR 7 cooler, with the card running at just 61C.... compare this to the reference RX 5700 at 70C and you have more performance at significantly less temperature.
This means much less heat in your PC, and overall temperature drops on your CPU in some cases too depending on the cooling you're using. It's also the coolest operating graphics card on our stack now.