Thanks to AMD changing things just before the launch, I'm going to split the results in the charts for temperature of the card on the old BIOS and the new BIOS. SAPPHIRE tweaked the GPU frequency, GDDR6 clocks, and the fan speed curves as well which results in not just a faster operating card, but a cooler one.
Before I updated the BIOS the card was running at 66C with a peak of 67-68C, while the GPU was clocked at 1620MHz and the VRAM at 1500MHz. SAPPHIRE had the fan speed sitting at around 800RPM (24%) but once the new BIOS was installed the GPU frequency leaps up by 100MHz to 1720MHz or so, GDDR6 cranks up to 1750MHz, and the fan speed up to 1200RPM (40%) -- but the GPU temps dropped down from 66C to just 58C, a very big difference.
You won't be needing a new PSU if you buy the Radeon RX 5600 XT, with my entire Intel Core i7-8700K rig using less than 200W under full 4K benchmark loads. The old BIOS was 10W better at 190W total, while under the new BIOS the power consumption of the entire system ramped up to 200W.
Last updated: Feb 19, 2020 at 01:21 pm CST