I was concerned about Temps and power but it all seems unwarranted I bought the best thermal paste and took extra care making sure the whole CPU was covered.
The temp increase may be around 8° the load is around 10 watts greater running the Sim.
and don’t forget you will be lucky if it’s workload goes above 25%
Here are a couple of screenshots of temps
3700X
5800X3D
Just moved from my 3700X to the 5800X3D and the smoothness on approach was well worth it, I pushed the PC to the limit beforehand with 5 or 6 ultra settings on a widescreen monitor at 1440p.
Bought secondhand 5800X3D for £265 and might get £100 for 3700X it’s the best improvement you can get for £165 quid.
P.S. forgot to mention, I have a gigabyte MoBo and the very latest Bios has been optimised for this very processor, so it could have improved the temps, and you can always undervolt and lower temps by 10 degrees.
Window 11 pro 64 Microsoft download Premium version
Thrustmaster Airbus SideStick & 2 Lever Quadrant + add-on
Ryzen 5800X3D SCFM 2000 FUMA2 cooler ( Ectotherm compound )
GIGABYTE RTX 3060 Ti 8 GB GAMING OC Pro
Corsair Vengeance LPX 32GB (DDR4-3200)
Gigabyte 1TB M.2 PCIe NVMe
Gigabyte B550 AORUS ELITE
MSI Optix 3440 x 1440