I use 4.0-6000. I normally use the newest dev build.
These are the specs of my newest laptop:
XMG Pro 17
Windows 10 x64
Intel Core i7-9750H @ 2.60 GHz (4.50 GHz Turbo Boost)
NVidia GeForce RTX 2070 @ 8GB
32 GB RAM DDR4
XMG Pro 17
Windows 10 x64
Intel Core i7-9750H @ 2.60 GHz (4.50 GHz Turbo Boost)
NVidia GeForce RTX 2070 @ 8GB
32 GB RAM DDR4
