Is the NIGHTWALKER v2 good for 4K gaming?

Yes for most current titles. The RX 9070 XT is built for high-refresh 1440p and reaches playable 4K frame rates, though the heaviest ray-traced games will need upscaling or lower settings.

Is the Ryzen 7 7800X3D still worth it?

For gaming, yes. Its 3D V-Cache keeps it near the top in frame rates, and it costs far less than the newest X3D flagships while staying close in most games.

Can I upgrade the memory and storage later?

Yes. The B850 board takes DDR5 and has room for more M.2 drives, and the 850W Gold PSU leaves headroom for a stronger GPU down the line.

Does it come with Windows installed?

Yes, Windows 11 Home is preinstalled, so the system is ready to set up and use out of the box.

Is 32GB of RAM necessary for gaming?

Not strictly, but it helps with modern titles, background apps and streaming. The kit runs at DDR5-5600, which is a step below the 6000 speeds common in comparable builds.