Which exact video card should I buy for copying 4k?

[LloydS]

Moved to UHD Copy/Ripper/Creator/Converter/Drive Tool

[Mona]

★ For the 4K HW Acceleration to work, you need:
Either the CPUs from Intel Kaby Lake series and above;
Or, the video cards from NVIDIA GeForce GTX 1050 series and above

[AcIDc0r3]

All Ryzen based CPU's are supported as well. I have the Ryzen 1800X and UHD movies work like a champ.