Which ssd to use for boot and media scratch disk?

[captnj]

Hi guys! My new mb has 2 pcie x4 nvme slots. I have two 512gb ssds. Plan to use one for boot, and one for a video editing scratch disk to hold raw files while I edit them.

One is a top end Samsung 970 pro, one is a pretty good Toshiba xg5 (maybe A bit slower than a 970 evo). Which one should I use for boot and which for media?
Thanks for any tips in advance.

 

[caddi daddi]

I'd use the 970 pro as scratch and toshiba as boot.

 

[Woomack]

I would use the one with longer warranty for more often writes so I guess Samsung as it has 10 years. As a boot drive it doesn't matter.