EFT and SPT respectively are very CPU bound, when i upgraded from a crappy AMD CPU to a 5800x3D (3 years ago) it boosted my FPS by like 20 or 30 percent man so i think the 9800x3D and 5080 will be more than enough.... RAM is another story. Please do yourself a favor and just get the 64 gigs, memory leaks are common in tarkov so having as much as possible always helps. The specs i use below get my game running around 60-85 FPS on streets with Live-like alt Donuts preset and 25 bots.
** Specs**
5800X3D
RTX 2070 Super
64 GB DDR4 (also enable XMP in bios)
