Need help on a threadripper build

[Jad44]

Hi guys, my build currently has a threadripper 2990wx on an MSI X399 sli plus with 128gb of corsair vengeance lpx 3200mhz C16.

I'm only using an asus rx vega 56 8gb as the gpu cuz I don't really need a powerful one.

My current ssd is the samsung 970 pro 1tb and with the new pcie 4.0 coming out I wanna know if it's better to upgrade cpu, motherboard, ssd (and possibly ram if it has a huge performance impact on the cpu performance) to a 3rd gen threadripper and a much faster ssd or if it is possible to make an other build with much cheaper components that could help me out.

I'm all about speed and the work I use this pc for makes the cpu and ssd get to 100% almost all the time and uses almost all the ram available so basically I thought the ssd might be a bottleneck here and if it's possible to make an other build with, say, a 3700x with a pcie 4.0 ssd for storage, then connect these two and (theoretically) use the higher speed ssd for my main pc without having to upgrade it all.

I work on a software called faro scene if that's needed too and the cpu is watercooled with an nzxt kraken x72, the psu is the corsair rm1000i.

Thanks.

[Spakes]

There's no fully tested PCIe 4.0 NVMe SSDs, so I'd suggest you use safer route and stay on what you have rn. That drop in CPU perfomance isn't worth it.