PCIE Lanes Dilema for the 5000 series CPU

[Mozauk]

I apologize in advanced if this is in the wrong area and/or this post is all over the place.

My current build is a 1st generation threadripper which I was wanting to upgrade to the new 5000 series CPU, specifically a 5900 or 5950x so that entails getting the CPU and a new motherboard. That is not the issue.

So now that I've laid out my current build and what I'm wanting to upgrade to A few weeks ago I purchased 3 Sabrent gen4 m.2

2tb gen 4
1tb gen 4
500gig gen 4

Now, the issue here unless i'm mistaken, and I may very well be or just not understood the new AMD 5000 cpu Lanes and how they work. They have 24 lanes where 4 are allocated to the chipset, 1 for the GPU (I also plan on getting the 6900XT) which would leave 4 lanes left for 1 M.2 to run at full speed.

The issue here would my other 2 gen 4 m.2 upon installing still get gen4 speeds as from my understanding they seem to be taken up by the chipset, GPU and one of the m.2s.

Can someone please shed some light here and let me know if I would lose any gen4 speed on the other m.2s i plan on installing?

If I won't get full gen 4.0 speed I was just thinking of going for the 3950x has his from my understanding has 40 lanes which would be enough to drive a GPU and 3 m.2 gen 4 drives.

Thanks for info and answers you can provide.

 

[Mozauk]

All ryzen inc 3950x have 24 lanes (16 to gpu, 4 to 1st nvme, 4 to chipset)
40 Lane pcie is threadripper

Why do you require 3x pcie 4 drives?

Hello and thanks for replying.

Because I want to add 3 gen 4 m.2s and a 6900xt I was concerned whether I would loose any speed on the GPU or the 3 M.2s. Basically what I'm asking would my 3 m.2s gen4 and GPU loose speed or be hampered in anyway like lanes dropping down. Sorry if I'm not making sense or I'm misunderstanding how this all works.

 

[Mozauk]

All ryzen inc 3950x have 24 lanes (16 to gpu, 4 to 1st nvme, 4 to chipset)
40 Lane pcie is threadripper

Why do you require 3x pcie 4 drives?

1. for the system drive 500gig
2. for my games drive 2tb
3. for my graphic design, ms office etc software 1tb

 

[Mozauk]

I said that twice already. I don’t think the OP is listening.

Sorry that I haven't got back sooner to this thread. I'm on 12-hour shifts and haven't had the chance to respond and thank everyone for replying.

Thanks to those who have taken the time to reply and help out I'm shifting towards getting the 3950x but still also looking at the 5950x when it becomes available. One thing I do know that I'll be getting is an x570 motherboard and a 3950x or 5950x along with an AMD GPU either the 6800XT or the 6900 XTX. Prefably the 6900XTX. Thanks again for taking the time out of their day to reply and guide me it's much appreciated.