sabrent Gen 3 and Gen 4 nvm.e SSD

[ragnarmarie]

Hello everyone! I just joined here to ask a question that nobody has an answer to apparently :')

 

So I recently bought a Sabrent Rocket 4 Gen 4 ssd and I already have a Samsung 960 EVO Gen 3 Nvme ssd. My motherboard is Asus TUF x570 Gaming Plus.

Basically my question is:

 

If I install both of them together assuming I have a Ryzen 3700x installed or so. Do I get each speed respectively or do I get the lowest out of both (Like RAM modules)?

If I can get their actual speeds, do I have to change something in the bios?

 

I recently saw LTT's new video titled "My CRINGIEST PC Build EVER" and they installed a Gen 4 and  Gen 3 SSD, could that be a simple mistake where they're gonna run on the lowest speed (GEN3) or do they actually run on different speeds?

 

Thank you in advance!

[Shimejii]

You get the drives rated speed. 

[GhostRoadieBL]

they are independent devices, similar to running an NVME SSD and your graphics card will not effect each other's interface speed the drives won't effect each other. 

[ragnarmarie]

19 minutes ago, GhostRoadieBL said:

they are independent devices, similar to running an NVME SSD and your graphics card will not effect each other's interface speed the drives won't effect each other. 

So that means as soon as I get a 3rd Gen Ryzen, the Gen4 SSD will run at its highest rated speed when possible?

Interesting, I guess reddit was wrong lmao. They said that it works like RAM modules where it would run at the lowest rated speed.

[dizmo]

6 minutes ago, ragnarmarie said:

So that means as soon as I get a 3rd Gen Ryzen, the Gen4 SSD will run at its highest rated speed when possible?

Interesting, I guess reddit was wrong lmao. They said that it works like RAM modules where it would run at the lowest rated speed.

That depends on PCIe lanes and how your board is going to divide them as you populate more slots.

[GhostRoadieBL]

1 hour ago, ragnarmarie said:

highest rated speed when possible

yes, assuming the CPU has enough PCIe bandwidth to distribute the available lanes to each device. 

each PCIe 4.0 lane has 1.969 GB/s of "transfer speed" available (when fully saturated), NVME runs with 4x of these lanes so even the fastest SSD controllers can't quite fully saturate all 4 lanes (they will get close with some of the newest pro drives) 

your graphics card can have up 16x lanes but the CPU and chipset can allocate less lanes and shuffle lanes to what needs them or will use the most transfer speed so even huge bandwidth 3090's will only use 8x lanes or sometimes 16x lanes when they are absolutely maxed transferring data between your CPU and GPU.