Upgrading with another M.2 PCIe 4x SSD won’t affect your GPU’s PCIe 16x performance.
Upgrading with another M.2 PCIe 4x SSD won’t affect your GPU’s PCIe 16x performance.
Specs: CPU is Ryzen 9 3900x, motherboard ASUS X570 TUF-PLUS, GPU is ASUS RTX 3080 TUF OC, storage includes 500GB Kingston A2000 M.2 NVME SSD (installed on M.2_1), plus an additional 500GB Samsung 860 Evo SATA SSD. No other PCIe devices connected, no plans to add more soon. You're considering adding a 2TB XPG SX8200 Pro NVME SSD. Will your GPU still run at 16X speed?
The GPU maintains performance at X16, while the M.2 slot operates via the chipset tracks.
Primarily there are CPU sockets and chipset tracks. The B550 chipset supports Gen 3, while the X570 offers Gen 4, which explains why you can have multiple M.2 Gen 4 slots in the X570.
I’m fine with the system running at Gen 3 performance since the NVME SSD I plan to purchase is also Gen 3. My main concern is that it could deplete the PCIe lanes, potentially limiting my GPU’s maximum speed to 8x.