PCIe vs PCIe RTX 4090 Gaming Benchmarks 14

can you connect pcie 4 0 in 3 0 slot   Dan can you use ddr5 in ddr4 slot

Yes, it'll be perfectly compatible with gen PCIE slot Upvote

It might be possible The length may need to be shorter The only thing stopping gen 4 speed is the quality of the cable PCIe does link Given your graphics card's specs, the max speed is 14 Gbps, which is well within the reach of what PCIe can handle They also just specify

to slot All PCIe Generations slots and slots are backward compatible so there is no need to worry about purchasing the wrong expansion card or NVMe SSD But you You can insert a PCIe SSD card into a motherboard with PCIe slots to make full use of the higher bandwidth of the Gen 4 slot