DDR5 Vs DDR4 RAM: Everything You Need To Know - TechLog360
Keep reading as we will also talk about How RAM works, and how to identify RAM Generations like DDR2, DDR3, DDR4, etc. ... You can place DDR3 RAM in DDR3 Slot only.
Can DDR5 Motherboards Use DDR4 RAM? - ComputerCity
If we discuss which type of RAM is best then the answer is DDR3 and DDR4 are the two best types of RAMS that can be used in the computer.
NVIDIA H100 PCIe GPU
If you want to put an Arduino in a regular PCIe slot, you can use the SMBus lines, which are just I²C with additional constraints.