Do I have to buy the same brand of RAM as I have in my desktop now?

DDR5 RAM has a higher base speed, supports higher-capacity DIMM modules , and consumes less power for the same performance specs as DDR4

No, the slots are physically incompatible so you can't accidentally insert DDR4 into a DDR5 slot Upvote 5 Downvote Award 0 awards

ddr4 in ddr5 slot DDR4 adds four new Bank Groups technology Each bank group has the feature of singlehanded operation DDR4 can process 4 data within a clock cycle, so DDR4's

ddr4 vs ddr5 slot No, this implies DDR4 and DDR5 are not the same and there are no different RAM slots on a motherboard