becauseisherenow :
I have optiplex 780 (Dell 200DY Optiplex 780 Motherboard)
which one is recommended and better ?
what is the diffrence in performance?
nt:I use 2GB 2Rx8 PC3
1R and 2R denote the number of ranks per DIMM. Each rank is a set of DRAM chips that share a common chip select. For a given channel, only one rank can be selected at a time. There is a limit to the number of ranks that can be installed on a channel before buffering becomes necessary. For consumer motherboards that do not support buffering, the limit is 4 ranks per channel. Consumer motherboards have at most 2 DIMM slots per channel, and consumer DIMMs have at most 2 ranks per DIMM, so its hard to violate this limitation unintentionally.
An 8GiB 2R DIMM is identical in...