The best replacement for sdram is dimm.

The best alternatives to sdram are rated as following:
★★★★★  dimm
★★★★★  ddr
★★★★  sodimm
★★★  dram
★★  ram
★★  edo
★★  ddr2
★★  ddram
★★  ddr ram
★★  ddr3
★  rdram
★  vram
★  sdram
★  ddr3l
★  sram
  fb-dimm
  udimm
  ddr sdram
  ddr1
  ddr memory
  ddr2 sdram
  dimm ram
  sodimm ram
  edo ram

Your alternative for sdram is not listed? Suggest!
Speaking about sdram, one probably shouldn't forget about ddr ram.

Other search terms related to sdram and their ratings are:
★★★★★ ddr ram
★★ rdram
You have in mind a companion for sdram and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of sdram in all years. Click on graph for more.
sdram
dimm
ddr