Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 vs Kingston Technology Memory 256MB 400MHz DDR2 CL3 SODIMM

Key differences

The Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 has 1.75 GB more internal memory than the Kingston Technology Memory 256MB 400MHz DDR2 CL3 SODIMM (2 GB vs 0.25 GB). The Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 has 8 bit more memory bus than the Kingston Technology Memory 256MB 400MHz DDR2 CL3 SODIMM (72 bit vs 64 bit). The Kingston Technology Memory 256MB 400MHz DDR2 CL3 SODIMM has 4 bit more check width than the Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 (8 bit vs 4 bit). Only the Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 has ECC. Memory form factor: 240-pin DIMM on the Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4, 200-pin SO-DIMM on the Kingston Technology Memory 256MB 400MHz DDR2 CL3 SODIMM.

• Internal memory
  • 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:2 GB
  • Memory 256MB 400MHz DDR2 CL3 SODIMM:0.25 GB
• Memory form factor
  • 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:240-pin DIMM
  • Memory 256MB 400MHz DDR2 CL3 SODIMM:200-pin SO-DIMM
• ECC
  • 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:Yes
  • Memory 256MB 400MHz DDR2 CL3 SODIMM:No
• Memory bus
  • 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:72 bit
  • Memory 256MB 400MHz DDR2 CL3 SODIMM:64 bit
• Check width
  • 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:4 bit
  • Memory 256MB 400MHz DDR2 CL3 SODIMM:8 bit