Kingston Technology 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2) vs Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8

Key differences

The Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8 has 2 GB more internal memory than the Kingston Technology 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2) (4 GB vs 2 GB). The Kingston Technology 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2) has 2 more CAS latency than the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8 (7 vs 5). The Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8 has 0.3 V more memory voltage than the Kingston Technology 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2) (1.8 V vs 1.5 V). Memory layout (modules x size): 2 x 1 GB on the Kingston Technology 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2), 1 x 4 GB on the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8. Internal memory type: DDR3 on the Kingston Technology 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2), DDR2 on the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8.

• Internal memory
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):2 GB
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:4 GB
• Memory layout (modules x size)
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):2 x 1 GB
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:1 x 4 GB
• Internal memory type
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):DDR3
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:DDR2
• CAS latency
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):7
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:5
• Buffered memory type
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):Unregistered (unbuffered)
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:Registered (buffered)
• Memory voltage
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):1.5 V
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:1.8 V
• Memory type
  • 2GB 1066MHz DDR3 ECC CL7 DIMM (Kit of 2):DDR3
  • 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:DDR2