Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM vs Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8

Key differences

The Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM has 2 more CAS latency than the Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8 (7 vs 5). The Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8 has 0.3 V more memory voltage than the Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM (1.8 V vs 1.5 V). Memory layout (modules x size): 1 x 1 GB on the Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM, 2 x 4 GB on the Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8. Internal memory type: DDR3 on the Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM, DDR2 on the Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8. Buffered memory type: Unregistered (unbuffered) on the Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM, Registered (buffered) on the Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8.

• Memory layout (modules x size)
  • 1GB 1066MHz DDR3 ECC CL7 DIMM:1 x 1 GB
  • 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8:2 x 4 GB
• Internal memory type
  • 1GB 1066MHz DDR3 ECC CL7 DIMM:DDR3
  • 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8:DDR2
• CAS latency
  • 1GB 1066MHz DDR3 ECC CL7 DIMM:7
  • 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8:5
• Buffered memory type
  • 1GB 1066MHz DDR3 ECC CL7 DIMM:Unregistered (unbuffered)
  • 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8:Registered (buffered)
• Memory voltage
  • 1GB 1066MHz DDR3 ECC CL7 DIMM:1.5 V
  • 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8:1.8 V
• Memory type
  • 1GB 1066MHz DDR3 ECC CL7 DIMM:DDR3
  • 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank x8:DDR2