Kingston Technology 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2) vs Kingston Technology 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4

Key differences

• Memory layout (modules x size)
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):2 x 2 GB
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:1 x 4 GB
• Internal memory type
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):DDR3
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:DDR2
• ECC
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):No
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:Yes
• CAS latency
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):7
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:5
• Memory bus
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):64 bit
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:72 bit
• Buffered memory type
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):Unregistered (unbuffered)
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:Registered (buffered)
• Module configuration
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):256M X 64
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:512M X 72
• Memory type
  • 4GB 1066MHz DDR3 Non-ECC CL7 DIMM (Kit of 2):DDR3
  • 4GB 800MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:DDR2