2-Power 2GB DDR2 DIMM vs 2-Power 8GB DDR4 DIMM

Key differences

• Internal memory
  • 2GB DDR2 DIMM:2 GB
  • 8GB DDR4 DIMM:8 GB
• Memory layout (modules x size)
  • 2GB DDR2 DIMM:1 x 2 GB
  • 8GB DDR4 DIMM:1 x 8 GB
• Internal memory type
  • 2GB DDR2 DIMM:DDR2
  • 8GB DDR4 DIMM:DDR4
• Memory form factor
  • 2GB DDR2 DIMM:240-pin DIMM
  • 8GB DDR4 DIMM:288-pin DIMM
• ECC
  • 2GB DDR2 DIMM:No
  • 8GB DDR4 DIMM:Yes
• CAS latency
  • 2GB DDR2 DIMM:6
  • 8GB DDR4 DIMM:15
• Memory clock speed
  • 2GB DDR2 DIMM:800 MHz
  • 8GB DDR4 DIMM:2133 MHz
• Buffered memory type
  • 2GB DDR2 DIMM:Unregistered (unbuffered)
  • 8GB DDR4 DIMM:Registered (buffered)