HP 16GB DDR2-400 vs HP 4GB DDR2-667

Key differences

The HP 16GB DDR2-400 has 12 GB more internal memory than the HP 4GB DDR2-667 (16 GB vs 4 GB). The HP 4GB DDR2-667 has 267 MHz more memory clock speed than the HP 16GB DDR2-400 (667 MHz vs 400 MHz). Memory layout (modules x size): 8 x 2 GB on the HP 16GB DDR2-400, 1 x 4 GB on the HP 4GB DDR2-667.

• Internal memory
  • 16GB DDR2-400:16 GB
  • 4GB DDR2-667:4 GB
• Memory layout (modules x size)
  • 16GB DDR2-400:8 x 2 GB
  • 4GB DDR2-667:1 x 4 GB
• Memory clock speed
  • 16GB DDR2-400:400 MHz
  • 4GB DDR2-667:667 MHz