Kingston Technology 1 GB, DIMM 240-pin, DDR II, 667 MHz / PC2-5300, CL5, 1.8 V vs Kingston Technology 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC

Key differences

The Kingston Technology 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC has 3 GB more internal memory than the Kingston Technology 1 GB, DIMM 240-pin, DDR II, 667 MHz / PC2-5300, CL5, 1.8 V (4 GB vs 1 GB). The Kingston Technology 1 GB, DIMM 240-pin, DDR II, 667 MHz / PC2-5300, CL5, 1.8 V has 1 more CAS latency than the Kingston Technology 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC (5 vs 4). Only the Kingston Technology 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC has ECC.

• Internal memory
  • 1 GB, DIMM 240-pin, DDR II, 667 MHz / PC2-5300, CL5, 1.8 V:1 GB
  • 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC:4 GB
• ECC
  • 1 GB, DIMM 240-pin, DDR II, 667 MHz / PC2-5300, CL5, 1.8 V:No
  • 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC:Yes
• CAS latency
  • 1 GB, DIMM 240-pin, DDR II, 667 MHz / PC2-5300, CL5, 1.8 V:5
  • 4 GB(2 x 2GB), DIMM 240-pin, DDR II, 533 MHz, CL4, 1.8 V, 256M X 72, ECC:4