Product comparison · 2 memory modules

HyperX 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC vs Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8

Key differences

Internal memory
- 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC:2 GB
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8:4 GB
Memory layout (modules x size)
- 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC:2 x 1 GB
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8:1 x 4 GB
Memory form factor
- 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC:200-pin SO-DIMM
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8:240-pin DIMM
ECC
- 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC:No
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8:Yes
CAS latency
- 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC:4
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8:5

Differences highlightedShow differences only

Comparison of 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC, 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8
12 specifications	A HyperX 2GB, DDR2, 800MHZ, 128M X 64, Non-ECC View product	B Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8 View product
Features5 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	2 x 1 GB	1 x 4 GB
Internal memory type	DDR2	DDR2
Memory form factorDiffers	200-pin SO-DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	4	5
Memory busKnown for one	Unknown — not stated by the source	72 bit
Buffered memory typeKnown for one	Unknown — not stated by the source	Registered (buffered)
Memory voltageKnown for one	Unknown — not stated by the source	1.8 V
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Lead plating	Gold	Gold
Memory clock speedKnown for one	800 MHz	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.