Product comparison · 2 memory modules

HyperX 1GB 400MHz DDR Non-ECC CL2.5 DIMM vs Kingston Technology 1GB 533MHz DDR2 ECC CL4 DIMM

Key differences

Internal memory type
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:DDR
- 1GB 533MHz DDR2 ECC CL4 DIMM:DDR2
Memory form factor
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:184-Pin DIMM
- 1GB 533MHz DDR2 ECC CL4 DIMM:240-pin DIMM
ECC
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:No
- 1GB 533MHz DDR2 ECC CL4 DIMM:Yes
CAS latency
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:2
- 1GB 533MHz DDR2 ECC CL4 DIMM:4
Memory bus
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:64 bit
- 1GB 533MHz DDR2 ECC CL4 DIMM:72 bit
Memory voltage
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:2.6 V
- 1GB 533MHz DDR2 ECC CL4 DIMM:1.8 V

Differences highlightedShow differences only

Comparison of 1GB 400MHz DDR Non-ECC CL2.5 DIMM, 1GB 533MHz DDR2 ECC CL4 DIMM
15 specifications	A HyperX 1GB 400MHz DDR Non-ECC CL2.5 DIMM View product	B Kingston Technology 1GB 533MHz DDR2 ECC CL4 DIMM View product
Features6 differ
Internal memory	1 GB	1 GB
Internal memory typeDiffers	DDR	DDR2
Memory form factorDiffers	184-Pin DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	2	4
Memory clock speedKnown for one	400 MHz	Unknown — not stated by the source
Memory busDiffers	64 bit	72 bit
Check width	8 bit	8 bit
Memory voltageDiffers	2.6 V	1.8 V
Lead plating	Gold	Gold
Internal memory access speedKnown for one	5 ns	Unknown — not stated by the source
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 1 GB
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 70 °C	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.