Product comparison · 2 memory modules

Kingston Technology 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8 vs Kingston Technology Memory 512MB 100MHz ECC CL3 DIMM

Key differences

Memory form factor
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:184-pin DIMM
- Memory 512MB 100MHz ECC CL3 DIMM:168-pin DIMM
Memory voltage
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:2.6 V
- Memory 512MB 100MHz ECC CL3 DIMM:3.3 V

Differences highlightedShow differences only

Comparison of 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8, Memory 512MB 100MHz ECC CL3 DIMM
17 specifications	A Kingston Technology 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8 View product	B Kingston Technology Memory 512MB 100MHz ECC CL3 DIMM View product
Features2 differ
Internal memory	0.5 GB	0.5 GB
Memory layout (modules x size)Known for one	1 x 0.5 GB	Unknown — not stated by the source
Internal memory typeKnown for one	DDR	Unknown — not stated by the source
Memory form factorDiffers	184-pin DIMM	168-pin DIMM
ECC	Yes	Yes
CAS latency	3	3
Memory bus	72 bit	72 bit
Check width	8 bit	8 bit
Buffered memory typeKnown for one	Registered (buffered)	Unknown — not stated by the source
Memory voltageDiffers	2.6 V	3.3 V
Memory typeKnown for one	DDR	Unknown — not stated by the source
Lead plating	Gold	Gold
Internal memory access speedKnown for one	Unknown — not stated by the source	10 ns
Other featuresidentical
Chips organisationKnown for one	X8	Unknown — not stated by the source
Access timeKnown for one	Unknown — not stated by the source	9 ms
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	10 - 50 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%

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.