Product comparison · 2 memory modules

Kingston Technology 256MB 133MHz ECC Registered CL3 DIMM vs Kingston Technology 512MB 266MHz DDR Non-ECC CL2 DIMM

Key differences

Internal memory
- 256MB 133MHz ECC Registered CL3 DIMM:0.25 GB
- 512MB 266MHz DDR Non-ECC CL2 DIMM:0.5 GB
Memory form factor
- 256MB 133MHz ECC Registered CL3 DIMM:168-pin DIMM
- 512MB 266MHz DDR Non-ECC CL2 DIMM:184-pin DIMM
ECC
- 256MB 133MHz ECC Registered CL3 DIMM:Yes
- 512MB 266MHz DDR Non-ECC CL2 DIMM:No
CAS latency
- 256MB 133MHz ECC Registered CL3 DIMM:3
- 512MB 266MHz DDR Non-ECC CL2 DIMM:2
Memory voltage
- 256MB 133MHz ECC Registered CL3 DIMM:3.3 V
- 512MB 266MHz DDR Non-ECC CL2 DIMM:2.5 V

Differences highlightedShow differences only

Comparison of 256MB 133MHz ECC Registered CL3 DIMM, 512MB 266MHz DDR Non-ECC CL2 DIMM
12 specifications	A Kingston Technology 256MB 133MHz ECC Registered CL3 DIMM View product	B Kingston Technology 512MB 266MHz DDR Non-ECC CL2 DIMM View product
Features5 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 0.5 GB
Internal memory typeKnown for one	Unknown — not stated by the source	DDR
Memory form factorDiffers	168-pin DIMM	184-pin DIMM
ECCDiffers	Yes	No
CAS latencyDiffers	3	2
Memory bus	64 bit	64 bit
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
Memory voltageDiffers	3.3 V	2.5 V
Lead plating	Gold	Gold
Check widthKnown for one	8 bit	Unknown — not stated by the source
Internal memory access speedKnown for one	7.5 ns	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.