Product comparison · 2 memory modules

Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4 vs Kingston Technology 512MB 133MHz Non-ECC CL3 DIMM

10specifications compared
7differ
3identical
3known for one product only

Key differences

The Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4 has 0.5 GB more internal memory than the Kingston Technology 512MB 133MHz Non-ECC CL3 DIMM (1 GB vs 0.5 GB). The Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4 has 16 -pin DIMM more memory form factor than the Kingston Technology 512MB 133MHz Non-ECC CL3 DIMM (184-pin DIMM vs 168-pin DIMM). The Kingston Technology 512MB 133MHz Non-ECC CL3 DIMM has 0.5 more CAS latency than the Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4 (3 vs 2.5). Only the Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4 has ECC. Memory layout (modules x size): 1 x 1 GB on the Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4, 1 x 0.5 GB on the Kingston Technology 512MB 133MHz Non-ECC CL3 DIMM.

Internal memory
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:1 GB
- 512MB 133MHz Non-ECC CL3 DIMM:0.5 GB
Memory layout (modules x size)
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:1 x 1 GB
- 512MB 133MHz Non-ECC CL3 DIMM:1 x 0.5 GB
Internal memory type
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:DDR
- 512MB 133MHz Non-ECC CL3 DIMM:SDR SDRAM
Memory form factor
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:184-pin DIMM
- 512MB 133MHz Non-ECC CL3 DIMM:168-pin DIMM
ECC
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:Yes
- 512MB 133MHz Non-ECC CL3 DIMM:No
CAS latency
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:2.5
- 512MB 133MHz Non-ECC CL3 DIMM:3
Memory voltage
- 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4:2.5 V
- 512MB 133MHz Non-ECC CL3 DIMM:3.3 V

Side by side

Differences highlightedShow differences only

Comparison of 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4, 512MB 133MHz Non-ECC CL3 DIMM
13 specifications	A Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM, x4 View product	B Kingston Technology 512MB 133MHz Non-ECC CL3 DIMM View product
Features7 differ
Internal memoryDiffers	1 GB	0.5 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 0.5 GB
Internal memory typeDiffers	DDR	SDR SDRAM
Memory form factorDiffers	184-pin DIMM	168-pin DIMM
ECCDiffers	Yes	No
CAS latencyDiffers	2.5	3
Memory bus	64 bit	64 bit
Check widthKnown for one	8 bit	Unknown — not stated by the source
Buffered memory typeKnown for one	Registered (buffered)	Unknown — not stated by the source
Memory voltageDiffers	2.5 V	3.3 V
Lead plating	Gold	Gold
Internal memory access speed	7.5 ns	7.5 ns
Component forKnown for one	Unknown — not stated by the source	PC/Server

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.

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