Product comparison · 2 memory modules

HyperX 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS vs Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP

8specifications compared
3differ
5identical
8known for one product only

Key differences

The HyperX 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS has 0.4 V more memory voltage than the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP (2.2 V vs 1.8 V). Only the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP has ECC. Memory layout (modules x size): 2 x 2 GB on the HyperX 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS, 1 x 4 GB on the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP.

Memory layout (modules x size)
- 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS:2 x 2 GB
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP:1 x 4 GB
ECC
- 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS:No
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP:Yes
Memory voltage
- 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS:2.2 V
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP:1.8 V

Side by side

Differences highlightedShow differences only

Comparison of 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS, 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP
16 specifications	A HyperX 4GB, 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM (Kit of 2), Tall HS View product	B Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 VLP View product
Features3 differ
Memory layout (modules x size)Differs	2 x 2 GB	1 x 4 GB
ECCDiffers	No	Yes
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory busKnown for one	64 bit	Unknown — not stated by the source
Buffered memory typeKnown for one	Unregistered (unbuffered)	Unknown — not stated by the source
Memory voltageDiffers	2.2 V	1.8 V
Module configurationKnown for one	256M X 64	Unknown — not stated by the source
Other featuresidentical
Bus clock rateKnown for one	1066 MHz	Unknown — not stated by the source
Error indicationKnown for one	No	Unknown — not stated by the source
Internal memoryKnown for one	4096 MB	Unknown — not stated by the source
Memory layoutKnown for one	2 x 2048 MB	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.

More memory module comparisons

All memory module comparisons