Product comparison · 2 memory modules

HyperX 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP vs HyperX DDR3 1800MHz 2GB-kit

Key differences

Internal memory
- 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP:4 GB
- DDR3 1800MHz 2GB-kit:2 GB
Memory layout (modules x size)
- 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP:2 x 2 GB
- DDR3 1800MHz 2GB-kit:2 x 1 GB
Memory form factor
- 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP:204-pin SO-DIMM
- DDR3 1800MHz 2GB-kit:240-pin DIMM
CAS latency
- 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP:5
- DDR3 1800MHz 2GB-kit:8
Memory clock speed
- 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP:1066 MHz
- DDR3 1800MHz 2GB-kit:1800 MHz
Memory voltage
- 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP:1.5 V
- DDR3 1800MHz 2GB-kit:1.9 V

Differences highlightedShow differences only

Comparison of 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP, DDR3 1800MHz 2GB-kit
10 specifications	A HyperX 4GB, 1066MHz, DDR3, Non-ECC, Ultra LL, CL5 (5-5-5-15), SODIMM (Kit of 2), XMP View product	B HyperX DDR3 1800MHz 2GB-kit View product
Features6 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (modules x size)Differs	2 x 2 GB	2 x 1 GB
Internal memory type	DDR3	DDR3
Memory form factorDiffers	204-pin SO-DIMM	240-pin DIMM
ECC	No	No
CAS latencyDiffers	5	8
Memory clock speedDiffers	1066 MHz	1800 MHz
Memory voltageDiffers	1.5 V	1.9 V
Lead platingKnown for one	Gold	Unknown — not stated by the source
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)

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.