Product comparison · 2 memory modules

HyperX KHX8500S3ULK2/4G, 4GB 1066MHz DDR3 vs Kingston Technology 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4

Key differences

Internal memory
- KHX8500S3ULK2/4G, 4GB 1066MHz DDR3:4 GB
- 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4:2 GB
Internal memory type
- KHX8500S3ULK2/4G, 4GB 1066MHz DDR3:DDR3
- 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4:DDR2
Memory form factor
- KHX8500S3ULK2/4G, 4GB 1066MHz DDR3:204-pin SO-DIMM
- 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4:240-pin DIMM
ECC
- KHX8500S3ULK2/4G, 4GB 1066MHz DDR3:No
- 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4:Yes
Memory voltage
- KHX8500S3ULK2/4G, 4GB 1066MHz DDR3:1.5 V
- 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4:1.8 V

Differences highlightedShow differences only

Comparison of KHX8500S3ULK2/4G, 4GB 1066MHz DDR3, 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4
9 specifications	A HyperX KHX8500S3ULK2/4G, 4GB 1066MHz DDR3 View product	B Kingston Technology 2GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x4 View product
Features5 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (modules x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Internal memory typeDiffers	DDR3	DDR2
Memory form factorDiffers	204-pin SO-DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latency	5	5
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory voltageDiffers	1.5 V	1.8 V
Lead plating	Gold	Gold

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.