Product comparison · 2 memory modules

HyperX Black 8GB DDR4 2666MHz Kit vs Kingston Technology 4GB DDR4 2133MHz Module

23specifications compared
8differ
15identical
15known for one product only

Key differences

The HyperX Black 8GB DDR4 2666MHz Kit has 4 GB more internal memory than the Kingston Technology 4GB DDR4 2133MHz Module (8 GB vs 4 GB). The HyperX Black 8GB DDR4 2666MHz Kit has 1 x 4 GB more memory layout (modules x size) than the Kingston Technology 4GB DDR4 2133MHz Module (2 x 4 GB vs 1 x 4 GB). The Kingston Technology 4GB DDR4 2133MHz Module has 2.05 ns more row cycle time than the HyperX Black 8GB DDR4 2666MHz Kit (47.05 ns vs 45 ns). Buffered memory type: Unregistered (unbuffered) on the HyperX Black 8GB DDR4 2666MHz Kit, Registered (buffered) on the Kingston Technology 4GB DDR4 2133MHz Module. Module configuration: 512M x 64 on the HyperX Black 8GB DDR4 2666MHz Kit, 512M x 72 on the Kingston Technology 4GB DDR4 2133MHz Module.

Internal memory
- Black 8GB DDR4 2666MHz Kit:8 GB
- 4GB DDR4 2133MHz Module:4 GB
Memory layout (modules x size)
- Black 8GB DDR4 2666MHz Kit:2 x 4 GB
- 4GB DDR4 2133MHz Module:1 x 4 GB
Buffered memory type
- Black 8GB DDR4 2666MHz Kit:Unregistered (unbuffered)
- 4GB DDR4 2133MHz Module:Registered (buffered)
Module configuration
- Black 8GB DDR4 2666MHz Kit:512M x 64
- 4GB DDR4 2133MHz Module:512M x 72
Row cycle time
- Black 8GB DDR4 2666MHz Kit:45 ns
- 4GB DDR4 2133MHz Module:47.05 ns
Row active time
- Black 8GB DDR4 2666MHz Kit:26.25 ns
- 4GB DDR4 2133MHz Module:33 ns
Memory type
- Black 8GB DDR4 2666MHz Kit:PC-21300
- 4GB DDR4 2133MHz Module:PC4-17000
Product colour
- Black 8GB DDR4 2666MHz Kit:Black
- 4GB DDR4 2133MHz Module:Green

Side by side

Differences highlightedShow differences only

Comparison of Black 8GB DDR4 2666MHz Kit, 4GB DDR4 2133MHz Module
38 specifications	A HyperX Black 8GB DDR4 2666MHz Kit View product	B Kingston Technology 4GB DDR4 2133MHz Module View product
Features8 differ
Internal memoryDiffers	8 GB	4 GB
Memory layout (modules x size)Differs	2 x 4 GB	1 x 4 GB
Memory clock speedKnown for one	2666 MHz	Unknown — not stated by the source
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Module configurationDiffers	512M x 64	512M x 72
Row cycle timeDiffers	45 ns	47.05 ns
Row active timeDiffers	26.25 ns	33 ns
Intel Extreme Memory Profile (XMP)Known for one	Yes	Unknown — not stated by the source
SPD profileKnown for one	Yes	Unknown — not stated by the source
Compatible chipsetsKnown for one	Intel® X99	Unknown — not stated by the source
Memory typeDiffers	PC-21300	PC4-17000
Product colourDiffers	Black	Green
Cooling typeKnown for one	Heatsink	Unknown — not stated by the source
ECCKnown for one	Unknown — not stated by the source	Yes
Memory busKnown for one	Unknown — not stated by the source	72 bit
Softwareidentical
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	133.3 mm	Unknown — not stated by the source
DepthKnown for one	7.08 mm	Unknown — not stated by the source
HeightKnown for one	34 mm	Unknown — not stated by the source
Other featuresidentical
Bus clock rateKnown for one	Unknown — not stated by the source	2133 MHz
Error indicationKnown for one	Unknown — not stated by the source	ECC
Internal memoryKnown for one	Unknown — not stated by the source	4096 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 4096 MB

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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