Product comparison · 2 memory modules

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

24specifications compared
11differ
13identical
9known for one product only

Key differences

Internal memory
- Memory Black 8GB DDR4 2666MHz:8 GB
- 4GB DDR4 2133MHz Module:4 GB
Memory layout (modules x size)
- Memory Black 8GB DDR4 2666MHz:1 x 8 GB
- 4GB DDR4 2133MHz Module:1 x 4 GB
ECC
- Memory Black 8GB DDR4 2666MHz:No
- 4GB DDR4 2133MHz Module:Yes
Memory bus
- Memory Black 8GB DDR4 2666MHz:64 bit
- 4GB DDR4 2133MHz Module:72 bit
Buffered memory type
- Memory Black 8GB DDR4 2666MHz:Unregistered (unbuffered)
- 4GB DDR4 2133MHz Module:Registered (buffered)
Memory ranking
- Memory Black 8GB DDR4 2666MHz:2
- 4GB DDR4 2133MHz Module:1
Module configuration
- Memory Black 8GB DDR4 2666MHz:1024M x 64
- 4GB DDR4 2133MHz Module:512M x 72
Row cycle time
- Memory Black 8GB DDR4 2666MHz:45 ns
- 4GB DDR4 2133MHz Module:47.05 ns

Side by side

Differences highlightedShow differences only

Comparison of Memory Black 8GB DDR4 2666MHz, 4GB DDR4 2133MHz Module
33 specifications	A HyperX Memory Black 8GB DDR4 2666MHz View product	B Kingston Technology 4GB DDR4 2133MHz Module View product
Features11 differ
Internal memoryDiffers	8 GB	4 GB
Memory layout (modules x size)Differs	1 x 8 GB	1 x 4 GB
Internal memory type	DDR4	DDR4
Component for	PC/Server	PC/Server
Memory form factor	288-pin DIMM	288-pin DIMM
ECCDiffers	No	Yes
CAS latency	15	15
Memory busDiffers	64 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory rankingDiffers	2	1
Memory voltage	1.2 V	1.2 V
Module configurationDiffers	1024M x 64	512M x 72
Row cycle timeDiffers	45 ns	47.05 ns
Refresh row cycle time	260 ns	260 ns
Row active timeDiffers	26.25 ns	33 ns
Memory typeDiffers	PC-21300	PC4-17000
Product colourDiffers	Black	Green
Lead plating	Gold	Gold
Memory clock speedKnown for one	2666 MHz	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	0 - 85 °C	0 - 85 °C
Storage temperature (T-T)	-55 - 100 °C	-55 - 100 °C
Softwareidentical
Windows operating systems supported	Yes	Yes
Linux operating systems supported	Yes	Yes
Packaging dataidentical
Package type	DIMM	DIMM
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	x8
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
Number of pins	288	288
Weight & dimensionsidentical
WidthKnown for one	133.3 mm	Unknown — not stated by the source
DepthKnown for one	7.1 mm	Unknown — not stated by the source
HeightKnown for one	34 mm	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.

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