Product comparison · 2 memory modules

Kingston Technology 4GB DDR4 2133MHz vs Kingston Technology ValueRAM KVR21N15/8 memory module

17specifications compared
6differ
11identical
10known for one product only

Key differences

Internal memory
- 4GB DDR4 2133MHz:4 GB
- ValueRAM KVR21N15/8 memory module:8 GB
Memory layout (modules x size)
- 4GB DDR4 2133MHz:1 x 4 GB
- ValueRAM KVR21N15/8 memory module:1 x 8 GB
Memory ranking
- 4GB DDR4 2133MHz:1
- ValueRAM KVR21N15/8 memory module:2
Module configuration
- 4GB DDR4 2133MHz:512M x 8
- ValueRAM KVR21N15/8 memory module:1G X 64
Internal memory
- 4GB DDR4 2133MHz:4096 MB
- ValueRAM KVR21N15/8 memory module:8192 MB
Memory layout
- 4GB DDR4 2133MHz:1 x 4096 MB
- ValueRAM KVR21N15/8 memory module:1 x 8192 MB

Side by side

Differences highlightedShow differences only

Comparison of 4GB DDR4 2133MHz, KVR21N15/8
27 specifications	A Kingston Technology 4GB DDR4 2133MHz View product	B Kingston Technology ValueRAM KVR21N15/8 memory module Model KVR21N15/8 View product
Features4 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	1 x 8 GB
Internal memory type	DDR4	DDR4
Component for	PC/Server	PC/Server
Memory form factor	288-pin DIMM	288-pin DIMM
ECCKnown for one	No	Unknown — not stated by the source
CAS latency	15	15
Memory bus	64 bit	64 bit
Buffered memory type	Unregistered (unbuffered)	Unregistered (unbuffered)
Memory rankingDiffers	1	2
Memory voltage	1.2 V	1.2 V
Module configurationDiffers	512M x 8	1G X 64
Row cycle timeKnown for one	46.5 ns	Unknown — not stated by the source
Refresh row cycle timeKnown for one	260 ns	Unknown — not stated by the source
Row active timeKnown for one	33 ns	Unknown — not stated by the source
SPD profileKnown for one	Yes	Unknown — not stated by the source
Product colourKnown for one	Black, Green	Unknown — not stated by the source
Lead plating	Gold	Gold
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 85 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-55 - 100 °C	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	133.3 mm	Unknown — not stated by the source
HeightKnown for one	31.2 mm	Unknown — not stated by the source
Other features2 differ
Chips organisation	X8	X8
Bus clock rate	2133 MHz	2133 MHz
Error indication	No	No
Internal memoryDiffers	4096 MB	8192 MB
Memory layoutDiffers	1 x 4096 MB	1 x 8192 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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