Product comparison · 2 memory modules

Kingston Technology 32GB (4x 8GB), DDR4 vs Kingston Technology KVR21N15D8/16BK memory module

Key differences

Internal memory
- 32GB (4x 8GB), DDR4:32 GB
- KVR21N15D8/16BK memory module:16 GB
Memory layout (modules x size)
- 32GB (4x 8GB), DDR4:4 x 8 GB
- KVR21N15D8/16BK memory module:1 x 16 GB
Buffered memory type
- 32GB (4x 8GB), DDR4:Registered (buffered)
- KVR21N15D8/16BK memory module:Unregistered (unbuffered)
Memory voltage
- 32GB (4x 8GB), DDR4:1.2,1.5 V
- KVR21N15D8/16BK memory module:1.2 V
Row cycle time
- 32GB (4x 8GB), DDR4:47.05 ns
- KVR21N15D8/16BK memory module:46.5 ns
Refresh row cycle time
- 32GB (4x 8GB), DDR4:260 ns
- KVR21N15D8/16BK memory module:350 ns

Differences highlightedShow differences only

Comparison of 32GB (4x 8GB), DDR4, KVR21N15D8/16BK
22 specifications	A Kingston Technology 32GB (4x 8GB), DDR4 View product	B Kingston Technology KVR21N15D8/16BK memory module Model KVR21N15D8/16BK View product
Features6 differ
Internal memoryDiffers	32 GB	16 GB
Memory layout (modules x size)Differs	4 x 8 GB	1 x 16 GB
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory rankingKnown for one	2	Unknown — not stated by the source
Memory voltageDiffers	1.2,1.5 V	1.2 V
Module configurationKnown for one	1024M x 72	Unknown — not stated by the source
Row cycle timeDiffers	47.05 ns	46.5 ns
Refresh row cycle timeDiffers	260 ns	350 ns
SPD profileKnown for one	Yes	Unknown — not stated by the source
Memory bandwidth (max)Known for one	Unknown — not stated by the source	8 GB/s
Product colourKnown for one	Unknown — not stated by the source	Black, Green
Weight & dimensionsidentical
HeightKnown for one	Unknown — not stated by the source	31 mm

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.