Product comparison · 2 memory modules

Kingston Technology 16GB(4 x 4GB), 1066MHz, DDR3, ECC vs Kingston Technology 4GB, 1066MHz, DDR3, ECC w/ thermal sensor

Key differences

Internal memory
- 16GB(4 x 4GB), 1066MHz, DDR3, ECC:16 GB
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:4 GB
Memory layout (modules x size)
- 16GB(4 x 4GB), 1066MHz, DDR3, ECC:4 x 4 GB
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:1 x 4 GB
Internal memory
- 16GB(4 x 4GB), 1066MHz, DDR3, ECC:16384 MB
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:4096 MB
Memory layout
- 16GB(4 x 4GB), 1066MHz, DDR3, ECC:4 x 4096 MB
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:1 x 4096 MB

Differences highlightedShow differences only

Comparison of 16GB(4 x 4GB), 1066MHz, DDR3, ECC, 4GB, 1066MHz, DDR3, ECC w/ thermal sensor
20 specifications	A Kingston Technology 16GB(4 x 4GB), 1066MHz, DDR3, ECC View product	B Kingston Technology 4GB, 1066MHz, DDR3, ECC w/ thermal sensor View product
Features2 differ
Internal memoryDiffers	16 GB	4 GB
Memory layout (modules x size)Differs	4 x 4 GB	1 x 4 GB
Memory rankingKnown for one	Unknown — not stated by the source	2
Other features2 differ
CompatibilityKnown for one	Unknown — not stated by the source	333-0880 (Apple); MB982G/A (Apple)
Internal memoryDiffers	16384 MB	4096 MB
Memory layoutDiffers	4 x 4096 MB	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.