Product comparison · 2 memory modules

Acer 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920) vs Buffalo 512MB DDR400 Select DIMM 184pin PC3200 CL3.0

Key differences

Internal memory
- 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920):4 GB
- 512MB DDR400 Select DIMM 184pin PC3200 CL3.0:0.5 GB
Memory form factor
- 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920):200-pin SO-DIMM
- 512MB DDR400 Select DIMM 184pin PC3200 CL3.0:184-pin DIMM
ECC
- 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920):Yes
- 512MB DDR400 Select DIMM 184pin PC3200 CL3.0:No
Memory clock speed
- 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920):667 MHz
- 512MB DDR400 Select DIMM 184pin PC3200 CL3.0:400 MHz

Differences highlightedShow differences only

Comparison of 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920), 512MB DDR400 Select DIMM 184pin PC3200 CL3.0
9 specifications	A Acer 4GB FBD Upgrade kit (2x2GB) DDR2 667, ECC (G540-R520-R720-R920)View product	B Buffalo 512MB DDR400 Select DIMM 184pin PC3200 CL3.0 View product
Features4 differ
Internal memoryDiffers	4 GB	0.5 GB
Memory layout (modules x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Internal memory typeKnown for one	DDR2	Unknown — not stated by the source
Memory form factorDiffers	200-pin SO-DIMM	184-pin DIMM
ECCDiffers	Yes	No
Memory clock speedDiffers	667 MHz	400 MHz
CAS latencyKnown for one	Unknown — not stated by the source	3
Memory voltageKnown for one	Unknown — not stated by the source	2.6 V
Other featuresidentical
Number of pinsKnown for one	240	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.