Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A57 + D221 vs Lenovo ThinkCentre M57 + ThinkVision L1900p

91specifications compared
16differ
75identical
16known for one product only

Key differences

The Lenovo ThinkCentre A57 + D221 has 1 GB more internal memory than the Lenovo ThinkCentre M57 + ThinkVision L1900p (2 GB vs 1 GB). The Lenovo ThinkCentre A57 + D221 has 1 x 1 GB more memory layout (slots x size) than the Lenovo ThinkCentre M57 + ThinkVision L1900p (2 x 1 GB vs 1 x 1 GB). The Lenovo ThinkCentre M57 + ThinkVision L1900p has 2 more USB 2.0 ports quantity than the Lenovo ThinkCentre A57 + D221 (8 vs 6). Networking features: g on the Lenovo ThinkCentre A57 + D221, Gigabit Ethernet on the Lenovo ThinkCentre M57 + ThinkVision L1900p. Display diagonal: 55.9 cm (22") on the Lenovo ThinkCentre A57 + D221, 48.3 cm (19") on the Lenovo ThinkCentre M57 + ThinkVision L1900p.

Internal memory
- ThinkCentre A57 + D221:2 GB
- ThinkCentre M57 + ThinkVision L1900p:1 GB
Memory layout (slots x size)
- ThinkCentre A57 + D221:2 x 1 GB
- ThinkCentre M57 + ThinkVision L1900p:1 x 1 GB
Networking features
- ThinkCentre A57 + D221:g
- ThinkCentre M57 + ThinkVision L1900p:Gigabit Ethernet
USB 2.0 ports quantity
- ThinkCentre A57 + D221:6
- ThinkCentre M57 + ThinkVision L1900p:8
Power supply
- ThinkCentre A57 + D221:310 W
- ThinkCentre M57 + ThinkVision L1900p:225 W
Display diagonal
- ThinkCentre A57 + D221:55.9 cm (22")
- ThinkCentre M57 + ThinkVision L1900p:48.3 cm (19")
Display resolution
- ThinkCentre A57 + D221:1680 x 1050 pixels
- ThinkCentre M57 + ThinkVision L1900p:1280 x 1024 pixels
Contrast ratio (typical)
- ThinkCentre A57 + D221:700:1
- ThinkCentre M57 + ThinkVision L1900p:800:1

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A57 + D221, ThinkCentre M57 + ThinkVision L1900p
107 specifications	A Lenovo ThinkCentre A57 + D221 View product	B Lenovo ThinkCentre M57 + ThinkVision L1900p View product
Memory2 differ
Internal memoryDiffers	2 GB	1 GB
Memory layout (slots x size)Differs	2 x 1 GB	1 x 1 GB
Storageidentical
Floppy drive installedKnown for one	Unknown — not stated by the source	No
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
Network1 differ
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Wi-FiKnown for one	Unknown — not stated by the source	No
Networking featuresDiffers	g	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	6	8
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
DVI portKnown for one	Unknown — not stated by the source	No
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Power1 differ
Power supplyDiffers	310 W	225 W
Power requirementsKnown for one	110 - 220V, 50/ 60Hz	Unknown — not stated by the source
Display6 differ
Display diagonalDiffers	55.9 cm (22")	48.3 cm (19")
Display resolutionDiffers	1680 x 1050 pixels	1280 x 1024 pixels
Contrast ratio (typical)Differs	700:1	800:1
Display brightnessDiffers	300 cd/m²	250 cd/m²
Viewing angle, horizontalDiffers	176°	160°
Viewing angle, verticalDiffers	176°	160°
DisplayKnown for one	TFT	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Realtek ALC662	AD1882
Weight & dimensions4 differ
WidthDiffers	175 mm	276 mm
DepthDiffers	440 mm	273 mm
HeightDiffers	402 mm	89 mm
WeightDiffers	11 kg	6.4 kg
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	No
Other featuresidentical
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional
Designidentical
Chassis typeKnown for one	Tower	Unknown — not stated by the source
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	IBM	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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