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
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor model	E4600	E4600
Processor cores	2	2
Processor threads	2	2
Processor frequency	2.4 GHz	2.4 GHz
Processor cache	2 MB	2 MB
Processor cache type	L2	L2
Processor front side bus	800 MHz	800 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core 2 Duo E4000 Series	Intel Core 2 Duo E4000 Series
Processor codename	Conroe	Conroe
Thermal Design Power (TDP)	65 W	65 W
Tcase	73.3 °C	73.3 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die Transistors	167 M	167 M
Processing Die size	111 mm²	111 mm²
CPU multiplier (bus/core ratio)	12	12
Stepping	M0	M0
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	2 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Differs	2 x 1 GB	1 x 1 GB
Memory slots	2x DIMM	2x DIMM
Storageidentical
Total storage capacity	250 GB	250 GB
Optical drive type	DVD±RW	DVD±RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
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
Discrete graphics card model	Intel® GMA 3100	Intel® GMA 3100
Performanceidentical
Product type	PC	PC
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
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantity	2	2
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
Serial ports quantity	1	1
Parallel ports quantity	1	1
Power1 differ
Power supplyDiffers	310 W	225 W
Power requirementsKnown for one	110 - 220V, 50/ 60Hz	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Display6 differ
Display included	Yes	Yes
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
Processor special featuresidentical
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)	No	No
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK ID	32242	32242
Processor code	SLA94	SLA94
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
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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