Product comparison · 2 pcs/workstations

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

90specifications compared
26differ
64identical
16known for one product only

Key differences

The Lenovo ThinkCentre A57 + Lenovo D221 has 0.26 GHz more processor frequency than the Lenovo ThinkCentre M57 + ThinkVision D221 (2.66 GHz vs 2.4 GHz). The Lenovo ThinkCentre A57 + Lenovo D221 has 4 MB more processor cache than the Lenovo ThinkCentre M57 + ThinkVision D221 (6 MB vs 2 MB). The Lenovo ThinkCentre A57 + Lenovo D221 has 533 MHz more processor front side bus than the Lenovo ThinkCentre M57 + ThinkVision D221 (1333 MHz vs 800 MHz). Only the Lenovo ThinkCentre A57 + Lenovo D221 has DVI port. Only the Lenovo ThinkCentre A57 + Lenovo D221 has Intel Trusted Execution Technology.

Processor model
- ThinkCentre A57 + Lenovo D221:E8200
- ThinkCentre M57 + ThinkVision D221:E4600
Processor frequency
- ThinkCentre A57 + Lenovo D221:2.66 GHz
- ThinkCentre M57 + ThinkVision D221:2.4 GHz
Processor cache
- ThinkCentre A57 + Lenovo D221:6 MB
- ThinkCentre M57 + ThinkVision D221:2 MB
Processor front side bus
- ThinkCentre A57 + Lenovo D221:1333 MHz
- ThinkCentre M57 + ThinkVision D221:800 MHz
Processor lithography
- ThinkCentre A57 + Lenovo D221:45 nm
- ThinkCentre M57 + ThinkVision D221:65 nm
Processor codename
- ThinkCentre A57 + Lenovo D221:Wolfdale
- ThinkCentre M57 + ThinkVision D221:Conroe
Tcase
- ThinkCentre A57 + Lenovo D221:72.4 °C
- ThinkCentre M57 + ThinkVision D221:73.3 °C
Number of Processing Die Transistors
- ThinkCentre A57 + Lenovo D221:410 M
- ThinkCentre M57 + ThinkVision D221:167 M

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A57 + Lenovo D221, ThinkCentre M57 + ThinkVision D221
106 specifications	A Lenovo ThinkCentre A57 + Lenovo D221 View product	B Lenovo ThinkCentre M57 + ThinkVision D221 View product
Processor12 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	E8200	E4600
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.66 GHz	2.4 GHz
Processor cacheDiffers	6 MB	2 MB
Processor cache type	L2	L2
Processor front side busDiffers	1333 MHz	800 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithographyDiffers	45 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core 2 Duo E8000 Series	Intel Core 2 Duo E4000 Series
Processor codenameDiffers	Wolfdale	Conroe
Thermal Design Power (TDP)	65 W	65 W
TcaseDiffers	72.4 °C	73.3 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	410 M	167 M
Processing Die sizeDiffers	107 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	8	12
SteppingDiffers	C0	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 integratedKnown for one	Unknown — not stated by the source	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
Networkidentical
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Wi-FiKnown for one	Unknown — not stated by the source	No
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces2 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 portDiffers	Yes	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 quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantity	1	1
Power1 differ
Power supplyDiffers	250 W	225 W
Power supply input voltageKnown for one	110 - 220 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Displayidentical
Display included	Yes	Yes
Display diagonal	55.9 cm (22")	55.9 cm (22")
Display resolution	1680 x 1050 pixels	1680 x 1050 pixels
Contrast ratio (typical)	700:1	700:1
Display brightness	300 cd/m²	300 cd/m²
Viewing angle, horizontal	176°	176°
Viewing angle, vertical	176°	176°
DisplayKnown for one	TFT	Unknown — not stated by the source
Processor special features4 differ
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 TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)Differs	Yes	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 IDDiffers	33909	32242
Processor codeDiffers	SLAPP	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	ALC662	AD1882
Weight & dimensions4 differ
WidthDiffers	317 mm	276 mm
DepthDiffers	355 mm	273 mm
HeightDiffers	99 mm	89 mm
WeightDiffers	3.31 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	SFF	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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