Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A57 Tower vs Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK

83specifications compared
24differ
59identical
17known for one product only

Key differences

The Lenovo ThinkCentre A57 Tower has 0.4 GHz more processor frequency than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK (2.2 GHz vs 1.8 GHz). The Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK has 1 MB more processor cache than the Lenovo ThinkCentre A57 Tower (2 MB vs 1 MB). The Lenovo ThinkCentre A57 Tower has 11.9°C more tcase than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK (73.3 °C vs 61.4 °C). Only the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK has embedded options available. Processor family: Intel® Pentium® on the Lenovo ThinkCentre A57 Tower, Intel® Core™2 Duo on the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK.

Processor family
- ThinkCentre A57 Tower:Intel® Pentium®
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:Intel® Core™2 Duo
Processor model
- ThinkCentre A57 Tower:E2200
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:E4300
Processor frequency
- ThinkCentre A57 Tower:2.2 GHz
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:1.8 GHz
Processor cache
- ThinkCentre A57 Tower:1 MB
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:2 MB
Tcase
- ThinkCentre A57 Tower:73.3 °C
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:61.4 °C
Number of Processing Die Transistors
- ThinkCentre A57 Tower:105 M
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:167 M
Processing Die size
- ThinkCentre A57 Tower:77 mm²
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:111 mm²
CPU multiplier (bus/core ratio)
- ThinkCentre A57 Tower:11
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:9

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A57 Tower, ThinkCentre M55e Small Desktop (9645-Q1G), UK
100 specifications	A Lenovo ThinkCentre A57 Tower View product	B Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK View product
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Core™2 Duo
Processor modelDiffers	E2200	E4300
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.2 GHz	1.8 GHz
Processor cacheDiffers	1 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 seriesDiffers	Intel Pentium E2000 Series for Desktop	Intel Core 2 Duo E4000 Series
Processor codename	Conroe	Conroe
Thermal Design Power (TDP)	65 W	65 W
TcaseDiffers	73.3 °C	61.4 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	105 M	167 M
Processing Die sizeDiffers	77 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	11	9
SteppingKnown for one	M0	Unknown — not stated by the source
ECC supported by processor	No	No
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	12 W
Number of processors installedKnown for one	Unknown — not stated by the source	1
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.225 - 1.325 V
Memoryidentical
Internal memory	1 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	1 x 1 GB	Unknown — not stated by the source
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	160 GB	80 GB
Optical drive typeDiffers	DVD-RW	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integratedKnown for one	No	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 3100	Intel® GMA 3000
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces2 differ
USB 2.0 ports quantity	8	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputsDiffers	4	1
Line-outKnown for one	Yes	Unknown — not stated by the source
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Serial ports quantityDiffers	0	1
Parallel ports quantity	1	1
Expansion slots1 differ
Expansion slotsDiffers	1 x PCI Express 16X 2 x PCI 1 x PCI Express 1X	1x PCI 1x PCI Express 1x PCI
Power1 differ
Power supply typeKnown for one	110 - 220 V	Unknown — not stated by the source
Power supplyDiffers	280 W	225 W
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Tower	Small Desktop
Product colourKnown for one	Black	Unknown — not stated by the source
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Compatible operating systemsKnown for one	Windows XP Professional MS-DOS Windows XP Windows XP Home Edition Windows Vista Ultimate Windows Vista Ultimate 64-Bit Windows Vista Business Windows Vista Business 64 Windows Vista Home Basic Windows Vista Home Premium Windows Vista Home Premium 64	Unknown — not stated by the source
Bundled softwareKnown for one	Unknown — not stated by the source	Yes
Displayidentical
Display included	No	No
Processor special features2 differ
Embedded options availableDiffers	No	Yes
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 IDDiffers	33925	28024
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	ADI 1986 A
Weight & dimensions4 differ
WidthDiffers	331 mm	310 mm
DepthDiffers	412 mm	358 mm
HeightDiffers	104 mm	87.5 mm
WeightDiffers	3.31 kg	8.5 kg
Packaging contentidentical
Mouse included	Yes	Yes
Other featuresidentical
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional

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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