Product comparison · 2 pcs/workstations

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

80specifications compared
19differ
61identical
17known for one product only

Key differences

Processor model
- ThinkCentre A57:E4600
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:E4300
Processor frequency
- ThinkCentre A57:2.4 GHz
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:1.8 GHz
Tcase
- ThinkCentre A57:73.3 °C
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:61.4 °C
CPU multiplier (bus/core ratio)
- ThinkCentre A57:12
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:9
Internal memory
- ThinkCentre A57:2 GB
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:1 GB
Total storage capacity
- ThinkCentre A57:250 GB
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:80 GB
Optical drive type
- ThinkCentre A57:DVD±RW
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:DVD-ROM
Discrete graphics card model
- ThinkCentre A57:Intel® GMA 3100
- ThinkCentre M55e Small Desktop (9645-Q1G), FR:Intel® GMA 3000

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A57, ThinkCentre M55e Small Desktop (9645-Q1G), FR
97 specifications	A Lenovo ThinkCentre A57 View product	B Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), FR View product
Processor4 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	E4600	E4300
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.4 GHz	1.8 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
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	12 W
TcaseDiffers	73.3 °C	61.4 °C
Number of processors installedKnown for one	Unknown — not stated by the source	1
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)Differs	12	9
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.225 - 1.325 V
ECC supported by processor	No	No
SteppingKnown for one	M0	Unknown — not stated by the source
Memory1 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)Known for one	2 x 1 GB	Unknown — not stated by the source
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	250 GB	80 GB
Optical drive typeDiffers	DVD±RW	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
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 & interfaces1 differ
USB 2.0 ports quantityDiffers	6	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantity	1	1
Expansion slotsidentical
Expansion slotsKnown for one	Unknown — not stated by the source	1x PCI 1x PCI Express 1x PCI
Power1 differ
Power supplyDiffers	280 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
Design1 differ
Chassis typeDiffers	SFF	Small Desktop
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
Software1 differ
Operating system installedDiffers	Windows Vista Business	Windows XP Professional
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	32242	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
Processor codeKnown for one	SLA94	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	ALC662	ADI 1986 A
Weight & dimensions4 differ
WidthDiffers	317 mm	310 mm
DepthDiffers	355 mm	358 mm
HeightDiffers	99 mm	87.5 mm
WeightDiffers	3.31 kg	8.5 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	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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