Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A55 870576G, DE vs Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE

84specifications compared
23differ
61identical
13known for one product only

Key differences

The Lenovo ThinkCentre A55 870576G, DE has 1.2 GHz more processor frequency than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE (3 GHz vs 1.8 GHz). The Lenovo ThinkCentre A55 870576G, DE has 2 MB more processor cache than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE (4 MB vs 2 MB). The Lenovo ThinkCentre A55 870576G, DE has 30 W more thermal Design Power (TDP) than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE (95 W vs 65 W). Only the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE has embedded options available. Only the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE has thermal Monitoring Technologies.

Processor family
- ThinkCentre A55 870576G, DE:Intel® Pentium® D
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:Intel® Core™2 Duo
Processor model
- ThinkCentre A55 870576G, DE:925
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:E4300
Processor frequency
- ThinkCentre A55 870576G, DE:3 GHz
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:1.8 GHz
Processor cache
- ThinkCentre A55 870576G, DE:4 MB
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:2 MB
Processor codename
- ThinkCentre A55 870576G, DE:Presler
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:Conroe
Thermal Design Power (TDP)
- ThinkCentre A55 870576G, DE:95 W
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:65 W
Tcase
- ThinkCentre A55 870576G, DE:63.4 °C
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:61.4 °C
Number of Processing Die Transistors
- ThinkCentre A55 870576G, DE:376 M
- ThinkCentre M55e Small Desktop (9645-Q1G), BE:167 M

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A55 870576G, DE, ThinkCentre M55e Small Desktop (9645-Q1G), BE
97 specifications	A Lenovo ThinkCentre A55 870576G, DE View product	B Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), BE View product
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium® D	Intel® Core™2 Duo
Processor modelDiffers	925	E4300
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	3 GHz	1.8 GHz
Processor cacheDiffers	4 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 D 900 Series	Intel Core 2 Duo E4000 Series
Processor codenameDiffers	Presler	Conroe
Thermal Design Power (TDP)Differs	95 W	65 W
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	12 W
TcaseDiffers	63.4 °C	61.4 °C
Number of processors installed	1	1
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	376 M	167 M
Processing Die sizeDiffers	162 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	15	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
Memory1 differ
Internal memoryDiffers	0.5 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 0.5 GB	Unknown — not stated by the source
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Storageidentical
Total storage capacity	80 GB	80 GB
Optical drive type	DVD-ROM	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Graphicsidentical
Discrete graphics card model	Intel® GMA 3000	Intel® GMA 3000
Maximum graphics card memoryKnown for one	0.128 GB	Unknown — not stated by the source
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 quantity	1	1
Parallel ports quantity	1	1
Expansion slots1 differ
Expansion slotsDiffers	1x PCI Express 1X 1x PCI Express 16X 2x PCI	1x PCI 1x PCI Express 1x PCI
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
Design1 differ
Chassis typeDiffers	Tower	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 installed	Windows XP Professional	Windows XP Professional
Bundled softwareDiffers	Adobe Acrobat Reader Diskeeper Lite Google Desktop Google Toolbar Google Picasa	Yes
Displayidentical
Display included	No	No
Processor special features3 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	27517	28024
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffers	No	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
Physical Address Extension (PAE)Known for one	Yes	Unknown — not stated by the source
Audioidentical
Audio system	ADI 1986 A	ADI 1986 A
Weight & dimensions3 differ
WidthDiffers	175 mm	310 mm
DepthDiffers	440 mm	358 mm
HeightDiffers	402 mm	87.5 mm
WeightKnown for one	Unknown — not stated by the source	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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