Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A55 + D221 vs Lenovo ThinkCentre A61e + 19" TFT + 1GB

30specifications compared
15differ
15identical
65known for one product only

Key differences

Processor manufacturer
- ThinkCentre A55 + D221:Intel
- ThinkCentre A61e + 19" TFT + 1GB:AMD
Processor family
- ThinkCentre A55 + D221:Intel® Core™2 Duo
- ThinkCentre A61e + 19" TFT + 1GB:AMD Athlon
Processor model
- ThinkCentre A55 + D221:E4500
- ThinkCentre A61e + 19" TFT + 1GB:BE-2350
Processor frequency
- ThinkCentre A55 + D221:2.2 GHz
- ThinkCentre A61e + 19" TFT + 1GB:2.1 GHz
Memory slots
- ThinkCentre A55 + D221:2x DIMM
- ThinkCentre A61e + 19" TFT + 1GB:2x SO-DIMM
Discrete graphics card model
- ThinkCentre A55 + D221:Intel® GMA 3000
- ThinkCentre A61e + 19" TFT + 1GB:AMD Radeon X1200
USB 2.0 ports quantity
- ThinkCentre A55 + D221:8
- ThinkCentre A61e + 19" TFT + 1GB:6
Power supply
- ThinkCentre A55 + D221:225 W
- ThinkCentre A61e + 19" TFT + 1GB:130 W

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A55 + D221, ThinkCentre A61e + 19" TFT + 1GB
95 specifications	A Lenovo ThinkCentre A55 + D221 View product	B Lenovo ThinkCentre A61e + 19" TFT + 1GB View product
Processor4 differ
Processor manufacturerDiffers	Intel	AMD
Processor familyDiffers	Intel® Core™2 Duo	AMD Athlon
Processor modelDiffers	E4500	BE-2350
Processor coresKnown for one	2	Unknown — not stated by the source
Processor threadsKnown for one	2	Unknown — not stated by the source
Processor frequencyDiffers	2.2 GHz	2.1 GHz
Processor cacheKnown for one	2 MB	Unknown — not stated by the source
Processor cache typeKnown for one	L2	Unknown — not stated by the source
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Bus typeKnown for one	FSB	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
Processor lithographyKnown for one	65 nm	Unknown — not stated by the source
Processor operating modesKnown for one	64-bit	Unknown — not stated by the source
Processor seriesKnown for one	Intel Core 2 Duo E4000 Series	Unknown — not stated by the source
Processor codenameKnown for one	Conroe	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	65 W	Unknown — not stated by the source
TcaseKnown for one	73.3 °C	Unknown — not stated by the source
Processor socketKnown for one	LGA 775 (Socket T)	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	167 M	Unknown — not stated by the source
Processing Die sizeKnown for one	111 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	11	Unknown — not stated by the source
Processor core voltage (AC)Known for one	0.85 - 1.5 V	Unknown — not stated by the source
SteppingKnown for one	M0	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memory1 differ
Internal memory	1 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory slotsDiffers	2x DIMM	2x SO-DIMM
Storageidentical
Total storage capacity	160 GB	160 GB
Optical drive type	DVD±RW	DVD±RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 3000	AMD Radeon X1200
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	6
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	Yes	Unknown — not stated by the source
PS/2 ports quantityKnown for one	2	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	225 W	130 W
Designidentical
Chassis typeKnown for one	SFF	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	Kensington
Software1 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Display1 differ
Display included	Yes	Yes
Display diagonalDiffers	55.9 cm (22")	48.3 cm (19")
Display resolutionKnown for one	1680 x 1050 pixels	Unknown — not stated by the source
Contrast ratio (typical)Known for one	700:1	Unknown — not stated by the source
Display brightnessKnown for one	300 cd/m²	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	176°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	176°	Unknown — not stated by the source
Display	TFT	TFT
Processor special featuresidentical
Embedded options availableKnown for one	No	Unknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64Known for one	Yes	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	No	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	No	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Processor ARK IDKnown for one	30781	Unknown — not stated by the source
Processor codeKnown for one	SLA95	Unknown — not stated by the source
Processor package sizeKnown for one	37.5 x 37.5 mm	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	No	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	ADI 1986 A	ADI 1984 A
Weight & dimensions4 differ
WidthDiffers	310 mm	275 mm
DepthDiffers	358 mm	242 mm
HeightDiffers	85 mm	81 mm
WeightDiffers	8.5 kg	3.72 kg

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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