Product comparison · 2 pcs/workstations

Acer Aspire T671-CD vs Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171

78specifications compared
12differ
66identical
21known for one product only

Key differences

The Acer Aspire T671-CD has 1 GB more internal memory than the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171 (2 GB vs 1 GB). The Acer Aspire T671-CD has 160 GB more total storage capacity than the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171 (320 GB vs 160 GB). The Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171 has 1 more USB 2.0 ports quantity than the Acer Aspire T671-CD (8 vs 7). Only the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171 has display included. Optical drive type: DVD±RW on the Acer Aspire T671-CD, DVD-RW on the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171.

Internal memory
- Aspire T671-CD:2 GB
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:1 GB
Total storage capacity
- Aspire T671-CD:320 GB
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:160 GB
Optical drive type
- Aspire T671-CD:DVD±RW
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:DVD-RW
Discrete graphics card model
- Aspire T671-CD:AMD Radeon X1650
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:Intel® GMA 3000
USB 2.0 ports quantity
- Aspire T671-CD:7
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:8
Operating system installed
- Aspire T671-CD:Windows Vista Home Premium
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:Windows Vista Business
Display included
- Aspire T671-CD:No
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:Yes
Audio system
- Aspire T671-CD:High Definition Audio 7.1
- ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171:ADI 1983 HD

Side by side

Differences highlightedShow differences only

Comparison of Aspire T671-CD, ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171
99 specifications	A Acer Aspire T671-CD View product	B Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G) + ThinkVision L171 View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium® D	Intel® Pentium® D
Processor model	925	925
Processor cores	2	2
Processor threads	2	2
Processor frequency	3 GHz	3 GHz
Processor cache	4 MB	4 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 Pentium D 900 Series	Intel Pentium D 900 Series
Processor codename	Presler	Presler
Thermal Design Power (TDP)	95 W	95 W
Tcase	63.4 °C	63.4 °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	376 M	376 M
Processing Die size	162 mm²	162 mm²
CPU multiplier (bus/core ratio)	15	15
ECC supported by processor	No	No
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	Unknown — not stated by the source	1 x 1 GB
Storage2 differ
Total storage capacityDiffers	320 GB	160 GB
Optical drive typeDiffers	DVD±RW	DVD-RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Graphics1 differ
Discrete graphics card modelDiffers	AMD Radeon X1650	Intel® GMA 3000
Maximum graphics card memoryKnown for one	1.024 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	7	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
Parallel 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
Firewire (IEEE 1394) portsKnown for one	1	Unknown — not stated by the source
Poweridentical
Power availabilityKnown for one	Unknown — not stated by the source	225 W
Designidentical
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
Chassis typeKnown for one	Tower	Unknown — not stated by the source
Software2 differ
Operating system installedDiffers	Windows Vista Home Premium	Windows Vista Business
Bundled softwareDiffers	Adobe Acrobat Reader 7.0, NTI CD-Maker Gold, Self Burn Recovery, Acer Empowering Framework, Acer eRecovery Management, Acer eDataSecurity Management, Acer ePerformance Management, Acer e-Mode, Acer e-Console	Yes
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	43.2 cm (17")
Display resolutionKnown for one	Unknown — not stated by the source	1280 x 1024 pixels
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
Display brightnessKnown for one	Unknown — not stated by the source	270 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	140°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	135°
DisplayKnown for one	Unknown — not stated by the source	LCD
Processor special featuresidentical
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 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
Physical Address Extension (PAE)	Yes	Yes
Processor ARK ID	27517	27517
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	No	No
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	High Definition Audio 7.1	ADI 1983 HD
Weight & dimensions3 differ
WidthDiffers	183 mm	275 mm
DepthDiffers	455 mm	87.5 mm
HeightDiffers	370 mm	275 mm
WeightKnown for one	Unknown — not stated by the source	6.4 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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