Product comparison · 2 pcs/workstations

Acer Aspire M1900 Intel® Pentium® E5800 vs Lenovo M81 SFF + ThinkVision LS2251

91specifications compared
45differ
46identical
46known for one product only

Key differences

Processor family
- Aspire M1900 Intel® Pentium® E5800:Intel® Pentium®
- M81 SFF + ThinkVision LS2251:Intel® Core™ i3
Processor model
- Aspire M1900 Intel® Pentium® E5800:E5800
- M81 SFF + ThinkVision LS2251:i3-2100
Processor threads
- Aspire M1900 Intel® Pentium® E5800:2
- M81 SFF + ThinkVision LS2251:4
Processor frequency
- Aspire M1900 Intel® Pentium® E5800:3.2 GHz
- M81 SFF + ThinkVision LS2251:3.1 GHz
Processor cache
- Aspire M1900 Intel® Pentium® E5800:2 MB
- M81 SFF + ThinkVision LS2251:3 MB
Bus type
- Aspire M1900 Intel® Pentium® E5800:FSB
- M81 SFF + ThinkVision LS2251:DMI
Processor lithography
- Aspire M1900 Intel® Pentium® E5800:45 nm
- M81 SFF + ThinkVision LS2251:32 nm
Processor codename
- Aspire M1900 Intel® Pentium® E5800:Wolfdale
- M81 SFF + ThinkVision LS2251:Sandy Bridge

Side by side

Differences highlightedShow differences only

Comparison of M1900, M81 SFF + ThinkVision LS2251
137 specifications	A Acer Aspire M1900 Intel® Pentium® E5800 Model M1900 View product	B Lenovo M81 SFF + ThinkVision LS2251 View product
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i3
Processor generationKnown for one	Unknown — not stated by the source	2nd gen Intel® Core™ i3
Processor modelDiffers	E5800	i3-2100
Processor cores	2	2
Processor threadsDiffers	2	4
Processor frequencyDiffers	3.2 GHz	3.1 GHz
Processor cacheDiffers	2 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Bus typeDiffers	FSB	DMI
FSB Parity	No	No
System bus rateKnown for one	Unknown — not stated by the source	5 GT/s
Processor lithographyDiffers	45 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Pentium E5000 Series for Desktop	Intel Core i3-2100 Desktop Series
Processor codenameDiffers	Wolfdale	Sandy Bridge
Thermal Design Power (TDP)Differs	65 W	35, 65
TcaseDiffers	74.1 °C	69.1 °C
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Number of processors installed	1	1
Processor socketDiffers	LGA 775 (Socket T)	LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs	16	31
SteppingDiffers	R0	Q0
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	32 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	21 GB/s
ECC supported by processor	No	No
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	228 M	Unknown — not stated by the source
Processing Die sizeKnown for one	82 mm²	Unknown — not stated by the source
Memory3 differ
Internal memoryDiffers	4 GB	2 GB
Maximum internal memoryDiffers	4 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	2 x 2 GB	1 x 2 GB
Memory slotsKnown for one	Unknown — not stated by the source	4x DIMM
Memory clock speed	1333 MHz	1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Dual-channel
Storage4 differ
Total storage capacityDiffers	1 TB	320 GB
Optical drive typeDiffers	DVD Super Multi	DVD-RW
Number of HDDs installed	1	1
HDD capacityKnown for one	Unknown — not stated by the source	320 GB
HDD interface	SATA	SATA
HDD speedDiffers	5400 RPM	7200 RPM
Card reader integratedDiffers	Yes	No
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Not available
On-board graphics card familyDiffers	Intel® GMA	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® GMA X4500	Intel® HD Graphics 2000
Number of displays supported (on-board graphics)Known for one	Unknown — not stated by the source	2
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	850 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1100 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x102
Graphics card family	Intel	Intel
On-board graphics card memoryKnown for one	1 GB	Unknown — not stated by the source
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® G41	Intel® Q65 Express
Networkidentical
Modem typeKnown for one	Unknown — not stated by the source	No
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Wi-Fi	No	No
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ethernet interface typeKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	6	8
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
Serial ports quantityDiffers	0	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	250 W	240 W
Design1 differ
Chassis typeDiffers	Tower	SFF
Product colour	Black	Black
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	55.9 cm (22")
Display resolutionKnown for one	Unknown — not stated by the source	1680 x 1050 pixels
Native aspect ratioKnown for one	Unknown — not stated by the source	16:10
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	170°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	160°
Processor special features11 differ
CPU configuration (max)	1	1
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 TechnologyDiffers	No	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
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)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	42802	53422
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Processor codeKnown for one	SLGTG	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	High Definition Audio
Weight & dimensions4 differ
WidthDiffers	180 mm	337 mm
DepthDiffers	402 mm	369 mm
HeightDiffers	379 mm	99.7 mm
WeightDiffers	16 kg	7.5 kg
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional
Expansion slotsidentical
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
Keyboardidentical
Keyboard layoutKnown for one	AZERTY	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source

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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