Product comparison · 2 pcs/workstations

Lenovo M81 + LT2252p vs Lenovo M91p + L2251x

128specifications compared
31differ
97identical
34known for one product only

Key differences

The Lenovo M91p + L2251x has 2 more processor cores than the Lenovo M81 + LT2252p (4 vs 2). The Lenovo M81 + LT2252p has 0.2 GHz more processor frequency than the Lenovo M91p + L2251x (3.3 GHz vs 3.1 GHz). The Lenovo M91p + L2251x has 3 MB more processor cache than the Lenovo M81 + LT2252p (6 MB vs 3 MB). Only the Lenovo M81 + LT2252p has DVI port. Only the Lenovo M91p + L2251x has Intel Trusted Execution Technology.

Processor family
- M81 + LT2252p:Intel® Core™ i3
- M91p + L2251x:Intel® Core™ i5
Processor generation
- M81 + LT2252p:2nd gen Intel® Core™ i3
- M91p + L2251x:2nd gen Intel® Core™ i5
Processor model
- M81 + LT2252p:i3-2120
- M91p + L2251x:i5-2400
Processor cores
- M81 + LT2252p:2
- M91p + L2251x:4
Processor frequency
- M81 + LT2252p:3.3 GHz
- M91p + L2251x:3.1 GHz
Processor cache
- M81 + LT2252p:3 MB
- M91p + L2251x:6 MB
Thermal Design Power (TDP)
- M81 + LT2252p:65 W
- M91p + L2251x:95 W
Tcase
- M81 + LT2252p:69.1 °C
- M91p + L2251x:72.6 °C

Side by side

Differences highlightedShow differences only

Comparison of M81 + LT2252p, M91p + L2251x
162 specifications	A Lenovo M81 + LT2252p View product	B Lenovo M91p + L2251x View product
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i5
Processor modelDiffers	i3-2120	i5-2400
Processor coresDiffers	2	4
Processor threads	4	4
Processor frequencyDiffers	3.3 GHz	3.1 GHz
Processor cacheDiffers	3 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
FSB Parity	No	No
System bus rate	5 GT/s	5 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-2100 Desktop Series	Intel Core i5-2400 Desktop Series
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	69.1 °C	72.6 °C
Maximum number of PCI Express lanes	16	16
PCI Express slots version	2.0	2.0
Number of processors installed	1	1
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs	33	31
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
PlatformKnown for one	PC	Unknown — not stated by the source
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processorDiffers	DDR3 1066/1333	DDR3-SDRAM
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
ECC supported by processor	No	No
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.4 GHz
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	1066,1333 MHz
Memory1 differ
Internal memoryDiffers	2 GB	4 GB
Maximum internal memory	16 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Memory slotsKnown for one	Unknown — not stated by the source	4x DIMM
Storage3 differ
Total storage capacityDiffers	320 GB	500 GB
Optical drive typeDiffers	DVD Super Multi	DVD-RW
Number of HDDs installed	1	1
HDD capacityDiffers	320 GB	500 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Card reader integrated	No	No
Floppy drive installedKnown for one	No	Unknown — not stated by the source
RAID levelsKnown for one	Unknown — not stated by the source	0, 1
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics card modelKnown for one	AMD Radeon HD 5450	Unknown — not stated by the source
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 2000	Intel® HD Graphics 2000
Number of displays supported (on-board graphics)	2	2
On-board graphics card base frequency	850 MHz	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card ID	0x102	0x102
Graphics card familyDiffers	ATI, Intel	Intel
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® Q65 Express	Intel® Q67 Express
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Wi-Fi	No	No
Wake-on-LAN ready	Yes	Yes
Copper ethernet cabling technologyKnown for one	1000BASE-T, 1000BASE-TX, 100BASE-T, 100BASE-TX, 10BASE-T	Unknown — not stated by the source
Ethernet interface typeKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantity	8	8
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantity	1	1
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI portDiffers	Yes	No
PS/2 ports quantity	0	0
Firewire (IEEE 1394) ports	0	0
Serial ports quantity	1	1
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
HDMIKnown for one	No	Unknown — not stated by the source
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
USB connector typeKnown for one	USB Type-A	Unknown — not stated by the source
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Expansion slots1 differ
Number of 3.5" baysDiffers	3	2
PCI Express x1 slots	1	1
PCI Express x16 slots	1	1
PCI slots	2	2
Power1 differ
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Power supplyDiffers	280 W	240 W
Design1 differ
Chassis typeDiffers	Tower	SFF
Number of 5.25" bays	1	1
Product colour	Black	Black
External drive baysKnown for one	1 x 5.25", 1 x 3.5"	Unknown — not stated by the source
Internal drive baysKnown for one	2 x 3.5"	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
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Displayidentical
Display included	Yes	Yes
Display diagonal	55.9 cm (22")	55.9 cm (22")
Display typeKnown for one	LED	Unknown — not stated by the source
Display resolution	1680 x 1050 pixels	1680 x 1050 pixels
Native aspect ratio	16:10	16:10
Contrast ratio (typical)	1000:1	1000:1
TouchscreenKnown for one	No	Unknown — not stated by the source
Display brightness	250 cd/m²	250 cd/m²
Viewing angle, horizontal	170°	170°
Viewing angle, vertical	160°	160°
DisplayKnown for one	LED	Unknown — not stated by the source
Processor special features6 differ
CPU configuration (max)	1	1
Embedded options available	Yes	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	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	53426	52207
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Audioidentical
Audio system	HD	HD
Weight & dimensions3 differ
WidthDiffers	175 mm	337 mm
DepthDiffers	442 mm	369 mm
HeightDiffers	414 mm	99.7 mm
WeightKnown for one	Unknown — not stated by the source	7.5 kg
Packaging contentidentical
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Keyboard includedKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainability1 differ
Sustainability certificatesDiffers	EPEAT Gold, ENERGY STAR	ENERGY STAR
Other featuresidentical
Intel segment tagging	Enterprise, Professional	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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