Product comparison · 2 pcs/workstations

Lenovo ThinkCentre E71 Intel Pentium G G630 vs Lenovo M91p + LS2251

104specifications compared
37differ
67identical
56known for one product only

Key differences

Processor family
- ThinkCentre E71 Intel Pentium G G630:Intel Pentium G
- M91p + LS2251:Intel® Core™ i5
Processor model
- ThinkCentre E71 Intel Pentium G G630:G630
- M91p + LS2251:i5-2400
Processor cores
- ThinkCentre E71 Intel Pentium G G630:2
- M91p + LS2251:4
Processor threads
- ThinkCentre E71 Intel Pentium G G630:2
- M91p + LS2251:4
Processor frequency
- ThinkCentre E71 Intel Pentium G G630:2.7 GHz
- M91p + LS2251:3.1 GHz
Processor cache
- ThinkCentre E71 Intel Pentium G G630:3 MB
- M91p + LS2251:6 MB
Thermal Design Power (TDP)
- ThinkCentre E71 Intel Pentium G G630:65 W
- M91p + LS2251:95 W
Tcase
- ThinkCentre E71 Intel Pentium G G630:69.1 °C
- M91p + LS2251:72.6 °C

Side by side

Differences highlightedShow differences only

Comparison of E71, M91p + LS2251
160 specifications	A Lenovo ThinkCentre E71 Intel Pentium G G630 Model E71 View product	B Lenovo M91p + LS2251 View product
Processor12 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel Pentium G	Intel® Core™ i5
Processor generationKnown for one	Unknown — not stated by the source	2nd gen Intel® Core™ i5
Processor modelDiffers	G630	i5-2400
Processor coresDiffers	2	4
Processor threadsDiffers	2	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.4 GHz
Processor frequencyDiffers	2.7 GHz	3.1 GHz
Processor cacheDiffers	3 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
FSB ParityKnown for one	Unknown — not stated by the source	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 Pentium G600 Series for Desktop	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 lanesKnown for one	Unknown — not stated by the source	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	27	31
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	1066 MHz	1066,1333 MHz
Memory bandwidth supported by processor (max)Differs	17 GB/s	21 GB/s
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
PlatformKnown for one	PC	Unknown — not stated by the source
SteppingKnown for one	Q0	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	2 GB	4 GB
Maximum internal memoryDiffers	8 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slotsKnown for one	Unknown — not stated by the source	4x DIMM
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channels	Dual-channel	Dual-channel
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Storageidentical
Total storage capacity	500 GB	500 GB
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD capacity	500 GB	500 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
RAID levelsKnown for one	Unknown — not stated by the source	0, 1
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Floppy drive installedKnown for one	No	Unknown — not stated by the source
Graphics1 differ
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	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 IDKnown for one	Unknown — not stated by the source	0x102
Graphics card family	Intel	Intel
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® H61	Intel® Q67 Express
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
Networking features	Gigabit Ethernet	Gigabit Ethernet
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
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	6	8
DisplayPorts quantityKnown for one	Unknown — not stated by the source	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
Firewire (IEEE 1394) ports	0	0
DC-in jackKnown for one	Unknown — not stated by the source	Yes
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
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	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
Expansion slots1 differ
Number of 3.5" baysDiffers	1	2
PCI Express x1 slots	1	1
PCI Express x16 slots	1	1
PCI slotsKnown for one	Unknown — not stated by the source	2
Power1 differ
Power supplyDiffers	180 W	240 W
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Designidentical
Chassis type	SFF	SFF
Number of 5.25" bays	1	1
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Product colour	Black	Black
External drive baysKnown for one	1 x 5.25"	Unknown — not stated by the source
Internal drive baysKnown for one	1 x 3.5"	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Mac compatibilityKnown for one	No	Unknown — not stated by the source
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 number of coloursKnown for one	Unknown — not stated by the source	16.78 million colours
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 features10 differ
CPU configuration (max)	1	1
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 TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	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 versionKnown for one	Unknown — not stated by the source	1.00
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	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)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	53483	52207
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 TechnologyDiffers	No	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Processor codeKnown for one	SR05S	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Realtek ALC662	HD
Weight & dimensions4 differ
WidthDiffers	333 mm	337 mm
DepthDiffers	368 mm	369 mm
HeightDiffers	99 mm	99.7 mm
WeightDiffers	6 kg	7.5 kg
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Ergonomicsidentical
Plug and PlayKnown 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.

More pcs/workstations comparisons

All pcs/workstations comparisons