Product comparison · 2 pcs/workstations

Lenovo Edge 72+LS2251 vs Lenovo Edge 72+LS2421p

136specifications compared
4differ
132identical
1known for one product only

Key differences

The Lenovo Edge 72+LS2421p has 50 cd/m² more display brightness than the Lenovo Edge 72+LS2251 (300 cd/m² vs 250 cd/m²). Display diagonal: 55.9 cm (22") on the Lenovo Edge 72+LS2251, 59.9 cm (23.6") on the Lenovo Edge 72+LS2421p. Display resolution: 1680 x 1050 pixels on the Lenovo Edge 72+LS2251, 1920 x 1080 pixels on the Lenovo Edge 72+LS2421p. Native aspect ratio: 16:10 on the Lenovo Edge 72+LS2251, 16:9 on the Lenovo Edge 72+LS2421p.

Display diagonal
- Edge 72+LS2251:55.9 cm (22")
- Edge 72+LS2421p:59.9 cm (23.6")
Display resolution
- Edge 72+LS2251:1680 x 1050 pixels
- Edge 72+LS2421p:1920 x 1080 pixels
Native aspect ratio
- Edge 72+LS2251:16:10
- Edge 72+LS2421p:16:9
Display brightness
- Edge 72+LS2251:250 cd/m²
- Edge 72+LS2421p:300 cd/m²

Side by side

Differences highlightedShow differences only

Comparison of Edge 72+LS2251, Edge 72+LS2421p
137 specifications	A Lenovo Edge 72+LS2251 View product	B Lenovo Edge 72+LS2421p View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	3rd gen Intel® Core™ i5	3rd gen Intel® Core™ i5
Processor model	i5-3470	i5-3470
Processor cores	4	4
Processor threads	4	4
Processor boost frequency	3.6 GHz	3.6 GHz
Processor frequency	3.2 GHz	3.2 GHz
Processor cache	6 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	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i5-3400 Desktop series	Intel Core i5-3400 Desktop series
Processor codename	Ivy Bridge	Ivy Bridge
Thermal Design Power (TDP)	77 W	77 W
Tcase	67.4 °C	67.4 °C
PCI Express configurations	1x16, 2x8	1x16, 2x8
PCI Express slots version	3.0	3.0
Number of processors installed	1	1
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)	32	32
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3 1333/1600	DDR3 1333/1600
Memory clock speeds supported by processor	1333,1600 MHz	1333,1600 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s	25.6 GB/s
ECC supported by processor	No	No
Memoryidentical
Internal memory	4 GB	4 GB
Maximum internal memory	16 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slots	2x DIMM	2x DIMM
Memory clock speed	1600 MHz	1600 MHz
Memory channels	Dual-channel	Dual-channel
Storageidentical
Total storage capacity	500 GB	500 GB
Optical drive type	DVD±RW	DVD±RW
Storage media	HDD	HDD
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	Yes	Yes
Graphicsidentical
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 2500	Intel® HD Graphics 2500
Number of displays supported (on-board graphics)	3	3
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)	1150 MHz	1150 MHz
On-board graphics card ID	0x152	0x152
Graphics card family	Intel	Intel
Performanceidentical
Product type	PC	PC
Motherboard chipset	Intel® H61	Intel® H61
Optical driveidentical
Optical drives quantity	1	1
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
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	6	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
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 port	Yes	Yes
PS/2 ports quantity	0	0
Expansion slotsidentical
Number of 3.5" bays	1	1
PCI Express x1 slots	2	2
PCI Express x16 slots	1	1
Poweridentical
Power supply	180 W	180 W
Designidentical
Chassis type	Tower	Tower
Number of 5.25" bays	1	1
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Product colour	Black	Black
Cooling type	Active	Active
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Display4 differ
Display included	Yes	Yes
Display diagonalDiffers	55.9 cm (22")	59.9 cm (23.6")
Display resolutionDiffers	1680 x 1050 pixels	1920 x 1080 pixels
Native aspect ratioDiffers	16:10	16:9
Contrast ratio (typical)	1000:1	1000:1
Display number of colours	16.78 million colours	16.78 million colours
Display brightnessDiffers	250 cd/m²	300 cd/m²
Viewing angle, horizontal	170°	170°
Viewing angle, vertical	160°	160°
Processor special featuresidentical
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 Technology	No	No
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 Secure Key Technology version	1.00	1.00
Intel TSX-NI version	0.00	0.00
Intel Trusted Execution Technology	Yes	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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	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)	Yes	Yes
Processor ARK ID	68316	68316
Processor package size	37.5 mm	37.5 mm
Supported instruction sets	AVX, SSE4.1, SSE4.2	AVX, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Thermal solution specification	PCG 2011D	PCG 2011D
Intel® Turbo Boost Technology	2.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Conflict-Free processor	Yes	Yes
Audioidentical
Audio system	HD	HD
Weight & dimensionsidentical
Width	160 mm	160 mm
Depth	399 mm	399 mm
Height	397 mm	397 mm
Weight	7.5 kg	7.5 kg
Packaging contentidentical
Mouse included	No	No
Keyboard included	No	No
Certificatesidentical
Compliance certificates	RoHS	RoHS
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab

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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