Product comparison · 2 all-in-one pcs/workstations

Lenovo IdeaCentre B520 vs Lenovo M71z Intel® Core™ i3 i3-2100

122specifications compared
44differ
78identical
26known for one product only

Key differences

Display diagonal
- IdeaCentre B520:58.4 cm (23")
- M71z Intel® Core™ i3 i3-2100:50.8 cm (20")
Display resolution
- IdeaCentre B520:1920 x 1080 pixels
- M71z Intel® Core™ i3 i3-2100:1600 x 900 pixels
HD type
- IdeaCentre B520:Full HD
- M71z Intel® Core™ i3 i3-2100:HD+
Full HD
- IdeaCentre B520:Yes
- M71z Intel® Core™ i3 i3-2100:No
Display brightness
- IdeaCentre B520:300 cd/m²
- M71z Intel® Core™ i3 i3-2100:250 cd/m²
Processor family
- IdeaCentre B520:Intel® Core™ i7
- M71z Intel® Core™ i3 i3-2100:Intel® Core™ i3
Processor generation
- IdeaCentre B520:2nd gen Intel® Core™ i7
- M71z Intel® Core™ i3 i3-2100:2nd gen Intel® Core™ i3
Processor model
- IdeaCentre B520:i7-2600
- M71z Intel® Core™ i3 i3-2100:i3-2100

Side by side

Differences highlightedShow differences only

Comparison of IdeaCentre B520, M71z
148 specifications	A Lenovo IdeaCentre B520 View product	B Lenovo M71z Intel® Core™ i3 i3-2100 Model M71z View product
Display5 differ
Display diagonalDiffers	58.4 cm (23")	50.8 cm (20")
Display resolutionDiffers	1920 x 1080 pixels	1600 x 900 pixels
Touchscreen	Yes	Yes
HD typeDiffers	Full HD	HD+
Full HDDiffers	Yes	No
LED backlight	Yes	Yes
Touch technology	Multi-touch	Multi-touch
Native aspect ratio	16:9	16:9
Display brightnessDiffers	300 cd/m²	250 cd/m²
Processor12 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i3
Processor generationDiffers	2nd gen Intel® Core™ i7	2nd gen Intel® Core™ i3
Processor modelDiffers	i7-2600	i3-2100
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequencyKnown for one	3.8 GHz	Unknown — not stated by the source
Processor frequencyDiffers	3.4 GHz	3.1 GHz
Processor cacheDiffers	8 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
System bus rate	5 GT/s	5 GT/s
64-bit computing	Yes	Yes
Thermal Design Power (TDP)Differs	95 W	35, 65
Bus type	DMI	DMI
CPU multiplier (bus/core ratio)Differs	34	31
FSB Parity	No	No
Maximum number of PCI Express lanes	16	16
PCI Express slots version	2.0	2.0
Processor codeKnown for one	SR00B	Unknown — not stated by the source
Processor codename	Sandy Bridge	Sandy Bridge
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-2600 Desktop Series	Intel Core i3-2100 Desktop Series
SteppingDiffers	D2	Q0
TcaseDiffers	72.6 °C	69.1 °C
Conflict-Free processor	No	No
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	1066,1333 MHz	1066,1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
Memory channels supported by processor	Dual	Dual
ECC supported by processor	No	No
Memory3 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Maximum internal memoryDiffers	16 GB	8 GB
Memory slotsDiffers	4	2
Memory slots type	SO-DIMM	SO-DIMM
Memory clock speed	1333 MHz	1333 MHz
Storage3 differ
Total storage capacityDiffers	2 TB	500 GB
Storage media	HDD	HDD
Number of storage drives installed	1	1
Number of HDDs installed	1	1
HDD speed	7200 RPM	7200 RPM
HDD interfaceDiffers	SATA	SATA II
Optical drive typeDiffers	Blu-Ray ROM	DVD-RW
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MS PRO, SD, SDHC, SDXC	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelKnown for one	NVIDIA® GeForce® GT 555M	Unknown — not stated by the source
Discrete graphics card memoryKnown for one	1 GB	Unknown — not stated by the source
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 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)Differs	1350 MHz	1100 MHz
On-board graphics card ID	0x102	0x102
Audio2 differ
Built-in speaker(s)	Yes	Yes
RMS rated powerDiffers	15 W	4 W
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Audio systemDiffers	SRS Premium Sound	HD
Camera1 differ
Built-in camera	Yes	Yes
Total megapixelsDiffers	0.3 MP	2 MP
Networkidentical
Wi-FiKnown for one	Yes	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	No	No
Ports & interfaces3 differ
Ethernet LAN (RJ-45) ports	1	1
USB 2.0 ports quantityDiffers	4	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	0
HDMI ports quantityDiffers	2	0
VGA (D-Sub) ports quantity	0	0
Headphone outputs	1	1
Microphone in	Yes	Yes
DC-in jackKnown for one	Yes	Unknown — not stated by the source
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Design1 differ
Product colourDiffers	Black, Silver	Black
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features6 differ
CPU configuration (max)	1	1
Embedded options availableDiffers	Yes	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	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	Yes	No
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	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
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® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	2.0	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	52213	53422
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
Weight & dimensions4 differ
Width (with stand)Differs	567.8 mm	506.8 mm
Depth (with stand)Differs	76.5 mm	107 mm
Height (with stand)Differs	426.7 mm	411 mm
Weight (with stand)Differs	10.1 kg	8.85 kg
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other features2 differ
Graphics card familyDiffers	Intel, NVIDIA	Intel
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Power supplyKnown for one	250 W	Unknown — not stated by the source
Storage drive interfaceDiffers	Serial ATA	Serial ATA II
Chassis typeKnown for one	Unknown — not stated by the source	All-in-One
Modem typeKnown for one	Unknown — not stated by the source	None
Number of slotsKnown for one	Unknown — not stated by the source	1
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® H61
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	150 W
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 35 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 60 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	20 - 80%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	20 - 80%

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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