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

Lenovo ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S vs Lenovo IdeaCentre B520

118specifications compared
35differ
83identical
40known for one product only

Key differences

Display diagonal
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:54.6 cm (21.5")
- IdeaCentre B520:58.4 cm (23")
Display brightness
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:250 cd/m²
- IdeaCentre B520:300 cd/m²
Processor family
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:Intel® Core™ i5
- IdeaCentre B520:Intel® Core™ i7
Processor generation
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:2nd gen Intel® Core™ i5
- IdeaCentre B520:2nd gen Intel® Core™ i7
Processor model
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:i5-2400S
- IdeaCentre B520:i7-2600
Processor threads
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:4
- IdeaCentre B520:8
Processor boost frequency
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:3.3 GHz
- IdeaCentre B520:3.8 GHz
Processor frequency
- ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S:2.5 GHz
- IdeaCentre B520:3.4 GHz

Side by side

Differences highlightedShow differences only

Comparison of 91z, IdeaCentre B520
158 specifications	A Lenovo ThinkCentre Edge 91z Intel® Core™ i5 i5-2400S Model 91z View product	B Lenovo IdeaCentre B520 View product
Display2 differ
Display diagonalDiffers	54.6 cm (21.5")	58.4 cm (23")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
HD type	Full HD	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessDiffers	250 cd/m²	300 cd/m²
Contrast ratio (typical)Known for one	1000:1	Unknown — not stated by the source
TouchscreenKnown for one	Unknown — not stated by the source	Yes
Full HDKnown for one	Unknown — not stated by the source	Yes
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i7
Processor modelDiffers	i5-2400S	i7-2600
Processor cores	4	4
Processor threadsDiffers	4	8
Processor boost frequencyDiffers	3.3 GHz	3.8 GHz
Processor frequencyDiffers	2.5 GHz	3.4 GHz
Processor cacheDiffers	6 MB	8 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
Thermal Design Power (TDP)Differs	65 W	95 W
Bus type	DMI	DMI
CPU multiplier (bus/core ratio)Differs	31	34
FSB Parity	No	No
Maximum number of PCI Express lanes	16	16
PCI Express slots version	2.0	2.0
Processor codename	Sandy Bridge	Sandy Bridge
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-2400 Desktop Series	Intel Core i7-2600 Desktop Series
Stepping	D2	D2
TcaseDiffers	69.1 °C	72.6 °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
64-bit computingKnown for one	Unknown — not stated by the source	Yes
Processor codeKnown for one	Unknown — not stated by the source	SR00B
Memory2 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Maximum internal memoryDiffers	8 GB	16 GB
Memory clock speed	1333 MHz	1333 MHz
Memory layout (slots x size)Known for one	1 x 4 GB	Unknown — not stated by the source
Memory slotsKnown for one	Unknown — not stated by the source	4
Memory slots typeKnown for one	Unknown — not stated by the source	SO-DIMM
Storage3 differ
Total storage capacityDiffers	500 GB	2 TB
Number of HDDs installed	1	1
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
HDD speed	7200 RPM	7200 RPM
HDD interfaceDiffers	SATA III	SATA
Optical drive typeDiffers	DVD-RW	Blu-Ray ROM
Card reader integrated	Yes	Yes
Storage mediaKnown for one	Unknown — not stated by the source	HDD
Number of storage drives installedKnown for one	Unknown — not stated by the source	1
Compatible memory cardsKnown for one	Unknown — not stated by the source	Memory Stick (MS), MMC, MS PRO, SD, SDHC, SDXC
Graphics2 differ
Discrete graphics card modelDiffers	Not available	NVIDIA® GeForce® GT 555M
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	1100 MHz	1350 MHz
On-board graphics card ID	0x102	0x102
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	1 GB
Audio1 differ
Built-in microphone	Yes	Yes
Audio systemDiffers	HD	SRS Premium Sound
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
RMS rated powerKnown for one	Unknown — not stated by the source	15 W
Cameraidentical
Built-in camera	Yes	Yes
Total megapixelsKnown for one	Unknown — not stated by the source	0.3 MP
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	No	No
Ports & interfaces4 differ
Ethernet LAN (RJ-45) ports	1	1
USB 2.0 ports quantityDiffers	6	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	2
HDMI ports quantityDiffers	1	2
VGA (D-Sub) ports quantityDiffers	1	0
DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
Headphone outputs	1	1
Microphone in	Yes	Yes
DC-in jack	Yes	Yes
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Black	Black, Silver
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® B65 Express	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Processor special features3 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 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 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® 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)Differs	No	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 Technology	2.0	2.0
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	52208	52213
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 & dimensions3 differ
Width (with stand)Differs	545 mm	567.8 mm
Depth (with stand)Differs	81 mm	76.5 mm
Height (with stand)Differs	414 mm	426.7 mm
Weight (with stand)Known for one	Unknown — not stated by the source	10.1 kg
Certificatesidentical
Compliance certificates	RoHS	RoHS
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Other features2 differ
Graphics card familyDiffers	Intel	Intel, NVIDIA
BD interface typeKnown for one	SATA	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Chassis typeKnown for one	All-in-One	Unknown — not stated by the source
DisplayKnown for one	LCD	Unknown — not stated by the source
Display includedKnown for one	Yes	Unknown — not stated by the source
Megapixel (approx.)Known for one	2 MP	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	0	Unknown — not stated by the source
Number of processors installedKnown for one	1	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Power supplyDiffers	150 W	250 W
SpeakersKnown for one	Yes	Unknown — not stated by the source
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Storage drive interfaceKnown for one	Unknown — not stated by the source	Serial ATA

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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