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

Lenovo Edge 91z vs Lenovo IdeaCentre B520

110specifications compared
35differ
75identical
50known for one product only

Key differences

Display diagonal
- Edge 91z:54.6 cm (21.5")
- IdeaCentre B520:58.4 cm (23")
Processor family
- Edge 91z:Intel® Core™ i3
- IdeaCentre B520:Intel® Core™ i7
Processor generation
- Edge 91z:2nd gen Intel® Core™ i3
- IdeaCentre B520:2nd gen Intel® Core™ i7
Processor model
- Edge 91z:i3-2100
- IdeaCentre B520:i7-2600
Processor cores
- Edge 91z:2
- IdeaCentre B520:4
Processor threads
- Edge 91z:4
- IdeaCentre B520:8
Processor frequency
- Edge 91z:3.1 GHz
- IdeaCentre B520:3.4 GHz
Processor cache
- Edge 91z:3 MB
- IdeaCentre B520:8 MB

Side by side

Differences highlightedShow differences only

Comparison of Edge 91z, IdeaCentre B520
160 specifications	A Lenovo Edge 91z View product	B Lenovo IdeaCentre B520 View product
Display1 differ
Display diagonalDiffers	54.6 cm (21.5")	58.4 cm (23")
TouchscreenKnown for one	Unknown — not stated by the source	Yes
Full HDKnown for one	Unknown — not stated by the source	Yes
LED backlightKnown for one	Unknown — not stated by the source	Yes
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Display brightnessKnown for one	Unknown — not stated by the source	300 cd/m²
Processor12 differ
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i7
Processor modelDiffers	i3-2100	i7-2600
Processor coresDiffers	2	4
Processor threadsDiffers	4	8
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.8 GHz
Processor frequencyDiffers	3.1 GHz	3.4 GHz
Processor cacheDiffers	3 MB	8 MB
64-bit computingKnown for one	Unknown — not stated by the source	Yes
Thermal Design Power (TDP)Differs	35, 65	95 W
CPU multiplier (bus/core ratio)Differs	31	34
Processor codeKnown for one	Unknown — not stated by the source	SR00B
Processor seriesDiffers	Intel Core i3-2100 Desktop Series	Intel Core i7-2600 Desktop Series
SteppingDiffers	Q0	D2
TcaseDiffers	69.1 °C	72.6 °C
Memory2 differ
Internal memoryDiffers	4 GB	8 GB
Maximum internal memoryDiffers	8 GB	16 GB
Memory slotsKnown for one	Unknown — not stated by the source	4
Memory slots typeKnown for one	Unknown — not stated by the source	SO-DIMM
Memory layout (slots x size)Known for one	1 x 4 GB	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	500 GB	2 TB
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
Optical drive typeDiffers	DVD-RW	Blu-Ray ROM
Compatible memory cardsKnown for one	Unknown — not stated by the source	Memory Stick (MS), MMC, MS PRO, SD, SDHC, SDXC
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelKnown for one	Unknown — not stated by the source	NVIDIA® GeForce® GT 555M
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	1 GB
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1350 MHz
Audioidentical
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
Audio systemKnown for one	Unknown — not stated by the source	SRS Premium Sound
Number of speakersKnown for one	2	Unknown — not stated by the source
Audio system full duplexKnown for one	Yes	Unknown — not stated by the source
Cameraidentical
Total megapixelsKnown for one	Unknown — not stated by the source	0.3 MP
Network1 differ
Wi-Fi standardsDiffers	802.11b, 802.11g	802.11b, 802.11g, Wi-Fi 4 (802.11n)
BluetoothKnown for one	Unknown — not stated by the source	No
Ports & interfaces4 differ
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
DC-in jackKnown for one	Unknown — not stated by the source	Yes
DVI portKnown for one	No	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Mini PCI Express slotsKnown for one	1	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
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 7 Home Premium
Processor special features6 differ
Embedded options availableDiffers	No	Yes
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	53422	52213
Weight & dimensions3 differ
Width (with stand)Differs	542.2 mm	567.8 mm
Depth (with stand)Differs	414.3 mm	76.5 mm
Height (with stand)Differs	81 mm	426.7 mm
Weight (with stand)Known for one	Unknown — not stated by the source	10.1 kg
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Packaging contentidentical
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Keyboard layoutKnown for one	QWERTY	Unknown — not stated by the source
Other features1 differ
Graphics card familyDiffers	Intel	Intel, NVIDIA
Power supplyKnown for one	Unknown — not stated by the source	250 W
Storage drive interfaceKnown for one	Unknown — not stated by the source	Serial ATA
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
Compatible processor seriesKnown for one	Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7	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
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
SpeakersKnown for one	Yes	Unknown — not stated by the source
Wireless technologyKnown for one	Wi-Fi	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® B65 Express	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.

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