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

Lenovo Essential C440 vs Lenovo IdeaCentre C540

112specifications compared
41differ
71identical
30known for one product only

Key differences

Display diagonal
- Essential C440:54.6 cm (21.5")
- IdeaCentre C540:58.4 cm (23")
Processor family
- Essential C440:Intel® Pentium®
- IdeaCentre C540:Intel® Core™ i3
Processor model
- Essential C440:G645
- IdeaCentre C540:i3-3220
Processor threads
- Essential C440:2
- IdeaCentre C540:4
Processor frequency
- Essential C440:2.9 GHz
- IdeaCentre C540:3.3 GHz
Thermal Design Power (TDP)
- Essential C440:65 W
- IdeaCentre C540:55 W
CPU multiplier (bus/core ratio)
- Essential C440:29
- IdeaCentre C540:33
Processor codename
- Essential C440:Sandy Bridge
- IdeaCentre C540:Ivy Bridge

Side by side

Differences highlightedShow differences only

Comparison of Essential C440, IdeaCentre C540
142 specifications	A Lenovo Essential C440 View product	B Lenovo IdeaCentre C540 View product
Display1 differ
Display diagonalDiffers	54.6 cm (21.5")	58.4 cm (23")
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Processor14 differ
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i3
Processor modelDiffers	G645	i3-3220
Processor threadsDiffers	2	4
Processor frequencyDiffers	2.9 GHz	3.3 GHz
Thermal Design Power (TDP)Differs	65 W	55 W
CPU multiplier (bus/core ratio)Differs	29	33
Processor codeKnown for one	SR0RS	Unknown — not stated by the source
Processor codenameDiffers	Sandy Bridge	Ivy Bridge
Processor lithographyDiffers	32 nm	22 nm
Processor seriesDiffers	Intel Pentium G600 Series for Desktop	Intel Core i3-3200 Desktop Series
SteppingKnown for one	Q0	Unknown — not stated by the source
TcaseDiffers	69.1 °C	65.3 °C
Conflict-Free processorDiffers	No	Yes
Memory clock speeds supported by processorDiffers	1066 MHz	1333,1600 MHz
Memory bandwidth supported by processor (max)Differs	17 GB/s	25.6 GB/s
ECC supported by processorDiffers	No	Yes
Processor generationKnown for one	Unknown — not stated by the source	3rd gen Intel® Core™ i3
L3 cacheKnown for one	Unknown — not stated by the source	3 MB
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8
Memoryidentical
Memory clock speedKnown for one	1600 MHz	Unknown — not stated by the source
Storage3 differ
HDD speedDiffers	7200 RPM	5400 RPM
HDD interfaceDiffers	SATA II	SATA
Optical drive typeDiffers	DVD±RW	DVD-RW
Graphics4 differ
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 2500
Number of displays supported (on-board graphics)Differs	2	3
On-board graphics card base frequencyDiffers	850 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1050 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x152
Audioidentical
RMS rated powerKnown for one	6 W	Unknown — not stated by the source
Cameraidentical
Total megapixelsKnown for one	1 MP	Unknown — not stated by the source
Networkidentical
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	6	4
Mini PCI Express slotsKnown for one	2	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	2
HDMI ports quantityKnown for one	Unknown — not stated by the source	1
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Design1 differ
Product colourDiffers	Black	White
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® H61	Unknown — not stated by the source
Softwareidentical
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Processor special features12 differ
Embedded options availableDiffers	No	Yes
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
Processor ARK IDDiffers	69116	65693
Supported instruction setsDiffers	SSE4.1, SSE4.2	AVX, SSE4.1, SSE4.2
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Secure Key Technology versionKnown for one	Unknown — not stated by the source	0.00
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® Secure KeyKnown for one	Unknown — not stated by the source	No
Thermal solution specificationKnown for one	Unknown — not stated by the source	PCG 2011C
Poweridentical
AC adapter powerKnown for one	120 W	Unknown — not stated by the source
Weight & dimensions3 differ
Width (with stand)Differs	532 mm	556 mm
Depth (with stand)Differs	196 mm	197 mm
Height (with stand)Differs	407 mm	427 mm
Weight (with stand)Known for one	6.44 kg	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Packaging contentidentical
Cables includedKnown for one	AC	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
Compatible operating systemsKnown for one	Windows 8	Unknown — not stated by the source
Storage drive interfaceDiffers	Serial ATA II	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.

More all-in-one pcs/workstations comparisons

All all-in-one pcs/workstations comparisons