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 resolution	1920 x 1080 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD type	Full HD	Full HD
Full HD	Yes	Yes
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i3
Processor modelDiffers	G645	i3-3220
Processor cores	2	2
Processor threadsDiffers	2	4
Processor frequencyDiffers	2.9 GHz	3.3 GHz
Processor cache	3 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	65 W	55 W
Bus type	DMI	DMI
CPU multiplier (bus/core ratio)Differs	29	33
FSB Parity	No	No
PCI Express slots version	2.0	2.0
Processor codeKnown for one	SR0RS	Unknown — not stated by the source
Processor codenameDiffers	Sandy Bridge	Ivy Bridge
Processor lithographyDiffers	32 nm	22 nm
Processor operating modes	64-bit	64-bit
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
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
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
Memory channels supported by processor	Dual	Dual
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
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Maximum internal memory	8 GB	8 GB
Memory slots	2	2
Memory slots type	SO-DIMM	SO-DIMM
Memory clock speedKnown for one	1600 MHz	Unknown — not stated by the source
Storage3 differ
Total storage capacity	1 TB	1 TB
Storage media	HDD	HDD
Number of storage drives installed	1	1
Number of HDDs installed	1	1
HDD speedDiffers	7200 RPM	5400 RPM
HDD interfaceDiffers	SATA II	SATA
Optical drive typeDiffers	DVD±RW	DVD-RW
Card reader integrated	Yes	Yes
Compatible memory cards	Memory Stick (MS), MMC, MS PRO, SD, SDHC, SDXC	Memory Stick (MS), MMC, MS PRO, SD, SDHC, SDXC
Graphics4 differ
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
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
Built-in speaker(s)	Yes	Yes
RMS rated powerKnown for one	6 W	Unknown — not stated by the source
Built-in microphone	Yes	Yes
Audio system	HD	HD
Cameraidentical
Built-in camera	Yes	Yes
Total megapixelsKnown for one	1 MP	Unknown — not stated by the source
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
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Ports & interfaces1 differ
Ethernet LAN (RJ-45) ports	1	1
USB 2.0 ports quantityDiffers	6	4
VGA (D-Sub) ports quantity	0	0
Headphone outputs	1	1
Microphone in	Yes	Yes
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 installed	Windows 8	Windows 8
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Processor special features12 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 TechnologyDiffers	Yes	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 Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	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)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	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® 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® Turbo Boost Technology	No	No
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
Processor ARK IDDiffers	69116	65693
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsDiffers	SSE4.1, SSE4.2	AVX, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
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
Certificatesidentical
Compliance certificates	RoHS	RoHS
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
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.

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