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

Lenovo IdeaCentre A540 Intel® Core™ i5 i5-4258U vs Lenovo IdeaCentre A740 Intel® Core™ i5 i5-4258U

136specifications compared
12differ
124identical
20known for one product only

Key differences

Display diagonal
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:60.5 cm (23.8")
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:68.6 cm (27")
Internal memory type
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:DDR3L-SDRAM
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:DDR3-SDRAM
Ethernet LAN
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:Yes
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:No
Ethernet LAN (RJ-45) ports
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:1
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:0
Thunderbolt ports quantity
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:0
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:1
Width (with stand)
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:720 mm
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:810 mm
Depth (with stand)
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:190 mm
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:560 mm
Height (with stand)
- IdeaCentre A540 Intel® Core™ i5 i5-4258U:495 mm
- IdeaCentre A740 Intel® Core™ i5 i5-4258U:215 mm

Side by side

Differences highlightedShow differences only

Comparison of A540, A740
156 specifications	A Lenovo IdeaCentre A540 Intel® Core™ i5 i5-4258U Model A540 View product	B Lenovo IdeaCentre A740 Intel® Core™ i5 i5-4258U Model A740 View product
Display1 differ
Display diagonalDiffers	60.5 cm (23.8")	68.6 cm (27")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
Touchscreen	Yes	Yes
HD type	Full HD	Full HD
Full HD	Yes	Yes
LED backlight	Yes	Yes
Touch technology	Multi-touch	Multi-touch
Native aspect ratio	16:9	16:9
Panel typeKnown for one	IPS	Unknown — not stated by the source
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	4th gen Intel® Core™ i5	4th gen Intel® Core™ i5
Processor model	i5-4258U	i5-4258U
Processor cores	2	2
Processor threads	4	4
Processor boost frequency	2.9 GHz	2.9 GHz
Processor frequency	2.4 GHz	2.4 GHz
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1168	BGA 1168
64-bit computing	Yes	Yes
Thermal Design Power (TDP)	28 W	28 W
Bus type	DMI2	DMI2
FSB Parity	No	No
Maximum number of PCI Express lanes	12	12
PCI Express configurations	1x4, 2x4	1x4, 2x4
PCI Express slots version	2.0	2.0
Processor code	SR18A	SR18A
Processor codename	Haswell	Haswell
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i5-4200 Mobile series	Intel Core i5-4200 Mobile series
Stepping	C0	C0
Tjunction	100 °C	100 °C
Conflict-Free processor	Yes	Yes
Maximum internal memory supported by processor	16 GB	16 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	1333,1666 MHz	1333,1666 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s	25.6 GB/s
Memory channels supported by processor	Dual	Dual
ECC supported by processor	No	No
Memory1 differ
Internal memory	8 GB	8 GB
Internal memory typeDiffers	DDR3L-SDRAM	DDR3-SDRAM
Memory slots type	SO-DIMM	SO-DIMM
Memory clock speed	1600 MHz	1600 MHz
Maximum internal memoryKnown for one	Unknown — not stated by the source	8 GB
Memory slotsKnown for one	Unknown — not stated by the source	1
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 8 GB
Storageidentical
Total storage capacity	1 TB	1 TB
Storage media	Hybrid-HDD	Hybrid-HDD
Number of storage drives installedKnown for one	1	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacity	1 TB	1 TB
HDD speed	5400 RPM	5400 RPM
Hybrid-HDD cache typeKnown for one	SSD	Unknown — not stated by the source
Hybrid-HDD cache memoryKnown for one	8 GB	Unknown — not stated by the source
Optical drive type	No	No
Card reader integratedKnown for one	Yes	Unknown — not stated by the source
Graphicsidentical
Discrete graphics card model	NVIDIA® GeForce® GT 840M	NVIDIA® GeForce® GT 840M
Discrete graphics card memory	2 GB	2 GB
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® Iris™ Graphics	Intel® Iris™ Graphics
On-board graphics card model	Intel® Iris™ Graphics 5100	Intel® Iris™ Graphics 5100
Maximum on-board graphics card memory	1.74 GB	1.74 GB
Number of displays supported (on-board graphics)	3	3
On-board graphics card base frequency	200 MHz	200 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card DirectX version	11.1	11.1
On-board graphics card ID	0xA2E	0xA2E
Audioidentical
Built-in speaker(s)	Yes	Yes
Speakers manufacturerKnown for one	JBL	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Audio system	Dolby Home Theater	Dolby Home Theater
RMS rated powerKnown for one	Unknown — not stated by the source	10 W
Cameraidentical
Built-in camera	Yes	Yes
Total megapixelsKnown for one	Unknown — not stated by the source	2 MP
Network2 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LANDiffers	Yes	No
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers	1	0
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4	4
Thunderbolt ports quantityDiffers	0	1
HDMI ports quantity	1	1
VGA (D-Sub) ports quantity	0	0
Combo headphone/mic port	Yes	Yes
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Docking connector	No	No
S/PDIF out port	No	No
Total number of SATA connectors	4	4
Number of SATA III connectors	4	4
Headphone outputsKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Unknown — not stated by the source	Yes
Designidentical
Product colour	Silver	Silver
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Performanceidentical
Product type	All-in-One PC	All-in-One PC
Softwareidentical
Operating system installed	Windows 8.1	Windows 8.1
Operating system architecture	64-bit	64-bit
Operating system languageKnown for one	Unknown — not stated by the source	German
Processor special featuresidentical
CPU configuration (max)	1	1
Embedded options available	No	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	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology version	1.00	1.00
Intel ME Firmware Version	9.5	9.5
Intel Rapid Storage Technology	Yes	Yes
Intel Secure Key Technology version	1.00	1.00
Intel Smart Connect Technology	Yes	Yes
Intel Smart Connect Technology version	1.00	1.00
Intel TSX-NI	No	No
Intel TSX-NI version	0.00	0.00
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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
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® High Definition Audio (Intel® HD Audio)	Yes	Yes
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® Matrix Storage Technology (Intel® MST)	No	No
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
Processor ARK ID	75990	75990
Processor package size	40 x 24 x 1.5 mm	40 x 24 x 1.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Weight & dimensions4 differ
Width (with stand)Differs	720 mm	810 mm
Depth (with stand)Differs	190 mm	560 mm
Height (with stand)Differs	495 mm	215 mm
Weight (with stand)Differs	11.2 kg	12.7 kg
Packaging content2 differ
Mouse includedDiffers	Yes	No
Keyboard includedDiffers	Yes	No
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
3D	No	No
Autonomy modeKnown for one	No	Unknown — not stated by the source
Near Field Communication (NFC)	Yes	Yes
SmartCard slot	No	No

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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