Product comparison · 2 laptops

Acer TravelMate 7740-353G25Mn vs Lenovo Essential B550

105specifications compared
44differ
61identical
44known for one product only

Key differences

Display diagonal
- TravelMate 7740-353G25Mn:43.9 cm (17.3")
- Essential B550:39.6 cm (15.6")
Display resolution
- TravelMate 7740-353G25Mn:1600 x 900 pixels
- Essential B550:1366 x 768 pixels
Processor family
- TravelMate 7740-353G25Mn:Intel® Core™ i3
- Essential B550:Intel® Pentium® Dual-Core
Processor model
- TravelMate 7740-353G25Mn:i3-350M
- Essential B550:T4400
Processor threads
- TravelMate 7740-353G25Mn:4
- Essential B550:2
Processor frequency
- TravelMate 7740-353G25Mn:2.26 GHz
- Essential B550:2.2 GHz
Processor cache
- TravelMate 7740-353G25Mn:3 MB
- Essential B550:1 MB
Processor cache type
- TravelMate 7740-353G25Mn:Smart Cache
- Essential B550:L2

Side by side

Differences highlightedShow differences only

Comparison of TravelMate 7740-353G25Mn, Essential B550
149 specifications	A Acer TravelMate 7740-353G25Mn View product	B Lenovo Essential B550 View product
Designidentical
Product colour	Black	Black
Display2 differ
Display diagonalDiffers	43.9 cm (17.3")	39.6 cm (15.6")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
Processor15 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Pentium® Dual-Core
Processor generationKnown for one	3rd gen Intel® Core™ i3	Unknown — not stated by the source
Processor modelDiffers	i3-350M	T4400
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.26 GHz	2.2 GHz
System bus rateKnown for one	2.5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	3 MB	1 MB
Processor cache typeDiffers	Smart Cache	L2
Processor socketDiffers	BGA 1288	Socket 478
Processor lithographyDiffers	32 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-300 Mobile Series	Intel Pentium T4000 Series for Mobile
Processor codenameDiffers	Arrandale	Penryn
Bus typeDiffers	DMI	FSB
FSB Parity	No	No
SteppingDiffers	C2	R0
Thermal Design Power (TDP)	35 W	35 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Number of Processing Die TransistorsDiffers	382 M	410 M
Processing Die sizeDiffers	81 mm²	107 mm²
CPU multiplier (bus/core ratio)Differs	17	11
ECC supported by processor	No	No
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Memory2 differ
Internal memoryDiffers	3 GB	1 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	1 x 1 + 1 x 2 GB	1 x 1 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Memory clock speedKnown for one	Unknown — not stated by the source	1066 MHz
Maximum internal memoryKnown for one	Unknown — not stated by the source	4 GB
Storage1 differ
Total storage capacityDiffers	250 GB	320 GB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive type	DVD Super Multi DL	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MS PRO, SD, xD	Unknown — not stated by the source
Graphicsidentical
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
Graphics card family	Intel	Intel
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	500 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	667 MHz	Unknown — not stated by the source
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA 4500M
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Number of built-in speakers	2	2
Speaker powerKnown for one	Unknown — not stated by the source	4 W
Audio system direct 3D soundKnown for one	Unknown — not stated by the source	Yes
Camera1 differ
Front camera resolution (numeric)Differs	1.3 MP	0.3 MP
Network1 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Gigabit Ethernet	Fast Ethernet, WLAN
Bluetooth	Yes	Yes
Bluetooth versionKnown for one	3.0+HS	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slotDiffers	Yes	No
TV-in port	No	No
TV-out	No	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
eSATA ports quantityKnown for one	Unknown — not stated by the source	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	0
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	0
PS/2 ports quantityKnown for one	Unknown — not stated by the source	0
Parallel ports quantityKnown for one	Unknown — not stated by the source	0
Serial ports quantityKnown for one	Unknown — not stated by the source	0
Performance1 differ
Motherboard chipsetDiffers	Intel® HM55 Express	Intel® GL40 Express
Keyboardidentical
Pointing device	Touchpad	Touchpad
Software1 differ
Operating system installedDiffers	Windows 7 Professional	FreeDOS
Bundled softwareKnown for one	Acer Crystal Eye, Acer Launch Manager, Acer Video Conference Manager, Adobe Flash Player, Adobe Reader, Corel WinDVD, eSobi, Google Toolbar, Microsoft Silverlight, Norton Online Backup, NTI Media Maker, Skype, Windows Live Essentials	Unknown — not stated by the source
Processor special features14 differ
Intel® Wireless Display (Intel® WiDi)	No	No
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	Yes	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	Yes	No
Intel Flex Memory AccessDiffers	Yes	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
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)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost Technology	No	No
Physical Address Extension (PAE)Known for one	36 bit	Unknown — not stated by the source
Processor ARK IDDiffers	43529	40739
Processor codeDiffers	SLBPL	SLGJL
Processor package sizeDiffers	rPGA 37.5x 37.5, BGA 34x28	35 x 35 mm
Supported instruction setsKnown for one	SSE4.1, SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesDiffers	Yes	No
Conflict-Free processor	No	No
Battery1 differ
Number of battery cells	6	6
Battery life (max)Differs	3.5 h	4 h
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Password protection typeKnown for one	Unknown — not stated by the source	BIOS
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions3 differ
WeightDiffers	2.9 kg	2.7 kg
WidthDiffers	410 mm	381 mm
DepthDiffers	275 mm	245 mm
Height (front)Known for one	2.5 cm	Unknown — not stated by the source
Height (rear)Known for one	3.55 cm	Unknown — not stated by the source
HeightKnown for one	Unknown — not stated by the source	36 mm
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	381 x 245 x 36 mm
Other featuresidentical
Infrared data port	No	No
Internal modem	No	No
TV tuner integrated	No	No
Supplied AC adapter type	AC	AC
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes

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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