Product comparison · 2 laptops

Acer TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop vs Dell Inspiron 14-3451 Intel® Celeron® N2840 Laptop

144specifications compared
75differ
69identical
73known for one product only

Key differences

Display resolution
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:1920 x 1080 pixels
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:1366 x 768 pixels
Processor family
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:Intel® Core™ i7
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:Intel® Celeron®
Processor model
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:i7-5500U
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:N2840
Processor threads
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:4
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:2
Processor boost frequency
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:3 GHz
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:2.58 GHz
Processor frequency
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:2.4 GHz
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:2.16 GHz
Processor cache
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:4 MB
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:1 MB
Processor cache type
- TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop:L3
- Inspiron 14-3451 Intel® Celeron® N2840 Laptop:L2

Side by side

Differences highlightedShow differences only

Comparison of P645-SG-709F, 14-3451
217 specifications	A Acer TravelMate P6 P645-SG-709F Intel® Core™ i7 i7-5500U Laptop Model P645-SG-709F View product	B Dell Inspiron 14-3451 Intel® Celeron® N2840 Laptop Model 14-3451 View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Market positioningKnown for one	Unknown — not stated by the source	Business
Display1 differ
Display diagonal	35.6 cm (14")	35.6 cm (14")
Display resolutionDiffers	1920 x 1080 pixels	1366 x 768 pixels
Touchscreen	No	No
HD typeKnown for one	Full HD	Unknown — not stated by the source
Panel typeKnown for one	IPS	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Matt	Unknown — not stated by the source
Pixel pitchKnown for one	Unknown — not stated by the source	0.2520 x 0.2520 mm
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Celeron®
Processor generationKnown for one	5th gen Intel® Core™ i7	Unknown — not stated by the source
Processor modelDiffers	i7-5500U	N2840
Processor cores	2	2
Processor threadsDiffers	4	2
Processor boost frequencyDiffers	3 GHz	2.58 GHz
Processor frequencyDiffers	2.4 GHz	2.16 GHz
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	4 MB	1 MB
Processor cache typeDiffers	L3	L2
Processor socketDiffers	BGA 1168	BGA 1170
Processor lithographyDiffers	14 nm	22 nm
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Core i7-5500 Mobile Series	Intel Celeron Processor N2000 Series for Mobile
Processor codenameDiffers	Broadwell	Bay Trail
Bus typeKnown for one	DMI2	Unknown — not stated by the source
FSB Parity	No	No
SteppingDiffers	F0	C0
Thermal Design Power (TDP)Differs	15 W	7.5 W
Configurable TDP-downKnown for one	7.5 W	Unknown — not stated by the source
Configurable TDP-down frequencyKnown for one	0.6 GHz	Unknown — not stated by the source
TjunctionDiffers	105 °C	100 °C
Maximum number of PCI Express lanesDiffers	12	4
PCI Express configurationsDiffers	4x1, 2x4	1x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	4.5 W
Memory5 differ
Internal memoryDiffers	8 GB	2 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR3L-SDRAM
Memory form factorDiffers	On-board + SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	2 x 4 GB	1 x 2 GB
Memory slots	1x SO-DIMM	1x SO-DIMM
Maximum internal memoryDiffers	12 GB	4 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Maximum internal memory (64-bit)Known for one	Unknown — not stated by the source	4 GB
Storage4 differ
Total storage capacityDiffers	1.25 TB	500 GB
Storage mediaDiffers	HDD+SSD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	1 TB	500 GB
HDD interfaceDiffers	SATA	SATA II
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
Number of SSDs installedKnown for one	1	Unknown — not stated by the source
SSD capacityKnown for one	256 GB	Unknown — not stated by the source
Optical drive type	No	No
Card reader integrated	Yes	Yes
Compatible memory cards	SD	SD
Graphics5 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	NVIDIA® GeForce® 840M	Not available
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Discrete graphics memory typeKnown for one	GDDR3	Unknown — not stated by the source
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 5500	Intel® HD Graphics
Maximum on-board graphics card memoryKnown for one	16 GB	Unknown — not stated by the source
On-board graphics card base frequencyDiffers	300 MHz	311 MHz
On-board graphics card dynamic frequency (max)Differs	950 MHz	792 MHz
On-board graphics card DirectX versionKnown for one	11.2	Unknown — not stated by the source
On-board graphics card IDKnown for one	0x1616	Unknown — not stated by the source
Number of discrete graphics cards installedKnown for one	1	Unknown — not stated by the source
Number of discrete graphics cards supportedKnown for one	1	Unknown — not stated by the source
Graphics card Open GL supportKnown for one	Yes	Unknown — not stated by the source
On-board graphics card burst frequencyKnown for one	Unknown — not stated by the source	792 MHz
Audio1 differ
Audio systemDiffers	HD	MaxxAudio
Number of built-in speakers	2	2
Built-in microphone	Yes	Yes
Speakers manufacturerKnown for one	Unknown — not stated by the source	Waves
Cameraidentical
Front camera	Yes	Yes
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	0.92 MP
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Video capturing speedKnown for one	Unknown — not stated by the source	30 fps
Optical driveidentical
LightScribe	No	No
Network2 differ
Mobile network connectionKnown for one	Yes	Unknown — not stated by the source
Mobile network generationKnown for one	3G	Unknown — not stated by the source
Wi-Fi	Yes	Yes
Top Wi-Fi standardKnown for one	Wi-Fi 5 (802.11ac)	Unknown — not stated by the source
Wi-Fi standardsDiffers	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LANDiffers	Yes	No
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Bluetooth	Yes	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	4.0
Ports & interfaces8 differ
USB 2.0 ports quantityDiffers	0	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	3	1
Ethernet LAN (RJ-45) portsDiffers	1	0
HDMI ports quantity	1	1
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	1	0
Thunderbolt ports quantity	0	0
Headphone outputsDiffers	1	0
S/PDIF out port	No	No
Combo headphone/mic portDiffers	No	Yes
Microphone inDiffers	Yes	No
Docking connectorDiffers	Yes	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	2
Performanceidentical
Motherboard chipsetKnown for one	Intel SoC	Unknown — not stated by the source
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Full-size keyboard	Yes	Yes
Windows keys	Yes	Yes
Spill-resistant keyboardKnown for one	Unknown — not stated by the source	Yes
Keyboard languageKnown for one	Unknown — not stated by the source	Italian
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 8.1
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Recovery operating systemKnown for one	Windows 8.1 Pro	Unknown — not stated by the source
Trial softwareKnown for one	Unknown — not stated by the source	Microsoft Office
Processor special features23 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyDiffers	14 nm	22 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	Yes	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	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 Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) versionKnown for one	1.00	Unknown — not stated by the source
Intel Smart Connect TechnologyDiffers	No	Yes
Intel Smart Response Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)Known for one	No	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP) versionKnown for one	0.00	Unknown — not stated by the source
Intel TSX-NIKnown for one	No	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	0.00	Unknown — not stated by the source
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Active Management Technology (Intel® AMT)	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® High Definition Audio (Intel® HD Audio)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® Matrix Storage Technology (Intel® MST)	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® OS GuardKnown for one	Yes	Unknown — not stated by the source
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start Technology	No	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Differs	Yes	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Smart Response TechnologyDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	2.0	No
Intel® Virtualization Technology (Intel® VT)Differs	VT-d, VT-x	VT-x
Processor ARK IDDiffers	85214	82103
Processor codeDiffers	SR23W	SR1YJ
Processor package sizeDiffers	40 x 24 x 1.3 mm	25 x 27 mm
Supported instruction setsKnown for one	AVX 2.0, SSE4.1, SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesDiffers	Yes	No
Conflict-Free processor	Yes	Yes
Intel Smart Connect Technology versionKnown for one	Unknown — not stated by the source	1.00
Battery2 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	3	4
Battery capacityKnown for one	54 Wh	Unknown — not stated by the source
Battery life (max)Known for one	8 h	Unknown — not stated by the source
Battery voltageKnown for one	Unknown — not stated by the source	14.80 V
Battery recharge timeKnown for one	Unknown — not stated by the source	4 h
Power1 differ
AC adapter powerDiffers	65 W	45 W
DC-in jack	Yes	Yes
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
AC adapter output voltageKnown for one	Unknown — not stated by the source	19.5 V
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Trusted Platform Module (TPM)Known for one	Yes	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	EPEAT Gold, ENERGY STAR	EPEAT Bronze, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	1.5 kg	1.9 kg
WidthDiffers	329 mm	345 mm
DepthDiffers	235 mm	243 mm
HeightDiffers	20.8 mm	21.4 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Cables includedKnown for one	AC	Unknown — not stated by the source
Power cord included	Yes	Yes
ManualKnown for one	Unknown — not stated by the source	Yes
Other features1 differ
3DKnown for one	No	Unknown — not stated by the source
Intel segment taggingDiffers	Enterprise, Industrial	Home office
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 35 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 65 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 95%
Operating altitudeKnown for one	Unknown — not stated by the source	-15.2 - 3048 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-15.2 - 10668 m
Operating shockKnown for one	Unknown — not stated by the source	110 G
Non-operating shockKnown for one	Unknown — not stated by the source	160 G
Operating vibrationKnown for one	Unknown — not stated by the source	0.66 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	1.30 G

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 laptop comparisons

All laptop comparisons