Product comparison · 2 laptops

Acer Chromebook C740-C4PE Intel® Celeron® 3205U vs Lenovo N21 Intel® Celeron® N2840 Chromebook

117specifications compared
41differ
76identical
47known for one product only

Key differences

Processor model
- Chromebook C740-C4PE Intel® Celeron® 3205U:3205U
- N21 Intel® Celeron® N2840 Chromebook:N2840
Processor frequency
- Chromebook C740-C4PE Intel® Celeron® 3205U:1.5 GHz
- N21 Intel® Celeron® N2840 Chromebook:2.16 GHz
Processor cache
- Chromebook C740-C4PE Intel® Celeron® 3205U:2 MB
- N21 Intel® Celeron® N2840 Chromebook:1 MB
Processor cache type
- Chromebook C740-C4PE Intel® Celeron® 3205U:L3
- N21 Intel® Celeron® N2840 Chromebook:L2
Processor socket
- Chromebook C740-C4PE Intel® Celeron® 3205U:BGA 1168
- N21 Intel® Celeron® N2840 Chromebook:BGA 1170
Processor lithography
- Chromebook C740-C4PE Intel® Celeron® 3205U:14 nm
- N21 Intel® Celeron® N2840 Chromebook:22 nm
Processor codename
- Chromebook C740-C4PE Intel® Celeron® 3205U:Broadwell
- N21 Intel® Celeron® N2840 Chromebook:Bay Trail
Stepping
- Chromebook C740-C4PE Intel® Celeron® 3205U:E0
- N21 Intel® Celeron® N2840 Chromebook:C0

Side by side

Differences highlightedShow differences only

Comparison of C740-C4PE, N21
164 specifications	A Acer Chromebook C740-C4PE Intel® Celeron® 3205U Model C740-C4PE View product	B Lenovo N21 Intel® Celeron® N2840 Chromebook Model N21 View product
Displayidentical
HD typeKnown for one	HD	Unknown — not stated by the source
Processor13 differ
Processor modelDiffers	3205U	N2840
Processor frequencyDiffers	1.5 GHz	2.16 GHz
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	2 MB	1 MB
Processor cache typeDiffers	L3	L2
Processor socketDiffers	BGA 1168	BGA 1170
Processor lithographyDiffers	14 nm	22 nm
Processor seriesDiffers	Intel Celeron Processor 3000 series for Mobile	Intel Celeron Processor N2000 Series for Mobile
Processor codenameDiffers	Broadwell	Bay Trail
Bus typeKnown for one	DMI2	Unknown — not stated by the source
SteppingDiffers	E0	C0
Thermal Design Power (TDP)Differs	15 W	7.5 W
Configurable TDP-downKnown for one	10 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	2x4, 4x1	1x4
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.58 GHz
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	4.5 W
Memory1 differ
Internal memoryDiffers	4 GB	2 GB
Maximum internal memoryKnown for one	Unknown — not stated by the source	4 GB
Storage1 differ
Number of HDDs installedKnown for one	0	Unknown — not stated by the source
Compatible memory cardsDiffers	SD	MMC, SD
Graphics2 differ
On-board graphics card base frequencyDiffers	100 MHz	311 MHz
On-board graphics card dynamic frequency (max)Differs	800 MHz	792 MHz
On-board graphics card DirectX versionKnown for one	11.2/12	Unknown — not stated by the source
Discrete graphics cardKnown for one	Unknown — not stated by the source	No
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Not available
On-board graphics card burst frequencyKnown for one	Unknown — not stated by the source	792 MHz
Audioidentical
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1 MP
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Network1 differ
Top Wi-Fi standardKnown for one	Wi-Fi 5 (802.11ac)	Unknown — not stated by the source
BluetoothDiffers	No	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	4.0
Ports & interfacesidentical
Ethernet LAN (RJ-45) portsKnown for one	0	Unknown — not stated by the source
Headphone outputsKnown for one	Unknown — not stated by the source	0
Combo headphone/mic portKnown for one	Unknown — not stated by the source	Yes
Microphone inKnown for one	Unknown — not stated by the source	No
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	2
Keyboardidentical
Windows keysKnown for one	Yes	Unknown — not stated by the source
Processor special features16 differ
Graphics & IMC lithographyDiffers	14 nm	22 nm
Intel Clear Video TechnologyDiffers	Yes	No
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 Small Business Advantage (SBA) versionKnown for one	0.00	Unknown — not stated by the source
Intel Smart Response Technology versionKnown for one	0.00	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 VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	Yes	No
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® OS GuardKnown for one	No	Unknown — not stated by the source
Intel® Virtualization Technology (Intel® VT)Differs	VT-d, VT-x	VT-x
Processor ARK IDDiffers	84809	82103
Processor codeDiffers	SR215	SR1YJ
Processor package sizeDiffers	40 x 24 x 1.3 mm	25 x 27 mm
Supported instruction setsKnown for one	SSE4.1, SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel Smart Connect TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Smart Connect Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	No
Intel® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Battery1 differ
Battery capacityDiffers	3920 mAh	36 Wh
Battery life (max)Known for one	Unknown — not stated by the source	9.5 h
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
Security1 differ
Cable lock slotDiffers	No	Yes
Fingerprint readerKnown for one	No	Unknown — not stated by the source
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	Yes
Weight & dimensions4 differ
WeightDiffers	1.3 kg	1.29 kg
WidthDiffers	287 mm	300 mm
DepthDiffers	203.2 mm	215 mm
HeightDiffers	20.3 mm	22.4 mm
Height (front)Known for one	2 cm	Unknown — not stated by the source
Height (rear)Known for one	2 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Intel segment taggingDiffers	Education	Education, Industrial

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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