Product comparison · 2 laptops

HP 15-r256tu Intel® Celeron® N2840 Laptop vs Lenovo IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop

137specifications compared
58differ
79identical
57known for one product only

Key differences

Product colour
- 15-r256tu Intel® Celeron® N2840 Laptop:Black, Grey
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:White
Display resolution
- 15-r256tu Intel® Celeron® N2840 Laptop:1366 x 768 pixels
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:1920 x 1080 pixels
HD type
- 15-r256tu Intel® Celeron® N2840 Laptop:HD
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:Full HD
Processor family
- 15-r256tu Intel® Celeron® N2840 Laptop:Intel® Celeron®
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:Intel® Core™ i5
Processor model
- 15-r256tu Intel® Celeron® N2840 Laptop:N2840
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:i5-5200U
Processor threads
- 15-r256tu Intel® Celeron® N2840 Laptop:2
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:4
Processor boost frequency
- 15-r256tu Intel® Celeron® N2840 Laptop:2.58 GHz
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:2.7 GHz
Processor frequency
- 15-r256tu Intel® Celeron® N2840 Laptop:2.16 GHz
- IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop:2.2 GHz

Side by side

Differences highlightedShow differences only

Comparison of 15-r256tu, Z51-70
194 specifications	A HP 15-r256tu Intel® Celeron® N2840 Laptop Model 15-r256tu View product	B Lenovo IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop Model Z51-70 View product
Design1 differ
Product type	Laptop	Laptop
Product colourDiffers	Black, Grey	White
Form factor	Clamshell	Clamshell
Housing materialKnown for one	Unknown — not stated by the source	Polycarbonate (PC)
Country of originKnown for one	China	Unknown — not stated by the source
Display2 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD typeDiffers	HD	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Gloss	Unknown — not stated by the source
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Celeron®	Intel® Core™ i5
Processor generationKnown for one	Unknown — not stated by the source	5th gen Intel® Core™ i5
Processor modelDiffers	N2840	i5-5200U
Processor cores	2	2
Processor threadsDiffers	2	4
Processor boost frequencyDiffers	2.58 GHz	2.7 GHz
Processor frequencyDiffers	2.16 GHz	2.2 GHz
System bus rateKnown for one	Unknown — not stated by the source	5 GT/s
Processor cacheDiffers	1 MB	3 MB
Processor cache typeDiffers	L2	Smart Cache
Processor socketDiffers	BGA 1170	BGA 1168
Processor lithographyDiffers	22 nm	14 nm
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Celeron Processor N2000 Series for Mobile	Intel® Core™ i5-5200 Mobile Series
Processor codenameDiffers	Bay Trail	Broadwell
Bus typeKnown for one	Unknown — not stated by the source	DMI2
FSB Parity	No	No
SteppingDiffers	C0	F0
Thermal Design Power (TDP)Differs	7.5 W	15 W
Configurable TDP-downKnown for one	Unknown — not stated by the source	7.5 W
Configurable TDP-down frequencyKnown for one	Unknown — not stated by the source	0.6 GHz
TjunctionDiffers	100 °C	105 °C
Maximum number of PCI Express lanesDiffers	4	12
PCI Express configurationsDiffers	1x4	4x1, 2x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
Scenario Design Power (SDP)Known for one	4.5 W	Unknown — not stated by the source
Memoryidentical
Internal memory	4 GB	4 GB
Internal memory type	DDR3L-SDRAM	DDR3L-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memoryKnown for one	Unknown — not stated by the source	16 GB
Maximum internal memory (64-bit)Known for one	Unknown — not stated by the source	16 GB
Memory layout (slots x size)Known for one	1 x 4 GB	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	500 GB	1 TB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	1 TB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
Optical drive type	DVD±RW	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	SD	MMC, SD, SDHC, SDXC
Graphics6 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	No	Yes
Discrete graphics card modelDiffers	Not available	AMD Radeon R7 M360
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	2 GB
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 5500
Maximum on-board graphics card memoryKnown for one	Unknown — not stated by the source	16 GB
On-board graphics card base frequencyDiffers	311 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	792 MHz	900 MHz
On-board graphics card DirectX versionKnown for one	Unknown — not stated by the source	11.2
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x1616
Number of discrete graphics cards installedDiffers	0	1
On-board graphics card burst frequencyKnown for one	792 MHz	Unknown — not stated by the source
Number of discrete graphics cards supportedKnown for one	1	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	Dolby Home Theater v4
Number of built-in speakers	2	2
Speaker powerKnown for one	Unknown — not stated by the source	2.5 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Network2 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10,100 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	2	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	1	2
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Thunderbolt ports quantity	0	0
Headphone outputs	0	0
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Microphone in	No	No
Docking connector	No	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Thunderbolt 2 ports quantityKnown for one	0	Unknown — not stated by the source
Total number of SATA connectorsKnown for one	2	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel SoC
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	Yes	Yes
Full-size keyboard	Yes	Yes
Windows keys	Yes	Yes
Island-style keyboardKnown for one	Yes	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 8.1	Windows 8.1
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Processor special features20 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	22 nm	14 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	No	Yes
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) versionKnown for one	Unknown — not stated by the source	1.00
Intel Smart Connect TechnologyDiffers	Yes	No
Intel Smart Response Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	No	Yes
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® OS GuardKnown for one	Unknown — not stated by the source	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	Yes
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Intel® Virtualization Technology (Intel® VT)Differs	VT-x	VT-d, VT-x
Processor ARK IDDiffers	82103	85212
Processor codeDiffers	SR1YJ	SR23Y
Processor package sizeDiffers	25 x 27 mm	40 x 24 x 1.3 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffers	No	Yes
Conflict-Free processor	Yes	Yes
Intel Smart Connect Technology versionKnown for one	1.00	Unknown — not stated by the source
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	4	4
Battery life (max)Known for one	Unknown — not stated by the source	4 h
Battery capacityKnown for one	41 Wh	Unknown — not stated by the source
Power1 differ
AC adapter powerDiffers	45 W	65 W
DC-in jack	Yes	Yes
AC adapter frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
AC adapter input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
Securityidentical
Cable lock slot	Yes	Yes
Password protection	Yes	Yes
Password protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainabilityidentical
Sustainability certificates	EPEAT Silver, ENERGY STAR	EPEAT Silver, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	2.23 kg	2.3 kg
WidthDiffers	378 mm	384 mm
DepthDiffers	259 mm	265 mm
HeightDiffers	25.3 mm	24.6 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Power cord included	Yes	Yes
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Disc types supportedKnown for one	CD, DVD	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	508 mm	Unknown — not stated by the source
Package depthKnown for one	76 mm	Unknown — not stated by the source
Package heightKnown for one	305 mm	Unknown — not stated by the source
Package weightKnown for one	3.09 kg	Unknown — not stated by the source
Other featuresidentical
3DKnown for one	No	Unknown — not stated by the source

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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