Product comparison · 2 laptops

Lenovo Essential B570e2 Intel® Core™ i3 i3-2350M vs Lenovo T520 + 55Y3711

129specifications compared
35differ
94identical
55known for one product only

Key differences

Display resolution
- Essential B570e2 Intel® Core™ i3 i3-2350M:1366 x 768 pixels
- T520 + 55Y3711:1600 x 900 pixels
HD type
- Essential B570e2 Intel® Core™ i3 i3-2350M:HD
- T520 + 55Y3711:HD+
Display brightness
- Essential B570e2 Intel® Core™ i3 i3-2350M:200 cd/m²
- T520 + 55Y3711:220 cd/m²
Processor family
- Essential B570e2 Intel® Core™ i3 i3-2350M:Intel® Core™ i3
- T520 + 55Y3711:Intel® Core™ i5
Processor generation
- Essential B570e2 Intel® Core™ i3 i3-2350M:2nd gen Intel® Core™ i3
- T520 + 55Y3711:2nd gen Intel® Core™ i5
Processor model
- Essential B570e2 Intel® Core™ i3 i3-2350M:i3-2350M
- T520 + 55Y3711:i5-2450M
Processor frequency
- Essential B570e2 Intel® Core™ i3 i3-2350M:2.3 GHz
- T520 + 55Y3711:2.5 GHz
Tjunction
- Essential B570e2 Intel® Core™ i3 i3-2350M:85 °C
- T520 + 55Y3711:100 °C

Side by side

Differences highlightedShow differences only

Comparison of B570e2, T520 + 55Y3711
184 specifications	A Lenovo Essential B570e2 Intel® Core™ i3 i3-2350M Model B570e2 View product	B Lenovo T520 + 55Y3711 View product
Designidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Form factorKnown for one	Clamshell	Unknown — not stated by the source
Housing materialKnown for one	Polycarbonate (PC)	Unknown — not stated by the source
Display3 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1600 x 900 pixels
TouchscreenKnown for one	No	Unknown — not stated by the source
HD typeDiffers	HD	HD+
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessDiffers	200 cd/m²	220 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i5
Processor modelDiffers	i3-2350M	i5-2450M
Processor cores	2	2
Processor threads	4	4
Processor frequencyDiffers	2.3 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketKnown for one	Socket 988	Unknown — not stated by the source
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-2300 Mobile Series	Intel Core i5-2400 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	J1	J1
Thermal Design Power (TDP)	35 W	35 W
TjunctionDiffers	85 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	23	25
ECC supported by processor	No	No
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.1 GHz
Memoryidentical
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage3 differ
Total storage capacity	500 GB	500 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacity	500 GB	500 GB
HDD interface	SATA	SATA
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Optical drive typeDiffers	DVD Super Multi DL	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, SDHC, xD	MMC, SD, SDHC, SDXC
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	No	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
Graphics card familyDiffers	Intel	Intel, NVIDIA
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 3000	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1150 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Audio2 differ
Audio systemDiffers	HD	High Definition Audio
Built-in speaker(s)Known for one	Yes	Unknown — not stated by the source
Number of built-in speakers	2	2
Speaker powerDiffers	1.5 W	1 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera resolution (numeric)Known for one	0.3 MP	Unknown — not stated by the source
Swivel webcamKnown for one	No	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Optical drive interfaceKnown for one	SATA	Unknown — not stated by the source
Network1 differ
Wi-Fi	Yes	Yes
Top Wi-Fi standardKnown for one	Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Wi-Fi data rate (max)Known for one	150 Mbit/s	Unknown — not stated by the source
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
BluetoothDiffers	No	Yes
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Network connection typeKnown for one	RJ-45	Unknown — not stated by the source
Networking standardsKnown for one	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u	Unknown — not stated by the source
Integrated 4G WiMAX	Yes	Yes
Mobile network connectionKnown for one	Unknown — not stated by the source	Yes
Mobile network generationKnown for one	Unknown — not stated by the source	3G
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Ports & interfaces3 differ
USB 2.0 ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 2.0 ports quantity	1	1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
eSATA ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
DisplayPorts quantityDiffers	0	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsDiffers	0	1
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
ExpressCard slotDiffers	No	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
TV-out	No	No
Docking connectorKnown for one	Unknown — not stated by the source	Yes
Performance1 differ
Motherboard chipsetDiffers	Intel® HM65 Express	Intel® QM67 Express
Keyboard2 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
Numeric keypadDiffers	Yes	No
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTY
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features5 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 lithography	32 nm	32 nm
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	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
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)	No	No
Intel® AES New Instructions (Intel® AES-NI)Differs	No	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® 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® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	53438	53452
Processor codeDiffers	SR0DN	SR04Z
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery1 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	6	6
Battery life (max)Differs	5.8 h	8.4 h
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
Power auto-sensingKnown for one	Yes	Unknown — not stated by the source
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	No	Yes
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Silver, ENERGY STAR	Unknown — not stated by the source
Weight & dimensions3 differ
WeightDiffers	2.35 kg	2.57 kg
WidthDiffers	378 mm	372.8 mm
DepthDiffers	252 mm	245.1 mm
HeightKnown for one	33.1 mm	Unknown — not stated by the source
Width (imperial)Known for one	37.9 cm (14.9")	Unknown — not stated by the source
Depth (imperial)Known for one	25.1 cm (9.9")	Unknown — not stated by the source
Height (imperial)Known for one	3.3 cm (1.3")	Unknown — not stated by the source
Height (front)Known for one	Unknown — not stated by the source	3.18 cm
Height (rear)Known for one	Unknown — not stated by the source	3.56 cm
Videoidentical
HD-ReadyKnown for one	Yes	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Cables includedKnown for one	AC	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Volume controlKnown for one	Digital	Unknown — not stated by the source
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business

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