Product comparison · 2 laptops

Lenovo ThinkPad W520 Intel® Core™ i7 i7-2820QM vs Samsung SF SF311-S02SE Intel® Core™ i3 i3-2310M

131specifications compared
48differ
83identical
56known for one product only

Key differences

Product colour
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:Black
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:Black, Silver
Display diagonal
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:39.6 cm (15.6")
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:33.8 cm (13.3")
Display resolution
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:1920 x 1080 pixels
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:1366 x 768 pixels
Processor family
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:Intel® Core™ i7
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:Intel® Core™ i3
Processor generation
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:2nd gen Intel® Core™ i7
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:2nd gen Intel® Core™ i3
Processor model
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:i7-2820QM
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:i3-2310M
Processor cores
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:4
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:2
Processor threads
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:8
- SF SF311-S02SE Intel® Core™ i3 i3-2310M:4

Side by side

Differences highlightedShow differences only

Comparison of W520, SF311-S02SE
187 specifications	A Lenovo ThinkPad W520 Intel® Core™ i7 i7-2820QM Model W520 View product	B Samsung SF SF311-S02SE Intel® Core™ i3 i3-2310M Model SF311-S02SE View product
Design1 differ
Product colourDiffers	Black	Black, Silver
Display2 differ
Display diagonalDiffers	39.6 cm (15.6")	33.8 cm (13.3")
Display resolutionDiffers	1920 x 1080 pixels	1366 x 768 pixels
HD typeKnown for one	Full HD	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
TouchscreenKnown for one	Unknown — not stated by the source	No
Processor13 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i3
Processor generationDiffers	2nd gen Intel® Core™ i7	2nd gen Intel® Core™ i3
Processor modelDiffers	i7-2820QM	i3-2310M
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequencyKnown for one	3.4 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.3 GHz	2.1 GHz
Processor cacheDiffers	8 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor front side busKnown for one	1600 MHz	Unknown — not stated by the source
Processor socketDiffers	Socket 1224	BGA 1023
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-2800 Mobile Series	Intel Core i3-2300 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
SteppingDiffers	D2	J1
Thermal Design Power (TDP)Differs	45 W	35 W
TjunctionDiffers	100 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	21
ECC supported by processor	No	No
System bus rateKnown for one	Unknown — not stated by the source	5 GT/s
Memory1 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedKnown for one	1333 MHz	Unknown — not stated by the source
Memory slotsKnown for one	4x SO-DIMM	Unknown — not stated by the source
Memory slots (available)Known for one	2	Unknown — not stated by the source
Maximum internal memoryKnown for one	32 GB	Unknown — not stated by the source
Memory layout (slots x size)Known for one	Unknown — not stated by the source	2 x 2 GB
Storage5 differ
Total storage capacityDiffers	500 GB	320 GB
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	320 GB
HDD interface	SATA	SATA
HDD speedDiffers	7200 RPM	5400 RPM
Optical drive typeDiffers	DVD-RW	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MMC	MMC, SD, SDHC, SDXC
Graphics3 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® Quadro® 2000M	NVIDIA® GeForce® GT 520M
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Graphics card familyDiffers	Intel, NVIDIA	NVIDIA
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 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	1300 MHz	1100 MHz
On-board graphics card ID	0x116	0x116
Number of discrete graphics cardsKnown for one	1	Unknown — not stated by the source
Maximum resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Audio1 differ
Number of built-in speakers	2	2
Speaker powerDiffers	1 W	1.5 W
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Audio systemKnown for one	Unknown — not stated by the source	HD
Built-in subwooferKnown for one	Unknown — not stated by the source	No
Audio system direct 3D soundKnown for one	Unknown — not stated by the source	Yes
Networkidentical
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wireless technologyKnown for one	Wi-Fi	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11a, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Bluetooth	No	No
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
WWANKnown for one	Unknown — not stated by the source	Not installed
Data networkKnown for one	Unknown — not stated by the source	Not supported
4G WiMAXKnown for one	Unknown — not stated by the source	No
Ports & interfaces4 differ
USB 2.0 ports quantity	1	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
eSATA/USB 2.0 ports quantityDiffers	1	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	0	1
DisplayPorts quantityDiffers	1	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
TV-out	No	No
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	0
SmartCard slotKnown for one	Unknown — not stated by the source	No
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
Performanceidentical
Motherboard chipsetKnown for one	Intel® QM67 Express	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Touchpad + Scroll zone
Numeric keypadKnown for one	No	Unknown — not stated by the source
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard number of keysKnown for one	Unknown — not stated by the source	87
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Trial softwareKnown for one	Unknown — not stated by the source	Norton Internet Security
Bundled softwareKnown for one	Unknown — not stated by the source	Samsung Update Plus, Easy Display Manager, Easy Battery Manager, Easy Network Manager, Easy SpeedUp Manager, Adobe Acrobat Reader, Samsung Support Center
Processor special features7 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 TechnologyDiffers	Yes	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)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
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® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	52227	52220
Processor codeDiffers	SR00U	SR04S
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31.0 x 24.0 (BGA1224)	37.5 x 37.5 xrPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery1 differ
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Number of battery cellsDiffers	9	6
Battery life (max)Known for one	8.9 h	Unknown — not stated by the source
Power1 differ
AC adapter powerDiffers	170 W	60 W
DC-in jack	Yes	Yes
Security2 differ
Cable lock slot	Yes	Yes
Fingerprint readerDiffers	Yes	No
Password protection typeDiffers	HDD, Power on, Supervisor	BIOS, HDD
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	No
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	Unknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers	3.11 kg	2.06 kg
WidthDiffers	372.8 mm	331 mm
DepthDiffers	245.1 mm	236 mm
Height (front)Differs	3.16 cm	2.69 cm
Height (rear)Differs	3.58 cm	3.25 cm
Width (imperial)Known for one	37.3 cm (14.7")	Unknown — not stated by the source
Depth (imperial)Known for one	24.5 cm (9.65")	Unknown — not stated by the source
Height (front) (imperial)Known for one	3.2 cm (1.26")	Unknown — not stated by the source
Height (rear) (imperial)Known for one	3.58 cm (1.41")	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Remote control includedKnown for one	Unknown — not stated by the source	No
Other featuresidentical
Infrared data port	No	No
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Intel segment taggingKnown for one	Professional	Unknown — not stated by the source
Supplied AC adapter type	AC	AC
3DKnown for one	Unknown — not stated by the source	No
Intel Turbo MemoryKnown for one	Unknown — not stated by the source	0 GB
Internal modemKnown for one	Unknown — not stated by the source	No
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Optical driveidentical
Optical drive interfaceKnown for one	Unknown — not stated by the source	SATA

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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