Product comparison · 2 laptops

Lenovo ThinkPad L520 Intel® Core™ i5 i5-2520M vs Lenovo ThinkPad R61 Intel® Core™2 Duo T7300 Laptop

108specifications compared
57differ
51identical
82known for one product only

Key differences

Display diagonal
- ThinkPad L520 Intel® Core™ i5 i5-2520M:39.6 cm (15.6")
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:35.8 cm (14.1")
Display resolution
- ThinkPad L520 Intel® Core™ i5 i5-2520M:1366 x 768 pixels
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:1280 x 800 pixels
Native aspect ratio
- ThinkPad L520 Intel® Core™ i5 i5-2520M:16:9
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:16:10
Processor family
- ThinkPad L520 Intel® Core™ i5 i5-2520M:Intel® Core™ i5
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:Intel® Core™2 Duo
Processor model
- ThinkPad L520 Intel® Core™ i5 i5-2520M:i5-2520M
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:T7300
Processor threads
- ThinkPad L520 Intel® Core™ i5 i5-2520M:4
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:2
Processor frequency
- ThinkPad L520 Intel® Core™ i5 i5-2520M:2.5 GHz
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:2 GHz
Processor cache
- ThinkPad L520 Intel® Core™ i5 i5-2520M:3 MB
- ThinkPad R61 Intel® Core™2 Duo T7300 Laptop:4 MB

Side by side

Differences highlightedShow differences only

Comparison of L520, R61
190 specifications	A Lenovo ThinkPad L520 Intel® Core™ i5 i5-2520M Model L520 View product	B Lenovo ThinkPad R61 Intel® Core™2 Duo T7300 Laptop Model R61 View product
Designidentical
Product typeKnown for one	Unknown — not stated by the source	Laptop
Product colour	Black	Black
Form factorKnown for one	Unknown — not stated by the source	Clamshell
Housing materialKnown for one	Unknown — not stated by the source	Plastic
Display3 differ
Display diagonalDiffers	39.6 cm (15.6")	35.8 cm (14.1")
Display resolutionDiffers	1366 x 768 pixels	1280 x 800 pixels
TouchscreenKnown for one	Unknown — not stated by the source	No
HD typeKnown for one	Unknown — not stated by the source	Not supported
LED backlightKnown for one	Unknown — not stated by the source	Yes
Native aspect ratioDiffers	16:9	16:10
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Display brightnessKnown for one	Unknown — not stated by the source	185 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	300:1
Processor12 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™2 Duo
Processor modelDiffers	i5-2520M	T7300
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.5 GHz	2 GHz
Processor cacheDiffers	3 MB	4 MB
Processor cache typeDiffers	Smart Cache	L2
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Processor socketDiffers	Socket 988	PBGA479, PPGA478
Processor lithographyDiffers	32 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-2500 Mobile Series	Intel Core 2 Duo T7000 Series
Processor codenameDiffers	Sandy Bridge	Merom
Bus typeDiffers	DMI	FSB
FSB Parity	No	No
Thermal Design Power (TDP)	35 W	35 W
Tjunction	100 °C	100 °C
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	291 M
Processing Die sizeKnown for one	Unknown — not stated by the source	143 mm²
CPU multiplier (bus/core ratio)Differs	25	10
ECC supported by processor	No	No
Processor generationKnown for one	2nd gen Intel® Core™ i5	Unknown — not stated by the source
Processor boost frequencyKnown for one	3.2 GHz	Unknown — not stated by the source
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
L3 cacheKnown for one	3 MB	Unknown — not stated by the source
L2 cacheKnown for one	3 MB	Unknown — not stated by the source
SteppingKnown for one	J1	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8, 1x8+2x4	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Memory4 differ
Internal memoryDiffers	3 GB	1 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory clock speedDiffers	1333 MHz	667 MHz
Memory form factorKnown for one	Unknown — not stated by the source	SO-DIMM
Memory layout (slots x size)Differs	1 x 1 + 1 x 2 GB	1 x 1 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memoryKnown for one	8 GB	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	320 GB	120 GB
Storage mediaKnown for one	Unknown — not stated by the source	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	320 GB	120 GB
HDD interface	SATA	SATA
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Optical drive typeDiffers	DVD-RW	DVD±RW
Card reader integratedDiffers	No	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, MS PRO, SD, xD
Graphics2 differ
On-board graphics card	Yes	Yes
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 familyDiffers	Intel® HD Graphics	Intel® GMA
On-board graphics card modelDiffers	Intel® HD Graphics 3000	Intel® GMA X3100
On-board graphics card base frequencyKnown for one	650 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1300 MHz	Unknown — not stated by the source
On-board graphics card IDKnown for one	0x116	Unknown — not stated by the source
Maximum resolutionKnown for one	1366 x 768 pixels	Unknown — not stated by the source
Audio2 differ
Audio systemDiffers	HD	High Definition Audio
Number of built-in speakers	2	2
Speaker powerDiffers	1.5 W	1 W
Built-in microphoneKnown for one	Unknown — not stated by the source	Yes
Cameraidentical
Front cameraKnown for one	Unknown — not stated by the source	No
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11a, 802.11b, 802.11g
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Bluetooth	No	No
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Integrated 4G WiMAXKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
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 quantity	0	0
DisplayPorts quantityDiffers	1	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsDiffers	0	1
Thunderbolt ports quantity	0	0
Thunderbolt 2 ports quantityKnown for one	Unknown — not stated by the source	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotKnown for one	Unknown — not stated by the source	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slotKnown for one	Unknown — not stated by the source	No
TV-out	No	No
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® GM965
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Touchpad + Scroll zone
Keyboard backlitKnown for one	Unknown — not stated by the source	Yes
Numeric keypadKnown for one	Unknown — not stated by the source	No
Spill-resistant keyboardKnown for one	Unknown — not stated by the source	Yes
Full-size keyboard	No	No
Keyboard number of keysKnown for one	Unknown — not stated by the source	89
Windows keysKnown for one	Unknown — not stated by the source	Yes
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTY
Keyboard languageKnown for one	Unknown — not stated by the source	English
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Windows Vista Business
Operating system architectureKnown for one	Unknown — not stated by the source	32-bit
Trial softwareKnown for one	Unknown — not stated by the source	Norton Internet Security, Microsoft Office 2007 (60-Day)
Bundled softwareKnown for one	Unknown — not stated by the source	VitalSource Library College Edition Adobe Instructor Resource Center Adobe Photoshop Elements 5 Adobe Premier Elements 3 Rescue and Recovery Access Connections Client Security Solution ThinkVantage Productivity Center ThinkVantage System Update System Migration Assistant Diskeeper® Home PC-Doctor Th
Processor special features20 differ
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	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 Rapid Storage Technology	No	No
Intel Smart Connect TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyDiffers	Yes	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)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
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	Yes	No
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	Yes	No
Intel® Insider™	No	No
Intel® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Differs	Yes	No
Intel® Quick Sync Video TechnologyDiffers	Yes	No
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	52229	29760
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	35 x 35 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Conflict-Free processor	No	No
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Intel Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Processor codeKnown for one	SR048	Unknown — not stated by the source
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Battery life (max)Known for one	Unknown — not stated by the source	5.7 h
Poweridentical
AC adapter power	65 W	65 W
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	Yes	No
Fingerprint reader	Yes	Yes
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Trusted Platform Module (TPM)Known for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions5 differ
WeightDiffers	2.6 kg	2.5 kg
WidthDiffers	379.9 mm	335 mm
DepthDiffers	246.8 mm	261 mm
Height (front)Differs	3.2 cm	3.06 cm
Height (rear)Differs	3.6 cm	3.49 cm
HeightKnown for one	32 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
3DKnown for one	Unknown — not stated by the source	No
Infrared data portKnown for one	No	Unknown — not stated by the source
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Power requirementsKnown for one	100-240V	Unknown — not stated by the source
Modem typeKnown for one	No	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	AC	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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