Product comparison · 2 laptops

Lenovo L520 + Kit vs Lenovo T520 Kit

139specifications compared
27differ
112identical
14known for one product only

Key differences

Processor family
- L520 + Kit:Intel® Core™ i5
- T520 Kit:Intel® Core™ i7
Processor generation
- L520 + Kit:2nd gen Intel® Core™ i5
- T520 Kit:2nd gen Intel® Core™ i7
Processor model
- L520 + Kit:i5-2410M
- T520 Kit:i7-2620M
Processor boost frequency
- L520 + Kit:2.9 GHz
- T520 Kit:3.4 GHz
Processor frequency
- L520 + Kit:2.3 GHz
- T520 Kit:2.7 GHz
Processor cache
- L520 + Kit:3 MB
- T520 Kit:4 MB
PCI Express configurations
- L520 + Kit:1x8, 1x16, 2x4, 2x8
- T520 Kit:1x16, 2x8, 1x8+2x4
CPU multiplier (bus/core ratio)
- L520 + Kit:23
- T520 Kit:27

Side by side

Differences highlightedShow differences only

Comparison of L520 + Kit, T520 Kit
153 specifications	A Lenovo L520 + Kit View product	B Lenovo T520 Kit View product
Displayidentical
Display brightnessKnown for one	Unknown — not stated by the source	220 cd/m²
Processor9 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i7
Processor modelDiffers	i5-2410M	i7-2620M
Processor boost frequencyDiffers	2.9 GHz	3.4 GHz
Processor frequencyDiffers	2.3 GHz	2.7 GHz
Processor cacheDiffers	3 MB	4 MB
Processor seriesDiffers	Intel Core i5-2400 Mobile Series	Intel Core i7-2600 Mobile Series
PCI Express configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x16, 2x8, 1x8+2x4
CPU multiplier (bus/core ratio)Differs	23	27
Storage2 differ
Total storage capacityDiffers	320 GB	500 GB
HDD capacityDiffers	320 GB	500 GB
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, SDXC
Graphics2 differ
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	NVIDIA® NVS™ 4200M
Graphics card familyDiffers	Intel	Intel, NVIDIA
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1300 MHz
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	3	2
SmartCard slotKnown for one	Unknown — not stated by the source	No
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® HM65 Express	Intel QM65
Processor special features6 differ
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Insider™Differs	No	Yes
Processor ARK IDDiffers	52224	52231
Processor codeKnown for one	Unknown — not stated by the source	SR041
Processor package sizeDiffers	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Battery1 differ
Number of battery cellsDiffers	6	9
Battery life (max)Known for one	Unknown — not stated by the source	12.8 h
Securityidentical
Password protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
Weight & dimensions5 differ
WeightDiffers	2.6 kg	2.52 kg
WidthDiffers	379.9 mm	373 mm
DepthDiffers	246.8 mm	245 mm
Height (front)Differs	3.2 cm	3.18 cm
Height (rear)Differs	3.6 cm	3.56 cm
Other featuresidentical
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

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