Lenovo ThinkPad T420s
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    HP EliteBook 8740w
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    General Class Standard Laptop Desktop replacement
    Operating Sistem Windows 7 Windows XP
    Body Dimensions 13.40 in x 1.02 in x 9.05 in15.60 in x 1.40 in x 11.20 in
    Weight 1.79 kg (3.94 lb)3.54 kg (7.8 lb)
    Color BlackBlack
    Display Size 14 inches17 inches
    Resolution 1600x9001920x1200
    LED No
    3D NoNo
    Features Surface finish:Glossy
    Processor Name Intel Core i3 2310MIntel Core i7 720QM
    Frequence 2.1 GHz1.6 GHz
    Cores 2 per processor4 per processor
    Cache L3 Cache:3.0 MBL3 Cache:6.0 MB
    Arhitecture 64-bit64-bit
    Technology 32nm45nm
    Chipset Intel QM67Mobile Intel QM57 Express
    TDP 35W45W
    Graphics Type Integrated cardDedicated card
    Name Intel HD GraphicsNVIDIA Quadro FX 3800M
    Memory 1024 MB
    Memory Capacity 4 GB
    Max Capacity 8 GB
    Type DDR3-1333 MHzDDR3-1333 MHz
    Total Slots 22
    Storage Capacity 160 GB320 GB
    Size 2.5"
    RPM 7200RPM7200RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA
    Optical Type Reading support: CD DVDReading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11b, 802.11g, 802.11n)Yes (802.11a, 802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1
    Interfaces USB 24 Version:2.0
    VGA YesYes
    LAN RJ-45RJ-45
    ESata Yes (1)
    FireWire Yes
    Expansion Slot ExpressCard (34), PCI Express MiniExpressCard (54)
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader YesYes
    Other DisplayPortDisplayPort
    Devices Keyboard Dedicated media playback controls
    Pointing Touchpad (2 Buttons), Pointing stick (2 Buttons)Touchpad (3 Buttons), Pointing stick (3 Buttons)
    Camera YesYes, 2 megapixels
    Microphone YesYes
    Security Features Kensington lock, Fingerprint reader, Smart Card reader
    Baterry Cells 6 cells8 cells
    Type Li-Ion
    Capacity 73 WHr
    Autonomy 10 Hours
    Other Adapter power consumption:Typical: 65 WAdapter power consumption:Max: 200 W

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