Dell Studio 1557
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    Lenovo Essential G575 43834PU
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    General Class Standard Laptop Standard Laptop
    Operating Sistem Windows 7
    Body Dimensions 14.63 in x 1.23 in x 9.96 in14.83 in x 1.37 in x 9.83 in
    Weight 2.51 kg (5.54 lb)2.60 kg (5.73 lb)
    Color Black
    Display Size 15.6 inches15.6 inches
    Resolution 1366x7681366x768
    LED YesYes
    3D NoNo
    Features Surface finish:Glossy
    Processor Name Intel Core i7 AMD Other Fusion E-450
    Frequence 1.65 GHz
    Cores 2 per processor
    Cache L2 Cache:1.0 MB
    Chipset Intel PM55AMD A50M FCH
    TDP 18W
    Graphics Type Dedicated cardDedicated card, Integrated card
    Name AMD / ATI Radeon / Mobility Radeon HD 4570AMD / ATI Radeon / Mobility Radeon HD 6370M
    Memory 512 MB1024 MB
    Name AMD / ATI Radeon / Mobility Radeon 6320M
    Features Processor clock:600 MHz
    Memory Capacity 1 GB6 GB
    Max Capacity 8 GB8 GB
    Max Capacity Per Slot 4 GB4 GB
    Type DDR3-1066 MHzDDR3-1066 MHz
    Slots 12
    Total Slots 22
    Storage Capacity 750 GB
    RPM 5400RPM
    Type Hard Disc (HDD)
    Interface SATA (SATA type: 3Gbit/s)
    Optical Type Reading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps100 mbps
    Wifi Yes (802.11a, 802.11b, 802.11g, 802.11n)Yes (802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1 EDR:Yes
    Modem No
    Infrared No
    Wimax No
    UWB No
    Interfaces USB 2 Version:2.04 Version:2.0
    HDMI YesYes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata Yes (1)
    FireWire Yes (1)
    Expansion Slot ExpressCard (34), Mini PCIPCI Express Mini
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader SD, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port NoNo
    Devices Keyboard
    Pointing Touchpad (2 Buttons)Touchpad (2 Buttons, Multitouch)
    Speakers Speakers total power:3W
    Camera Yes, 2 megapixelsYes, 0.3 megapixels
    Microphone YesYes
    Security Features Kensington lock
    Baterry Cells 6 cells6 cells
    Type Li-IonLi-Ion
    Other Adapter power consumption:Typical: 65 W Power adapter voltage:100 V - 240 V

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