Lenovo Essential B470 431523U
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    Acer Aspire 7530
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    General Class Standard Laptop Desktop replacement
    Operating Sistem Windows 7 Windows Vista
    Body Dimensions 13.39 in x 1.32 in x 9.24 in15.80 in x 11.70 in x 1.60 in
    Weight 2.20 kg (4.85 lb)3.80 kg (8.38 lb)
    Color GrayBlack
    Display Size 14 inches17 inches
    Resolution 1366x7681440x900
    LED Yes
    3D NoNo
    Features Surface finish:Glossy
    Processor Name Intel Core i5 2410MAMD Athlon X2 QL-60
    Frequence 2.3 GHz1.9 GHz
    Cores 2 per processor2 per processor
    Cache L3 Cache:3.0 MBL2 Cache:1.0 MB
    Arhitecture 64-bit
    Technology 32nm45nm
    Chipset NVIDIA nForce MCP77MH
    TDP 35W35W
    Graphics Type Dedicated card, Integrated cardIntegrated card
    Name NVIDIA GeForce GT 410MNVIDIA GeForce 9400M
    Memory 1024 MB250 MB up to 1663 MB
    Name Intel HD Graphics 3000
    Features Processor clock:650 MHz
    Memory Capacity 4 GB3 GB
    Max Capacity 4 GB
    Type DDR3-1333 MHzDDR2-667 MHz
    Slots 21
    Total Slots 22
    Storage Capacity 250 GB250 GB
    RPM 5400RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATA
    Optical Type Reading support: CD DVD
    Writing support: CD DVD    		Reading support: CD DVD BD
    Writing support: CD DVD
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11b, 802.11g, 802.11n), Intel WiDiYes (802.11b, 802.11g)
    Bluetooth Yes Version:2.1 EDR:YesYes Version:2.0 EDR:Yes
    Modem NoYes
    Infrared NoYes
    Wimax Yes
    UWB No
    Broadband Wireless GSM (3G)
    Interfaces USB 4 Version:2.04 Version:2.0
    HDMI YesYes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata Yes (1)No
    Thunderbolt No
    FireWire No
    Expansion Slot ExpressCard (54)
    Microphone Microphone in 3.5mm
    Headphone Audio out 3.5mm
    Card Reader Memory Stick, Memory Stick PRO, SD, SDHC, xD-Picture Card, MMCMemory Stick, Memory Stick PRO, SD, xD-Picture Card, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port NoYes
    Other 1/8” stereo headphone output & microphone input combo jack
    Devices Keyboard Dedicated media playback controls
    Pointing Touchpad (2 Buttons)Touchpad
    Speakers Speakers total power:3W
    Camera Yes, 0.3 megapixelsYes
    Microphone YesYes
    Security Features Kensington lock, Fingerprint reader Kensington lock
    Baterry Cells 6 cells6 cells
    Type Li-IonLi-Ion
    Autonomy 3 Hours2.5 Hours

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