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| Brand | Compaq |
| Model | 621 |
| Thickness | 27.5 Millimeter thickness |
| Dimensions(WxDxH) | 372 x 250 x 27.5 mm |
| Weight | 2.4 Kg weight |
| Colour(s) | Black |
| Operating System | DOS |
| Display Size | 15.6 Inches (39.62 cm) |
| Display Resolution | 1366 x 768 Pixels |
| Pixel Density | 100 ppi |
| Display Type | LED |
| Display Features | HD LED-Backlit Display |
| Touchscreen | No |
| Processor | Intel Core 2 Duo T6570 |
| Clock-speed | 2.1 Ghz |
| Chipset | Intel PM45 Express |
| Graphic Processor | ATI Radeon HD 530v |
| Graphics Memory | 512 MB |
| Capacity | 2 GB |
| RAM type | DDR3 |
| RAM speed | 1066 Mhz |
| Memory Slots | 2 DIMM |
| HDD Capacity | 320 GB |
| HDD Speed(RPM) | 7200 RPM |
| HDD type | SATA |
| Battery Cell | 6 Cell |
| Battery type | Li-Ion |
| Wireless LAN | 802.11 b/g/n |
| Wi-Fi Version | 4 |
| Bluetooth | Yes |
| Other Networking Options | 1 x AC power, 1 x external VGA monitor, 1 x Express Card/34 |
| USB 2.0 slots | 3 |
| SD Card Reader | Yes |
| Ethernet Ports | 1 |
| Headphone Jack | Yes |
| Microphone Jack | Yes |
| VGA Port | Yes |
| Webcam | Yes |
| Webcam Resolution | 2 MP |
| Secondary cam(Rear-facing) | No |
| Audio Solution | HD Audio Solution |
| Speakers | Stereo speakers |
| In-built Microphone | Yes |
| Optical Drive | DVD+/-RW SuperMulti DL LightScribe Drive |
| Drive Type | DVD Writer |
| Pointing Device | Touchpad |
| Keyboard | Standard Keyboard |
| Warranty | 1 Year |
| Sales Package | Laptop,Battery,AC Adapter,User Guides and Manuals |
Lesser thickness:
27 Millimeter vs 27.5 Millimeter
Lesser weight:
2.2 Kg vs 2.4 Kg
Slow hard disc access:
5400 RPM vs 7200 RPM
Lesser thickness:
25.2 Millimeter vs 27.5 Millimeter
Faster bus speed:
1600 Mhz vs 1066 Mhz
Faster Processor:
1567 vs 1256
Faster Processor:
1366 vs 1256
Lower display resolution:
1280 x 800 Pixels vs 1366 x 768 Pixels
Lesser hard-disk capacity:
250 GB vs 320 GB
Lesser weight:
1.6 Kg vs 2.4 Kg
More thickness:
32 Millimeter vs 27.5 Millimeter
Slow hard disc access:
5400 RPM vs 7200 RPM
Faster Processor:
1336 vs 1256
Lesser weight:
2.2 Kg vs 2.4 Kg
More thickness:
34.8 Millimeter vs 27.5 Millimeter
