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Sony VAIO Z Series VGN-Z820G/B

alaTest has collected and analyzed 4 reviews of Sony VAIO Z Series VGN-Z820G/B. The average rating for this product is 3.5/5, compared to an average rating of 4.1/5 for other Laptops for all reviews. Comments about the energy efficiency and performance are generally positive. The durability and design also get good reviews, but many are negative about the usability.

portability, design, durability, performance, energy


On average, users rate this product 67/100 and experts rate this product 80/100.

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Review analysis

(Based on 4 reviews)

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Consumer review by: ( review summary for Sony VAIO Z Series VGN-Z820G/B


alaTest has collected and analyzed 3 user reviews of Sony VAIO Z Series VGN-Z820G/B from The average user rating for this product is 3.3/5, compared to an average user rating of 4.0/5 for other Laptops on People are impressed by the performance and energy efficiency. The portability and design are also appreciated, but many are critical about the usability.

design, portability, energy, performance


67% of the reviews on give this product a positive rating.

This summary is based on the product: Sony VAIO VGN-Z820G/B 13.1-Inch Black Laptop (Windows 7 Professional)

Nov, 2015

Expert review by: (

Sony VAIO Z Series VGN-Z820G/B


If you're in the market for a true mobile workstation, the Sony VAIO Z Series notebook PC VGN-Z820G/B makes an excellent choice. The true widescreen display can help improve your productivity, as can the abundance of connectivity options. Couple this...

2.53GHz Intel Core 2 Duo processor4GB RAM320GB 7200 rpm hard driveTrue widescreen 1600 x 900 displayRugged construction and high build quality

The Sony VAIO Z Series notebook PC VGN-Z820G/B is a 13.1

Feb, 2010

Product Specifications

Among the VAIO Z series' best in class capabilities is a revolutionary 13.1" LCD display. Scratch-proofed and anti-glare, it delivers 100% true-to-life color fidelity and extra wide 1600 x 900 resolution for deeper contrast and truly natural realization. With its carbon fiber casing the VAIO Z series notebook could hardly be easier to carry. The VAIO Z series' button, AC adapter terminal and battery are all cleanly aligned along its elegant cylindrical spine. This distinctive construction allows the jointed thickness of the screen and main body to be kept to an absolute minimum, accounting for its pristine portability. The isolation keyboard is carved seamlessly from a single sheet of aluminum, so the palm rest and keyboard form a continuous surface styled into a smooth curve at the front of the notebook. As well as looking stylish, this unique feature enhances both durability and comfort.

Audio Input


Audio Output

Type:Sound card


Run Time (Up To):5.5hour(s)
Technology:Lithium ion

Cache Memory

Installed Size:3MB

Dimensions & Weight


Display (Projector)

Diagonal Size:13.1in
Diagonal Size (metric):33.3cm
Max Resolution:1600 x 900
Technology:TFT active matrix
Widescreen Display: Yes

Environmental Standards

EPEAT Compliant: Yes


Packaged Quantity:1
Product Line:Sony VAIO Z Series

Input Device

Type:Touchpad / Keyboard


Data Bus Speed:1066MHz




Cellular Network Supported: Yes
Protocols & Specifications:ITU V.92 / ITU V.90
Type:Fax / modem / cellular modem


Data Link Protocol:IEEE 802.11g / IEEE 802.11a / IEEE 802.11b / Gigabit Ethernet / Fast Ethernet / IEEE 802.11n / Bluetooth 2.1 EDR
Type:Network adapter
Wireless LAN Supported: Yes
Wireless Protocol:802.11 a/b/g/n / Bluetooth 2.1 EDR

Notebook Camera

Camera Type:Integrated

Optical Storage


OS Provided

Type:Microsoft Windows 7 Professional 64-bit Edition / XP Professional downgrade


64-bit Computing: Yes
Clock Speed:2.53GHz
Multi-Core Technology:Dual-Core
Processor Number:P8700
Type:Core 2 Duo


Installed Size:4GB
Max Supported Size:8GB
Technology:DDR3 SDRAM

Service & Support

Type:1 year warranty

Storage Controller

Type:Serial ATA

Storage Floppy Drive

Type: None

Storage Hard Drive


Storage Removable

Type: None


Hard Drive(-s) Total Capacity:320GB
Notebook Type:Notebook
Platform Technology:Intel Centrino 2
Security Devices:Fingerprint reader

Video Memory

Installed Size:256MB

Video Output

Graphics Processor / Vendor:NVIDIA GeForce 9300M GS / Intel GMA 4500MHD