Review � Lenovo ThinkPad W520, ThinkPad T420s and ThinkPad Edge E420s go live online

Lenovo ThinkPad E420sThis week Lenovo has done a great job releasing new Sandy Bridge laptops. It has been a while since first 2nd generation Core i-series notebooks went on sale, but Lenovo is catching up well. Some of the top range models are still to come, but in the meanwhile there are three freshly released ThinkPads to look at. Prices start at $700 for a budget 14-incher and slide way past $1,500 on customization sledges for a workstation. Specifications of the newcomers including base prices and customization options are after the bump.

Lenovo ThinkPad W520 specifications:

Processor: Intel Core i7-2620M @ 2.7 GHz, Intel Core i7-2720QM @ 2.2 GHz, Intel Core i7-2820QM @ 2.3 GHz, Intel Core i7-2920XM @ 2.5 GHz

Graphics: NVIDIA Quadro 1000M 2 GB w/ Optimus

Memory: 4 GB DDR3 @ 1,333 MHz, 6 GB DDR3 @ 1,333 MHz, 8 GB DDR3 @ 1,333 MHz, 16 GB DDR3 @ 1,333 MHz

Storage: 320 GB HDD @ 7,200 rpm, 500 GB HDD @ 7,200 rpm, 128 GB SSD, 160 GB SSD

Display: 15" LED 1,366 � 786, 15" LED 1,600 � 900, 15" LED 1,920 � 1,080

Camera: 720p HD

Wireless: Bluetooth 3.0, 3G, b/g/n Wi-Fi,

Battery: 6-cell 2.6 Ah Li-Ion, 9-cell 2.8 Ah Li-Ion

Base price: $1,500


Lenovo ThinkPad T420s specifications:

Processor: Intel Core i5-2520M @ 2.5 GHz, Intel Core i5-2540M @ 2.6 GHz

Graphics: Intel HD Graphics 3000

Memory: 2 GB DDR3 @ 1,333 MHz, 4 GB DDR3 @ 1,333 MHz, 6 GB DDR3 @ 1,333 MHz, 8 GB DDR3 @ 1,333 MHz

Storage: 250 GB HDD @ 5,400 rpm, 320 GB HDD @ 5,400 rpm, 320 GB HDD @ 7,200 rpm, 128 GB SSD, 160 GB SSD

Display: 14" LED 1,600 � 900

Camera: 720p HD

Wireless: Bluetooth 3.0, 3G, b/g/n Wi-Fi, WiMAX

Battery: 6-cell Li-Ion

Base price: $1,200


Lenovo ThinkPad Edge E420s specifications:

Processor: Intel Core i3-2310M @ 2.1 GHz, Intel Core i5-2410M @ 2.3 GHz

Graphics: Intel HD Graphics 3000

Memory: 4 GB DDR3 @ 1,333 MHz, 6 GB DDR3 @ 1,333 MHz, 8 GB DDR3 @ 1,333 MHz

Storage: 250 GB HDD @ 5,400 rpm, 320 GB HDD @ 7,200 rpm, 128 GB SSD

Display: 14" LED 1,366 � 768

Wireless: Bluetooth 3.0, 3G, b/g/n Wi-Fi, WiMAX

Battery: Li-Polymer 48.8 Wh

Base price: $700