In terms of design, the new E Series is built on the traditional form factor of ThinkPad. It runs Windows 8 and is equipped with Haswell chip with options up to 4-core chip and Nvidia discrete graphics card. Hard drive options up to 1 TB and 16 GB RAM. The E440 and E540 have 14-inch and 15.6-inch screens with anti-glare and touch screen options.
The E440 and E540 were released to replace the ThinkPads E431 and 531. Lenovo's previous ThinkPad E Series machines were praised for their keyboard, sound and battery life. Therefore, Lenovo upgrades this time are expected to do even better.