Lenovo thinkpad T540p: i5 4300M (2.60GHz), 4GB RAM, 500GB HD, 15.6in 1366x768 LCD, intel HD, DVD, Intel 802.11agn wireless, Bluetooth, Webcam, mini Display port, Win10 Pro IBM 250G HDD / 4G DDR3

250G HDD / 4G DDR3 RAM / DVDRW / Webcam / WIFI / Bluetooth

8GB DDR3 RAM (Maximum 16GB)

Intel Core i5 2350M 2

6 GHz processor / AMD Radeon HD 6310 Graphics

2 cores) Up to 3

Lenovo thinkpad T540p: i5 4300M (2.60GHz), 4GB RAM, 500GB HD, 15.6in 1366x768 LCD, intel HD, DVD, Intel 802.11agn wireless, Bluetooth, Webcam, mini Display port, Win10 Pro IBM 250G HDD / 4G DDR3Intel Core i5 4300U 2. 6 GHz (3 MB Cache) 4 GB DDR3L SDRAM 500 GB 7200 rpm Hard Drive 15. 6 Inch Screen, Intel HD Graphics 4600 2 x USB 3. 0, 2 x USB 2. 0; VGA; Mini DisplayPort; LAN; 4 in 1 card readerHeadphone microphone combo jack TrackPoint, UltraNav, keyboard; multi touch touchpad, spill resistant. Number pad Dolby Advanced Audio v2, High Definition Audio