NVIDIA Quadro K620M vs NVIDIA Quadro M1000M vs NVIDIA Quadro M5500
Mainboard For Lenovo Thinkpad W550s T550 Laptop Motherboard With I7-5600u Cpu K620m 2gb Fru 00ur129 00jt421 100% Full Tested Ok - Laptop Motherboard - AliExpress
Lenovo W550S ThinkPad Intel Core i7-5500U 15.6" Full HD Anti-Glare (1920x1080) 8GB DDR3L (1x8GB) 256GB SSD NVIDIA Quadro K620M 2GB Windows 8.1 Pro Notebook - Wootware
Lenovo ThinkPad W550s 20E2000YUS 15.6" LED Notebook - Intel Core i7 i7-5500U 2.40 GHz - 8 GB RAM - 500 GB HDD - NVIDIA Quadro K620M - Windows 7 Professional 64-bit - 1920 x 1080 Display - Bluetooth