Portal 2 Ending Part 1 https://www.youtube.com/watch?v=2JvDLE4mptA&list=UUy3spRuIr_2l6JO0SQOCOvA
Portal 2 Ending Part 3 https://www.youtube.com/watch?v=j7BqyM2b_Sg&list=UUy3spRuIr_2l6JO0SQOCOvA

Spec:

Intel Pentium G3220 3,0 Ghz
6 GB DDR3 1333 Mhz
320GB HDD
Intel HD 4200
Windows 7 Ultimate 64bit

Settings:
1280x1024
All High
AA: off
Vfvy: Off

The game is owned by VALVE Softvare !