over 4 years ago - UbiShoreman - Direct link
Here is some more info about the minimum specs for Siege.[support.ubisoft.com]

I don't recommend trying siege on your current machine. After some research, the minimum required GPU (the Radeon 5770) has close to 400% more performance than your current GPU (You can check the comparison here, with your GPU being at 100% performance[www.techpowerup.com])