This is for anyone who's thinking about taking the plunge for their own geriatric machine.
I'm running this game at a steady
35-40 FPS (yeah yeah) on an ancient 4.5 years old low end
Core 2 T9550 @ 2.8 GHz, ATI Mobility Radeon 4670 1GB and 8GB DDR3 RAM laptop at
900p (Xbone quality baby!) with everything enabled. (except for AA, Ambient Occlusion, PhysX and DX11 features of course, the card is only DX10.1)
The first boss fight
did force me to disable Dynamic Shadows, Motion Blur, and DOF to get acceptable performance (dipped to below 30 FPS in that fight with all the particle effects) but other than that is been smooth sailing so far, relatively.
This is acceptable to me for the specs that I have. The framerate is actually better in this game as compared to Arkham City in general, especially when traversing the world (less stuttery); Arkham Asylum still holds the crown for best performance. Must be due to the lack of that Securom/GFWL bullshit that was present in its predecessor. Startup time is pretty damn quick too.