Im using an AMD 7970 (latest 12.3 drivers) sandy bridge i7 2600k, 8gb ram and all the trimmings and can run dozens of games like skyrim and BF3 on huge maps with over 60fps (vsync) without a dip or a stutter.
When i start the first room and walk around, strafe and spin round etc i get 60fps solid, perfect no issues. but as soon as i grab the torch off the wall near the first gate, the rooms go into darkness then i get a bad fps drop between 60-45 fps but as soon as i put the torch back on the wall and light everything up the fps are smooth again (60fps). If anything, when it plunges into darkness there isn't much rendered apart from dark walls and no fancy lighting effects, so why does my AMD 7970 struggle with the lights out? I guess my new game ends here till a fix is found. I hope the developers read this
