Im copying this over from my Macrumors thread just incase some people on this forum are interested and don't check over there. All I can say is WOW. The GT650m in the Retina Macbook Pro is already clocked higher than a normal GT650 at 900Core/1254Memory. With the stock clocks I was able to achieve a score of 2252 on 3dMark11 which is about average for this card and the 3720qm (2.6ghz) proc. The temps at stock clocks ranged from 99-105C for the CPU and 77C for the GPU. Even though the temps for the CPU seem high, the laptop only gets a bit warm to the touch. Very impressed. I wanted to see how far I can push the GPU and installed MSi afterburner. I thought that I would get about a 10% increase, and oh boy was I surprised. I spent over four hours increasing clocks a little bit at a time to make sure I had no artifacts and that temps stayed stable. By the end of my testing, I reached a software limitation, not a hardware limitation on the core clock. MSI afterburner only lets me increase the core clock by 135 and 1000 on the memory clock. I had no artifacts from increasing the core clock and only received artifacts when going to 1000 on the memory increase. 950 was perfectly fine and no artifacts. Im sure if I figure out how to pass the software limitation of MSI afterburner, the GPU can handle higher than the 135 increase for the core clock. My final stable overclock was 1035/1729, up from the original of 900/1254. One would think temps would go up alot with this type of overclock, but mine only went up by 1C to a max of 78C for the GPU. With this overclock, I was able to achieve a 3dmark11 score of 2860. This is nearly a 27% increase over the previous score and higher than a stock GTX660m. I couldnt believe how far this card can be pushed. http://i1161.photobucket.com/albums/q509/jakubp12/1035core1729mem.jpg If anyone has info on how to increase the core clock further than the MSI max, Id be willing to OC more (I already tried turning on unoffical overclocking) edit: Here are some gaming benchmarks at 2880x1800 (apart from FFXIV which is at 1920x1080) LP2 DX11 2880x1800 ALL HIGH Stock - 16.9 FPS OC - 21.1 FPS FFXIV High (1920x1080) Stock- 1894 OC - 2131 Resident Evil 5 2880x1800 ALL HIGH Stock - 29.8 FPS OC - 32.8 FPS MAFIA 2 2880x1800 ALL HIGH Stock - 9.1 FPS (lol) OC - 10.6 FPS (still lol) Crysis 2 oaMan Benchmark Gamer Settings 2880x1800 Stock - 19.608 FPS OC - 23.256 FPS Gamer Settings 1920x1200 Stock - 46.512 FPS OC - 52.632 FPS Hardcore Settings 1920x1200 Stock - 25.974 FPS OC- 28.986 FPS Crysis Warhead FRAMEBUFFER Benchmarking Tool Gamer Settings 1920x1200 Stock - Framerate [ Min: 17.38 Max: 33.84 Avg: 26.11 ] OC - Framerate [ Min: 17.83 Max: 39.17 Avg: 28.39 ] OC AT 1200/1649 Crysis 2 Hardcore Settings 1920x1200 32.258 FPS Gamer Settings 2880x1800 24.691 FPS Crysis Warhead Framerate [ Min: 21.33 Max: 39.69 Avg: 30.70 ] 3dmark11 3248 If you guys have any requests for benchmarks, Ill do my best to run them.