12fps is what my 5mp is doing on my XVR.. So if you needed 25 or in my case 30 fps you would need to use the camera in 2mp.. I know that isn't what you want to know but the datasheet is either not complete or you missed it.. IN my 5108-I3 DVR 8mp I get 7fps, 5mp I get 12fps, 4mp I get 15fps and 2mp I get 30fps.. However my cameras are using NTSC and so your numbers for fps may vary..