Разве такой результат glxgears нормальный для GeForce GT 440 ?
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
301 frames in 5.0 seconds = 60.002 FPS
300 frames in 5.0 seconds = 59.940 FPS
300 frames in 5.0 seconds = 59.951 FPS
