These where found at the developer zone @ nvidia.com. It's an OpenGL 4.3 beta driver (DriverVer = 08/02/2012, 8.17.13.0553).
You can discuss the drivers right here.
You will need any one of the following Fermi or Kepler based GPUs to get access to the OpenGL 4.3 and GLSL 4.30 functionality:
- Quadro series: 6000, 600, 5000, 410, 4000, 400, 2000D, 2000
- GeForce 600 series: GTX 690, GTX 680, GTX 670, GT 645, GT 640, GT 630, GT 620, GT 610, 605
- GeForce 500 series: GTX 590, GTX 580, GTX 570, GTX 560 Ti, GTX 560 SE, GTX 560, GTX 555, GTX 550 Ti, GT 545, GT 530, GT 520, 510
- GeForce 400 series: GTX 480, GTX 470, GTX 465, GTX 460 v2, GTX 460 SE v2, GTX 460 SE, GTX 460, GTS 450, GT 440, GT 430, GT 420, 405

Have you read our Gigabyte GeForce GTX 680 SOC review already ?