In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 285M are marginally better than the Nvidia GeForce GT 445M v2.

The GeForce GTX 285M has a 30 MHz higher core clock speed and 40 more Texture Mapping Units than the GT 445M. This results in the GeForce GTX 285M providing 24.7 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GTX 285M has a 30 MHz higher core clock speed than the GT 445M and the same number of Render Output Units. This results in the GeForce GTX 285M providing 0.5 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GT 445M was released less than a year after the GeForce GTX 285M, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GT 445M v2 and the GeForce GTX 285M have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GeForce GTX 285M has 24 GB/sec greater memory bandwidth than the GT 445M, which means that the memory performance of the GeForce GTX 285M is slightly better than the GT 445M.

The GeForce GT 445M v2 has 144 Shader Processing Units and the GeForce GTX 285M has 128. However, the actual shader performance of the GT 445M is 164 and the actual shader performance of the GeForce GTX 285M is 192. The GeForce GTX 285M having 28 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GTX 285M delivers a noticeably smoother and more efficient experience when processing graphical data than the GT 445M.

The GT 445M transistor size technology is 25 nm (nanometers) smaller than the GeForce GTX 285M. This means that the GT 445M is expected to run slightly cooler and achieve higher clock frequencies than the GeForce GTX 285M. While they exhibit similar graphical performance, the GT 445M should consume less power than the GeForce GTX 285M.

The GeForce GT 445M v2 requires 35 Watts to run and the GeForce GTX 285M requires 75 Watts. The GeForce GTX 285M requires 40 Watts more than the GT 445M to run. The difference is significant enough that the GeForce GTX 285M may have a slight adverse affect on your yearly electricity bills in comparison to the GT 445M.