CUDA option not shown when using an old GPU It looks like this is a common problem, but I can't find any forum post that has a solution to my situation: I have no CUDA tab in system settings in Blender. 

My data:
Windows 10 64bit

Blender v2.77

Geforce GT 330M - driver Nvidia 341.95 (newest avalible driver.)

Is there someone who can help me to find out what can be the issue?
You are out of luck.

The graphics card in question is quite old and has a Cuda compute capability 1.2, which is not supported in blender anymore

To use GPU rendering in Blender you need a card with a 2.0 compute capability.

Form the manual:


  NVIDIA CUDA is supported for GPU rendering with NVIDIA graphics cards. We support graphics cards starting from GTX 4xx (computing capability 2.0).


read:
How to enable GPU rendering on older Nvidia GPUs?

and
Enabling GPU rendering for Cycles?

Even if you where able to somehow hack GPU rendering with that card, it is likely going to be equal or slower than rendering on CPU.