MSI N770 /OC Lightning 4gb

Solution


No, "Lightning" version has only 2GB VRAM only "Gaming" has 2/4GB versions.
Go for 4GB "Gaming" card :)


4GB VRAM has nothing to do with slower GPU, some GT630 graphics cards also have 4GB VRAM.
If you play at 1080p than you don't need more than 2GB (most games utilizes 1.8GB VRAM on 1080p) and for 1440p 3GB is perfectly fine also GTX-780 is a GTX-Titan with less CUDA cores and VRAM.
 


Most rendering programs use CPU for rendering, my friend has core i7 3770 CPU 16GB RAM and GTX-550ti for 3D modeling (3D Max, AutoCad) and he's happy with 1GB video card for rendering.
 
It depends on the kind. I render and code HSLS shaders. I also texture, and then rendering textured models in full HD can be pretty stressful. My CPU can handle basic mesh-type easily.