Will an ssd improve game performance?

A Solid state drive will improve loading times above anything else. It is "flash" memory, and accesses information much faster as there are no moving parts such as the drive head that reads a disk.

As for other performance, you should not see a significant impact (graphic processing, for example.)

It won't really help improve performance in those cases, maybe ~1%, but nothing more. It will however decrease load times, and if you are recording increase performance while you do that.

You will not notice much of a difference.

i should have clarified what i meant by performance. im not talking frame rates. in games like skyrim where it has to load textures far away will it be less noticable? the worst by far was fallout new vegas. the game stopped for half a sec to load the textures

Might see a very small improvement.

Correct me if I'm wrong anybody. But your gaming textures are more reliant on your GPU and CPU. Your storage media shouldn't affect texture load time much, if at all. Unless of course your Hard drive/s are old or worn out. I'd personally look at processing rather than storage.

Well I suppose the time to transfer textures from a SSD to the graphic card's RAM will decrease somewhat, but I would think not enough for you to notice any difference.

It very depend on the game, some will benefit more some not so...

They had one in common that is loading time. Other than that, the improvement somewhat small (can be ignored)...

If u had spare money, u can try SSD. SSD will make the whole experience (not just gaming) seems different (in good way)...