GPU NVIDIA parameters

Hi Guys.

I would like to ask what’s your opinion on two NVIDIA GTX graphic card models.

I want to buy NVIDIA GTX760 (Model not specified- most likely 2GB/OC) but i heard or read that for example GTX 660 Ti is better choice for rendering abilities. GTX760 has Memory Interface Width (256bit) but less CUDA cores than GTX 660 Ti.

What’s more important?

Thx for any reply.