I work with the CS6, mostly Photoshop and Premiere Pro as well for videos - I'd love to see some serious testing on those applications to know for sure if there are any benefits to 4g over 2g since I'm in the market for a new GPU.
It's sad that it's all about gaming when the rest of us still have to work for a living and rarely get serious benchmarks and testing of GPU's for a variety of workloads using CS6.
Wondering if gddr6 will be in the next GPU line up too.
New games may start using loads more memory now that the PS4 and XB1 consoles are out with 8g of ram - wonder if 4g may be of more use in the near future for gaming at that point.
I've been eying the 760 but, really wanted Maxwell, which will likely be the 800 series coming out in 2014:
http://www.tomshardware.com/forum/id-1690353/nvidia-760-wait-860.html