670M vs 650M laptop graphics

Well, 670 is slightly better than 650 (maybe about +/- 20%). Is it worth for another $250? If you ask me, I will grab the 650M.  

I agree with wa1, for 250 bucks I would not go for it, you'd be paying a lot. What do you plan on doing with it, gaming? If so what games? Until recently most games didn't need much more than 1GB of memory, but now with high resolution games they use more. However as you are playing on a laptop (if you plan on gaming) then you will be fine with 1GB as you will not likely play @1080p maxed out.

Hope this helps!

It is not that worth it

Vanwinklec, the gain in performance from 650m to 670m isn't worth $250, but that's just from my perspective. Maybe the link below can offer some help for you to compare.

http://www.notebookcheck.net/NVIDIA-GeForce-GT-650M.718...

If my assumption is correct the 670m should be 2-3 times faster.Remember 650m is based on kepler.The GTX 680 3 times more cuda cores and 40% higher core clock than GTX580 to be 40% faster.

2-3 times faster? epic math fail? that would be 200-300% faster...

The 670M is ~20% faster

May not seem like much, but it could make the difference between some games stuttering or running smoothly.

Checking game specific tests on Notebookcheck.net would make sense to help decide.