As of OPENCL performance. You all seemingly seem to think it's going to make a monumental difference in everything, and also auto-assume that OPENCL performance between 9400 - 9600 is going to be drastic. Let's wait until REAL WORLD BENCHMARKS show us what the benefit is rather than just assume a radical difference. I predict were going to get a sh*t load of people whining on this forum that OPENCL performance isn't as big as they thought it would be with graphics card A, as opposed to graphics card B.
Exactly. Apple updated all of its machines recently, and the 9400M is now the base card in every one of their product lines except the Mac Pro. Only two machines are available without it: the 17" MBP, and the Mac Pro.
That's a very clear statement on Apple's part that they have every confidence that the 9400M can handle the needs of OpenCL. I highly doubt the GPU is going to become a major part of any computer's processing prowess, at least not in the near future. The "9600M will be better with OpenCL" claim is not only completely unsupported right now, but probably wrong. I wish people would stop falling back on it, especially when they advise "buy the better card, OpenCL might use it". $300 for a maybe is an awfully steep guess...