How much GPU RAM would be enough?

[AndresAhumada]

reading every post I see with great interest to see how the market behaves with respect to the use of ram on the GPUs. Currently the powerful Xeon Phi is a great alternative ... I just hope Chaosgroup have one in your hands to make them run RT. The computing power it has under x86 writing is a big plus. Scalability to all test.

Any news about Xeon Phi?

regards