Again this is irrelevant to anything I was talking about. It's an entirely different topic.
The topic is, and has always been, about how to improve the Workflow.
I guess I could use it to strengthen and support what I'm saying but it's only a besides the point addition.
Yes, I do believe that you are willing to rearrange the facts to be exactly backwards so as to try to bolster your claims.
Unfortunately for you, the facts aren't reversed: a hardware-based 100% improvement in rendering speed will generally result in more than a 100% improvement because of the nonlinear effects of the man-in-the-loop for their responsiveness time contribution to the overall workflow and its net productivity.
The macro process is that the user period interval for how frequently they check for a hardware update has a nonlinear correlation to the hardware response times and the faster the hardware response time is, the shorter the human's period interval is ("for checking on it").
BTW, we see this everywhere in everyday life: we check the toaster to see if our toast is done more frequently than we check the oven for the pot roast.
IIRC, human perception is able to resolve down to around 8%-10% differences. The implications of this are that even the difference between a mere 4-core and a 6-core CPU can be noticeable by its operator.
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FWIW, what really underlies the entire "# CPU Cores" debate is an anticipated technology shift which has the potential to make the CPU core count effectively moot. We have faith that this transition point is probably coming through the leveraging of GPUs through OpenGL, GCD, etc ... and the unknown is the timeline: will the watershed event occur finally in 2014, or is it still a few more years off?
Setting aside the classical chicken-egg paradoxes (and that GCD's been in gestation since 2009), the basic implication for a business looking to buy hardware today is that it depends on if their workflow can employ it and what the state of development is within all the components of the same to determine when is the right time to invest in the 'paradigm shift'.
Perhaps there is a lot going on behind the scenes at the software developers such that by the time the new Mac Pro ships the necessary software tools will be in place ... but by the same token, the indicators don't appear to be particularly overt, which makes a contemporary investment commitment to this future path premature and a business risk.
-hh