Flops do change based on GPU design because of the main fact that each new series in done on a different fab. For the same power consumption you get more flops. So VLIW is less efficient than GCN just for the fact they are design for different fab. I know there is some over lap but you understand what I am saying. Now if we find out what fab the gpu is being built on that is pretty much the final piece. This of course is GFLOPS/W. Which is really the measure we can use in wiiu. We take any gpu family and put in the range of power[watts] and it will give us a ball park of the gflops.
I understand what you're saying - that a VLIW design might not be able to achieve the clock or ALU density of the GCN design at the same fab node. Yet, E6760 (which is what I assume you refer to as 'best case') is not GCN - it's VLIW (Turks). Vis-a-vis a Wekiva (assuming it's the closest architecture to U-GPU's that we are familiar with), Turks affects the wavefront efficiency, i.e. the compiler utilisation of the ALUs, but essentially nothing changes with regard to the fab process efficiency per ALU. So yes, a Wekiva manufactured in the same fab node as E6760's can have the same number or ALUs
and reach the same wattage at the same clock.
Its pretty easy to understand. Gflop are a bad measure but that is all we have to compare. If you like we can find some gaming benchmarks and comparing them to the ps3[rsx aka a 7800gs.
But even with this efficiency the number do not change much. And let us be sure to included this when we talk next gen consoles from ms/sony that will be using GCN.
Sure. I'm not neglecting GCN's higher efficiency at the current compiler tech levels. And I'm well aware of the flops' disadvantages as metrics.
You leave out one important factor, Cost. MAC mini are expensive something the wiiu cannot be....
While the minis surely have more expensive motherboards, their cooling system is bog standard. I've been using minis for a few model generations now, and I always service them myself. Mini's "secret" to staying cool in those little cases is nothing exotic or expensive - it's good old thermal engineering keeping all exhaust air paths ultra short. Basically, it's all a matter of how fast it can dispatch of the heat that builds up inside, and short air paths combined with a reasonable throughput fan do just fine there.
He was not saying PSU rating he was speaking of the console itself.
While the minis use nowhere near their PSU's rating during normal loads, they can (and do) occasionally reach the PSU ratings, as shown in
this official table (376 BTU/h is another way of saying 110W of thermal power).