PC-Engine said:
MechanizedDeath said:
PC-Engine said:
Ooh-videogames, your dream has come true.
Looks like Revolution won't have any problems with cooling considering the plethora of advanced low profile cooling solutions available. 8)
Heat pipes, fansinks...it doesn't matter. All these cooling solutions do is move heat from the chip to a place off the chip. That heat doesn't disappear (conservation of energy). All this thing does is lower the profile, which we've seen since the days of the blorb. Those were low-pro fansinks. Heat pipes are ancient, and peltiers are actually much better IMO. But it doesn't ignore the fact that they'll still be exhausing heat either into a really small case, or outside of it. I don't think this is a solution for the heat. Hollywood and Broadway will have to be low-voltage or low-clock to keep heat down. AND they'll still need a good cooling solution. And then the case, being small, needs good ventilation, hopefully without being very loud. PEACE.
Well thanks for pointing out the obvious.
The point is it's low profile which fits in nicely with the small form factor of Revolution. Take a close look at that card. Do you see a huge heatsink? How thick do you think that card is?
It's not obvious at all.
It would seem that most people are either confused about the issues of cooling, or simply ignorant. The cooling solution is indeed low profile, but what does that say other than that the ingenious pumps aren't very large? Nothing. The large size of some coolers is because they want a large surface area for
dissipation. The liquid metal is just a (good, presumably) way of transferring the heat, just as heatpipes can be. The dissipation part of the job is unrelated, and that's where the dual fans and cooling fins, i. e. the size of the cooler, come into the picture.
No, there are two main avenues for Nintendo to drop power use.
1. Use a better manufacturing process than their competitors, allowing them to cram more transistors onto the dies, while keeping voltages and power draw lower. They would presumably use this advantage to reduce their power draw relative to their competitors, rather than increase performance.
2. Remove redundant computing elements. Take the triple core XBox360 CPU as an example. How often will for instance the least used core be used at all? How often will it run at anything close to full utilization? How much would it
really cost you in terms of performance to simply drop down to a dual core chip? My guess - typically very little indeed. Witness the moaning we hear from developers (and reviewers) about even getting reasonable utilization from dual core desktop chips, and that's only a grand total of two load balanced threads....
Amdahls law applies mercilessly.
So by waiting for a process with better thermal properties, and reducing parallellism that will largely go underutilized, Nintendo could offer good performance within a much smaller thermal envelope. This would allow them to fit into a much sleeker package, and completely sidestep the size, noise, and reliability issues of a higher power draw design.
(Even on the same process, they could simply say - "To hell with the numbers game, we'll do the best we can within our design envelope", drop voltages and redundancy, and get large savings even with fairly small compromises in performance, due to how power draw increases with frequency at a given process. Bút if I were Nintendo, I'd try to hit 65nm out of the gate if at all possible.)