Soundwave said:
Even at 5 watts, that's 100 GFLOPS/watt, if Nvidia was actually achieving that, everyone would be using Nvidia. You could have a 1.4 teraflop machine for just 14 watts, the XBox One die shrunk to 14nm/16nm (even smaller than the Tegra X1's 20nm) still consumes over 60 watts ... there's no way Nvidia has such magic up their sleeves, especially with a chip that is about two years old. |
No, this is incorrect. Power consumption increases quadratically with the clock frequency! A good GFLOP/watt ratio is very well possible with a very low clocked GPU or CPU.
Oh and btw. Mdave also showed that the CPU throttles the GPU and vice versa. His tests give a good reason also for the 1Ghz clock rate of the CPU. It seems that Nintendo just fixed the clocks of the CPU and GPU at a reasonable frequency that the system can handle maintain for a longer time without throttling.
If you read the thread, it seems we are still quite a bit away from having a whole picture of whats going on inside the switch. Nintendo typically does quite of customization to the chips. Even a 16nm process isnt out of the question. That would give room for quite a bit more souce.