Posts: 84 +110
But they are still getting more efficient in terms of throughput per watt, its just that they've also significantly bumped up the power at the same time.What's concerning is the reversal of a trend where GPUs were actually getting more efficient while maintaining similar incremental performace improvements. It's fair to ask what the reasons are.
The problem that they're starting to run into (and that will get much, much worse over the next decade) is that transistor sizes are almost at the limit of how small you can go before quantum tunneling of electrons between transistors is impossible to mitigate.
It wont be long until they're making 2nm chips, at which point there will only be a wall of silicon between each transistor less than 10 atoms thick. You simply cannot go any smaller than that with traditional silicon transistor construction, and therefore that's also the limit for efficiency.
We're getting awfully close to smacking face first into the wall, and nobody is talking about it