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Where you're defining better as faster, however, it uses enormously more energy, which impacts overall driving range. It doesn't need to be faster past a certai
by SEJeff 7y ago
Where you're defining better as faster, however, it uses enormously more energy, which impacts overall driving range. It doesn't need to be faster past a certain point. They've already got enough bandwidth to run the entire set of self driving neural networks in duplicate at production speed on the current FSD hardware version 3 computer. There is a point of diminishing returns wrt speed and I think we're quickly approaching if not already surpassing it. Now it is down to efficiency, which the Nvidia solution gets utterly spanked by Tesla's computer on. Ever ran CUDA simulations? GPUs always use enormous amounts of power to do anything, but they're incredible at floating point math.
- usrusr 7y agoIt that just enormously more energy if it was running in a portable device or is that actually enormously more energy when running off half a metric ton of traction battery? Nvidia has plenty of experience in scaling their chips down to a wide range of performance/energy tradeoffs.
- SEJeff 7y agoAnd nvidia’s faster neural network solution they say is faster than Tesla’s Chip still uses loads more power than Tesla’s chip does.
- rootusrootus 7y agoDoes Tesla really care that much about efficiency? Sentry mode chews through about 1 mile of range for every single hour it is active. My doorbell camera takes significantly less power to do motion detection than my Model 3 does.
- SEJeff 7y agoDoes your doorbell camera have one or eight cameras? The Model 3 has eight cameras. You’re comparing apples to orangutans.
- rootusrootus 7y agoYou're fanboying for Tesla. The car is pulling as much juice as a gaming rig. The doorbell uses like three orders of magnitude less power. And what do I get for all that power it's consuming? It routinely misses cars and people literally inches away. Sometimes it records, sometimes it doesn't. And lately my car has decided 90% of the time not to turn on the dashcam, though sentry mode activates pretty reliably. It's half-assed. Tesla needs fans to hold them accountable instead of white-knighting for them.
- SEJeff 7y agoYou sidestepped my questions. Does your doorbell have one or eight cameras? Even if tesla did it as efficiently as your camera, it would be, at a minimum, eight times more energy. If they do anything fancy with a neural network (which they almost certainly do), they it might be another 2x the power. Then you have 10x the power which is one order of magnitude. Quit making false comparisons to your crappy doorbell. It is very different and they're designed for very different things. They don't work the same.
- Dylan16807 7y ago> You sidestepped my questions. No they didn't. First off it doesn't need to use all eight cameras, but "three orders of magnitude" is obviously way more than 8x. > If they do anything fancy with a neural network (which they almost certainly do), they it might be another 2x the power. If it takes more power to do the same calculations, that's a bad thing, not a defense. > Then you have 10x the power which is one order of magnitude. "It does it super inefficiently, and then uses 10x power on top of that somehow" is awful! Also you're rounding way down. The comparison to the doorbell makes a lot of sense, and "not working the same" is irrelevant to the complaint.