Elon Musk Claims on Tesla Chips Don't Match the Reality
bloomberg.com
bloomberg.com
Read the source: https://blogs.nvidia.com/blog/2019/04/23/tesla-self-driving/
Then read the Bloomberg article again, and tell me how that isn't complete spin towards a narrative that doesn't exist in the source.
Bloomberg is completely shameless in their anti-anything-Tesla narrative.
> But while we agree with him on the big picture—that this is a challenge that can only be tackled with supercomputer-class systems—there are a few inaccuracies in Tesla’s Autonomy Day presentation that we need to correct.
Ask yourself why nVidia would feel the need to put out anything given that they and Tesla are no longer collaborators. Do you believe they’d put out a “Cool claims by Tesla” press release if they didn’t feel the need to point out corrections?
nVidia must be short-selling Tesla stock. If Hacker News has taught me anything, it's that we can rest assured about our TSLA investments because the only reason anyone ever says something negative about - or disagrees with - Musk or Tesla is that they're short sellers and we've just gotta ride it out.
Drive PX Xavier - 30 TOPS - 30 Watts - https://en.wikipedia.org/wiki/Nvidia_Drive#Drive_PX_Xavier DRIVE AGX Pegasus - 320 TOPS - 500 Watts - https://en.wikipedia.org/wiki/Nvidia_Drive#Drive_PX_Pegasus
Both chips if scaled to 144 TOPS consume double the power of Tesla's solution.
I can understand that rationale, it's like making custom fit patch cables for your network rack that are exactly the length they need to be.
So, 500W is going to be well beyond that and wouldn't fit their requirements.
But that was only one of the issues. They also mentioned waste heat and being able to retrofit the computer to older cars as reasons to keep the power down.
That level of power use would take *noticeable" dents into the range of the car, especially in inner city driving.
Furthermore that's a lot of thermals to get rid of. 500w, crikey, speaking as someone who water cools his PCs, forget about retrofitting older cars! (That was one of the criteria!)
The existing units sit behind the glove box in front of the firewall, and are rather compact. The thermal budget was a hard one.
Nvidia are full of crap on this one.
All typical car manufacturers' message when rolling out something new: Buy the new car. Here, existing owners get access to a paradigm shifting feature, by just swapping out what will be an inexpensive module.
Tesla has nailed this upgrade, in my eyes. I don't own any of their cars (although I wish I did), nor do I have any shares.
ASCI Red was the first 1 TOP computer. It consumed 850kW of power and cost $46m. It was the fastest supercomputer in the world 19 years ago this June. Now we're arguing over whether all our cars will be driving around with a computer either 144 or 300x as fast using either 8500x or 1700x less power and costing in the neighborhood of 100,000x less.
I'm not defending Tesla's statements on the comparison between Tesla's hardware and Nvidia's hardware, but it feels that the author of the article took an advantage of Nvidia's post to dismiss Tesla's progress on this area.
So the correct way to look at this is that Tesla has a redundant 72 TOPS chip compared to nVidia Xavier 21 or 30 TOPS.
It’s nonsensical to compare a stack of chips versus another. NVidia claiming the fair comparison is a 320 TOPS system with 2 Xavier’s and 2 TensorCores pulling 500 watts total. A single Xavier provides 30 TOPS of Int8 at 30 watts.
The redundant Tesla setup by comparison pulls 100 watts total. [2]
A fact check that just parrots Nvidia’s blog with no actual research or fair presentation of the numbers may be par for the course but not terribly useful.
[1] - https://www.guru3d.com/news-story/tesla-develops-own-self-dr...
[2] - https://electrek.co/2019/04/23/nvidia-disputes-tesla-fsd-com...
Hmm... I recalled him saying 72w in the presentation compared to 54w in the previous hardware. Then he said this was within the allotted power envelope and wouldn't impact range.
I went back and it was around the 1hr 30min mark when they had the chip designer on stage answering questions.
Tesla spent several years designing their current chip, finishing about 1.5 years ago. They hired a industry guru to help them do it, I’m sure the financial investment was massive. Elon stated somewhat wryly “their entire expense sheet is FSD” which is to say their R&D spending in FSD dwarfs their other R&D spending.
They are also already working on a Gen2 of their just released chip for the last year plus.
For Tesla the hardware design is essential to achieving their goal. If they get FSD in the real world before everyone else, they can print money with the Tesla Network. And they simply can’t get there first using general purpose off the shelf hardware.
It’s a core part of the competitive advantage of the Tesla fleet. The fact that you can slot this new hardware into any AP2.5+ car shipped in the last couple years is an amazing perk of owning a Tesla. No other carmaker comes close to offering this kind of long-term support with software and hardware updates to a late-model-year car.
This isn’t quite like GPU vs ASIC for Bitcoin mining, for instance, because nVidia Xavier is already a special purpose chip for doing the Int8 calculations. Tesla isn’t competing against a graphics card being repurposed for FSD, they are competing against nVidia’s FSD offering, and using an industry standard metric (Int8 TOPS) to measure their performance.
> [Video] How can a company that has never designed a chip, design the best chip in the world?
They hire one of the best chip design teams in the world. Musk said this no fewer than two times during the presentation.
Having said that, an investor call isn't going to be that and Elon isn't the person to give it, so I'm not sure what Bloomberg (or Nvidia) wanted here. "CEO likes own technology" isn't exactly news.