Tesla's NEW HW4 Car Computer 

Dave has all the skills of a master lecturer with all the knowledge necessary to explain things thoroughly. a true joy to watch and listen to..

Hi Dave, quick comment on the memory modules - Those are GDDR6 DRAM modules, similar to what are found on graphics cards. They are significantly faster than traditional DDR RAM that you would put in your computer, and they are in what's called "clamshell mode" where there's a DRAM module on the top and bottom of the board. This is important for GDDR6, because it allows you to double the capacity for of a GDDR6 controller (which would be important for running larger inferencing models.) The part number on screen is for a 14Gb/s module, which is not the fastest model that Micron makes, but it's significantly cheaper and more reliable from a signaling and board layout standpoint. On each chip, there are 4 interfaces, each capable of 56 Gigabytes/second. I work on GDDR memory (not at Micron or Tesla) so when I saw a familiar part number, I figured I'd share what I can! Thanks for the presentation!

Cory has a bad ass leader skills! And Dave did a great job here, what a treasure to have such talent available to us for free!

One of the best episodes! Dave was great. I learned a lot.

Dave seems awesome! More Dave tech spec content! !!!

Great video and appreciate the work you guys and gals do...

More Dave videos, please! He's a great teacher. Thanks.

Excellent teamwork. As someone who works in an adjacent sector to Dave's work, I give kudos for explaining it details very well.

44 years engineering in big auto electrics world wide and at last, my kinda channel.

Another articulate, personable and well organised expert. You guys are loaded with talent. 🤩😍🤩

Cory, Dave, you guys make watching technical detail stuff like diving into HW3 and HW4 differences interesting, even for someone who has no knowledge of car internals. Thnx to the team at Munro making very interesting observations and showing design decisions I have been looking with a total different eye at my own car . Thanks for all your excellent and detailed critical reviews that you brought to us. I would never image siting through hours of video’s of guys showing me car bodies and how well or not so well they were put together. I especially liked what you showed how getting rid of a few small parts that cast a few dollars end up saving the company millions of dollars. And we’re talking just about the part cost. But leaving out the handling and manufacturing of these parts will make out an ever bigger cost saving and even time saving. This brings Elon’s mantra “ the best part is no part” even more home.

You have such good timing! So many times I take a break and want a bit of quality 'TV' and see a Munro post within the last 10 or 20 minutes. Good Job!

Great closing. Love it when engineers respect each other and the work they do for the client. Keep up the great work, we love seeing the value you guys provide to the community all over the world.

Fantastic video! Personally I love hearing about the computer side of things, especially considering most people refer to Teslas as "computers on wheels". To that end, would have loved more technical detail on the CPU/GPU in the infotainment (if only for completeness), but I'm sure it's been covered elsewhere.

Wow!!! Wonderful presentation. More Dave and Cory thanks Sandy

The reason for the extra space on the FSD computer is the form factor. They moved the GPU to the main board of the infotainment board, which was dictated the size of the infotainment board and thus the enclosure. Also, more connectors on the side diictated on one of the sides dictated that dimension. It's very unlikely that they'll do a new revision with same HW4 chip - Tesla had a LOT of time to design it and would likely placed everything they needed ahead of time. As for retrofit, we 'know' that initially HW4 will be used in cars with the same number of cameras, so it brings value even with existing sensor locations. If Tesla deemed necessary they can build a retrofit HW4 board that would have similar form factor and connector locations with HW3 computer. They can easily fit the HW4 chips and comonents around it as we know there's spare space on the current board. Finally, as for the radar, I've worked on car radars and can confirm that the original radar Tesla was using was useless. It had no or very little Y-axis resolution so could not differentiate a wall from a bridge, the resolution was low and the data rate was very limited. The new radar uses 2-generation ahead of the original one, has Y-axis resolution, more cameras, higher 'frame' rate and better z-axis (distance) and x/y-resolution. It makes a world of a difference for Teslas applications which are much more than not hitting the car in-front like what most vendors currently use radars for. Elon said several times that hi-res radars bring value and his comments for removing the old radar was due to false detects with low-res radars which caused more damage than good.

Thanks, Dave! That was super informative, with a lot of great insight.

all of these non-sandy videos have been getting even better!

Clear. Concise. Technical as needed. Thank you Cory and Dave. Wonderful brain trust. The World is fortunate - because you share.

Excellent work as always from Munro team. Much appreciated.

Great job Dave. Phenomenal information.

❤I’m a sucker for a clear concise slide presentation.

great videos as usual, nice to see another member of the Monroe team.

Thanks for answering the question at the end about a retrofit for the current owners of Teslas. Great presentation. The future upgrades for FSD looks exciting with potential improvements.

Dave is awesome!

Great to see another Munro expert on the channel. 👍🏽

Great presentation. Could you do a show about the technical differences between the old Tesla radar and the new Tesla radar? For example: What the new radar can see vs what the old radar can see?

Thank you Dave and Cory, but especially Dave, for the insight and breakdown of the HW4 system. I don't come from an engineering background (but from a lower level tech background) but this channel has become my go-to for learning all kinds of engineering and is always a pleasure to watch. Should be required viewing for young and old aspiring engineers alike. Big thumbs up!

Dave you are an amazing guy!! Notice how he looks down when Cory praises him. I don't know why but this was quite a weteyed moment for me. This shows the Munro work enviroment!!!!

Thanks! Amazing stuff, we can always count on Munro to be informative and interesting to watch, thanks!

Great to meet and learn so much from Dave. He's super knowledgeable and a nice guy. Cory was great as always. All of you guys at Munro & Associates make a great team including the head honcho himself, the much admired and respected Sandy. Keep up the great work.

Thanks guys. Dave you did a great job. Thanks for breaking that down for us! Super valuable

Dave Great video and insights. Munro is truly the gold standard and offers excellent insight and information! Thanks very much

Dam- as always another #masterclass. And.. more Corey / Dave duo please! First time I’ve watched Dave here and much like the whole Munro crew- just a true master at his craft. Not a single media channel even comes close! To steal a Elon quote- second place needs a telescope to catch a glimpse of you guys. Just awesome!

Excellent work, Dave!

Great video. Thanks Cory and Dave for sharing details of the new Hardware HW$.

Really enjoyed this. Thanks to you both.

Wow great 👍 More of Dave please 😊😊

Almost teared up at the end. You guys are so lucky to be doing something you guys love together with people you like.

The screen helped us see and focus on the discussed components. The key advantages and nonretrofitability were well covered. Nicely done, guys!

Great job of showing the inside OUT💥

with more memory, it's safe to assume the memory bandwidth was also increased. Looking at the pastebin, HW4 has 2 ethernet ports and list 23 FSD sensors

Great job Dave!

Dave is great. He has a great humble way on explaining things. Thank you Dave!

Great job David, you were very well spoken and informative, I hope we see you again.

Very nicely done Dave!!!! Hope to see you doing more of these.

Thanks Munro! Fascinating piece of tech and very nice explanation from Dave!

Amazing analysis! Thank you for the great job you do!

Nice job! Always love these videos.

This was excellent, please more! Super interesting to see the boards and chips.

Working in IT I very much appreciate the technical breakdown. Dave is great! Not all geeks can explain things well

Excellent presentation, Dave. Great insights. And top-notch leadership skills on display Cory, showing deep appreciation to Dave and the Munro team. Awesomeness!

A wonderful watch from the UK. Would love to watch a live show of you guys in the UK. Good stuff Dave.

Great analysis from Dave! I really appreciate the other Munro team members sharing there deep knowledge and insights openly to the community like this and getting to see all of the new faces! :) thank you to all the Munro team

Thanks for detailed explanation! So helpful & beneficial!

Many many thanks Cory and Dave. Learned a lot more about HW4 from your video. Kudos to greentheonly for his scoop on this new tech from Tesla. :)

Dave, excellent presentation and in depth knowledge. As a network engineer with over 40 yrs experience, I remember this LAN technology pronounced E’-ther-net vs eth-er-net.

Love the video! "Unique New York" is an old acting exercise btw. Anchorman was using that as it's a standard pre-show warm up :)

Love the detail guys!

This is a great and detailed description of HW4. You guys bring so much to the party. 😎

Thank you Munro team great informational video! 😁🙏🏼🙋🏻‍♂️

Awesome stuff! Thanks gentlemen!

Super info/video!! Thanks a million!

Thanks Corey and Dave, great info. I saw some chatter on social media about HW4 and I'm so glad to have a Munro Live video on the topic so I don't have to waste hours sifting through uninformed opinions!

Dave rocks!!! Thanks for the video.

Great teardown video!

This was extremely insightful. Thank you Dave!

Super interesting. Thanks for sharing your insights

I loved it. This one was great.

The Joy of watching intelligent people speaking on interesting things. Glad to be here.

You probably already have this thought. My thoughts on the more RAM is 1. Higher resolution camera= more needed memory 2. Often sometimes when you redesign something, the older version of chips is going to be end of life soon and so it makes sense to plan new items with the current version so it's supported for 5 years or so. Also, it may actually be cheaper.

I was so in tune with the the two that I almost forget to thumbs up the this breakdown video. Thanks!!

@ 1:18 _"Talk to our team"_ You might have been right the first time ;)

The best channel to learn. I can’t believe we get this kind of content for free! So thankful for Monroe’s team, very informative and well presented video

Well explained Dave. Munro live in general is one of the best channels on RU-vid today. All of them are extremely intelligent & so professional. In regards too the HW4, I believe Musk did say it was not something that could be retro fitted.

GREAT video. Answered all my questions.

Great video as always.

Great job explaining the new hardware Dave!!!!

Spectacular content, thanks! Just knowing it's Linux is fascinating, better understanding automotive electronics packaging equally cool. All the best

Thank You! Dave = AWESOME!!! Super video!

Outstanding video gentlemen.

Fantastic ending to the video. Great job on this one.

One of the best videos you've done 👍

I like that we can see and understand what Dave's talking about. (When Uncle Sandy went through the interior of the Audi in an earlier vid, that wasn't always the case.)

cory doing some shaping work hot damn your effort is impressive and he's blasting with confidence and competence

Yes!

Whos that guy on the video with Dave? Thanks for the great video Dave!!

Thanks Dave

Cory is a class act. Well done and great video.

👍Good stuff, congratulation! 👏

More Dave, please.

Interesting

More EE stuff please! Great info.

Very useful 👍

Shout out to Dave. Brilliant.

A fine presentation, Dave. And Cory.

Have Dave on more. He is an exellent stand in for the authority that Sandy conveys.

Dave's good on camera, Thanks!

That was a really informative video, I hope Dave improves his health a little to be more comfortable and to keep providing his great knowledge.

Quality⭐⭐⭐⭐⭐