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Tesla Model S/X gets updated MCU for faster, more responsive touchscreen display

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Tesla is reportedly using an improved MCU on newer versions of the Model S and X, replacing the aging NVIDIA Tegra-3 chip on the flagship sedan and SUV with a more powerful x86_64 processor. As could be seen in a side-by-side video comparing the performance and speed of the old and new media control unit, the updated hardware provides a smoother, faster, and more responsive experience on the Model S and X’s touchscreen.

The speed and fluidity, or lack thereof, of the Model S and X’s MCU has been a pain point for Tesla owners for a while, considering that the vehicles were equipped with 2011-era NVIDIA Tegra-3 chips. The shortcomings on the Model S and X’s interface became even more prominent when Tesla began switching from NVIDIA to Intel hardware to power its infotainment system, as evident on Model 3’s far more responsive touchscreen.

A Tesla spokesperson has confirmed with Teslarati that the company has recently introduced hardware changes to the onboard displays on the Model S and Model X. The update is part of the company’s overall initiative to introduce minor hardware changes and over-the-air software updates over time to continuously improve upon its vehicles. The latest update, unrelated to Autopilot, should not dramatically affect the user experience. Still, some new Tesla owners are reporting noticeable improvements in the browsing experience on the vehicle’s 17-inch touchscreen.

As could be seen in a recent collaboration video uploaded by YouTube’s My Tesla Adventure, the display of a recently-manufactured Model S seems to be on par with the speed and fluidity of the Model 3’s center touchscreen. In the side-by-side video, the Model S, which is equipped with an older Tegra-powered MCU, could be seen loading information a few seconds slower than the newer car. The touch panel on the newer Model S is also very vibrant, with the display featuring accurate color reproduction. A screenshot of the CPU information in the newer car also includes references to an x86_64 processor, something that is absent on older vehicles. 

A screenshot of the MCU from a new Model S showing references to an X86_64 chip. [Credit: MaxKW/Reddit]

Apart from a smoother user experience, the Model S and X’s upgraded MCU also features a pleasant surprise — a usable web browser. As could be seen in a brief test by Model S owner and r/TeslaMotors member u/MaxKW, the browser on his Model S is actually usable. It’s still not on par with the speed of mobile devices like smartphones and tablets, but the internet browser is already far more useful than the web explorer installed in older cars.

An enhanced browser for the Model S and X was teased by Elon Musk in a tweet back in December. As we noted in a previous report, Musk, who was responding to one of his followers on Twitter, admitted that the browser on the Model S and X was “terrible.” He did, however, assure his followers that major upgrades for the web explorer would be rolling out “in a few months.”

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“Yeah, it’s terrible. Had to upgrade old Linux OS and a bunch of drivers first. Major browser upgrades coming to all cars in a few months. Note, will be slower at first until code is optimized.”

Watch the side-by-side comparison of the old and new MCU for the Model S and X in the video below.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla brings perhaps the coolest interior feature to cars in latest update

Tesla adds on to the “fun” aspect of its vehicles.

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Credit: Tesla

Tesla has brought perhaps the coolest interior feature to its cars in a new update that is rolling out to vehicles now.

The feature will require a newer vehicle that has interior ambient lighting, which is present on the new Model S, Model X, Model 3 “Highland,” and Model Y “Juniper.” The Cybertruck also has ambient lighting strips throughout.

Tesla Model Y’s ambient lighting design changes revealed in leaked video

With the Version 2025.26+ Software Update, Tesla is rolling out a new “Sync Accent Lights w/ Music” feature, which is available on the Tesla Toybox:

To enable the feature, you’ll access the Toybox, choose “Light Sync,” and then choose “Sync Accent Lights w/ Music.”

Although it does not improve the performance of the vehicle, it is yet another example of Tesla making one of the coolest cars out there. This is truly a cool add-on that can be used to impress your friends and family.

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xAI, Musk Foundation helps schools near Memphis supercomputer site

Reports of xAI and the Musk Foundation’s work were recently posted by local news media.

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(Credit: xAI)

Elon Musk’s artificial intelligence startup xAI and the Musk Foundation have been supporting Memphis-Shelby County Schools with HVAC repairs and facility upgrades, while also funding youth programs for students in the area. 

Reports of xAI and the Musk Foundation’s work were recently posted by local news media.

xAI’s school visits lead to facility repairs

Representatives from xAI visited John P. Freeman Optional School, Fairley High School, and Westwood High School, all of which are located near its Colossus supercomputer site, to assess HVAC systems, plumbing, gym facilities, and athletic fields. The visits resulted in a list of priority repairs, some of which were completed in April and May.

In addition to the repairs, xAI also shared a number of initiatives that are planned for students in the area, as stated in a Commercial Appeal report.

“xAI is working on providing STEM workshops for local students, donating equipment to technical training programs, and supporting job fairs to boost employment opportunities. These initiatives reflect xAl’s commitment to fostering education and economic growth in Memphis,” xAI noted in a statement.

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Musk Foundation donation

Apart from xAI, the Musk Foundation also donated $350,000 to the Boys & Girls Clubs of Greater Memphis, enabling the reopening of two club sites located at Booker T. Washington High School and Westwood High School. Both locations had closed earlier this year due to lapses in funding. As per xAI, the Musk Foundation’s donation allows clubs to reopen for almost 1,000 students. 

The donation will fund staffing, supplies, and transportation, among others. “Kids are the future of humanity,” Elon Musk said in a statement, adding that students need “every chance to shoot for the stars.”

“We’re honored to support the Boys & Girls Clubs of Greater Memphis in reopening these sites, giving kids in underserved communities the tools to build brighter futures,” Musk said.

The gift was praised by local officials, including Boys & Girls Clubs board chair Michael Garriga, who stated that the “commitment will ensure the youth of our community have the opportunities they need to develop their skills and talents to become successful students and future citizens.”

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EV fans urge Tesla to acquire Unplugged Performance for edge in fleet and security industry

Unplugged Performance has built a name for itself by producing performance upgrades for Tesla vehicles.

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Credit: Unplugged Performance

A growing number of Tesla enthusiasts and longtime community voices are calling on the electric vehicle maker to acquire Unplugged Performance, a California-based aftermarket company best known for tuning Tesla vehicles and developing specialized government fleet solutions under its UP.FIT division.

The idea was once considered a niche proposal among EV fans, but it is now gaining serious attention not just as a performance play but as a strategic move to deepen Tesla’s roots in the fleet and security industry. 

A strategic fit

Unplugged Performance has built a name for itself by producing performance upgrades for Tesla vehicles, from track-optimized components to visual and aerodynamic upgrades. But in recent years, its UP.FIT division has pivoted toward a more functional future by outfitting Tesla vehicles like Model Ys for police, military, and government use.

That work has sparked growing calls for closer collaboration with Tesla, especially as the EV maker increasingly leans into autonomy, AI, and fleet services as core components of its next chapter.

“I posted this four years ago, but I think it’s more true now than ever,” wrote Whole Mars Catalog, a well-known Tesla investor and FSD Beta tester, on X. “Tesla should buy Unplugged. But not just as a Performance division. What they are doing with UP.FIT unlocks large government and commercial fleet purchases that can improve utilization.”

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Tesla fans such as shareholder Sawyer Merritt echoed the sentiment, calling Unplugged a “great fit within Tesla.” adding, “They are literally located directly next to Tesla’s design studio in Hawthorne.”

Enabling the next wave

Supporters of the idea noted that integrating Unplugged into Tesla’s corporate structure could help accelerate the adoption of autonomous technologies in government sectors. With UP.FIT patrol cars already in use across some U.S. police departments, Tesla fans envisioned a future where self-driving Teslas could potentially revolutionize law enforcement, search-and-rescue, and public service logistics.

“Just imagine how autonomous patrol cars could transform policing and bring us into a safer future,” the veteran FSD tester wrote.

The benefits could also extend to Tesla’s existing consumer base. “They also have some incredible products in the works that I think will appeal to many ordinary Tesla drivers — not just those looking for performance or mods. Stuff that’s so good it should have come straight from the design studio next door,” Whole Mars Catalog noted.

Unplugged Performance, founded in 2013, shares not just a product vision with Tesla, but also geography. Its Hawthorne headquarters sits directly adjacent to Tesla’s design studio, and the two companies have maintained a close working relationship over the years. The aftermarket firm has long positioned itself as a “mission-aligned” partner to Tesla.

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In response to the recent calls for acquisition, Unplugged Performance acknowledged the support from the community. “Our very existence is to support the Tesla mission with @UpfitTesla and @UnpluggedTesla,” Unplugged CEO Ben Schaffer posted on X. “We love working with Tesla and are grateful for the community’s support since 2013!”

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