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Tesla comparison: old Intel Atom GPU vs. the new AMD Ryzen APU (video)

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Because Tesla is a hybrid of an automotive and tech company, the hardware and software get deprecated sooner than most car owners throughout history have been used to. Just like computers or mobile phones, Tesla cars get constant hardware and software updates.

In December 2021, Tesla started installing an upgraded accelerated processing unit (APU) in the newly-built Tesla Model 3 and Model Y cars — the AMD RDNA 2-based Ryzen APU. Before this upgrade, Tesla Model 3 and Model Y used to have the basic low-level Intel Atom graphics processing unit (GPU).

The design-refresh Model S and Model X, however, had the new AMD RDNA 2-based GPU with 10 teraflops of gaming power since the start of their production as AMD CEO Lisa Su announced at Computex 2021 last year.

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An APU in a Tesla vehicle is responsible for running the normal operations of the Media Control Unit (MCU/infotainment system) — like maps, vehicle display rendering, Autopilot screen rendering, camera displays, music, browser, video apps like YouTube, video games, and other touchscreen functions. The latest version with the AMD Ryzen processor in Tesla Model 3 and Model Y is also called MCU3 by the Tesla Community.

Tesla and EV enthusiast Bjorn Nyland from Norway was able to get his hands on two Tesla Model 3 cars — one old 2019 model year with Intel Atom GPU and a new 2022 model year car with the AMD Ryzen APU (video below).

Navigation Maps

He first tested the old Model 3 for the performance of navigation maps, it works smoothly when the user zooms in and out but when the same functionality was tested on the new Model 3 with the AMD APU, the performance was much better.

Video

But the major performance difference was felt when Bjorn tested YouTube and the browser on both old and new Model 3s. YouTube app loading time was significantly better on the new Model 3 and the videos also ran smoothly, while on the old Model 3 with Intel Atom, the app loaded slowly and videos were jerky and frames were skipped. Bjorn also tested the internet speed as he was using a fast Wi-Fi connection for both tests, and this lag was not due to this factor.

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Browser

Tesla’s in-car browser has always been the least performing application on the center touchscreen and therefore the least used by Tesla car owners. But with the new AMD Ryzen processor (MCU3), the browser has become much faster and the scrolling has been smoothed out.

Bjorn browsed a heavy news website with tons of articles to vertically scroll (www.dn.no), only to be astonished at the performance enhancement with the new APU.

Range Decrease

The new AMD Ryzen GPU is more power-hungry compared to the old Intel Atom GPU, the same phenomena that we face in computers. This extra power consumption did slightly affect the driving range of Model 3/Y by about 13 miles (22 km). But Tesla overcame this problem with software tweaking, heat management in new vehicles, and constant innovation in battery technology.

Unfortunately, Tesla has not officially confirmed an AMD Ryzen retrofit option in the foreseeable future for old Model 3 and Model Y owners with the old Intel Atom graphics processor.

Let’s watch Bjorn Nyland testing both the old and new Model 3 for performance comparison with the Intel Atom and AMD Ryzen processors respectively.

Stay tuned for constant Tesla updates, follow us on: 
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By Iqtidar Ali

Iqtidar has been writing about Tesla, Elon Musk, and EVs for more than 3 years on XAutoWorld.com, many of his articles have been republished on CleanTechnica and InsideEVs, maintains a healthy relationship with the Tesla community across the Social Media sphere. You can reach him on Twitter @IqtidarAlii

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