Tesla’s in-vehicle system uses Zen+ architecture embedded APU

by ddos · November 5, 2021

In June of this year, the electric car manufacturer Tesla held a delivery ceremony for its new electric car at its California plant, and officially released the Model S Plaid. In this event, Elon Musk fulfilled his previous promise, using the new in-vehicle infotainment system to play “Cyberpunk 2077”. It is said that the performance of this new in-vehicle system is equivalent to that of a PlayStation 5 game console.

Source: r/ElonMusk

At the Taipei Computer Show earlier, AMD CEO Dr. Lisa Su has confirmed that Tesla’s new cars will use AMD’s customized products but did not disclose too many details at the time. The center console of Model S Plaid uses a 17-inch touch screen with a resolution of 2200×1300, and there are two secondary screens in the car. Its new version of the in-car infotainment system using AMD GPU has long been confirmed. It is based on the Navi 23 core of the RDNA 2 architecture, but its CPU has no relevant information.

Recently, someone disassembled Tesla’s new car infotainment system and found that it was equipped with AMD’s APU, a customized Ryzen V180F embedded chip, based on Zen+ architecture, 4 cores, and 8 threads, 2MB of L2 cache, 4MB of L3 cache. The matching Navi 23 core is likely to be equipped with 28 CUs instead of the 32 CUs previously guessed. It has 1792 stream processors and the frequency is around 2.8 GHz. According to Tesla, the floating-point performance of the new car infotainment system is 10 TFLOPS, which is similar to the 10.28 TFLOPS of the PlayStation 5 game console.

In addition, the Wi-Fi/BT module is LG’s Innotek ATC5CPC001, Cell Modem is AG525R-GL of Quectel, the gateway is SPC5748GSMMJ6, the network switch is Realtek RTL9068ABD, DSP 1 is ADSP-SC587W SHARC+ dual-core DSP based on Arm Cortex-A5, DSP 2 is AD21584 SHARC+ dual-core DSP based on Arm Cortex-A5.

Tesla’s in-vehicle system uses Zen+ architecture embedded APU

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