Deep Dive into Xiaomi Electric Car's ECU: Benchmarking Tesla, Coming Out on Top

In order to delve into the inner workings of Xiaomi's electric car's ECU, disassembly expert Yang Changshun dissected a brand-new vehicle's ECU to examine its NVIDIA and Qualcomm chips. This in-depth teardown report meticulously compares the Xiaomi car's ECU to Tesla's, showcasing the former's superiority in terms of configuration, craftsmanship, and design

In order to delve into the inner workings of Xiaomi's electric car's ECU, disassembly expert Yang Changshun dissected a brand-new vehicle's ECU to examine its NVIDIA and Qualcomm chips. This in-depth teardown report meticulously compares the Xiaomi car's ECU to Tesla's, showcasing the former's superiority in terms of configuration, craftsmanship, and design.

Layout Comparison: Striking Similarity to Tesla

Upon dissection, the ECU layout mirrored Tesla's almost exactly. The grid lighting and font library were also identical to Tesla's. This comparison suggests that Xiaomi's car design heavily benchmarked Tesla's.

Cooling System: Massive Fan, Waterproofing

The disassembled ECU featured a large cooling fan to ensure the system's stability. Notably, Xiaomi's ECU also underwent waterproofing treatment, employing hard rubber to seal the chips completely, preventing damage from moisture and water ingress.

Chip Comparison: Superior NVIDIA Chip

Xiaomi's ECU is equipped with an NVIDIA chip that outperforms the NVIDIA chip used in Tesla's ECU. Xiaomi's chip is physically larger in both thickness and size compared to Tesla's, and offers more computing power.

Additional Highlights: Boosted Graphics, Excellent Craftsmanship

Xiaomi's ECU also surpasses Tesla's in terms of graphics processing capabilities. The power supply section is more robust, and the overall craftsmanship is impressive. Furthermore, Xiaomi's ECU omits button batteries, while Tesla's ECU utilizes two.

Xiao AI Control Chip: Exceptional Temperature Control

The chip responsible for Xiao AI's control functions operates at a significantly lower temperature (55 degrees) under no-load conditions compared to Apple's CPU. This indicates that Xiaomi has made significant efforts to optimize Xiao AI's control efficiency.

Excessive Fan Control: Wastage of Resources

The teardown revealed an excessive number of fan control pins, resulting in resource waste. The engineers may have been pursuing enhanced cooling capabilities, but the use of additional pins likely incurs higher costs.

Core Chips: Dual NVIDIA Chips

Xiaomi's ECU is equipped with two NVIDIA chips, equivalent to having two 4090 graphics cards in the vehicle. These chips provide ample computing power for Xiaomi's autonomous driving and smart cockpit systems.

Key Chip Summary

1. NVIDIA Orin Chip (2x): Combined computing power of 508TOPS, enabling 508 trillion calculations per second.

2. Qualcomm 8295 Chip: Industry-leading smart cockpit chip.

3. Qualcomm 6695 Chip: Provides Wi-Fi and font library functionality.

4. 8295u Power Chips (4x): Power supply for the 8295 main chip.

Xiaomi's ECU demonstrates the company's commitment to high quality in terms of configuration, craftsmanship, and design. The NVIDIA and Qualcomm chips employed in its ECU represent the industry's cutting-edge, empowering Xiaomi's electric car with robust autonomous driving and smart cockpit capabilities. Additionally, Xiaomi's attention to detail in areas such as cooling, waterproofing, and optimization is commendable.

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