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 1. Home
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 3. October 2025
 4. AMD Could Enter ARM Market with Sound Wave APU Built on TSMC 3nm
    Process


AMD Could Enter ARM Market with Sound Wave APU Built on TSMC 3nm
Process

Published 2025-10-13 18:01 by Hilbert Hagedoorn

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teaser
AMD is expanding its processor portfolio beyond the x86 architecture
with its first ARM-based APU, internally known as "Sound Wave." The
chip's existence was uncovered through customs import records,
confirming several details about its design and purpose. Built with a
BGA-1074 package measuring 32 mm x 27 mm, the processor fits within
standard mobile SoC dimensions, making it suitable for thin and light
computing platforms. It employs a 0.8 mm pitch and FF5 interface,
replacing the FF3 socket previously used in Valve's Steam handheld
devices, further hinting at a new generation of compact AMD-powered
hardware.


According to leaks from industry insiders such as @Moore's Law Is
Dead and @KeplerL2, "Sound Wave" is manufactured on TSMC's 3 nm node
and aims for a 5 W to 10 W TDP range, positioning it directly against
Qualcomm's Snapdragon X Elite. The chip is expected to power future
Microsoft Surface products scheduled for release in 2026. "Sound
Wave" reportedly adopts a 2 + 4 hybrid core design, consisting of two
performance and four efficiency cores, paired with 4 MB of L3 cache
and 16 MB of MALL cache, a memory technology inspired by the
"Infinity Cache" used in AMD's Radeon GPUs. This configuration is
relatively uncommon in low-power APUs and aims to improve
responsiveness and multitasking under constrained thermal conditions.
On the graphics side, the processor integrates four RDNA 3.5 compute
units, offering light gaming support and optimized machine learning
acceleration.

Memory support is another highlight: the chip integrates a 128-bit
LPDDR5X-9600 controller and will reportedly include 16 GB of onboard
RAM, aligning with current trends in unified memory designs used in
ARM SoCs. Additionally, the APU carries AMD's fourth-generation AI
engine, enabling on-device inference tasks and enhanced efficiency
for workloads such as speech recognition, image analysis, and
real-time translation.

While AMD experimented with ARM over a decade ago through the
abandoned "Project Skybridge," this new effort represents a more
mature and strategic approach. With industry interest in efficient,
ARM-based computing accelerating, "Sound Wave" could help AMD
diversify its portfolio while leveraging its strengths in graphics
and AI acceleration. If reports are accurate, the processor will
enter production in late 2025, with commercial devices expected the
following year.

6890

Source: ithome

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