AMD's "Sound Wave" Arm-Based SoC: What We Know So Far
Despite AMD’s previous statements downplaying the inherent efficiency advantages of the Arm instruction set architecture (ISA), recent developments suggest the company is actively working on an Arm-based system-on-chip (SoC) codenamed “Sound Wave.” Shipping manifests, recently highlighted by industry observers, reveal that the Sound Wave APU has reappeared after a period of inactivity, signaling renewed progress on the project.
Technical Specifications and Design
The Sound Wave SoC is packaged in a BGA 1074 format, featuring 1,074 pins. This ball grid array design is intended for embedded systems, meaning it is soldered directly onto the motherboard rather than using a removable socket. The chip measures a compact 32 × 27 mm, making it well-suited for mobile devices such as handheld gaming consoles and laptops.
Sound Wave utilizes the FF5 socket, which is an update over the FF3 socket found in the Valve Steam Deck’s SoC. The new socket features a 0.8 mm pitch, further optimizing the design for compact and efficient mobile applications.
Architecture and Performance
As an Arm-based design, Sound Wave is expected to leverage a big.LITTLE architecture. Early indications suggest configurations with two high-performance cores (P-Cores) and four efficiency-focused cores (E-Cores), resulting in a six-core SoC. Graphics processing is handled by an integrated RDNA 3.5 GPU, with the top-tier model offering up to four compute units (CUs).
This combination of CPU and GPU power is engineered to operate within a 10-watt thermal design power (TDP) envelope. Such efficiency is ideal for devices that require long battery life, particularly for extended gaming sessions on the go. Additionally, AMD is likely to offer customizable TDP options, allowing manufacturers to tailor performance and power consumption to specific product requirements.
Market Position and Competitive Landscape
The exact market segment targeted by the Sound Wave SoC remains unclear. However, the timing is notable as competition in the Arm-based processor space intensifies, with companies like Qualcomm and NVIDIA preparing their own next-generation solutions. The flexibility and efficiency of Arm architectures are increasingly attractive for mobile and embedded applications, and AMD’s entry could further accelerate innovation in this area.
At this stage, details regarding the launch timeline and pricing for the Sound Wave APU are not available. It also remains to be seen how AMD will integrate this SoC into third-party designs or its own product lineup. As more information emerges, the industry will be watching closely to see how AMD’s Arm-based strategy unfolds in a rapidly evolving market.
