• AMD’s rumored “Sound Wave” chip is claimed to be an Arm-based APU
• It is believed to characteristic “RDNA 3.5+” CUs which can be “enhanced” for machine studying
• MLID’s sources allege the chip will characteristic 16MB Infinity Cache

Alleged new info has been uncovered in regards to the rumored AMD “Sound Wave” APU, claiming it will likely be extra in direction of machine studying, with “enhanced RDNA 3.5” CUs.

The information comes from dependable {hardware} leaker Moore’s Legislation is Useless in a brand new YouTube video, with an extended checklist of up to date specs cited from “Late March 2025”. It is a substantial replace on the earlier rumor that we lined again in March 2024.

Beforehand, it was believed that AMD’s Sound Wave processor can be a Zen 6 cell chipset. Nonetheless, it is now claimed by MILD that the processor will likely be an Arm-based APU, just like the likes of Qualcomm’s Snapdragon X lineup as an alternative.

Particularly, MLID’s sources declare that AMD’s Sound Wave APU will likely be constructed on a TSMC 3nm node, focusing on 5-10W type components, with two efficiency cores, 4 effectivity cores (six whole), and 4MB of L3 cache. Crucially, it is alleged that there will likely be 4 RDNA 3.5 CUs with “improved ML Efficiency” which has been given the title of “RDNA 3.5+” unofficially, to indicate a distinction from the present RDNA 3.5 CUs obtainable on chips.

Its capabilities for AI computing seem like a essential focus, as could be evidenced by the supposed “4th Technology AI Engine” backed by 16GB LPDDR5X-9600 RAM which is claimed to be for the “Normal” programs. MLID doesn’t know if the newer RDNA 3.5 CUs will permit for FSR 4. Nonetheless, gaming seems to be a secondary concern for this silicon.

An attention-grabbing improvement for the Sound Wave APU is that it’ll allegedly characteristic 16MB of Reminiscence Entry at Final Stage (MALL) cache (identified to AMD customers as Infinity Cache) which is uncommon for a 5-10W APU. It is curious as a result of “Strix Level” doesn’t have this, which is reportedly “documented” by MLID.

MLID later factors out how the AI engine, CPU, and GPU will all work on the identical controller, so having the additional bandwidth of 16MB Infinity Cache shared between them could possibly be helpful, even on such a modest chip.

AI computing with out the facility draw

Whereas it is nonetheless early days for Sound Wave, all of the rumors we have heard from the chipset sound as if it is primarily being geared round AI workloads with out the (often) excessive energy attracts of rival {hardware}. 16MB of Infinity Cache would not sound too dramatic an inclusion at first, nevertheless, that is earlier than bearing in mind that the chip is barely rated between 5-10W TDP.

Moreover, the RDNA 3.5+ CUs could possibly be an enormous driving consider AI workloads, relying on how optimized they are surely for machine studying. With a 2026 launch date claimed, it is unlikely we’ll obtain official phrase from AMD any time quickly, however we now realize it could possibly be an optimized Arm-based APU relatively than the chip that ushers in Zen 6 as we beforehand thought.

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