AMD’s upcoming ‘Medusa Halo’ APUs may feature LPDDR6 memory—recent leaks indicate the Ryzen AI MAX 500 series could offer 80% higher memory bandwidth

AMD Strix Halo Ryzen AI Max
(Image credit: AMD)

Following its acclaimed Strix Halo APUs, AMD will update its premium gaming APU lineup with Gorgon Halo, aligning it with the recently unveiled Gorgon Point, also known as the Ryzen AI Max 400 series. The real excitement might come afterward, as the true next-generation upgrade is expected to arrive as "Medusa Halo" sometime in 2027–28. This rumored high-end APU could include Zen 6 CPU cores and RDNA 5 graphics. Now, another leak from well-known leaker Olrak29_ claims it will also support LPDDR6 memory.

Currently, Strix Halo includes a 256-bit LPDDR5X memory controller capable of 8,000 MT/s speeds, delivering a bandwidth of 256 GB/s. The Gorgon Halo refresh might raise that figure to 273.1 GB/s with its 8,533 MT/s setup.

When we introduce Medusa Halo alongside LPDDR6—still using the same 256-bit memory bus—at 14,400 MT/s, we achieve 460.8 GB/s of peak bandwidth, roughly 80% greater than the current-generation Strix Halo.

Previous rumors claimed the bus width would be increased to 384-bit on Medusa Halo, yielding a staggering 691.2 GB/s of memory bandwidth.

Higher memory bandwidth on powerful APUs such as the Halo series is becoming increasingly vital as AMD positions its Halo series not just for gaming but also for AI workloads. LLM inference depends on memory bandwidth to achieve high performance, making the raw throughput of shared memory a crucial factor to consider. And Medusa Halo appears set to deliver on this front.

AMD's rivals aren't standing idle in this area. Intel's Panther Lake boasts the fastest x86 memory controller currently available, thanks to its support for LPDDR5X-9600, even though Intel has publicly denied developing an integrated graphics processor as large as Strix Halo's. Meanwhile, Apple’s M-series SoCs reach a peak of 819 GB/s on the M3 Ultra with its 1,024-bit interface.

Take all these figures with a grain of salt, though, since AMD hasn’t even confirmed a Gorgon Halo refresh, much less a Medusa Halo; that product line is probably still a couple of years away at this point. The company just launched two new Strix Halo SKUs at CES last month, so Strix Halo isn’t finished yet. Roadmap leaks thus far suggest AMD will carry RDNA 3.5 graphics across much of its lineup through 2027–28, though Medusa Halo might be an outlier.

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Hassam Nasir
Contributing Writer