A fresh Geekbench leak has revealed what looks like a mysterious AMD Ryzen 9 processor running on AMD’s upcoming Medusa Point “Plum” evaluation platform, and the early details are already raising eyebrows—especially the cache setup.
AMD began rolling out its Plum “FP10” evaluation hardware last year, and earlier sightings pointed to 45W-class SoCs. This latest benchmark entry suggests that AMD is actively testing next-generation mobile silicon on that same platform and that at least one of those chips could be positioned as a Ryzen 9 model.
The processor appears in Geekbench under the ID “100-000001713-31_N” and is detected as an AuthenticAMD Family 26 Model 128 Stepping 0 part. In this run, it’s listed with 10 CPU cores and 20 threads and shows a 2.40 GHz base frequency. However, because it’s likely an engineering sample, real-world clocks during the test hovered closer to the 2 GHz range.
One more intriguing detail: Geekbench doesn’t clearly split the design into different core clusters (such as standard vs density-optimized cores). That could simply be down to how early this chip is, or because the benchmark tool isn’t properly identifying the core configuration on this unreleased platform yet.
Where things get especially interesting is the cache. The leak suggests 1 MB of L2 cache per core (10 MB total L2) paired with a single 32 MB L3 cache block. That’s notable because a comparable recent 10-core/20-thread AMD mobile design, the Ryzen AI 9 365, also uses 1 MB of L2 per core but carries 16 MB of L3 cache. If the Geekbench listing is accurate, this mystery Ryzen 9 chip doubles the L3 cache capacity, which could translate into meaningful gains in certain workloads, games, and latency-sensitive tasks—assuming clocks and other parts of the design line up.
The test system itself was configured with 32 GB of memory and was running in a “balanced” power profile, though the benchmark listing doesn’t specify the memory type.
So is this a Medusa Point APU? It’s too soon to say with certainty, but the platform context matters. Plum is widely associated with FP10 Medusa Point testing, and additional related IDs have reportedly been spotted as well, suggesting more than one chip is making the rounds in pre-release form.
Looking ahead, Medusa Point is expected to be a major next step for AMD’s mobile lineup. Current expectations point to Zen 6 CPU cores, an integrated graphics approach that mixes RDNA 5 and RDNA 3.5 elements, and an updated NPU aimed at accelerating AI workloads. If that roadmap holds, these chips could be officially introduced around CES 2026—meaning we’re still some time away from retail laptops, but leaks like this can offer an early glimpse at what AMD is preparing.
For now, the takeaway is clear: a 10-core, 20-thread Ryzen 9 engineering sample has surfaced on the Medusa Point “Plum” test platform, and its standout 32 MB L3 cache could be a key performance clue—if future leaks confirm the specs and reveal the final clocks, GPU configuration, and power targets.
