AMD Ryzen AI Max+ 392 vs AMD Ryzen Embedded 9900X3D Comparison

The Verdict

The data shows two distinctly positioned AMD processors. The Ryzen AI Max+ 392 is a mobile-focused part with a complete benchmark profile, while the Ryzen Embedded 9900X3D has no recorded benchmark scores in the database, making direct performance comparison impossible. For users needing verified performance data, the AI Max+ 392 is the only option with measurable results. The Embedded 9900X3D offers higher clock speeds, double the L3 cache, and a newer PCIe generation, but without benchmark scores, its real-world standing remains unquantified. The AI Max+ 392 sits in the 96th percentile among all CPUs, indicating top-tier placement based on its recorded average score of 90,541. The Embedded 9900X3D, with a 50th percentile and zero average score, cannot be positioned against it from the available evidence.

Architecture Differences

Both chips use the same Zen 5 architecture and a 4 nm TSMC process node, with identical die sizes of 2x 70.6 mm². The core configuration matches: 12 cores and 24 threads each. The AI Max+ 392 uses the Strix Halo codename, while the Embedded 9900X3D uses Granite Ridge. The AI Max+ 392 has a base clock of 3.20 GHz and boost clock of 5.00 GHz, whereas the Embedded 9900X3D runs at 4.40 GHz base and 5.50 GHz boost, giving it a 1.20 GHz base advantage and 0.50 GHz boost advantage. The AI Max+ 392 is a mobile part on AMD Socket FP11 with a 55 W TDP, while the Embedded 9900X3D is a desktop part on AMD Socket AM5 with a 120 W TDP. Cache differs significantly: both have 80 KB L1 per core and 1 MB L2 per core, but the AI Max+ 392 has 64 MB shared L3, while the Embedded 9900X3D has 128 MB L3, double the capacity. The AI Max+ 392 supports LPDDR5X memory with a quad-channel bus and 256.0 GB/s bandwidth, while the Embedded 9900X3D supports DDR5 with a dual-channel bus and 89.6 GB/s bandwidth. The Embedded 9900X3D lists 16,630 million transistors, a figure absent for the AI Max+ 392. Both support ECC memory. PCIe differs: the AI Max+ 392 uses Gen 4 with 16 lanes (CPU only), while the Embedded 9900X3D uses Gen 5 with 24 lanes (CPU only). Integrated graphics also differ: the AI Max+ 392 has Radeon 8060S, while the Embedded 9900X3D has generic Radeon Graphics. The Embedded 9900X3D has an unlocked multiplier, the AI Max+ 392 does not. Release dates show the Embedded 9900X3D launched on 2025-10-06, while the AI Max+ 392 launched on 2026-01-05, roughly three months later.

Head-to-Head Benchmarks

The head-to-head benchmark table is empty, and the Embedded 9900X3D has no individual benchmark scores recorded. The database shows zero wins for each side in direct comparisons. The AI Max+ 392, however, has a full set of PassMark results. Its multithread score is 45,231, single-thread score is 3,927, and integer math score is 152,414. Floating point math reaches 99,548, extended instructions score 45,666, and data encryption hits 27,784. Data compression scores 554,760, random string sorting 59,487, find prime numbers 320, and physics 2,887. The average benchmark score for the AI Max+ 392 is 90,541, placing it in the 96th percentile. Its nearest rivals include the Intel Xeon 654 with an average score of 90,717 (0.2% higher), the AMD Ryzen 9 9955HX at 91,199 (0.7% higher), the Intel Xeon w7-2575X at 88,172 (2.7% lower), and the Intel Xeon 6736P at 87,864 (3.0% lower). These deltas show the AI Max+ 392 trailing the two leading rivals by less than one percent, while leading the two Xeon parts by roughly three percent. Without any recorded scores for the Embedded 9900X3D, no numerical comparison can be drawn between the two items in this section.

FAQ

Q: Which processor has more L3 cache?

A: The AMD Ryzen Embedded 9900X3D has 128 MB of L3 cache, which is double the 64 MB shared L3 cache found on the AMD Ryzen AI Max+ 392.

Q: What are the clock speed differences between the two?

A: The Embedded 9900X3D has a base clock of 4.40 GHz and a boost clock of 5.50 GHz. The AI Max+ 392 has a base clock of 3.20 GHz and a boost clock of 5.00 GHz. The Embedded part is higher in both metrics.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen AI Max+ 392 and the AMD Ryzen Embedded 9900X3D have ECC memory support listed in their specifications.

Q: How do the memory interfaces compare?

A: The AI Max+ 392 uses LPDDR5X memory with a quad-channel bus and a memory bandwidth of 256.0 GB/s. The Embedded 9900X3D uses DDR5 memory with a dual-channel bus and a memory bandwidth of 89.6 GB/s. The AI Max+ 392 has a substantially wider memory path.

Q: Which processor has a higher benchmark percentile?

A: The AMD Ryzen AI Max+ 392 is in the 96th percentile among all CPUs, while the AMD Ryzen Embedded 9900X3D is in the 50th percentile.

Q: Are the core counts identical?

A: Yes, both processors have 12 cores and 24 threads.

Where Each One Wins

The AMD Ryzen AI Max+ 392 wins in every measurable performance category, simply because it has recorded data. Its PassMark multithread score of 45,231, single-thread score of 3,927, and average benchmark score of 90,541 establish a concrete performance baseline. The 96th percentile placement confirms it ranks among the top CPUs in the database. Its memory bandwidth of 256.0 GB/s, achieved through a quad-channel LPDDR5X interface, is a clear advantage for memory-intensive workloads. The integrated Radeon 8060S graphics provides a specific graphics solution, whereas the Embedded 9900X3D only lists generic Radeon Graphics. The AI Max+ 392 also has a lower TDP of 55 W, making it more power-efficient on paper compared to the 120 W TDP of the Embedded part. Its mobile market segment and FP11 socket indicate a focus on compact, integrated systems.

The AMD Ryzen Embedded 9900X3D wins on raw specification advantages that are not backed by benchmark results in the database. Its 4.40 GHz base clock and 5.50 GHz boost clock are higher than the AI Max+ 392's 3.20 GHz and 5.00 GHz, which should translate to faster single-thread execution, though no scores confirm this. The 128 MB L3 cache is double the AI Max+ 392's 64 MB, a potential benefit for workloads with large working sets. PCIe Gen 5 with 24 lanes (CPU only) surpasses the AI Max+ 392's Gen 4 with 16 lanes (CPU only), offering more bandwidth and lane count for expansion. The unlocked multiplier on the Embedded part allows user overclocking, a feature the AI Max+ 392 lacks. The Embedded 9900X3D also has a documented transistor count of 16,630 million, which is not listed for the AI Max+ 392. Its desktop segment and AM5 socket target a different installation environment. The 2025-10-06 release date predates the AI Max+ 392's 2026-01-05 launch, making it an earlier available option.

Specification Differences

| Specification | AMD Ryzen AI Max+ 392 | AMD Ryzen Embedded 9900X3D |

|----------------|----------------------|----------------------------|

| Series | null | 9000 series |

| Cores | 12 | 12 |

| Threads | 24 | 24 |

| Base Clock | 3.20 GHz | 4.40 GHz |

| Boost Clock | 5.00 GHz | 5.50 GHz |

| TDP | 55 W | 120 W |

| Socket | AMD Socket FP11 | AMD Socket AM5 |

| Codename | Strix Halo | Granite Ridge |

| Generation | Ryzen AI Max (Zen 5 (Strix Halo)) | Ryzen Embedded (Zen 5 (Granite Ridge)) |

| Process Node | 4 nm | 4 nm |

| Foundry | TSMC | TSMC |

| Transistors | null | 16,630 million |

| Die Size | 2x 70.6 mm² | 2x 70.6 mm² |

| L1 Cache | 80 KB (per core) | 80 KB (per core) |

| L2 Cache | 1 MB (per core) | 1 MB (per core) |

| L3 Cache | 64 MB (shared) | 128 MB |

| Memory Support | LPDDR5X | DDR5 |

| Memory Bus | Quad-channel | Dual-channel |

| Memory Bandwidth | 256.0 GB/s | 89.6 GB/s |

| ECC Memory | true | true |

| PCIe | Gen 4, 16 Lanes (CPU only) | Gen 5, 24 Lanes (CPU only) |

| Integrated Graphics | Radeon 8060S | Radeon Graphics |

| Market Segment | Mobile | Desktop |

| Production Status | Active | Active |

| Release Date | 2026-01-05 | 2025-10-06 |

| Launch MSRP | null | null |

| Multiplier Unlocked | false | true |

| Part Number | 100-000001979 | 100-000001368E |

| Percentile vs All CPUs | 96 | 50 |

| Average Benchmark Score | 90,541 | 0 |