AMD Ryzen AI 9 365 vs AMD Ryzen AI Max 390 Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen AI Max 390 records an average benchmark score of 56273, while the AMD Ryzen AI 9 365 records 40048. The Ryzen AI Max 390 also holds a higher percentile ranking at 91 versus 87 for the Ryzen AI 9 365.

Q: How do the two processors compare in Cinebench R23 multi-core performance?

A: The Ryzen AI Max 390 scores 36064 in Cinebench R23 multi-core, which is 48.2% ahead of the Ryzen AI 9 365's score of 18698.

Q: What is the difference in single-thread performance between the two chips?

A: In the PassMark single-thread test, the Ryzen AI Max 390 scores 4028, a 4.6% advantage over the Ryzen AI 9 365's 3841. The gap widens significantly in Cinebench R23 single-core, where the Ryzen AI Max 390 leads by 60.9% with a score of 5091 versus 1992.

Q: Do both processors use the same socket?

A: No. The Ryzen AI 9 365 uses AMD Socket FP8, while the Ryzen AI Max 390 uses AMD Socket FP11.

Q: What are the memory configurations for each processor?

A: The Ryzen AI 9 365 supports DDR5 and LPDDR5X over a dual-channel bus with 89.6 GB/s of bandwidth. The Ryzen AI Max 390 supports only LPDDR5X, but over a quad-channel bus with 256.0 GB/s of bandwidth.

Q: Which chip offers ECC memory support?

A: The Ryzen AI Max 390 includes ECC memory support. The Ryzen AI 9 365 does not.

Architecture Differences

The two processors share the same Zen 5 architecture and are both manufactured by AMD on TSMC's 4 nm process. Core counts differ: the Ryzen AI 9 365 has 10 cores and 20 threads, while the Ryzen AI Max 390 has 12 cores and 24 threads. The Ryzen AI 9 365 uses the Strix Point codename from the Ryzen AI 300 generation, which combines Zen 5 and Zen 5c cores. The Ryzen AI Max 390 uses the Strix Halo codename with a full Zen 5 implementation.

Cache organization diverges substantially. Both chips allocate 80 KB of L1 per core and 1 MB of L2 per core. The L3 cache is the major difference: the Ryzen AI 9 365 has 16 MB of L3, while the Ryzen AI Max 390 has 64 MB of shared L3, a fourfold increase. This larger shared pool directly benefits workloads that repeatedly access large data sets.

The die designs are unrelated. The Ryzen AI 9 365 measures 233 mm² as a single die. The Ryzen AI Max 390 uses a chiplet layout described as 2x 70.6 mm². Neither chip has 3D V-Cache.

Memory architecture differs in both channel count and supported types. The Ryzen AI 9 365 runs a dual-channel memory bus with support for DDR5 and LPDDR5X, providing 89.6 GB/s of bandwidth. The Ryzen AI Max 390 moves to a quad-channel bus limited to LPDDR5X, delivering 256.0 GB/s. That bandwidth advantage is central to the Ryzen AI Max 390's positioning, as it feeds both the CPU and the integrated graphics. The Ryzen AI Max 390 also supports ECC memory, a feature absent from the Ryzen AI 9 365.

Base clock speeds separate the two further. The Ryzen AI 9 365 starts at 2.00 GHz and boosts to 5.00 GHz. The Ryzen AI Max 390 starts at 3.20 GHz and also boosts to 5.00 GHz. The higher base clock, combined with more cores, gives the Ryzen AI Max 390 a structural advantage in sustained multi-threaded work.

Thermal design power marks the largest practical difference. The Ryzen AI 9 365 has a TDP of 28 W, while the Ryzen AI Max 390 has a TDP of 55 W. This nearly doubles the power envelope, which explains the Ryzen AI Max 390's higher sustained performance and also implies different cooling requirements in mobile systems.

Both chips integrate Radeon graphics but different SKUs. The Ryzen AI 9 365 carries the Radeon 880M, while the Ryzen AI Max 390 carries the Radeon 8050S. Both use PCIe Gen 4 with 16 CPU lanes. Neither chip has an unlocked multiplier. The Ryzen AI 9 365 was released on 2024-06-30, while the Ryzen AI Max 390 followed on 2025-01-05.

The Verdict

The recorded data points to a clear performance hierarchy. The Ryzen AI Max 390 wins every head-to-head benchmark in the database, 15 out of 15. Its average benchmark score of 56273 places it 40.5% above the Ryzen AI 9 365's 40048. Its percentile ranking of 91 versus 87 confirms that it sits higher among all CPUs tracked by the database.

Systems that prioritize compute throughput should use the Ryzen AI Max 390. Its 12 cores, 24 threads, 64 MB of L3, and 256.0 GB/s of memory bandwidth deliver decisive advantages in multi-threaded rendering, data compression, encryption, and physics calculations. The 55 W TDP is the price of that performance, and the data shows it is a price that pays off across nearly every metric.

The Ryzen AI 9 365 remains relevant for a different class of mobile design. Its 28 W TDP fits thinner, lighter platforms where power draw is the binding constraint. Its single-thread PassMark score of 3841 trails the Ryzen AI Max 390 by only 4.6%, so lightly threaded daily tasks do not suffer a dramatic penalty. The 89.6 GB/s memory bandwidth and 16 MB of L3 are modest, but they are matched to a smaller core count and a lower power envelope.

The choice depends on whether the workload needs the Ryzen AI Max 390's full resource pool or can live within the Ryzen AI 9 365's tighter power budget. For raw performance, the Ryzen AI Max 390 is the unambiguous pick from the benchmark data. For power-constrained systems that still want Zen 5 efficiency, the Ryzen AI 9 365 is the only one of the two that fits.

Specification Differences

| Specification | AMD Ryzen AI 9 365 | AMD Ryzen AI Max 390 |

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

| Cores | 10 | 12 |

| Threads | 20 | 24 |

| Base Clock | 2.00 GHz | 3.20 GHz |

| Boost Clock | 5.00 GHz | 5.00 GHz |

| TDP | 28 W | 55 W |

| Socket | AMD Socket FP8 | AMD Socket FP11 |

| Codename | Strix Point | Strix Halo |

| Generation | Ryzen AI 300 (Zen 5 / Zen 5c) | Ryzen AI Max (Zen 5 (Strix Halo)) |

| Die Size | 233 mm² | 2x 70.6 mm² |

| L3 Cache | 16 MB | 64 MB (shared) |

| Memory Support | DDR5, LPDDR5X | LPDDR5X |

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

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

| ECC Memory | No | Yes |

| Integrated Graphics | Radeon 880M | Radeon 8050S |

| Release Date | 2024-06-30 | 2025-01-05 |

| Part Number | 100-000001530 | 100-000001423 |

Head-to-Head Benchmarks

The Ryzen AI Max 390 dominates the head-to-head results, but the margins vary widely by workload. The largest gap appears in Cinebench R23 single-core, where the Ryzen AI Max 390 scores 5091 against 1992 for the Ryzen AI 9 365, a 60.9% lead. The Cinebench R23 multi-core result tells a similar story: 36064 versus 18698, a 48.2% advantage. The Ryzen AI Max 390 also wins Cinebench R15 multi-core with 3635 versus 2842, a 21.8% margin, and Cinebench R15 single-core with 513 versus 303, a 40.9% margin.

PassMark results confirm the pattern across several distinct workloads. The largest percentage win is in PassMark find prime numbers, where the Ryzen AI Max 390 scores 316 versus 117, a 63.0% advantage. PassMark physics shows a 38.3% lead (2761 versus 1704). Extended instructions favor the Ryzen AI Max 390 by 35.1% (38716 versus 25113). Floating point math goes 90594 versus 62802, a 30.7% lead, and integer math goes 146519 versus 101831, a 30.5% lead.

Data-oriented tasks follow the same direction. PassMark multithread scores 41737 for the Ryzen AI Max 390 against 29467 for the Ryzen AI 9 365, a 29.4% margin. Data compression shows 487145 versus 354510, a 27.2% lead. Data encryption goes 25097 versus 18297, a 27.1% margin. Random string sorting favors the Ryzen AI Max 390 by 25.7% (53113 versus 39447).

The narrowest margin in the entire comparison is PassMark single-thread, where the Ryzen AI Max 390 scores 4028 versus 3841 for the Ryzen AI 9 365, a 4.6% lead. That result is notable because it shows the two chips are close when the workload only uses one core. The Ryzen AI Max 390's higher base clock of 3.20 GHz versus 2.00 GHz helps, but the difference is small compared to the multi-threaded gaps.

The overall pattern is consistent: the Ryzen AI Max 390 wins by double digits in almost every test, with the single-thread PassMark test as the only near-parity result. The Ryzen AI 9 365 does not win a single recorded head-to-head benchmark. The Ryzen AI Max 390's nearest rival in the database is the AMD Ryzen AI 9 HX PRO 470 with a delta of -0.1%, followed by the Intel Core i9-14900HX at +0.5%. The Ryzen AI 9 365's closest rival is the AMD Ryzen 7 7700 at -0.1%. These rival deltas place both chips in competitive company, but the direct comparison between the two AMD parts is one-sided.