AMD Ryzen AI 9 PRO 465 vs AMD Ryzen AI Max PRO 390 Comparison

The AMD Ryzen AI Max PRO 390 and the AMD Ryzen AI 9 PRO 465 are both Zen 5 mobile processors, but the benchmark data reveals they are engineered for entirely different missions. The Max PRO 390, a 12-core Strix Halo part, is a brute-force performer that wins 9 of 11 head-to-head tests, while the 10-core Ryzen AI 9 PRO 465, a Gorgon Point chip, counters with a narrow but decisive single-thread advantage. The data paints a picture of two chips that share a lineage but diverge sharply on execution.

Head-to-Head Benchmarks

The Max PRO 390 asserts dominance in nearly every multi-threaded and compute-intensive workload. In the PassMark suite, its most crushing victory comes in find_prime_numbers, where it scores 323 versus 126 for the 465, a staggering 156.3% advantage. This is not a marginal lead; it indicates a fundamental difference in raw arithmetic throughput that likely stems from the 12-core versus 10-core configuration and the larger shared cache. The gap narrows somewhat in extended_instructions, yet the 390 still finishes 54.6% ahead (40888 vs 26441), showing strong performance in SIMD and cryptographic workloads. The physics test follows a similar pattern, with the 390 posting 2773 against 1747, a 58.7% lead that suggests better sustained multi-core scaling under physics simulation loads.

The pattern continues across the board. In floating_point_math, the 390 scores 94666 versus 66824, a 41.7% advantage. The integer_math test shows a 38.6% lead (148508 vs 107173), and multithread performance lands 36.3% higher (42912 vs 31485). Even memory-sensitive tasks favor the larger chip: random_string_sorting is 35.2% faster (55248 vs 40860), and data_compression comes in at 31.4% ahead (506170 vs 385174). The smallest multi-core victory is in data_encryption, where the 390 wins by 34.8% (26027 vs 19308). In every single one of these tests, the Max PRO 390’s additional cores and quadruple the L3 cache appear to translate directly into superior throughput.

The Ryzen AI 9 PRO 465’s only wins come in the single_thread and singlethread PassMark tests, where it scores 4168 versus 3967. That is a -4.8% delta for the 390, meaning the 465 is about 5% faster in single-core performance. While this is a narrow margin, it is a significant data point. It suggests that despite having fewer cores, the 465’s architecture or clock behavior allows it to edge out the 390 when only one core is active. Notably, both chips share a 5.00 GHz boost clock, so this difference is not a clock speed advantage; it points to other architectural efficiencies in the 465's design. The 390 still holds a 93rd percentile ranking among all CPUs, and its nearest rival, the Intel Core i9-13900KS, is a near tie at -0.4% delta, showing the 390 is competitive with top desktop-class parts. The 465 also sits at the 93rd percentile, with its closest rival being the Intel Core Ultra 7 255HX at -0.4%.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The AMD Ryzen AI Max PRO 390 is decisively faster. It wins the PassMark multithread test with a score of 42912 versus 31485 for the Ryzen AI 9 PRO 465, a 36.3% advantage. It also leads in all other multi-threaded tests, including a 54.6% lead in extended instructions and a 41.7% lead in floating-point math.

Q: Does the Ryzen AI 9 PRO 465 have any performance advantage?

A: Yes, in single-threaded performance. The 465 scores 4168 in the PassMark single_thread test, while the 390 scores 3967. This gives the 465 a -4.8% delta advantage (meaning it is 4.8% faster), which is the only benchmark category where it wins.

Q: How do these chips compare to their respective rivals?

A: The 390’s average benchmark score is 63765, putting it in a virtual tie with the Intel Core i9-13900KS (64051, -0.4%) and slightly ahead of the AMD Ryzen AI 7 450G (63331, 0.7%). The 465’s average score is 62498, which places it just behind the Intel Core Ultra 7 255HX (62738, -0.4%) and slightly ahead of the Intel Core i9-13900KF (61841, 1.1%).

Q: What is the difference in memory bandwidth?

A: The Max PRO 390 supports quad-channel LPDDR5X memory with a bandwidth of 256.0 GB/s. The Ryzen AI 9 PRO 465 uses dual-channel DDR5 or LPDDR5X memory with a bandwidth of 89.6 GB/s. The 390 offers nearly three times the memory bandwidth, which likely contributes to its large leads in data-intensive tasks.

Q: Do both processors have the same cache configuration?

A: No. Both have 80 KB of L1 and 1 MB of L2 per core. However, the 390 has 64 MB of shared L3 cache, while the 465 has only 16 MB. This significant difference in L3 capacity is a key architectural split.

Q: Are these chips on the same manufacturing process?

A: Yes, both are built on TSMC’s 4 nm process node and are based on the Zen 5 architecture. The 390 uses the Strix Halo codename, while the 465 uses Gorgon Point.

Architecture Differences

The most fundamental architectural divergence is the core count and cache hierarchy. The Max PRO 390 is a 12-core, 24-thread part with a 64 MB L3 cache, while the 465 is a 10-core, 20-thread part with only 16 MB L3. This 4x difference in L3 cache is massive and explains why the 390 dominates in tests like random string sorting and data compression, which benefit from larger working sets residing on-chip. The 390 also supports quad-channel memory with a bandwidth of 256.0 GB/s, whereas the 465 is limited to dual-channel with 89.6 GB/s. This memory bandwidth gap is a critical differentiator for any workload that streams large amounts of data.

The 465, however, has a structural advantage in its hybrid core design. Its generation is listed as "Ryzen AI PRO 400 (Zen 5 / Zen 5c)," indicating it uses a mix of full Zen 5 cores and more compact Zen 5c cores. The 390’s generation is simply "Ryzen AI Max PRO (Zen 5)," suggesting a homogeneous core layout. This could explain why the 465 achieves a higher single-thread score despite having a lower base clock (2.00 GHz vs 3.20 GHz) — a dedicated performance core might be boosting more efficiently in single-thread scenarios. Additionally, the 465 has a die size of 233 mm², while the 390’s die size is not listed, hinting that the 390’s larger cache and memory controller might occupy more silicon area.

Specification Differences

The two chips differ on several key specification fields. The 390 has 12 cores and 24 threads, while the 465 has 10 cores and 20 threads. The base clock is another clear split: the 390 runs at 3.20 GHz, while the 465 starts at a lower 2.00 GHz. Both share the same 5.00 GHz boost clock. The 390 has a TDP of 55 W, while the 465 is more power-efficient at 28 W. The 390 uses the AMD Socket FP11, while the 465 uses AMD Socket FP8. The 390’s memory support is exclusively LPDDR5X with a quad-channel bus, whereas the 465 supports both DDR5 and LPDDR5X over a dual-channel bus. ECC memory is supported only on the 390. The integrated graphics differ as well: the 390 features a Radeon 8050S, while the 465 has a Radeon 890M. Both use PCIe Gen 4 with 16 lanes, and neither is multiplier-unlocked.

Where Each One Wins

The Ryzen AI Max PRO 390 wins in any scenario that leverages multiple cores or high memory bandwidth. Its 36.3% lead in multithread and 41.7% lead in floating-point math make it the obvious choice for video rendering, 3D simulation, and scientific computing. The 156.3% advantage in prime number finding suggests exceptional integer throughput for cryptography or hash-heavy workloads. The 54.6% lead in extended instructions points to strong AVX-512 or similar SIMD performance, which is critical for AI inference and media encoding. The 390’s massive 64 MB L3 cache and 256 GB/s memory bandwidth also make it a superior option for database workloads and large-scale data analytics, as evidenced by its 31.4% win in compression.

The Ryzen AI 9 PRO 465 wins where single-core speed matters most. Its 4.8% lead in single-thread performance, despite a lower base clock, suggests it has better per-core efficiency. This makes it the better pick for lightly-threaded applications like legacy software, certain game engines that rely on one main thread, or general desktop responsiveness. Its lower 28 W TDP also implies it could sustain that single-core boost for longer periods in a thermally constrained chassis, where the 390’s higher 55 W TDP might cause it to throttle. For users who prioritize battery life and snappy UI interaction over raw compute, the 465’s strategy of winning the single-thread test is the relevant one.

The Verdict

The data is unambiguous: the AMD Ryzen AI Max PRO 390 is the performance king, winning 9 out of 11 head-to-head benchmarks. It offers massive leads in multi-threaded, memory-bandwidth-bound, and cache-sensitive workloads. Users who need maximum throughput for content creation, data processing, or heavy multitasking should select the 390. Its 93rd percentile ranking and near-parity with the Intel Core i9-13900KS confirm it is a top-tier mobile processor.

The AMD Ryzen AI 9 PRO 465 is the efficiency-focused alternative. While it loses most tests, its single-thread victory and lower TDP make it a better fit for thin-and-light laptops where thermal limits and battery life are paramount. The 465’s 93rd percentile ranking also shows it is a highly capable chip in its own right, just with a different priority. The choice comes down to a simple trade-off: the 390 for raw power, the 465 for per-core agility and power efficiency. The benchmark results do not suggest a universal winner; they suggest two well-defined market segments.