AMD Ryzen AI Max+ PRO 395 vs Intel Core Ultra X9 388H Comparison

Where Each One Wins

The benchmark record splits these two mobile processors into distinct territories. The AMD Ryzen AI Max+ PRO 395 claims 9 of the 15 head-to-head comparisons, while the Intel Core Ultra X9 388H takes 6. The distribution of those wins is not random; it follows a clear pattern tied to workload type.

The AMD part dominates heavily threaded and data-heavy tasks. Its largest margins come in integer math, where it leads by 109.9%, and in Cinebench R23 multi-core, where it is 85.4% ahead. Data compression shows a 76.7% advantage, extended instructions a 73.9% lead, and random string sorting a 59.4% margin. These are workloads that scale with core count, thread count, cache capacity, and memory bandwidth, and the AMD processor has structural advantages in all four areas.

The Intel Core Ultra X9 388H wins in single-threaded and latency-sensitive tests. It takes Cinebench R15 single-core by 1.1%, Cinebench R23 single-core by 8.5%, PassMark single-thread by 4.7%, find prime numbers by 20.7%, and physics by 1.1%. The prime number test is particularly interesting because it often rewards high per-core frequency and low latency rather than raw parallel throughput. The Intel chip also wins the duplicate PassMark single-thread and singlethread entries by the same 4.7% margin, confirming consistency in that measurement.

The remaining wins for AMD are smaller but still meaningful. Floating point math goes to AMD by 7.1%, data encryption by 15.3%, and the PassMark multithread suite by 39.9%. The overall average benchmark score reinforces this split: the AMD processor records 80762 versus 44466 for Intel, a gap that places the AMD chip at the 95th percentile of all CPUs while the Intel chip sits at the 88th percentile.

Architecture Differences

The two processors take fundamentally different design paths. The AMD Ryzen AI Max+ PRO 395 uses Zen 5 architecture on a 4 nm TSMC process, codenamed Strix Halo. The Intel Core Ultra X9 388H uses Panther Lake architecture on a 3 nm Intel process, belonging to the Core Ultra Series 3 generation.

Core and thread counts differentiate them sharply. Both have 16 cores, but the AMD chip supports 32 threads while the Intel chip supports only 16 threads. That explains why the AMD processor excels in multi-threaded benchmarks: it can process two threads per core, effectively doubling its parallel work capacity. The Intel part appears to use a configuration without Hyper-Threading or with a different thread allocation scheme.

Cache hierarchies diverge substantially. The AMD processor carries 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The Intel processor has 192 KB of L1 per core, 3 MB of L2 per core, but only 18 MB of shared L3. The AMD chip's 64 MB L3 is more than 3.5 times larger in total shared capacity, which helps in workloads that repeatedly access large data sets.

Memory subsystems also differ. Both support LPDDR5X, but the AMD chip uses a quad-channel memory bus with 256.0 GB/s of bandwidth, while the Intel chip uses a dual-channel bus with 153.6 GB/s. That bandwidth difference of roughly 1.67 times favors AMD in memory-intensive tasks like data compression and random string sorting. The AMD processor also supports ECC memory; the Intel processor does not.

PCIe connectivity goes in opposite directions. The AMD chip uses Gen 4 with 16 CPU lanes, while the Intel chip uses Gen 5 with only 4 CPU lanes. The Intel part has a newer PCIe generation but far fewer lanes, which may matter for external GPU or NVMe expansion. Integrated graphics differ as well: the AMD chip uses Radeon 8060S, the Intel chip uses Arc B390.

Power targets are notably different. The AMD chip has a TDP of 55 watts, while the Intel chip has a TDP of 25 watts. That lower power envelope for Intel likely contributes to its smaller cache and narrower memory bus, but also suggests it may fit in thinner chassis with lighter cooling requirements.

Head-to-Head Benchmarks

The Cinebench results establish the multi-core hierarchy. In Cinebench R15 multi-core, the AMD processor scores 5247 against 2955 for Intel, a 77.6% advantage. In Cinebench R23 multi-core, AMD scores 35061 against 18911, a 85.4% lead. These are the largest Cinebench deltas in the comparison and directly reflect the thread count and L3 cache differences.

Single-core Cinebench flips the result. Intel wins Cinebench R15 single-core with 309.5 versus 306, a narrow 1.1% margin. In Cinebench R23 single-core, Intel scores 2200.5 against 2012.5, a more decisive 8.5% win. The Intel part's higher per-core clock efficiency appears to overcome its lower base clock of 2.10 GHz versus 3.00 GHz for AMD, though both boost to 5.10 GHz.

PassMark integer math delivers the largest margin of the entire comparison. AMD scores 190720 against 90882, a 109.9% advantage. That more than doubles Intel's result and is a strong indicator of integer-heavy compilation, scripting, and database workloads. Floating point math is closer: AMD wins 120533 to 112550, a 7.1% margin.

Data compression and extended instructions follow the same pattern. AMD leads compression 639356 to 361763, a 76.7% gap, and extended instructions 52067 to 29943, a 73.9% gap. Random string sorting goes to AMD 70150 to 44010, a 59.4% margin. Data encryption is closer but still favors AMD: 32840 versus 28490, a 15.3% lead.

The PassMark multithread suite shows a 39.9% AMD advantage, 51502 versus 36811. The Intel chip's wins in find prime numbers (358 versus 284, a 20.7% margin) and physics (3226 versus 3189, a 1.1% margin) show that not every parallel workload favors AMD. Prime number calculation often benefits from fast integer division and per-core latency, where the Intel architecture appears stronger.

FAQ

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

A: The AMD Ryzen AI Max+ PRO 395. It leads by 77.6% in Cinebench R15 multi-core, 85.4% in Cinebench R23 multi-core, and 39.9% in PassMark multithread.

Q: Does the Intel Core Ultra X9 388H win any benchmarks?

A: Yes, it wins 6 of 15 head-to-head tests: Cinebench R15 single-core, Cinebench R23 single-core, PassMark find prime numbers, PassMark physics, and both PassMark single-thread entries.

Q: Why does the AMD processor have such a large lead in integer math?

A: The AMD chip uses 16 cores with 32 threads, 64 MB of shared L3 cache, and a quad-channel memory bus with 256.0 GB/s bandwidth. These features support parallel integer operations more effectively than the Intel chip's 16 threads, 18 MB of L3, and dual-channel 153.6 GB/s bus.

Q: What is the single-core performance difference?

A: The Intel chip leads in single-core tests. It wins Cinebench R23 single-core by 8.5% and PassMark single-thread by 4.7%, despite both processors having a 5.10 GHz boost clock.

Q: How do the memory systems compare?

A: Both support LPDDR5X, but the AMD chip uses quad-channel memory with 256.0 GB/s bandwidth, while the Intel chip uses dual-channel with 153.6 GB/s. AMD also supports ECC memory; Intel does not.

Q: Which chip has a larger cache?

A: The AMD chip has 64 MB of shared L3 cache, compared to 18 MB for Intel. However, Intel has larger per-core L1 and L2 caches: 192 KB and 3 MB per core versus 80 KB and 1 MB per core for AMD.

The Verdict

The data points to a clear division of labor. The AMD Ryzen AI Max+ PRO 395 is the choice for multi-threaded throughput, large data set manipulation, and memory-bandwidth-sensitive tasks. Its 85.4% lead in Cinebench R23 multi-core and 109.9% lead in integer math make it the stronger option for rendering, compilation, data analysis, and any workload that can use 32 threads. The 64 MB L3 cache and 256.0 GB/s memory bandwidth support this interpretation.

The Intel Core Ultra X9 388H is the better option for single-threaded responsiveness and latency-sensitive workloads. Its 8.5% win in Cinebench R23 single-core and 20.7% win in find prime numbers indicate stronger per-core efficiency. The 25 watt TDP also suggests it can sustain those single-thread results in more power-constrained designs.

The overall average benchmark score favors AMD by a wide margin, 80762 versus 44466, and the AMD chip ranks at the 95th percentile compared to 88th for Intel. Users who need maximum parallel performance should select the AMD part. Users who prioritize single-thread speed, lower power consumption, or a Gen 5 PCIe connection should consider the Intel part. The choice depends on whether the workload scales across threads or depends on per-core speed.

Specification Differences

| Specification | AMD Ryzen AI Max+ PRO 395 | Intel Core Ultra X9 388H |

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

| Cores | 16 | 16 |

| Threads | 32 | 16 |

| Base Clock | 3.00 GHz | 2.10 GHz |

| Boost Clock | 5.10 GHz | 5.10 GHz |

| TDP | 55 W | 25 W |

| Socket | AMD Socket FP11 | Intel BGA 2540 |

| Architecture | Zen 5 | Panther Lake |

| Codename | Strix Halo | Panther Lake |

| Process Node | 4 nm (TSMC) | 3 nm (Intel) |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 1 MB (per core) | 3 MB (per core) |

| L3 Cache | 64 MB (shared) | 18 MB (shared) |

| Memory Support | LPDDR5X | LPDDR5X |

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

| Memory Bandwidth | 256.0 GB/s | 153.6 GB/s |

| ECC Memory | Yes | No |

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

| Integrated Graphics | Radeon 8060S | Arc B390 |

| Release Date | 2025-01-05 | 2026-01-04 |

| Production Status | Active | Active |