AMD Ryzen AI Max+ 388 vs Intel Core Ultra 9 285H Comparison

Head-to-Head Benchmarks

The head-to-head data between the AMD Ryzen AI Max+ 388 and the Intel Core Ultra 9 285H shows a clear split, with Intel taking 11 of 15 benchmark comparisons. The most decisive Intel victories come in compute-heavy workloads. In Cinebench R23 multi-core, Intel scores 20,781.5 against AMD's 18,759, a 9.7% advantage. The single-core gap is smaller but consistent: Intel leads Cinebench R23 single-core by 8% (2,129.5 vs. 1,960) and Cinebench R15 single-core by 4.8% (313 vs. 298).

The largest Intel wins appear in specialized math workloads. PassMark floating point math shows Intel at 109,190 versus AMD's 72,722, a 33.4% margin. Even more extreme is the prime number finding test, where Intel scores 330 compared to AMD's 145, a 56.1% deficit for AMD. PassMark physics also favors Intel heavily: 2,513 vs. 1,843, a 26.7% gap. Data encryption goes Intel's way by 23.1% (26,140 vs. 20,092).

AMD's four wins are concentrated in integer and data-oriented tasks. The biggest AMD victory is PassMark integer math, where it scores 109,588 against Intel's 85,922, a 27.5% lead. Data compression shows AMD at 400,887 versus Intel's 335,859, a 19.4% advantage. Extended instructions favor AMD by 22.1% (32,719 vs. 26,794). Random string sorting is closer, with AMD leading 43,196 to 40,931, a 5.5% margin.

The multithreaded PassMark score is nearly a tie: Intel edges AMD 34,171 to 33,486, just 2% apart. This contrast with the larger Cinebench R23 multi-core gap suggests the two processors handle thread scheduling and sustained loads differently. The single-thread PassMark score also stays close, with Intel ahead 4,415 to 4,185, a 5.2% difference. The overall picture: Intel dominates floating-point, physics, and prime-number workloads, while AMD counterattacks in integer math, compression, and extended instruction sets.

Where Each One Wins

The benchmark splits point to distinct use cases. Intel's 33.4% lead in floating-point math and 26.7% lead in physics suggest strong performance in scientific simulation, rendering, and any workload relying on FPU throughput. The 56.1% margin in prime number finding indicates superior integer loop efficiency and branch handling, which can benefit cryptography and hashing tasks. Intel's 23.1% encryption win reinforces that narrative. For users running Cinebench-class rendering or physics engines, the Core Ultra 9 285H delivers measurably higher scores.

AMD's wins define a different profile. The 27.5% integer math advantage and 19.4% compression lead point to database operations, file archiving, and general productivity where integer throughput dominates. The 22.1% extended instructions margin suggests AMD's Zen 5 architecture handles SIMD-heavy or specialized instruction sequences more efficiently. Random string sorting, a proxy for list management and sorting algorithms, also goes AMD's way by 5.5%. This combination suits data analytics pipelines, compression utilities, and certain compiler workloads.

The near-tie in PassMark multithread (2% difference) indicates that for broadly parallel, mixed workloads, neither chip runs away. The Cinebench R23 multi-core gap of 9.7% for Intel, however, shows that sustained all-core rendering leans Intel. AMD's 8-core, 16-thread configuration matches Intel's 16-core, 16-thread setup in threads, but Intel's core layout and higher boost clock of 5.40 GHz versus 5.00 GHz likely explain the rendering advantage. AMD counters with a higher base clock of 3.60 GHz versus 2.90 GHz, which helps in bursty integer tasks.

The Verdict

The recorded data shows a processor split by workload type. The Intel Core Ultra 9 285H is the choice for floating-point-intensive applications, physics simulation, and single-threaded responsiveness. Its 8% lead in Cinebench R23 single-core and 5.2% lead in PassMark single-thread indicate faster per-thread execution for lightly threaded software. The 33.4% floating-point math advantage and 26.7% physics lead make it the stronger option for engineering tools and 3D rendering workloads. The 23.1% encryption margin also favors Intel for security-related tasks.

The AMD Ryzen AI Max+ 388 wins the integer-heavy and data-processing categories. Its 27.5% integer math lead and 19.4% compression advantage make it the better fit for data compression, file management, and integer-crunching applications. The 22.1% extended instructions lead indicates strong SIMD and specialized instruction efficiency. For users prioritizing database work, archiving, or code compilation, AMD's profile is more favorable.

The overall average benchmark score tells a different story: AMD's average is 49,796 versus Intel's 38,312, a significant gap. However, this average includes PassMark tests where AMD wins big (compression, integer math) and Intel wins big (floating point, physics), so the average skews AMD despite Intel winning more individual tests. AMD's percentile rank among all CPUs is 90 versus Intel's 86, confirming that AMD sits slightly higher in the overall distribution. The nearest rivals data shows AMD at parity with Intel Core 9 273PE and Ryzen 9 7900, while Intel sits close to Core 9 270H and Core i5-13600HX. The verdict depends on workload: Intel for FPU-heavy and single-threaded tasks, AMD for integer and data-centric tasks.

FAQ

Q: Which processor wins more head-to-head benchmarks?

A: The Intel Core Ultra 9 285H wins 11 of 15 head-to-head comparisons, while the AMD Ryzen AI Max+ 388 wins 4.

Q: What is the largest performance gap in either direction?

A: The largest gap is in PassMark find prime numbers, where Intel leads by 56.1% (330 vs. 145). The largest AMD lead is 27.5% in PassMark integer math (109,588 vs. 85,922).

Q: How do the two compare in multi-threaded rendering?

A: Intel leads Cinebench R23 multi-core by 9.7% (20,781.5 vs. 18,759) and Cinebench R15 multi-core by 9.6% (3,177.5 vs. 2,872). PassMark multithread is close, with Intel ahead by 2%.

Q: Which chip has the higher single-core score?

A: Intel leads in every single-core test: Cinebench R23 single-core by 8% (2,129.5 vs. 1,960), Cinebench R15 single-core by 4.8% (313 vs. 298), and PassMark single-thread by 5.2% (4,415 vs. 4,185).

Q: Does AMD win any memory-bandwidth-related tests?

A: The benchmark data shows AMD wins data compression by 19.4% and random string sorting by 5.5%, which can reflect memory throughput. AMD's memory bandwidth is listed at 256.0 GB/s versus Intel's 102.4 GB/s.

Q: What is the difference in overall CPU percentile ranking?

A: AMD ranks at the 90th percentile among all CPUs, while Intel ranks at the 86th percentile. AMD's average benchmark score is 49,796 versus Intel's 38,312.

Architecture Differences

The two processors use fundamentally different architectures. AMD's Ryzen AI Max+ 388 is built on Zen 5 with the Strix Halo codename, fabricated on a 4 nm process by TSMC. Intel's Core Ultra 9 285H uses Arrow Lake with the Arrow Lake-H codename, on a 3 nm process, also from TSMC. The process node difference is small but measurable.

Core counts differ significantly: AMD has 8 cores and 16 threads, while Intel has 16 cores and 16 threads. Intel's 16 cores all map to 16 threads, meaning no hyperthreading, while AMD's 8 cores each support 2 threads. This explains why Intel can win multi-core rendering despite identical thread counts: more physical cores can improve scheduling and cache locality.

Cache hierarchies differ. AMD provides 80 KB of L1 per core, 1 MB of L2 per core, and 32 MB of shared L3. Intel provides 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3. Intel's larger per-core L1 and L2 caches likely contribute to its single-thread and floating-point advantages, while AMD's larger shared L3 (32 MB vs. 24 MB) may help in data-heavy integer workloads.

Memory architecture diverges sharply. AMD uses LPDDR5X with a quad-channel bus and 256.0 GB/s bandwidth. Intel supports both DDR5 and LPDDR5X with a dual-channel bus and 102.4 GB/s bandwidth. AMD's 2.5x memory bandwidth advantage correlates with its compression and integer math wins. Both support ECC memory.

PCIe generations differ: AMD uses Gen 4 with 16 CPU lanes, while Intel uses Gen 5 with 8 CPU lanes. Intel's newer PCIe standard offers higher per-lane bandwidth, but AMD has more lanes. Integrated graphics also differ: AMD uses Radeon 8060S, Intel uses Arc Graphics 140T. Both are mobile processors, with AMD on Socket FP11 and Intel on BGA 2049.

Specification Differences

| Specification | AMD Ryzen AI Max+ 388 | Intel Core Ultra 9 285H |

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

| Cores | 8 | 16 |

| Threads | 16 | 16 |

| Base clock | 3.60 GHz | 2.90 GHz |

| Boost clock | 5.00 GHz | 5.40 GHz |

| TDP | 55 W | 45 W |

| Socket | AMD Socket FP11 | Intel BGA 2049 |

| Architecture | Zen 5 | Arrow Lake |

| Codename | Strix Halo | Arrow Lake-H |

| Process node | 4 nm | 3 nm |

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

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

| L3 cache | 32 MB (shared) | 24 MB (shared) |

| Memory support | LPDDR5X | DDR5, LPDDR5X |

| Memory bus | Quad-channel | Dual-channel |

| Memory bandwidth | 256.0 GB/s | 102.4 GB/s |

| PCIe | Gen 4, 16 lanes | Gen 5, 8 lanes |

| Integrated graphics | Radeon 8060S | Arc Graphics 140T |

| Release date | 2026-01-05 | 2025-01-12 |

| Launch MSRP | None listed | $651 |

| Part number | 100-000001980 | SRQAL |

The TDP difference is notable: AMD runs at 55 W versus Intel's 45 W, yet Intel still wins most benchmarks. This suggests Intel's 3 nm process and larger cache configuration deliver more performance per watt in many tests. AMD's higher TDP and quad-channel memory indicate a design aimed at bandwidth-hungry workloads, which the data confirms through compression and integer wins. Intel's higher boost clock of 5.40 GHz versus 5.00 GHz aligns with its single-thread victories. The release dates show Intel launched earlier in January 2025, with AMD following in January 2026, a year apart.