AMD Ryzen AI 9 HX 375 vs Intel Core Ultra 9 285H Comparison

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 9 285H has 16 cores and 16 threads, while the AMD Ryzen AI 9 HX 375 has 12 cores and 24 threads. The AMD part uses simultaneous multithreading to reach 24 threads, whereas the Intel part does not.

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

A: The AMD Ryzen AI 9 HX 375 scores 21812 in Cinebench R23 multi-core, which is 5% ahead of the Intel Core Ultra 9 285H's 20781.5. This is one of the AMD chip's clearer wins in rendering workloads.

Q: Which processor shows a larger advantage in single-core tests?

A: The Intel Core Ultra 9 285H leads in every recorded single-core benchmark. Its Cinebench R23 single-core score of 2129.5 is 6.6% higher than the AMD chip's 1988, and its PassMark single-thread score of 4415 is 12.4% higher than 3867.

Q: What is the difference in PassMark integer math performance?

A: The AMD Ryzen AI 9 HX 375 posts 121754 in PassMark integer math, which is 41.7% higher than the Intel Core Ultra 9 285H's 85922. This is the largest percentage win for AMD in the head-to-head data.

Q: Which chip has a higher memory bandwidth rating?

A: The Intel Core Ultra 9 285H is rated at 102.4 GB/s, while the AMD Ryzen AI 9 HX 375 is rated at 89.6 GB/s. Both support DDR5 and LPDDR5X memory over a dual-channel bus.

Q: How do the overall benchmark averages compare?

A: The AMD Ryzen AI 9 HX 375 has an average benchmark score of 46030 and sits in the 89th percentile of all CPUs. The Intel Core Ultra 9 285H has an average of 38312 and sits in the 86th percentile.

Architecture Differences

The AMD Ryzen AI 9 HX 375 uses the Zen 5 architecture on the Strix Point codename, built on a 4 nm process at TSMC. The Intel Core Ultra 9 285H uses the Arrow Lake architecture on the Arrow Lake-H codename, built on a 3 nm process, also at TSMC. The AMD part belongs to the Ryzen AI 300 generation, which combines Zen 5 and Zen 5c cores, while the Intel part belongs to the Core Ultra Series 2 generation.

Core organization differs substantially. The AMD chip has 12 cores and 24 threads, with a base clock of 2.00 GHz and a boost clock of 5.10 GHz. The Intel chip has 16 cores and 16 threads, with a base clock of 2.90 GHz and a boost clock of 5.40 GHz. The absence of hyperthreading on the Intel part means its thread count equals its core count, while AMD's thread count doubles its core count.

Cache hierarchies are also distinct. The AMD processor provides 80 KB of L1 per core, 1 MB of L2 per core, and 16 MB of L3 cache. The Intel processor provides 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3 cache. While Intel has a larger cache pool per core and a larger L3 total, AMD's L3 is arranged as a single 16 MB block rather than a shared pool designation.

The process nodes differ: AMD uses 4 nm, Intel uses 3 nm. Die size is known for AMD at 233 mm², while Intel's die size is not recorded in the database. Socket types are incompatible: AMD uses AMD Socket FP8, Intel uses Intel BGA 2049. The AMD chip has a TDP of 28 watts, while the Intel chip has a TDP of 45 watts. PCIe support diverges as well: AMD offers Gen 4 with 16 CPU lanes, while Intel offers Gen 5 with 8 CPU lanes.

Integrated graphics differ by vendor and model: AMD pairs the chip with Radeon 890M, Intel pairs it with Arc Graphics 140T. Memory support is the same in type (DDR5, LPDDR5X) and bus width (dual-channel), but bandwidth is higher on Intel at 102.4 GB/s versus 89.6 GB/s. ECC memory support is present on the Intel chip but not on the AMD chip. Both chips are unlocked in the sense of having a locked multiplier, and both are in active production. The AMD part was released on 2024-06-30, while the Intel part was released on 2025-01-12.

Head-to-Head Benchmarks

The AMD Ryzen AI 9 HX 375 wins 6 of the 17 recorded head-to-head comparisons, while the Intel Core Ultra 9 285H wins 11. The wins are not evenly distributed across workload types; they cluster by instruction pattern and thread scaling.

AMD's largest victory is in PassMark integer math, where it scores 121754 against Intel's 85922, a 41.7% advantage. Data compression also favors AMD heavily: 404918 versus 335859, a 20.6% lead. In extended instructions, AMD scores 29269 versus 26794, a 9.2% margin. Random string sorting goes to AMD at 44552 versus 40931, an 8.8% lead. In Cinebench R23 multi-core, AMD leads 21812 to 20781.5, a 5% margin, and in Cinebench R15 multi-core, AMD leads 3334 to 3177.5, a 4.9% margin.

Intel's wins are spread across single-core, floating point, cryptography, and physics workloads. Its most striking victory is in PassMark find prime numbers, where it scores 330 versus AMD's 122, a 63% advantage. Floating point math also goes strongly to Intel: 109190 versus 75153, a 31.2% lead. Physics performance favors Intel at 2513 versus 1819, a 27.6% margin. Data encryption goes to Intel at 26140 versus 20802, a 20.4% lead. Single-thread scores favor Intel at 4415 versus 3867, a 12.4% margin. In Cinebench R23 single-core, Intel leads 2129.5 to 1988, a 6.6% edge. GeekBench multi-core goes to Intel at 14743 versus 13957, a 5.3% margin. GeekBench single-core goes to Intel at 2178 versus 2084, a 4.3% margin. Cinebench R15 single-core goes to Intel at 313 versus 301, a 3.8% margin. PassMark multithread goes to Intel at 34171 versus 32916, a 3.7% margin.

The pattern is clear: AMD dominates integer-heavy, compression, and multi-core Cinebench tasks, while Intel dominates single-core, floating point, prime number finding, encryption, and physics simulations. The two chips trade blows in a way that suggests workload-specific suitability rather than a universal winner.

Specification Differences

The table below lists only the fields where the two processors differ.

| Field | AMD Ryzen AI 9 HX 375 | Intel Core Ultra 9 285H |

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

| Cores | 12 | 16 |

| Threads | 24 | 16 |

| Base Clock | 2.00 GHz | 2.90 GHz |

| Boost Clock | 5.10 GHz | 5.40 GHz |

| TDP | 28 W | 45 W |

| Socket | AMD Socket FP8 | Intel BGA 2049 |

| Architecture | Zen 5 | Arrow Lake |

| Codename | Strix Point | Arrow Lake-H |

| Generation | Ryzen AI 300 (Zen 5 / Zen 5c) | Ultra 9 (Arrow Lake-H) |

| Process Node | 4 nm | 3 nm |

| Die Size | 233 mm² | Not recorded |

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

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

| L3 Cache | 16 MB | 24 MB (shared) |

| Memory Bandwidth | 89.6 GB/s | 102.4 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 4, 16 Lanes (CPU only) | Gen 5, 8 Lanes (CPU only) |

| Integrated Graphics | Radeon 890M | Arc Graphics 140T |

| Release Date | 2024-06-30 | 2025-01-12 |

| Launch MSRP | Not recorded | $651 |

| Part Number | 100-000001682 | SRQAL |

The Verdict

The data indicates that the AMD Ryzen AI 9 HX 375 is the stronger choice for multi-threaded integer workloads and Cinebench rendering. Its 5% lead in Cinebench R23 multi-core and its 41.7% lead in integer math suggest that software leveraging parallel integer operations will run noticeably faster on the AMD part. The 20.6% advantage in data compression and the 9.2% lead in extended instructions reinforce this profile. The AMD chip also holds a higher average benchmark score (46030 versus 38312) and a higher percentile ranking (89th versus 86th), despite the Intel part having more cores.

The Intel Core Ultra 9 285H is the better option for single-core performance and floating point math. The 12.4% lead in PassMark single-thread, the 6.6% lead in Cinebench R23 single-core, and the 31.2% lead in floating point math place it ahead in tasks that depend on per-core speed or vector arithmetic. The 63% advantage in find prime numbers and the 20.4% advantage in data encryption further demonstrate Intel's strength in specialized compute kernels. The 27.6% lead in physics simulations also points to better performance in that specific workload.

For synthetic multi-core benchmarks beyond Cinebench, Intel holds the edge in GeekBench multi-core by 5.3% and in PassMark multithread by 3.7%. This suggests that the thread advantage of the AMD chip (24 threads versus 16) does not automatically translate to wins in all multi-threaded tests. The AMD chip's higher thread count helps in Cinebench and integer math, but Intel's higher core count with faster clocks wins in GeekBench and PassMark multithread.

The recorded data shows no single dominant processor. The AMD Ryzen AI 9 HX 375 delivers superior integer throughput and rendering performance, while the Intel Core Ultra 9 285H delivers superior single-core speed, floating point throughput, and cryptographic performance. The choice between them depends on the workload mix. For compression, integer processing, and Cinebench-style rendering, the AMD chip is the data-supported pick. For single-thread responsiveness, physics, encryption, and floating point math, the Intel chip is the data-supported pick. The Intel part also carries a higher TDP (45 W versus 28 W), which may factor into system-level thermal and power planning, although the database does not record measured power consumption.