AMD Ryzen AI 5 PRO 435 vs Intel Core Ultra 5 235H Comparison

The AMD Ryzen AI 5 PRO 435 and Intel Core Ultra 5 235H are both 28-watt mobile processors aimed at thin-and-light laptops, but the benchmark data reveals a decisive performance gap. Across every single head-to-head test in the database, the Intel Core Ultra 5 235H comes out ahead, often by a wide margin. The AMD chip’s only consolation is its overall average benchmark score, which is slightly higher, though this is a statistical quirk rather than a sign of real-world superiority.

Head-to-Head Benchmarks

The most lopsided result is in the `passmark_find_prime_numbers` test, where the Intel Core Ultra 5 235H scores 239 compared to the AMD Ryzen AI 5 PRO 435’s 57. That is a 76.2% deficit for the AMD part, a crushing blow in a workload that is highly sensitive to raw integer throughput and processor scheduling. The gap in floating-point math is nearly as severe: Intel’s score of 93509 dwarfs AMD’s 41114, a 56% difference. This suggests the Intel chip has a major advantage in scientific computing, simulations, and any task that relies heavily on FPU execution.

The encryption test tells a similar story. Intel’s 23121 score is more than double AMD’s 11267, a 51.3% lead. This is a significant finding for anyone handling sensitive data or working with virtual private networks, as encryption performance directly impacts throughput. The physics test, which simulates rigid body dynamics, also favors Intel heavily: 1985 versus 995, a 49.9% margin. While not a direct gaming benchmark, this hints at better performance in physics-based game engines.

Multi-threaded performance is the most important overall metric for productivity, and here Intel wins decisively. The Core Ultra 5 235H posts a `passmark_multithread` score of 30091, while the Ryzen AI 5 PRO 435 manages only 19091, a 36.6% gap. This aligns with the core count disparity: Intel has 14 cores versus AMD’s 6. The extended instructions benchmark, which tests modern SIMD and cryptographic instruction sets, also goes to Intel by 28.4% (23354 vs 16724). The `passmark_random_string_sorting` test, a proxy for database and data-processing workloads, shows Intel ahead by 31.1% (36208 vs 24936).

Even in single-threaded performance, where AMD’s Zen 5 architecture is typically strong, Intel wins. The `passmark_single_thread` score is 4359 for Intel versus 3757 for AMD, a 13.8% lead. This is crucial because single-thread performance dictates responsiveness in everyday tasks and performance in lightly-threaded applications like web browsers and office suites. The integer math test shows the smallest gap, with Intel ahead by 18% (74247 vs 60879), but it is still a clear loss for AMD.

The only place the AMD chip looks competitive is in aggregate. Its `avgBenchmarkScore` is 37762, compared to Intel’s 37522. This is likely due to the different test suites each chip was run through; the Intel part has additional Cinebench results, which are not present for the AMD. Looking at the shared PassMark tests alone, the Intel Core Ultra 5 235H wins all 11, with a combined margin that is substantial.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen AI 5 PRO 435 is built on the Zen 5 architecture, codenamed Gorgon Point, and manufactured on a 4nm process at TSMC. It has 6 cores and 12 threads, with a base clock of 2.00 GHz and a boost clock of 4.50 GHz. The Intel Core Ultra 5 235H, in contrast, uses the Arrow Lake architecture (Arrow Lake-H), built on a more advanced 3nm TSMC node. It features 14 cores and 14 threads, with a higher base clock of 2.40 GHz and a boost clock of 5.00 GHz.

The cache layouts highlight a major difference. AMD provides a relatively small L3 cache of 4 MB total, while Intel offers a much larger 18 MB shared L3 cache. This 4.5x difference in cache capacity is a major factor in the Intel chip’s superior performance in data-heavy workloads, as it can hold more working data closer to the cores. The L2 cache is also bigger per core on Intel: 3 MB per core versus AMD’s 1 MB per core.

Memory bandwidth also favors Intel. The Core Ultra 5 235H supports a memory bandwidth of 102.4 GB/s, while the Ryzen AI 5 PRO 435 tops out at 89.6 GB/s. Both support DDR5 and LPDDR5X memory in a dual-channel configuration, but Intel’s higher bandwidth gives it a further edge in memory-bound tasks. Another key divergence is ECC memory support: the AMD chip supports ECC, which is a rarity in mobile parts and a boon for data integrity in professional workflows. The Intel chip does not.

PCIe connectivity is another differentiator. Intel offers PCIe Gen 5 with 8 lanes, while AMD provides PCIe Gen 4 with 14 lanes. The Gen 5 interface has higher per-lane bandwidth, which can benefit fast NVMe SSDs and external GPUs, but AMD’s higher lane count allows for more simultaneous devices at the older standard. The integrated graphics also differ: AMD uses a Radeon 840M, while Intel utilizes Arc Graphics 140T.

Where Each One Wins

The Intel Core Ultra 5 235H wins in every benchmark category recorded in the head-to-head data. This makes it the clear choice for performance-oriented users. Its massive lead in floating-point math and prime number finding makes it better suited for engineering simulations, financial modeling, and academic research. The 51.3% advantage in encryption makes it a better pick for security professionals who regularly encrypt large volumes of data. The 36.6% lead in multi-threaded performance means it will handle video editing, 3D rendering, and software compilation noticeably faster.

The AMD Ryzen AI 5 PRO 435 does not win any head-to-head benchmark. However, it is not without merit. Its support for ECC memory is a unique feature that Intel lacks, making it a more reliable choice for workstations where data corruption is unacceptable. Its lower core count and older process node might also imply a simpler power profile, though the data does not provide power consumption figures. The AMD chip’s average benchmark score is marginally higher than Intel’s, but this is an artifact of the differing test suites and not a meaningful performance advantage.

For gaming, the data is less clear. The physics test, which Intel wins by 49.9%, is relevant, but the actual graphics performance depends on the integrated GPU and the system’s memory configuration. Neither part is a gaming powerhouse, but the Intel chip’s raw CPU advantage should translate to better frame rates in CPU-bound scenarios.

The Verdict

The data is unambiguous: the Intel Core Ultra 5 235H is the superior processor. It wins every single head-to-head benchmark, with margins ranging from 13.8% in single-threaded tasks to 76.2% in prime number calculations. The average benchmark score slightly favors AMD, but this is misleading due to different test sets. If raw performance is the priority, the Intel chip is the only rational choice.

The Ryzen AI 5 PRO 435 is only the better pick for a specific niche: users who require ECC memory support. This is a hard requirement for some scientific, financial, and server-adjacent workloads, and the Intel part simply cannot do it. If data integrity is more important than raw speed, the AMD chip is the one to get. For everyone else, the Intel Core Ultra 5 235H offers a massive performance uplift that justifies its selection.

The Intel chip’s 5.4% lead in single-threaded performance and 57.7% lead in multi-threaded performance (calculated from the respective scores) means it will feel snappier in daily use and complete heavy workloads in a fraction of the time. The larger L3 cache and higher memory bandwidth also give it more headroom for future applications that are increasingly memory-hungry.

FAQ

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

A: The Intel Core Ultra 5 235H is significantly faster, scoring 30091 in `passmark_multithread` compared to 19091 for the AMD Ryzen AI 5 PRO 435, a 36.6% advantage.

Q: Does the AMD chip win any benchmark?

A: No. The head-to-head data shows the Intel Core Ultra 5 235H winning all 11 tests, with the AMD chip recording 0 wins.

Q: How do the single-threaded scores compare?

A: The Intel Core Ultra 5 235H scores 4359 in `passmark_single_thread`, which is 13.8% higher than the AMD Ryzen AI 5 PRO 435’s 3757.

Q: What is the difference in L3 cache size?

A: The Intel Core Ultra 5 235H has an 18 MB shared L3 cache, while the AMD Ryzen AI 5 PRO 435 has only 4 MB of L3 cache.

Q: Does either processor support ECC memory?

A: Yes, the AMD Ryzen AI 5 PRO 435 supports ECC memory, while the Intel Core Ultra 5 235H does not.

Q: Which chip has a higher boost clock?

A: The Intel Core Ultra 5 235H has a boost clock of 5.00 GHz, compared to the AMD Ryzen AI 5 PRO 435’s 4.50 GHz.

Specification Differences

| Specification | AMD Ryzen AI 5 PRO 435 | Intel Core Ultra 5 235H |

| :--- | :--- | :--- |

| Architecture | Zen 5 | Arrow Lake |

| Process Node | 4 nm | 3 nm |

| Cores | 6 | 14 |

| Threads | 12 | 14 |

| Base Clock | 2.00 GHz | 2.40 GHz |

| Boost Clock | 4.50 GHz | 5.00 GHz |

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

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

| L3 Cache | 4 MB | 18 MB (shared) |

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

| ECC Memory | Yes | No |

| PCIe | Gen 4, 14 Lanes | Gen 5, 8 Lanes |

| Integrated Graphics | Radeon 840M | Arc Graphics 140T |

| Socket | AMD Socket FP8 | Intel BGA 2049 |