AMD Ryzen AI 5 435 vs Intel Core Ultra 5 338H Comparison

FAQ

Q: Which processor delivers the higher multi-core performance in Cinebench R23?

A: The Intel Core Ultra 5 338H is significantly ahead in Cinebench R23 multi-core with a score of 16331 versus the AMD Ryzen AI 5 435's 11333, a delta of 30.6% in Intel's favor.

Q: How do the two chips compare in single-threaded workloads?

A: The Intel part leads in single-thread performance as well. In Cinebench R23 single-core, Intel scores 2044 against AMD's 1816, an 11.2% advantage. In PassMark single-thread, Intel scores 4180 versus AMD's 3734, a 10.7% gap.

Q: Are there any benchmark categories where the AMD Ryzen AI 5 435 wins?

A: No. Across all 15 recorded head-to-head benchmark comparisons, the Intel Core Ultra 5 338H wins every single test. The AMD chip does not secure a single victory in the database.

Q: What is the difference in the number of cores and threads?

A: The AMD Ryzen AI 5 435 has 6 cores and 12 threads, while the Intel Core Ultra 5 338H has 12 cores and 12 threads. This means Intel has double the core count but no additional threads beyond the core count.

Q: How does the average benchmark score compare between the two processors?

A: The Intel Core Ultra 5 338H has an average benchmark score of 33989, placing it in the 84th percentile of all CPUs. The AMD Ryzen AI 5 435 has an average score of 28128, placing it in the 80th percentile.

Q: Which chip has a higher boost clock speed?

A: The Intel Core Ultra 5 338H has a boost clock of 4.70 GHz, which is higher than the AMD Ryzen AI 5 435's boost clock of 4.50 GHz.

Architecture Differences

The two processors come from different design philosophies and manufacturing processes. The AMD Ryzen AI 5 435 uses the Zen 5 architecture under the codename Gorgon Point, built on a 4 nm process at TSMC. The Intel Core Ultra 5 338H uses the Panther Lake architecture, built on a 3 nm process at Intel's own foundry.

Core configuration differs substantially. The AMD chip has 6 cores and 12 threads, indicating simultaneous multithreading. The Intel chip has 12 cores and 12 threads, indicating no hyperthreading but double the physical core count. This core count disparity explains much of the multi-threaded performance gap.

Cache hierarchies are distinct. The AMD processor allocates 80 KB of L1 cache per core, 1 MB of L2 per core, and a total of 4 MB of L3 cache. The Intel processor allocates 192 KB of L1 per core, 2.5 MB of L2 per core, and a shared 18 MB of L3 cache. The larger L3 cache on the Intel part is a significant architectural advantage for workloads that benefit from shared data access.

Memory support differs. The AMD chip supports both DDR5 and LPDDR5X memory, while the Intel chip supports only LPDDR5X. Both use a dual-channel memory bus, but the Intel part has a higher recorded memory bandwidth of 136.5 GB/s compared to AMD's 89.6 GB/s. The AMD processor supports ECC memory, while the Intel processor does not.

PCIe capabilities diverge. The AMD Ryzen AI 5 435 provides Gen 4 with 14 lanes (CPU only), while the Intel Core Ultra 5 338H provides Gen 5 with 4 lanes (CPU only). The newer PCIe standard on the Intel chip offers higher per-lane bandwidth, though the lane count is lower.

Integrated graphics differ as well. The AMD chip uses the Radeon 840M, while the Intel chip uses the Arc B370. Socket types are different: AMD uses Socket FP8, and Intel uses BGA 2540. The TDP ratings are close, with AMD at 28 watts and Intel at 25 watts.

Head-to-Head Benchmarks

The benchmark results are unambiguous. The Intel Core Ultra 5 338H wins all 15 recorded comparisons, with margins ranging from modest to overwhelming.

The largest gap appears in PassMark find prime numbers. Intel scores 304 against AMD's 58, a delta of 80.9% in Intel's favor. This test is highly sensitive to integer throughput and cache behavior, and the Intel part's larger L3 cache and higher core count dominate here.

PassMark physics shows a 60.1% advantage for Intel, with scores of 2697 versus 1075. This workload scales heavily with core count, and Intel's 12 physical cores provide a decisive edge over AMD's 6.

PassMark floating point math shows a 51.7% lead for Intel, scoring 84067 against AMD's 40627. The raw throughput advantage in FP operations is nearly double. PassMark data encryption shows a 48% gap, with Intel at 21367 and AMD at 11110.

In Cinebench R15 multi-core, Intel scores 2504 versus AMD's 1686, a 32.7% advantage. Cinebench R23 multi-core shows a similar 30.6% gap, with Intel at 16331 and AMD at 11333. PassMark multi-thread shows a 33.8% advantage for Intel, scoring 28717 against 19000.

PassMark extended instructions shows a 32.2% lead for Intel, with 23906 versus 16197. PassMark random string sorting shows a 27% gap, with Intel at 34082 and AMD at 24891. PassMark data compression shows an 18.5% advantage for Intel, scoring 276539 against 225374.

Single-thread results are closer but still favor Intel. Cinebench R15 single-core shows a 14.8% gap, with Intel at 305 versus AMD's 260. Cinebench R23 single-core shows an 11.2% gap, with Intel at 2044 versus 1816. PassMark single-thread shows a 10.7% gap, with Intel at 4180 versus 3734.

The narrowest margin is in PassMark integer math, where Intel scores 64934 against AMD's 61026, a 6% advantage. Even in this close contest, the Intel chip wins.

The Verdict

The data supports a clear conclusion: the Intel Core Ultra 5 338H outperforms the AMD Ryzen AI 5 435 in every recorded benchmark. The Intel chip's average benchmark score of 33989 places it in the 84th percentile of all CPUs, while the AMD chip's 28128 places it in the 80th percentile. The Intel part also sits among stronger rivals in the database, with its nearest competitors including the Intel Core Ultra 7 165H at 34083 and the AMD EPYC 4244P at 34220.

For users prioritizing raw performance across multi-threaded workloads, the Intel part is the obvious choice. Its 12 cores, larger cache, and higher memory bandwidth deliver substantial advantages in rendering, physics simulation, encryption, and floating-point math. The AMD chip does not offer any performance advantage in the recorded data.

However, the AMD Ryzen AI 5 435 is not without merit. Its 6-core configuration with 12 threads, combined with a 28-watt TDP, may appeal to systems where power draw is a consideration. The AMD part supports ECC memory, which the Intel part does not, and it uses the Zen 5 architecture with a 4 nm TSMC process.

The choice depends on the use case. For maximum benchmark performance, the Intel Core Ultra 5 338H is the clear winner. For specific requirements such as ECC memory support or a preference for AMD's platform, the Ryzen AI 5 435 remains a viable option, albeit with lower measured performance across the board.

Specification Differences

| Specification | AMD Ryzen AI 5 435 | Intel Core Ultra 5 338H |

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

| Cores | 6 | 12 |

| Threads | 12 | 12 |

| Base Clock | 2.00 GHz | 1.90 GHz |

| Boost Clock | 4.50 GHz | 4.70 GHz |

| TDP | 28 W | 25 W |

| Socket | AMD Socket FP8 | Intel BGA 2540 |

| Architecture | Zen 5 | Panther Lake |

| Codename | Gorgon Point | 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) | 2.5 MB (per core) |

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

| Memory Support | DDR5, LPDDR5X | LPDDR5X |

| Memory Bandwidth | 89.6 GB/s | 136.5 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 14 Lanes (CPU only) | Gen 5, 4 Lanes (CPU only) |

| Integrated Graphics | Radeon 840M | Arc B370 |

Where Each One Wins

The Intel Core Ultra 5 338H wins in every measured performance category. The data shows no benchmark where the AMD Ryzen AI 5 435 achieves a higher score. This means the Intel part is the superior choice for all workloads recorded in the database, including multi-threaded rendering, single-threaded responsiveness, encryption, compression, physics, floating-point math, integer math, and data sorting.

The AMD Ryzen AI 5 435 does not win any performance test, but it offers distinct platform features. The support for ECC memory is a concrete advantage for systems that require error-correcting memory. The AMD chip also supports both DDR5 and LPDDR5X memory types, whereas the Intel chip only supports LPDDR5X. The AMD part's wider PCIe Gen 4 lane count of 14 may benefit configurations that need more direct CPU-attached lanes, though the Intel part's Gen 5 standard offers higher per-lane speed.

The Intel chip's higher memory bandwidth of 136.5 GB/s versus AMD's 89.6 GB/s is a significant advantage for memory-intensive tasks. The larger L3 cache of 18 MB versus 4 MB further favors the Intel part in workloads with repeated data access patterns.

In practical terms, the Intel Core Ultra 5 338H is the pick for users who want the highest recorded scores in the database. The AMD Ryzen AI 5 435 is the pick for users who need ECC memory support or who prefer the AMD platform with its specific socket and memory compatibility. The performance gap is decisive, but the feature differences provide context for system builders with specific requirements beyond raw benchmark scores.