AMD Ryzen 5 7400 vs Intel Core Ultra 7 366H Comparison

The AMD Ryzen 5 7400 and the Intel Core Ultra 7 366H represent two fundamentally different approaches to processor design, with the former built as a desktop part for the AM5 platform and the latter as a mobile processor for thin-and-light laptops. The benchmark data reveals a clear performance hierarchy between the two, with the Intel chip securing an 11-0 sweep across all head-to-head tests, yet the AMD processor holds its own in specific workload categories and platform features. This analysis breaks down where each chip excels, the architectural underpinnings of their performance, and the practical implications for potential users.

Where Each One Wins

The Intel Core Ultra 7 366H wins every single benchmark comparison in the head-to-head data, making it the outright performance leader in all measured categories. The most decisive victories come in compute-heavy tasks: floating-point math shows a 60.6% advantage for Intel, physics simulation shows a 60.1% lead, and prime number finding shows a massive 75.8% gap. These results indicate that the Intel chip is dramatically stronger in scientific computing, simulation, and mathematical workloads that rely heavily on parallel floating-point execution. The Intel part also dominates in data encryption with a 42.5% lead, suggesting superior cryptographic throughput for security-related tasks.

The AMD Ryzen 5 7400, despite losing every head-to-head contest, still holds relevance through its platform positioning. As a desktop processor on the AM5 socket with an unlocked multiplier, it offers upgradeability and overclocking potential that the mobile Intel chip cannot match. The AMD part also supports ECC memory, a feature absent from the Intel processor, making it suitable for error-sensitive workloads like data servers or workstations. While the raw benchmark scores favor Intel across the board, the AMD chip’s 88th percentile ranking versus all CPUs (compared to Intel’s 87th) shows that it remains a competitive desktop option despite the mobile chip’s superior scores in these specific tests.

Architecture Differences

The architectural gap between these two processors is substantial and explains the performance disparity. The AMD Ryzen 5 7400 uses the Zen 4 architecture on a 5 nm TSMC process, featuring 6 cores and 12 threads with a base clock of 3.30 GHz and boost clock of 4.30 GHz. It draws 65 W of power and uses the AMD Socket AM5 platform. The Intel Core Ultra 7 366H, by contrast, uses the Panther Lake architecture (Panther Lake-H generation) on Intel’s 3 nm process, packing 16 cores and 16 threads with a base clock of 2.00 GHz and boost clock of 4.80 GHz, while consuming only 25 W. The Intel chip’s higher core count and boost clock directly contribute to its benchmark dominance, despite its lower base clock.

Cache configurations differ significantly. The AMD chip provides 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Intel part offers 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3 cache. The Intel processor’s larger per-core L1 and L2 caches, combined with a higher total L3 cache, give it a data-access advantage that shows up in memory-sensitive workloads. Memory bandwidth also favors Intel at 115.2 GB/s versus AMD’s 83.2 GB/s, with the Intel chip supporting both DDR5 and LPDDR5X memory types while AMD supports only DDR5. The Intel part’s PCIe Gen 5 implementation provides 12 CPU-only lanes, whereas AMD offers 24 lanes, giving the desktop chip more expansion headroom for GPUs and storage.

Head-to-Head Benchmarks

The largest single victory for the Intel Core Ultra 7 366H comes in the passmark_find_prime_numbers test, where it scores 326 against AMD’s 79, a 75.8% gap that reflects the Intel chip’s immense integer throughput advantage in tight loops. Floating-point math follows closely, with Intel scoring 103,615 versus AMD’s 40,784, a 60.6% lead that underscores the Panther Lake architecture’s floating-point prowess. Physics simulation shows a 60.1% gap (2880 vs 1150), indicating that the Intel processor handles rigid-body and particle dynamics far more efficiently.

In more general workloads, the Intel chip leads by smaller but still significant margins. Multithreaded performance shows a 35.1% advantage (33,429 vs 21,712), driven by the Intel part’s 16 cores against AMD’s 6 cores. Data compression shows a 20.1% lead (327,455 vs 261,749), while random string sorting shows a 21.9% edge (39,814 vs 31,110). Integer math displays a 22.7% gap (83,695 vs 64,733), and extended instructions show a 25.9% difference (26,901 vs 19,924). Data encryption shows a 42.5% lead (25,845 vs 14,865), which is notable for anyone handling encrypted files or VPN traffic. Single-thread performance, often a key indicator of everyday responsiveness, favors Intel by 19.7% (4043 vs 3248), meaning the Intel chip feels snappier even in lightly threaded applications.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 7 366H has 16 cores and 16 threads, while the AMD Ryzen 5 7400 has 6 cores and 12 threads. The Intel chip’s higher core count directly contributes to its multithreaded performance advantage of 35.1%.

Q: Does the AMD Ryzen 5 7400 support ECC memory?

A: Yes, the AMD Ryzen 5 7400 supports ECC memory, while the Intel Core Ultra 7 366H does not. This makes the AMD chip more suitable for error-sensitive computing environments.

Q: What is the boost clock difference between the two processors?

A: The Intel Core Ultra 7 366H has a boost clock of 4.80 GHz, which is higher than the AMD Ryzen 5 7400’s boost clock of 4.30 GHz. This contributes to Intel’s 19.7% lead in single-thread performance.

Q: Which processor has higher memory bandwidth?

A: The Intel Core Ultra 7 366H offers 115.2 GB/s of memory bandwidth, compared to the AMD Ryzen 5 7400’s 83.2 GB/s. The Intel chip also supports more memory types, including DDR5 and LPDDR5X.

Q: Are both processors currently in production?

A: Yes, both the AMD Ryzen 5 7400 and the Intel Core Ultra 7 366H have an active production status.

Q: Which processor has a higher percentile ranking among all CPUs?

A: The AMD Ryzen 5 7400 has an 88th percentile ranking, while the Intel Core Ultra 7 366H has an 87th percentile ranking. Despite Intel winning all head-to-head tests, the AMD chip ranks marginally higher overall.

The Verdict

The benchmark data is unambiguous: the Intel Core Ultra 7 366H outperforms the AMD Ryzen 5 7400 in every measured category. For users prioritizing raw compute performance in floating-point math, physics simulation, data encryption, or multithreaded workloads, the Intel chip is the clear choice. Its 16-core design, higher boost clock, and larger caches deliver decisive wins across the board, with the smallest margin being a 19.7% single-thread advantage and the largest being a 75.8% gap in prime number finding. The Intel part also consumes less power (25 W vs 65 W), making it more efficient despite higher performance.

The AMD Ryzen 5 7400, however, is not without merit. As a desktop processor on the AM5 socket with an unlocked multiplier, it offers overclocking headroom and a longer upgrade path. Its ECC memory support is a feature that no Intel rival in this comparison provides, making it suitable for workstation or server use cases where data integrity is paramount. The AMD chip also provides more PCIe Gen 5 lanes (24 vs 12), enabling more expansion options for multiple GPUs or high-speed storage devices. For a builder who values platform flexibility and error-correcting memory over raw benchmark scores, the Ryzen 5 7400 remains a viable choice. But for anyone who measures success by frame rates, render times, or encryption throughput, the Intel Core Ultra 7 366H is the superior processor.

Specification Differences

| Specification | AMD Ryzen 5 7400 | Intel Core Ultra 7 366H |

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

| Cores | 6 | 16 |

| Threads | 12 | 16 |

| Base Clock | 3.30 GHz | 2.00 GHz |

| Boost Clock | 4.30 GHz | 4.80 GHz |

| TDP | 65 W | 25 W |

| Socket | AMD Socket AM5 | Intel BGA 2540 |

| Architecture | Zen 4 | Panther Lake |

| Process Node | 5 nm (TSMC) | 3 nm (Intel) |

| L1 Cache | 64 KB (per core) | 192 KB (per core) |

| L2 Cache | 1 MB (per core) | 2.5 MB (per core) |

| L3 Cache | 16 MB (shared) | 18 MB (shared) |

| Memory Support | DDR5 | DDR5, LPDDR5X |

| Memory Bandwidth | 83.2 GB/s | 115.2 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 24 Lanes (CPU only) | Gen 5, 12 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics | Intel Xe3 Graphics |

| Market Segment | Desktop | Mobile |

| Release Date | 2025-09-15 | 2026-01-04 |

| Multiplier Unlocked | Yes | No |