AMD Ryzen 5 7500X3D vs Intel Core Ultra X7 358H Comparison

Head-to-Head Benchmarks

The head-to-head data is unambiguous: the Intel Core Ultra X7 358H wins all 11 recorded benchmark comparisons against the AMD Ryzen 5 7500X3D. The largest margin comes in floating-point math, where Intel scores 103842 versus AMD's 43594, a 58% advantage. That is a massive gap for workloads that rely heavily on FPU throughput, such as scientific simulations or certain encoding tasks.

Data encryption also favors Intel heavily, with 26046 versus 15797, a 39.3% lead. Prime number finding shows a 34.4% edge for Intel (337 vs 221), and extended instructions follow at 25% (27274 vs 20455). The multithread test gives Intel 33802 against AMD's 25047, a 25.9% margin. Even the closest contest, physics, goes to Intel by 8% (3021 vs 2779).

Single-thread performance, often a strong suit for AMD's desktop parts, also favors Intel here. The Intel chip records 4124 in the passmark single-thread test versus AMD's 3494, a 15.3% difference. Integer math is closer, with Intel at 83147 and AMD at 70774, a 14.9% gap. Data compression shows Intel ahead by 18.3% (332508 vs 271649), and random string sorting by 18.2% (40357 vs 32999). Across every measured workload, the Intel part delivers higher raw scores, with no benchmark in the database where the AMD chip takes the lead.

Architecture Differences

These two processors come from fundamentally different design philosophies. The AMD Ryzen 5 7500X3D is a desktop part built on TSMC's 5 nm process, using the Raphael codename and Zen 4 architecture. It packs 6 cores and 12 threads, with a base clock of 4.00 GHz and a boost clock of 4.50 GHz. The Intel Core Ultra X7 358H is a mobile processor on Intel's 3 nm node, codenamed Panther Lake and belonging to the Ultra X7 (Panther Lake-H) generation. It uses 16 cores but only 16 threads, indicating a hybrid design without hyperthreading on all cores, running at 1.90 GHz base and 4.80 GHz boost.

Cache configurations differ sharply. AMD's chip has 64 KB of L1 per core, 1 MB of L2 per core, and a massive 96 MB shared L3 cache, which is the hallmark of the X3D lineup. Intel offers 192 KB of L1 per core, 3 MB of L2 per core, but only 18 MB of shared L3. The larger L3 on AMD is designed to reduce memory latency in cache-sensitive workloads, though the benchmark data here does not show that advantage materializing against this particular Intel part.

Memory support also splits them. AMD uses DDR5 with dual-channel configuration, delivering 83.2 GB/s bandwidth. Intel uses LPDDR5X, also dual-channel, but at 153.6 GB/s, nearly double the bandwidth. AMD supports ECC memory; Intel does not. PCIe lanes differ as well: AMD provides Gen 5 with 24 lanes (CPU only), while Intel offers Gen 5 with just 4 lanes (CPU only). The Intel chip integrates Arc B390 graphics, while AMD includes Radeon Graphics. AMD's socket is AM5 with a 65 W TDP; Intel uses BGA 2540 with a 25 W TDP, reflecting its mobile intent.

Where Each One Wins

The Intel Core Ultra X7 358H wins every single benchmark in the head-to-head comparison, so the use-case split is mostly about degree of advantage rather than direction. The largest edges are in floating-point math (58%), encryption (39.3%), and prime number finding (34.4%), which points toward compute-heavy tasks like cryptography, scientific computing, and any workload that leverages vector or FPU instructions. The multithread lead of 25.9% also makes Intel the clear choice for parallel rendering or video encoding, though the margin is not as overwhelming as the FPU gap.

The AMD Ryzen 5 7500X3D does not win any recorded test, but its closest losses reveal where it is least disadvantaged. The physics test shows only an 8% gap, and integer math is 14.9% behind. Those are the workloads where the AMD chip is most competitive, suggesting that general integer-heavy productivity tasks and physics simulations are not complete blowouts. However, the data offers no scenario where the AMD part takes the lead, so any selection of the 7500X3D would have to rely on factors outside these benchmarks, such as platform longevity or the larger L3 cache, rather than measured performance wins.

FAQ

Q: Which processor has the higher single-thread score?

A: The Intel Core Ultra X7 358H records 4124 in the passmark single-thread test, while the AMD Ryzen 5 7500X3D scores 3494. Intel leads by 15.3%.

Q: How large is the multithread performance gap?

A: Intel scores 33802 versus AMD's 25047 in the passmark multithread test, a 25.9% advantage for the Intel chip.

Q: What is the biggest benchmark difference between the two?

A: Floating-point math shows the largest gap. Intel scores 103842, AMD scores 43594, giving Intel a 58% lead.

Q: Does the AMD chip have more L3 cache?

A: Yes. The AMD Ryzen 5 7500X3D has 96 MB of shared L3 cache, while the Intel Core Ultra X7 358H has 18 MB of shared L3.

Q: Which chip supports ECC memory?

A: The AMD Ryzen 5 7500X3D supports ECC memory. The Intel Core Ultra X7 358H does not.

Q: What are the TDP ratings?

A: AMD lists a 65 W TDP, while Intel lists 25 W. The Intel part is rated for much lower power draw.

Q: Which processor has more cores?

A: The Intel Core Ultra X7 358H has 16 cores, while the AMD Ryzen 5 7500X3D has 6 cores. Both have 16 threads on Intel versus 12 threads on AMD.

Specification Differences

| Specification | AMD Ryzen 5 7500X3D | Intel Core Ultra X7 358H |

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

| Cores | 6 | 16 |

| Threads | 12 | 16 |

| Base Clock | 4.00 GHz | 1.90 GHz |

| Boost Clock | 4.50 GHz | 4.80 GHz |

| TDP | 65 W | 25 W |

| Socket | AMD Socket AM5 | Intel BGA 2540 |

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

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

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

| L3 Cache | 96 MB (shared) | 18 MB (shared) |

| Memory Support | DDR5 | LPDDR5X |

| Memory Bandwidth | 83.2 GB/s | 153.6 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 24 Lanes (CPU only) | Gen 5, 4 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics | Arc B390 |

| Market Segment | Desktop | Mobile |

| Release Date | 2025-11-11 | 2026-01-04 |

| Launch MSRP | $269 | None listed |

The Verdict

The benchmark data is one-sided. The Intel Core Ultra X7 358H outperforms the AMD Ryzen 5 7500X3D across all 11 recorded tests, with margins ranging from 8% in physics to 58% in floating-point math. The Intel part also carries a higher average benchmark score of 40967 versus AMD's 44573 in the overall database, though the nearest rival comparisons show AMD's chip sitting at the 89th percentile versus Intel's 87th percentile. That discrepancy is worth noting: the AMD processor's average score is higher than the Intel chip's average, but in the direct head-to-head pairings, Intel wins every time.

For a builder focused purely on measured performance in these PassMark and Cinebench workloads, the Intel Core Ultra X7 358H delivers superior results in every category, especially in floating-point math, encryption, and multithreaded tasks. Its lower 25 W TDP also suggests better efficiency for mobile use, and its LPDDR5X memory bandwidth of 153.6 GB/s is nearly double that of AMD's DDR5 configuration.

The AMD Ryzen 5 7500X3D offers the larger L3 cache at 96 MB, ECC support, and a desktop AM5 socket, which may appeal to users building a desktop system with upgrade potential. Its 65 W TDP is higher than Intel's, and its boost clock is lower at 4.50 GHz versus 4.80 GHz. But on raw benchmark results, the database shows no scenario where AMD wins. The choice comes down to whether the platform features matter more than the measured performance gaps, because the numbers do not favor the AMD chip in any recorded test.