AMD Ryzen 7 5700X3D vs Intel Core i5-12450HX Comparison

The AMD Ryzen 7 5700X3D is the clear performance winner in this comparison, taking 15 of 17 head-to-head benchmarks against the Intel Core i5-12450HX, with the Intel part managing only two wins in single-threaded PassMark tests. The data shows a decisive overall advantage for the AMD desktop chip, though the Intel mobile processor’s strengths in specific single-thread workloads prevent it from being a total shutout.

Head-to-Head Benchmarks

The Ryzen 7 5700X3D dominates the multi-core and compute-heavy workloads by margins that range from substantial to extreme. In Cinebench R23 multi-core, the AMD chip scores 22,366 against Intel’s 11,390, a massive 96.4% advantage. This is the largest delta in the entire benchmark set and reflects the AMD part’s ability to scale across all 16 threads. The Cinebench R20 multi-core test shows a similar pattern: 9,393 for AMD versus 6,304 for Intel, a 49% lead. Even in the older Cinebench R15 multi-core test, the Ryzen 7 5700X3D posts 2,254 versus 1,512, a 49.1% edge.

Single-core Cinebench results also favor AMD, though by a smaller relative margin. In Cinebench R23 single-core, the Ryzen 7 5700X3D scores 3,157 against Intel’s 2,119, a 49% lead. The R20 single-core test shows 1,325 versus 889 (49%), and R15 single-core shows 318 versus 213 (49.3%). These consistent single-core wins suggest the AMD architecture holds an advantage even when thread count is not a factor.

The PassMark suite reinforces the AMD dominance in most categories. The most dramatic result comes in passmark_find_prime_numbers, where AMD scores 224 versus Intel’s 54 — a 314.8% advantage. PassMark physics shows a 147.3% lead (2,686 versus 1,086), and data encryption shows a 55.1% edge (18,788 versus 12,110). Extended instructions favor AMD by 53.3% (21,202 versus 13,832), and integer math by 42.1% (81,257 versus 57,189).

The Intel Core i5-12450HX wins only in the PassMark single-thread test, where it scores 3,340 versus AMD’s 2,970, an 11.1% advantage. This is the sole category where the Intel part demonstrates clear superiority. Interestingly, the AMD chip wins the PassMark multithread test by 44% (26,318 versus 18,274), confirming that Intel’s single-thread win does not translate to multi-threaded performance.

Where Each One Wins

The Ryzen 7 5700X3D wins in every multi-threaded scenario and in all Cinebench tests, making it the clear choice for rendering, video encoding, and any workload that uses more than a few cores. Its 96.4% lead in Cinebench R23 multi-core is particularly telling — this is a workload that scales well with threads, and the AMD chip’s 16 threads versus Intel’s 12 give it a structural advantage. The 147.3% lead in PassMark physics and 314.8% lead in prime number finding further establish AMD’s dominance in compute-heavy tasks.

The Intel Core i5-12450HX wins exclusively in PassMark single-threaded benchmarks. Its 3,340 score versus AMD’s 2,970 (11.1% higher) suggests it has an edge in lightly-threaded applications that rely on a single core’s peak performance. This could matter for certain legacy applications or specific workloads that are not well-optimized for multi-threading.

For the 3DMark tests that are available for the AMD chip (the Intel part has no 3DMark data in this comparison), the Ryzen 7 5700X3D shows strong scaling: 804 single-thread, 1,575 at 2 threads, 3,097 at 4 threads, 5,357 at 8 threads, and 6,764 at 16 threads. The near-linear scaling from 8 to 16 threads (5,357 to 6,764) suggests the chip utilizes its full thread count effectively.

Architecture Differences

The Ryzen 7 5700X3D uses AMD’s Zen 3 architecture (Vermeer) on a 7 nm TSMC process, while the Core i5-12450HX uses Intel’s Alder Lake architecture on a 10 nm Intel process. The die sizes differ substantially: AMD’s is 74 mm² versus Intel’s 215 mm². AMD reports 8,850 million transistors; Intel does not report a transistor count in the data.

Cache configurations are radically different. The AMD chip has 64 KB L1 per core, 512 KB L2 per core, and a shared 96 MB L3 cache. The Intel chip has 80 KB L1 per core, 1.25 MB L2 per core, and only 12 MB shared L3. The 96 MB versus 12 MB L3 difference is the most striking architectural distinction and likely contributes to AMD’s strong multi-threaded performance in cache-sensitive workloads.

Core and thread counts differ: both have 8 cores, but AMD supports 16 threads while Intel supports 12. The base clocks differ (3.00 GHz for AMD versus 2.40 GHz for Intel), but the boost clocks favor Intel (4.40 GHz versus 4.10 GHz). The AMD chip is a desktop part for Socket AM4, while Intel is a mobile part for BGA 1964. AMD supports ECC memory; Intel does not. AMD supports DDR4 only, while Intel supports both DDR4 and DDR5. AMD has no integrated graphics; Intel includes UHD Graphics 710. PCIe support differs: AMD offers Gen 4 with 20 lanes, Intel offers Gen 5 with 20 lanes.

FAQ

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

A: The AMD Ryzen 7 5700X3D wins all multi-core benchmarks, with leads ranging from 44% in PassMark multithread to 96.4% in Cinebench R23 multi-core.

Q: Does the Intel Core i5-12450HX win any benchmarks?

A: Yes, the Intel chip wins the PassMark single-thread test with a score of 3,340 versus AMD’s 2,970, an 11.1% advantage.

Q: What is the biggest performance gap between the two?

A: The largest delta is in passmark_find_prime_numbers, where AMD scores 224 versus Intel’s 54, a 314.8% advantage.

Q: How do the cache sizes compare?

A: AMD has 96 MB shared L3 cache, while Intel has 12 MB shared L3. AMD also has 64 KB L1 per core versus Intel’s 80 KB per core, and 512 KB L2 per core versus Intel’s 1.25 MB per core.

Q: Which chip has higher boost clock?

A: The Intel Core i5-12450HX has a 4.40 GHz boost clock, compared to the AMD Ryzen 7 5700X3D’s 4.10 GHz.

Q: Do both processors have integrated graphics?

A: No. The AMD Ryzen 7 5700X3D has no integrated graphics, while the Intel Core i5-12450HX includes UHD Graphics 710.

Specification Differences

| Field | AMD Ryzen 7 5700X3D | Intel Core i5-12450HX |

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

| Threads | 16 | 12 |

| Base Clock | 3.00 GHz | 2.40 GHz |

| Boost Clock | 4.10 GHz | 4.40 GHz |

| TDP | 105 W | 55 W |

| Socket | AMD Socket AM4 | Intel BGA 1964 |

| Process Node | 7 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die Size | 74 mm² | 215 mm² |

| L1 Cache | 64 KB (per core) | 80 KB (per core) |

| L2 Cache | 512 KB (per core) | 1.25 MB (per core) |

| L3 Cache | 96 MB (shared) | 12 MB (shared) |

| Memory Support | DDR4 | DDR4, DDR5 |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 20 Lanes | Gen 5, 20 Lanes |

| Integrated Graphics | N/A | UHD Graphics 710 |

| Market Segment | Desktop | Mobile |

| Release Date | 2024-01-07 | 2022-05-09 |

| Launch MSRP | $249 | $284 |

| Multiplier Unlocked | No | Yes |

The Verdict

The benchmark data is unambiguous: the AMD Ryzen 7 5700X3D is the faster processor in nearly every measurable workload. Its 15-to-2 win record in head-to-head tests, combined with a 96.4% lead in Cinebench R23 multi-core and a 314.8% lead in prime number finding, establishes it as the superior choice for multi-threaded productivity, rendering, and compute-heavy tasks. The 96 MB L3 cache and 16 threads give it a structural advantage that the Intel part cannot overcome.

The Intel Core i5-12450HX’s only wins come in PassMark single-threaded tests, where its 11.1% advantage (3,340 versus 2,970) shows genuine strength in lightly-threaded workloads. Its higher boost clock (4.40 GHz versus 4.10 GHz) and larger per-core L1 and L2 caches likely contribute to this edge. For users whose applications are strictly single-threaded and cannot utilize multiple cores, the Intel chip holds a measurable but narrow advantage.

However, the overall average benchmark scores tell the story: AMD averages 24,709 versus Intel’s 24,576, a 0.5% difference that places them as near-identical rivals in the aggregate. Both chips sit at the 77th percentile among all CPUs. The choice comes down to workload: for multi-threaded performance, the Ryzen 7 5700X3D is the overwhelming pick; for single-threaded PassMark performance, the Core i5-12450HX takes the win. Given the breadth and magnitude of AMD’s multi-threaded victories, the data favors the Ryzen 7 5700X3D for most users.