AMD Ryzen 5 PRO 8645HS vs Intel Core i5-14401E Comparison

Where Each One Wins

The recorded benchmark data presents a one-sided comparison. The AMD Ryzen 5 PRO 8645HS wins all six head-to-head tests against the Intel Core i5-14401E. This is not a narrow victory either, the AMD part leads by a consistent margin of roughly 8.7% across every Cinebench workload, both single-core and multi-core.

The AMD processor's advantage appears uniform rather than workload-specific. In Cinebench R15, R20, and R23, the delta remains at 8.5% to 8.7% regardless of whether the test stresses one thread or all twelve. This consistency suggests the performance gap stems from fundamental architectural efficiency rather than a particular feature that only benefits certain instruction streams.

For single-threaded tasks, the Ryzen 5 PRO 8645HS posts a Cinebench R23 score of 2787 against the Intel part's 2564. The 8.7% lead in this test matters for everyday responsiveness, legacy applications, and lightly threaded workloads where boost behavior and per-core efficiency dominate.

In multi-threaded rendering, the gap persists at the same percentage. The AMD chip reaches 19742 in Cinebench R23 multi-core, while the Intel Core i5-14401E manages 18161. Both processors have six cores and twelve threads, so the difference reflects how efficiently each design uses those identical resources.

The Intel Core i5-14401E holds no benchmark wins in the recorded data. Its percentile ranking of 60 against all CPUs also trails the AMD part's 82nd percentile, reinforcing that the Ryzen processor sits in a higher performance tier within the database's aggregate results.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 5 PRO 8645HS uses the Zen 4 architecture under the Hawk Point codename, built on a 4 nm process at TSMC. The Intel Core i5-14401E relies on the Raptor Lake architecture with the Raptor Lake-R codename, manufactured on a 10 nm process at Intel's own fabs.

Process technology creates a substantial efficiency gap. The AMD chip integrates 25,000 million transistors on a 178 mm² die, while the Intel part uses a larger 215 mm² die with no transistor count recorded in the database. The smaller process node gives AMD a density advantage that likely contributes to its benchmark lead.

Cache configurations differ in both capacity and organization. The AMD processor provides 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Intel processor gives each core 80 KB of L1, 1.25 MB of L2, and a larger 20 MB shared L3 pool. Intel actually offers more cache per core at every level, yet still trails in performance, indicating that raw cache capacity does not compensate for other architectural differences.

Clock speeds favor AMD substantially. The Ryzen 5 PRO 8645HS has a 4.30 GHz base clock and 5.00 GHz boost clock. The Intel Core i5-14401E runs at 2.50 GHz base and 4.70 GHz boost. The AMD part starts 1.8 GHz higher at base frequency and boosts 300 MHz higher, a significant gap that directly explains much of the single-thread performance advantage.

Memory support diverges as well. The AMD chip supports DDR5 exclusively with dual-channel configuration and a recorded memory bandwidth of 89.6 GB/s. The Intel processor supports both DDR4 and DDR5 in dual-channel mode, but the database lists no memory bandwidth figure for it. Both support ECC memory.

The AMD processor provides PCIe Gen 4 with 20 CPU lanes, while the Intel chip offers PCIe Gen 5 with 16 CPU lanes. The newer PCIe standard on the Intel side represents a connectivity advantage for storage and GPU bandwidth, though it does not translate into CPU compute performance in these benchmarks.

Integrated graphics differ notably. The AMD Ryzen 5 PRO 8645HS includes a Radeon 760M, while the Intel Core i5-14401E ships with UHD Graphics 730. The database records no graphics benchmark scores, so the comparison remains qualitative, but the Radeon 760M is generally positioned as the more capable integrated solution.

The market segments also differ. AMD targets mobile with the FP7 socket, while Intel positions the i5-14401E as a desktop part on Socket 1700. The AMD processor carries a 45 W TDP, and the Intel chip runs at 65 W. The AMD part achieves higher benchmark scores at a lower thermal envelope, a notable efficiency result.

Release timing is close, with AMD launching on 2024-04-15 and Intel on 2024-06-30. Neither processor has a recorded launch MSRP in the database.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 5 PRO 8645HS boosts to 5.00 GHz, while the Intel Core i5-14401E reaches 4.70 GHz. The AMD part also has a much higher base clock at 4.30 GHz versus 2.50 GHz.

Q: Do both processors have the same core and thread counts?

A: Yes, both have 6 cores and 12 threads. The performance difference in the recorded benchmarks therefore comes from architectural efficiency, clock speeds, and cache design rather than core count.

Q: Which processor supports faster PCIe connectivity?

A: The Intel Core i5-14401E supports PCIe Gen 5 with 16 CPU lanes. The AMD Ryzen 5 PRO 8645HS uses PCIe Gen 4 with 20 CPU lanes, which offers more lanes but an older generation.

Q: How large is the performance gap in multi-core workloads?

A: The AMD processor leads by 8.7% in Cinebench R23 multi-core, scoring 19742 against the Intel chip's 18161. The same 8.7% margin appears in Cinebench R15 and R20 multi-core tests.

Q: Which processor supports ECC memory?

A: Both processors support ECC memory. The AMD chip supports DDR5 exclusively, while the Intel part supports both DDR4 and DDR5.

Q: What is the difference in process node?

A: The AMD Ryzen 5 PRO 8645HS is built on a 4 nm process at TSMC, while the Intel Core i5-14401E uses a 10 nm process at Intel. The AMD die measures 178 mm², and the Intel die measures 215 mm².

Specification Differences

| Specification | AMD Ryzen 5 PRO 8645HS | Intel Core i5-14401E |

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

| Base clock | 4.30 GHz | 2.50 GHz |

| Boost clock | 5.00 GHz | 4.70 GHz |

| TDP | 45 W | 65 W |

| Socket | AMD Socket FP7 | Intel Socket 1700 |

| Architecture | Zen 4 | Raptor Lake |

| Codename | Hawk Point | Raptor Lake-R |

| Process node | 4 nm | 10 nm |

| Foundry | TSMC | Intel |

| Transistors | 25,000 million | Not recorded |

| Die size | 178 mm² | 215 mm² |

| L1 cache | 64 KB per core | 80 KB per core |

| L2 cache | 1 MB per core | 1.25 MB per core |

| L3 cache | 16 MB shared | 20 MB shared |

| Memory support | DDR5 | DDR4, DDR5 |

| Memory bandwidth | 89.6 GB/s | Not recorded |

| PCIe | Gen 4, 20 lanes | Gen 5, 16 lanes |

| Integrated graphics | Radeon 760M | UHD Graphics 730 |

| Market segment | Mobile | Desktop |

| Release date | 2024-04-15 | 2024-06-30 |

Head-to-Head Benchmarks

The six recorded head-to-head tests all favor the AMD Ryzen 5 PRO 8645HS, and the margins cluster tightly around 8.7%. This consistency across different Cinebench versions and workload types indicates a stable performance advantage rather than a benchmark-specific artifact.

In Cinebench R15 multi-core, the AMD processor scores 1989 against Intel's 1830, an 8.7% lead. The single-core variant shows 280 versus 258, an 8.5% margin. These are the closest results in the dataset, yet still clearly in AMD's favor.

Cinebench R20 repeats the pattern. Multi-core shows 8291 for AMD and 7627 for Intel, an 8.7% difference. Single-core shows 1170 against 1076, again 8.7%. The consistency between R15 and R20 suggests the architectural advantage scales uniformly with workload intensity.

Cinebench R23, the most demanding of the three render tests, confirms the trend. The AMD chip scores 19742 in multi-core, and the Intel chip scores 18161, a difference of 8.7%. Single-core results show 2787 versus 2564, also 8.7%. The AMD processor holds its relative advantage even as absolute scores increase with newer benchmark versions.

The broader database metrics reinforce these head-to-head results. The AMD Ryzen 5 PRO 8645HS has an average benchmark score of 30879 and sits at the 82nd percentile of all CPUs. Its nearest rivals include the AMD Ryzen 7 8700F at 30746 with a delta of 0.4%, the Intel Core i7-13700TE at 31028 with a delta of -0.5%, and the AMD Ryzen 9 8945HS at 31074 with a delta of -0.6%. This places the chip in a competitive cluster near the top of its class.

The Intel Core i5-14401E presents a very different picture in the aggregate. Its average benchmark score is 5253, and it ranks at the 60th percentile. Its nearest rivals include the Intel Xeon E5-2699A v4 at 5259, the Intel Core i7-11700B at 5241, and the Intel Core i9-10850K at 5240. The Intel chip sits in a mid-range cluster, far from the performance tier occupied by the AMD processor.

The delta between the two processors' average benchmark scores is substantial. The AMD part's 30879 average dwarfs the Intel part's 5253, a gap that reflects both the architectural efficiency of Zen 4 and the different market positioning of the two products. Even accounting for the fact that the Intel chip has fewer recorded benchmark entries, the head-to-head Cinebench results alone establish a clear winner.

The Verdict

The data points to a decisive outcome. The AMD Ryzen 5 PRO 8645HS outperforms the Intel Core i5-14401E in every recorded benchmark, with a consistent 8.7% advantage across all Cinebench tests. The AMD processor also achieves this at a lower TDP of 45 W versus Intel's 65 W, which indicates better energy efficiency per unit of performance.

The architectural fundamentals favor AMD. The 4 nm TSMC process versus Intel's 10 nm node, the higher base and boost clocks, and the lower power envelope combine to deliver superior results. Intel's larger cache allocation, with 20 MB of L3 versus AMD's 16 MB, and its support for both DDR4 and DDR5 do not compensate for the performance deficit.

The market segment difference matters for purchasing decisions. The AMD Ryzen 5 PRO 8645HS is a mobile processor on the FP7 socket, suited for laptops and compact systems. The Intel Core i5-14401E is a desktop processor on Socket 1700. The AMD part's 45 W TDP aligns with mobile power budgets, while the Intel chip's 65 W TDP suits desktop cooling solutions.

The Intel processor does offer PCIe Gen 5 connectivity, which provides newer bandwidth standards for expansion slots and storage. It also supports DDR4 memory, which can lower platform costs for users with existing memory. These platform-level advantages, however, do not translate into CPU compute performance in the recorded benchmarks.

Users prioritizing raw processing performance, whether single-threaded or multi-threaded, should choose the AMD Ryzen 5 PRO 8645HS based on the recorded data. The 82nd percentile ranking and the consistent Cinebench leads establish it as the stronger processor. The Intel Core i5-14401E, with its 60th percentile ranking and no benchmark wins, serves a different role in the desktop segment where its PCIe Gen 5 support and DDR4 compatibility may hold value despite lower CPU scores.