AMD Ryzen 5 PRO 8645HS vs AMD Ryzen AI 5 430 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep for the AMD Ryzen 5 PRO 8645HS across all 15 head-to-head benchmark comparisons, with zero wins for the AMD Ryzen AI 5 430. This is not a close contest; the margins range from modest single-thread gaps to massive multi-core deltas.

The largest single gap appears in Cinebench R23 multi-core, where the Ryzen 5 PRO 8645HS scores 19742 against 8130 for the Ryzen AI 5 430, a 142.8% advantage. This more than doubles the output in a heavily threaded rendering workload, reflecting the substantial difference in core and thread counts. Similarly, PassMark data encryption shows a 129% delta (17387 vs 7591), and PassMark random string sorting shows a 113.4% delta (35472 vs 16623). These are workloads where parallel throughput dominates, and the 6-core, 12-thread configuration of the 8645HS overwhelms the 4-core, 8-thread layout of the AI 5 430.

Multi-threaded productivity tasks follow the same pattern. PassMark multithread scores 23569 for the 8645HS versus 13320 for the AI 5 430, a 76.9% lead. PassMark integer math shows an 83.5% delta (72740 vs 39637), while PassMark extended instructions shows an 85.2% delta (21212 vs 11455). Data compression is 67.3% ahead (265826 vs 158912), and floating point math is also 67.3% ahead (45481 vs 27193). The physics workload, often sensitive to both core count and memory latency, shows a 66.4% delta (1208 vs 726).

The closest margins appear in single-thread tests. Cinebench R15 single-core shows only a 4.1% delta (280 vs 269), and PassMark single-thread shows a 4.8% delta (3858 vs 3683). Cinebench R23 single-core is the outlier within this group: the 8645HS scores 2787 versus 1797, a 55.1% delta. This is a peculiar result given the small gaps in the other single-thread tests, and it suggests that the R23 workload may be more sensitive to the higher boost clock of the 8645HS (5.00 GHz versus 4.50 GHz) or to differences in the underlying Zen 4 versus Zen 5 / Zen 5c architecture. The AI 5 430 posts a higher base clock for its efficiency cores in some configurations, but the recorded boost clock is lower, and the data indicates that sustained single-thread performance in R23 favors the older architecture by a wide margin.

The remaining PassMark tests show consistent leads for the 8645HS. Prime number finding is 65.9% ahead (73 vs 44), which is a small absolute score but a large relative gap. This workload often scales with integer throughput and cache hierarchy, and the 16 MB shared L3 cache of the 8645HS versus the 4 MB L3 of the AI 5 430 likely plays a role. The 4.1% and 4.8% single-thread margins in R15 and PassMark single-thread, respectively, indicate that for lightly threaded, short-duration tasks, the two processors are nearly equivalent. The 55.1% gap in R23 single-core, however, warns that not all single-thread workloads behave alike.

The Verdict

The benchmark data is unambiguous. The AMD Ryzen 5 PRO 8645HS wins every recorded comparison, and its average benchmark score of 30879 places it in the 82nd percentile of all CPUs in the database. The AMD Ryzen AI 5 430, with an average score of 19617, sits in the 73rd percentile. The 8645HS sits near a cluster of rivals including the AMD Ryzen 7 8700F (30746, 0.4% delta), Intel Core i7-13700TE (31028, -0.5% delta), AMD Ryzen 9 8945HS (31074, -0.6% delta), and Intel Core i7-12700F (31081, -0.6% delta). The AI 5 430, by contrast, sits near the AMD Ryzen 5 5500 (19593, 0.1% delta), Intel Core i5-12500 (19668, -0.3% delta), Intel Core i5-11600KF (19723, -0.5% delta), and Intel Core i7-10700F (19499, 0.6% delta). The 8645HS is effectively competing with upper-mid-range desktop and high-end mobile parts from a generation or two ago, while the AI 5 430 is competing with older mainstream desktop chips.

For users whose workloads resemble the benchmark suite, the 8645HS is the clear choice. It delivers more than double the multi-core rendering score, 76.9% higher multithread throughput, and 83.5% higher integer math performance. The only scenario where the AI 5 430 comes close is in the short single-thread tests, where the 4.8% and 4.1% deltas are within noise for many real-world applications. But even there, the R23 single-core result flips the narrative, showing a 55.1% advantage for the 8645HS. The data does not support any scenario where the AI 5 430 outperforms the 8645HS in the recorded metrics.

The AI 5 430 does carry a newer generation label (Ryzen AI 400 series, Zen 5 / Zen 5c architecture) and a later release date of 2026-01-04, versus 2024-04-15 for the 8645HS. However, the architecture tag alone does not translate into benchmark wins. The 8645HS uses Zen 4 (Hawk Point), while the AI 5 430 uses Gorgon Point with Zen 5 / Zen 5c cores. The newer process node is the same (4 nm TSMC for both), so the performance gap is not a process advantage. It is a core count, cache size, and clock speed disadvantage for the AI 5 430.

Where Each One Wins

The Ryzen 5 PRO 8645HS wins in every recorded benchmark. The most pronounced wins are in multi-threaded rendering, encryption, and sorting workloads, where the 6-core, 12-thread configuration and 16 MB L3 cache provide a structural advantage. The 142.8% delta in Cinebench R23 multi-core is the standout, but the 129% delta in data encryption and 113.4% delta in random string sorting are equally decisive. These are workloads that scale with core count, thread count, and cache capacity, and the 8645HS has more of all three.

The AI 5 430 does not win any recorded benchmark, but its relative strength is in short single-thread tasks. The 4.1% delta in Cinebench R15 single-core and 4.8% delta in PassMark single-thread show that for quick, light threads, the AI 5 430 is nearly on par. This suggests that for interactive responsiveness, basic office tasks, or lightly threaded applications with short bursts of activity, the user experience may be similar. The 4-core configuration with 8 threads is sufficient for such workloads, and the lower TDP of 28 watts versus 45 watts indicates that the AI 5 430 is designed for more power-constrained environments.

The AI 5 430 also offers a newer integrated graphics solution, the Radeon 840M, versus the Radeon 760M in the 8645HS. The benchmark data does not include graphics scores, so a direct comparison is not possible from the recorded information. However, the presence of a newer iGPU generation suggests potential advantages in media encoding or light gaming, though this is speculative given the lack of data.

FAQ

Q: Which processor has a higher multi-core benchmark score?

A: The AMD Ryzen 5 PRO 8645HS scores 19742 in Cinebench R23 multi-core, 142.8% higher than the AMD Ryzen AI 5 430's 8130. In PassMark multithread, the 8645HS scores 23569 versus 13320, a 76.9% lead.

Q: Are the single-thread performances similar?

A: In Cinebench R15 single-core, the 8645HS scores 280 versus 269, a 4.1% delta. In PassMark single-thread, the scores are 3858 versus 3683, a 4.8% delta. However, in Cinebench R23 single-core, the 8645HS scores 2787 versus 1797, a 55.1% delta, so results vary by workload.

Q: What are the core and thread counts?

A: The AMD Ryzen 5 PRO 8645HS has 6 cores and 12 threads. The AMD Ryzen AI 5 430 has 4 cores and 8 threads.

Q: Which processor has more L3 cache?

A: The AMD Ryzen 5 PRO 8645HS has 16 MB of shared L3 cache. The AMD Ryzen AI 5 430 has 4 MB of L3 cache.

Q: What are the boost clocks?

A: The AMD Ryzen 5 PRO 8645HS has a boost clock of 5.00 GHz. The AMD Ryzen AI 5 430 has a boost clock of 4.50 GHz.

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 5 PRO 8645HS has an average benchmark score of 30879, placing it in the 82nd percentile. The AMD Ryzen AI 5 430 has an average score of 19617, placing it in the 73rd percentile.

Architecture Differences

The two processors come from different architectural lineages. The AMD Ryzen 5 PRO 8645HS uses Zen 4 architecture under the codename Hawk Point, part of the 8000 series. The AMD Ryzen AI 5 430 uses Gorgon Point, with a generation label of Ryzen AI 400 (Zen 5 / Zen 5c). Both are built on a 4 nm process at TSMC, but the transistor count and die size are only recorded for the 8645HS: 25,000 million transistors on a 178 mm² die. The AI 5 430 has no recorded transistor count or die size.

The core layout differs significantly. The 8645HS has 6 cores and 12 threads, while the AI 5 430 has 4 cores and 8 threads. The L1 cache also differs: the 8645HS has 64 KB per core, while the AI 5 430 has 80 KB per core. L2 cache is identical at 1 MB per core. L3 cache is a major differentiator, with the 8645HS offering 16 MB shared versus 4 MB for the AI 5 430. Neither processor has 3D V-Cache.

The sockets differ: the 8645HS uses AMD Socket FP7, while the AI 5 430 uses AMD Socket FP8. This means they are not drop-in compatible. The PCIe configuration also differs, with the 8645HS offering Gen 4 with 20 lanes (CPU only) and the AI 5 430 offering Gen 4 with 14 lanes (CPU only). The integrated graphics differ as well: Radeon 760M for the 8645HS and Radeon 840M for the AI 5 430.

Specification Differences

The recorded specifications where the two processors differ are as follows. The 8645HS has 6 cores and 12 threads, while the AI 5 430 has 4 cores and 8 threads. Base clock is 4.30 GHz for the 8645HS versus 2.00 GHz for the AI 5 430. Boost clock is 5.00 GHz versus 4.50 GHz. TDP is 45 watts versus 28 watts. The socket is FP7 versus FP8. Architecture is Zen 4 versus Zen 5 / Zen 5c, with codename Hawk Point versus Gorgon Point. The generation label is Ryzen 5 (Zen 4 (Hawk Point)) versus Ryzen AI 400 (Zen 5 / Zen 5c).

The cache hierarchy differs in L1 (64 KB per core versus 80 KB per core) and L3 (16 MB shared versus 4 MB). Memory support is DDR5 for the 8645HS versus DDR5 and LPDDR5X for the AI 5 430. PCIe lanes are 20 versus 14, both Gen 4. Integrated graphics are Radeon 760M versus Radeon 840M. Release dates are 2024-04-15 for the 8645HS and 2026-01-04 for the AI 5 430. The part numbers are 100-000001315(FP7r2) and 100-000001388(FP7) for the 8645HS, and 100-000001787 for the AI 5 430. Both support ECC memory, both use dual-channel memory with 89.6 GB/s bandwidth, both are mobile market segments, both are active production, and neither has an unlocked multiplier. Neither has a recorded launch MSRP.