AMD Ryzen AI 7 345 vs AMD Ryzen Embedded 8645HS Comparison

Head-to-Head Benchmarks

The AMD Ryzen AI 7 345 and the AMD Ryzen Embedded 8645HS present an interesting comparison because the database contains detailed benchmark results for only one of them. The Ryzen AI 7 345 has a full suite of recorded scores across Cinebench and PassMark tests, while the Ryzen Embedded 8645HS has no benchmark entries in the database. This means the head-to-head comparison is necessarily one-sided: the analysis can only describe what the Ryzen AI 7 345 delivers in absolute terms and how it positions against other CPUs in the database, not against the Embedded 8645HS directly.

Starting with multi-core performance, the Ryzen AI 7 345 records a Cinebench R23 multi-core score of 11461 and a Cinebench R15 multi-core score of 1712. These are solid figures for a 6-core, 12-thread mobile processor. In PassMark tests, the same chip posts a multi-thread score of 19927, an integer math score of 63475, and a floating point math score of 42621. The data compression test yields 237484, while data encryption reaches 11814. Extended instructions score 17003, and the find prime numbers test returns a modest 62. Random string sorting completes at 25435.

Single-core results are equally informative. The Cinebench R23 single-core score is 1818, and the Cinebench R15 single-core score is 271. PassMark single-thread performance is recorded at 3875. These numbers place the Ryzen AI 7 345 in a specific performance tier. The database shows its average benchmark score is 29461, and it sits at the 81st percentile among all CPUs tracked. That percentile indicates the chip outperforms roughly four out of five processors in the database, which is a strong showing for a mobile part.

Looking at the nearest rivals in the database provides context. The AMD Ryzen 7 3800X has an average score of 29447, which is essentially identical to the Ryzen AI 7 345’s 29461; the delta is 0 percent. The AMD EPYC 9654 averages 29409, also within 0.2 percent. The Intel Core i5-13500HX scores 29270, putting the Ryzen AI 7 345 ahead by 0.7 percent. The AMD Ryzen 7 PRO 5755GE averages 29656, which means the Ryzen AI 7 345 trails it by 0.7 percent. These deltas are tiny, suggesting that in aggregate benchmark performance, the Ryzen AI 7 345 sits in a very competitive band alongside these four other processors, none of which dominate by more than a fraction of a percent.

Because the Ryzen Embedded 8645HS has no benchmark scores, the database cannot produce a direct win count for either chip. The head-to-head benchmark section in the record is empty, and both winsA and winsB are zero. This does not mean the chips are equal; rather, it means no measured performance data exists for the Embedded part in the database. The analysis must therefore rely on architectural specifications and the known scores of the Ryzen AI 7 345 to draw conclusions.

Where Each One Wins

For the AMD Ryzen AI 7 345, the wins are clear wherever benchmark data exists. It wins in single-threaded tasks as measured by Cinebench R23 (1818) and PassMark single-thread (3875). It wins in multi-threaded workloads as shown by Cinebench R23 multi-core (11461) and PassMark multi-thread (19927). It also wins in specialized operations such as data compression (237484), data encryption (11814), extended instructions (17003), integer math (63475), floating point math (42621), random string sorting (25435), and physics (1089). Every recorded test favors the Ryzen AI 7 345 simply because it is the only chip with recorded scores.

The Ryzen Embedded 8645HS, by contrast, has no recorded wins because no benchmarks exist for it in the database. However, its specifications suggest where it would likely perform well if measured. It has a base clock of 4.30 GHz and a boost clock of 5.00 GHz, both higher than the Ryzen AI 7 345’s 2.00 GHz base and 4.60 GHz boost. Higher clocks generally translate into faster single-thread execution, assuming similar instructions per cycle. The Embedded part uses the Zen 4 architecture, while the Ryzen AI 7 345 uses a mix of Zen 5 and Zen 5c cores (the generation field lists "Ryzen AI 300 (Zen 5 / Zen 5c)"). Zen 5 typically offers better IPC than Zen 4, but the Embedded 8645HS’s much higher clock speeds could offset that in single-thread scenarios. Without measured data, this remains speculative, but the clock difference is substantial.

In multi-thread workloads, the story is more complex. Both chips have 6 cores and 12 threads, so raw thread counts are identical. The Ryzen AI 7 345 has a 28 W TDP, while the Embedded 8645HS has a 45 W TDP. Higher TDP usually allows sustained higher clocks under load, which favors the Embedded part in longer multi-thread runs. However, the Ryzen AI 7 345’s L3 cache is only 4 MB, while the Embedded 8645HS has 16 MB shared L3. That larger cache could help with repeated data access patterns, but again, no benchmark confirms this.

The Ryzen AI 7 345 also has a process node advantage in terms of transistor count and die size: the Embedded 8645HS lists 25,000 million transistors on a 178 mm² die, while the Ryzen AI 7 345 does not report those figures. Both use a 4 nm TSMC process, so the node itself is identical.

Architecture Differences

The two processors diverge significantly in architecture. The Ryzen AI 7 345 is codenamed Krackan Point and belongs to the Ryzen AI 300 generation, which the database describes as "Zen 5 / Zen 5c". This means it likely uses a combination of full Zen 5 cores and denser Zen 5c cores, although the exact core configuration is not specified in the record. The architecture field is null, but the generation string provides the Zen 5 / Zen 5c designation.

The Ryzen Embedded 8645HS is codenamed Hawk Point and belongs to the Ryzen Embedded 8000 series, with a generation string of "Ryzen Embedded (Zen 4 (Hawk Point))". Its architecture is listed explicitly as Zen 4. This is one generation older than the Zen 5 based Ryzen AI 7 345, but the Embedded part compensates with higher clock speeds.

Cache configurations differ notably. The Ryzen AI 7 345 has 80 KB of L1 per core, 1 MB of L2 per core, and 4 MB of L3 total. The Ryzen Embedded 8645HS has 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The L3 difference is stark: 4 MB versus 16 MB, a fourfold gap. Larger L3 caches generally improve performance in workloads with large working sets, such as database queries or scientific simulations, though the Ryzen AI 7 345’s newer core architecture may compensate in other areas.

Memory support also differs. The Ryzen AI 7 345 supports DDR5 and LPDDR5X, while the Ryzen Embedded 8645HS supports DDR5 only. Both use a dual-channel memory bus, and both have the same memory bandwidth of 89.6 GB/s. The Embedded part supports ECC memory, while the Ryzen AI 7 345 does not. ECC is a significant feature for embedded and server-type applications where data integrity is critical.

PCIe lane counts differ as well. The Ryzen AI 7 345 provides Gen 4 with 14 lanes (CPU only), while the Ryzen Embedded 8645HS provides Gen 4 with 20 lanes. The extra six lanes on the Embedded part allow for more expansion devices, which is typical for embedded use cases.

Integrated graphics differ: the Ryzen AI 7 345 uses a Radeon 840M, while the Ryzen Embedded 8645HS uses a Radeon 760M. The Radeon 840M is a newer iGPU based on the RDNA 3.5 architecture, while the 760M is RDNA 3. No benchmark scores exist for either iGPU in the database, so performance comparisons cannot be made.

The socket is identical: both use AMD Socket FP8. The production status for both is "Active". The Ryzen AI 7 345 has a release date of 2025-01-14, while the Ryzen Embedded 8645HS has a release date of 2024-04-01. The Ryzen AI 7 345 has a part number of 100-000002122, while the Embedded part’s part number is unknown. Neither chip has a launch MSRP in the database.

The Verdict

The data presents a clear but incomplete picture. The AMD Ryzen AI 7 345 has extensive benchmark coverage, showing it to be a capable 6-core mobile processor that ranks at the 81st percentile among all CPUs. Its average benchmark score of 29461 places it in a tight cluster with the Ryzen 7 3800X, EPYC 9654, Core i5-13500HX, and Ryzen 7 PRO 5755GE, with all deltas within 0.7 percent. This suggests the Ryzen AI 7 345 delivers balanced performance across single-thread and multi-thread tasks, with particularly strong results in data compression (237484) and floating point math (42621).

The AMD Ryzen Embedded 8645HS has no benchmark data, so no verdict can be drawn from measured performance. Its specifications, however, indicate a different design philosophy. The 45 W TDP, 5.00 GHz boost clock, 16 MB L3 cache, ECC support, and 20 PCIe lanes point toward embedded applications that prioritize connectivity, reliability, and sustained throughput over power efficiency. The Zen 4 architecture is one generation behind the Ryzen AI 7 345’s Zen 5 / Zen 5c, but the clock advantage is substantial: 4.30 GHz base versus 2.00 GHz base, and 5.00 GHz boost versus 4.60 GHz boost.

Users who need a mobile processor with proven, recorded performance in the database should choose the Ryzen AI 7 345. It has demonstrable scores across Cinebench and PassMark, and its 81st percentile ranking confirms it outperforms most CPUs in the database. Users who need ECC memory, more PCIe lanes, and a larger L3 cache for embedded workloads should choose the Ryzen Embedded 8645HS, but they must accept that no benchmark data exists to quantify its performance. The choice ultimately depends on whether measured performance (Ryzen AI 7 345) or specific embedded features (Ryzen Embedded 8645HS) matter more for the intended application.

FAQ

Q: Which processor has higher single-core performance?

A: The Ryzen AI 7 345 records a Cinebench R23 single-core score of 1818 and a PassMark single-thread score of 3875. The Ryzen Embedded 8645HS has no recorded single-core benchmarks, but its 5.00 GHz boost clock is higher than the Ryzen AI 7 345’s 4.60 GHz boost clock.

Q: Do both processors have the same number of cores and threads?

A: Yes, both have 6 cores and 12 threads.

Q: Which processor supports ECC memory?

A: The Ryzen Embedded 8645HS supports ECC memory. The Ryzen AI 7 345 does not.

Q: What is the L3 cache size difference?

A: The Ryzen AI 7 345 has 4 MB of L3 cache. The Ryzen Embedded 8645HS has 16 MB of shared L3 cache.

Q: Which processor has a higher TDP?

A: The Ryzen Embedded 8645HS has a TDP of 45 W. The Ryzen AI 7 345 has a TDP of 28 W.

Q: What is the process node for both chips?

A: Both use a 4 nm process node from TSMC.

Specification Differences

| Specification | AMD Ryzen AI 7 345 | AMD Ryzen Embedded 8645HS |

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

| Series | null | 8000 series |

| Architecture | null (generation: Zen 5 / Zen 5c) | Zen 4 |

| Codename | Krackan Point | Hawk Point |

| Generation | Ryzen AI 300 (Zen 5 / Zen 5c) | Ryzen Embedded (Zen 4 (Hawk Point)) |

| Base Clock | 2.00 GHz | 4.30 GHz |

| Boost Clock | 4.60 GHz | 5.00 GHz |

| TDP | 28 W | 45 W |

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

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

| L3 Cache | 4 MB | 16 MB (shared) |

| Memory Support | DDR5, LPDDR5X | DDR5 |

| ECC Memory | false | true |

| PCIe | Gen 4, 14 Lanes (CPU only) | Gen 4, 20 Lanes (CPU only) |

| Integrated Graphics | Radeon 840M | Radeon 760M |

| Transistors | null | 25,000 million |

| Die Size | null | 178 mm² |

| Release Date | 2025-01-14 | 2024-04-01 |

| Part Number | 100-000002122 | unknown |

| Launch MSRP | null | null |

| Multiplier Unlocked | false | false |

| Market Segment | Mobile | Mobile |

| Socket | AMD Socket FP8 | AMD Socket FP8 |

| Memory Bus | Dual-channel | Dual-channel |

| Memory Bandwidth | 89.6 GB/s | 89.6 GB/s |

| Process Node | 4 nm | 4 nm |

| Foundry | TSMC | TSMC |

| Production Status | Active | Active |

| Percentile vs All CPUs | 81 | 50 |

| Average Benchmark Score | 29461 | 0 |

| Benchmark Scores | 15 recorded tests | none recorded |