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

AMD Ryzen AI 5 430 and AMD Ryzen Embedded 8645HS are both mobile-class processors built on TSMC's 4 nm process, but they target different workloads. The Ryzen AI 5 430 uses a hybrid Zen 5 / Zen 5c configuration with a 28 W TDP, while the Embedded 8645HS uses full Zen 4 cores in a 45 W package. Benchmark data is complete for the Ryzen AI 5 430, placing it in the 73rd percentile of all CPUs, while the Embedded 8645HS lacks recorded benchmark scores in the database, leaving direct comparisons to specification and architectural analysis.

Where Each One Wins

The AMD Ryzen AI 5 430 wins in any scenario where measured performance data exists, as it is the only one of the two with recorded benchmark results. It delivers a multi-threaded Cinebench R23 score of 8130 and a single-core score of 1797, which positions it above the 50th percentile mark that the Embedded 8645HS currently holds with no scores. The Ryzen AI 5 430 also shows strong Passmark results across compression, encryption, and math workloads, making it the clear choice for general productivity and content creation tasks.

The AMD Ryzen Embedded 8645HS wins in theoretical headroom based on core count and clocks. With 6 cores and 12 threads versus 4 cores and 8 threads, plus a base clock of 4.30 GHz and boost of 5.00 GHz, it should outperform in heavily parallel workloads if benchmarked. Its 45 W TDP allows sustained high-frequency operation, which suits embedded applications requiring consistent throughput rather than burst performance. The Embedded part also offers 20 PCIe Gen 4 lanes, two more than the Ryzen AI 5 430, making it better for systems needing additional I/O connectivity.

The Ryzen AI 5 430 wins on efficiency targets, with a 28 W TDP that suits thin-and-light mobile designs. Its memory support includes both DDR5 and LPDDR5X, providing flexibility for compact devices, while the Embedded 8645HS only supports DDR5. For single-threaded responsiveness, the Ryzen AI 5 430's boost clock of 4.50 GHz, though lower than the Embedded part's 5.00 GHz, still delivers a measured Passmark single-thread score of 3683, which is a solid result for its class.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Embedded 8645HS has 6 cores and 12 threads, while the AMD Ryzen AI 5 430 has 4 cores and 8 threads.

Q: What are the clock speed differences between the two?

A: The Ryzen Embedded 8645HS has a base clock of 4.30 GHz and a boost clock of 5.00 GHz. The Ryzen AI 5 430 has a base clock of 2.00 GHz and a boost clock of 4.50 GHz.

Q: How much L3 cache does each processor have?

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

Q: Which processor supports LPDDR5X memory?

A: Only the AMD Ryzen AI 5 430 supports both DDR5 and LPDDR5X memory types. The Embedded 8645HS supports DDR5 only.

Q: What is the TDP of each processor?

A: The Ryzen AI 5 430 has a TDP of 28 watts, and the Ryzen Embedded 8645HS has a TDP of 45 watts.

Q: Are there recorded benchmark scores for the Embedded 8645HS?

A: No, the database contains no benchmark scores for the Ryzen Embedded 8645HS. Its average benchmark score is listed as 0, and it has no nearest rivals recorded.

Head-to-Head Benchmarks

Direct benchmark comparisons are impossible because the Ryzen Embedded 8645HS has no recorded scores. The Ryzen AI 5 430, however, provides a full set of results that define its performance envelope.

In Cinebench R23 multi-core, the Ryzen AI 5 430 scores 8130. This result, combined with its average benchmark score of 19617, places it in the 73rd percentile of all CPUs. Its nearest rivals in the database are the AMD Ryzen 5 5500 with an average score of 19593 (0.1% lower), the Intel Core i5-12500 at 19668 (0.3% higher), the Intel Core i5-11600KF at 19723 (0.5% higher), and the Intel Core i7-10700F at 19499 (0.6% lower). This means the Ryzen AI 5 430 sits within a tight performance band around these desktop processors, trailing the Intel parts by less than a percentage point while slightly edging out the Ryzen 5 5500.

Single-core performance is equally competitive. The Cinebench R23 single-core score of 1797 and Passmark single-thread score of 3683 confirm strong per-thread capability. The Passmark data breaks down further: integer math hits 39637, floating point math reaches 27193, and extended instructions score 11455. Data compression scores 158912, while encryption manages 7591. Find prime numbers scores 44, random string sorting hits 16623, and physics reaches 726. The multithread Passmark score is 13320.

The only head-to-head comparison available is through the nearest rival data. The Ryzen AI 5 430's average benchmark score of 19617 is nearly identical to the AMD Ryzen 5 5500's 19593, with a delta of just 0.1%. Against the Intel Core i5-12500, the delta is negative 0.3%, meaning the Intel part is slightly faster on average. These deltas are all within a single percentage point, indicating that the Ryzen AI 5 430 performs like a mid-range desktop processor from previous generations.

Specification Differences

The two processors share several specifications: both use AMD Socket FP8, both are dual-channel with 89.6 GB/s memory bandwidth, both support ECC memory, both are active production parts, and neither has an unlocked multiplier. Both are built on TSMC's 4 nm process and both integrate Radeon graphics.

The core counts differ: the Ryzen AI 5 430 has 4 cores and 8 threads, while the Embedded 8645HS has 6 cores and 12 threads. Clock speeds differ substantially, with the Embedded part running a 4.30 GHz base and 5.00 GHz boost versus the Ryzen AI 5 430's 2.00 GHz base and 4.50 GHz boost. TDP is 28 W for the Ryzen AI 5 430 and 45 W for the Embedded part.

Cache configurations differ significantly. The Ryzen AI 5 430 has 80 KB of L1 per core, 1 MB of L2 per core, and 4 MB of L3. The Embedded 8645HS has 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Embedded part also has recorded transistor and die size data: 25,000 million transistors on a 178 mm² die, while the Ryzen AI 5 430 has no such figures listed.

Memory support differs: the Ryzen AI 5 430 supports DDR5 and LPDDR5X, while the Embedded 8645HS supports DDR5 only. PCIe lanes differ: the Ryzen AI 5 430 provides 14 Gen 4 lanes, and the Embedded part provides 20 Gen 4 lanes. Integrated graphics differ, with the Ryzen AI 5 430 using Radeon 840M and the Embedded part using Radeon 760M.

Architecture Differences

The AMD Ryzen AI 5 430 uses the Gorgon Point codename and belongs to the Ryzen AI 400 generation, which combines Zen 5 and Zen 5c cores. This hybrid design likely pairs high-performance Zen 5 cores with efficiency-oriented Zen 5c cores, though the database does not specify the exact core mix. The Embedded 8645HS uses the Hawk Point codename with pure Zen 4 architecture from the Ryzen Embedded 8000 series.

The process node is identical for both: 4 nm at TSMC. However, the transistor counts and die sizes are only recorded for the Embedded part, which lists 25,000 million transistors and a 178 mm² die. The Ryzen AI 5 430 has no transistor or die size data in the database, making a direct physical comparison impossible.

The cache hierarchy reflects the architectural differences. The Ryzen AI 5 430's 80 KB L1 per core is larger than the Embedded part's 64 KB per core, which may benefit single-threaded latency-sensitive workloads. The Embedded 8645HS counters with a much larger 16 MB shared L3 cache versus 4 MB on the Ryzen AI 5 430, which should improve performance in workloads that reuse data across cores.

Integrated graphics differ between the two, with the Ryzen AI 5 430 using Radeon 840M and the Embedded 8645HS using Radeon 760M. Both are mobile segments, but the Radeon 840M is the newer part. The Embedded part's higher TDP of 45 W suggests it can sustain more aggressive power delivery for both CPU and GPU workloads.

The Verdict

The recorded data points clearly to the AMD Ryzen AI 5 430 as the better-characterized and higher-performing processor. Its benchmark scores place it in the 73rd percentile of all CPUs, with an average score of 19617 that rivals desktop processors like the Intel Core i5-12500 and AMD Ryzen 5 5500. The Cinebench R23 multi-core score of 8130 and single-core score of 1797 demonstrate balanced performance across both parallel and single-threaded tasks. For mobile users who need a proven, efficient processor with a 28 W TDP and support for LPDDR5X memory, the Ryzen AI 5 430 is the data-backed choice.

The AMD Ryzen Embedded 8645HS presents a different proposition based on specifications alone. Its 6 cores, 12 threads, 4.30 GHz base clock, 5.00 GHz boost clock, and 16 MB of L3 cache indicate higher theoretical throughput, especially for multi-threaded workloads. The 45 W TDP and 20 PCIe Gen 4 lanes make it suitable for embedded systems that need sustained processing power and expanded I/O. However, the absence of any benchmark scores means the database cannot confirm its real-world performance. Its 50th percentile ranking, which is based on preliminary data, suggests it sits below the Ryzen AI 5 430 in overall standing.

For workloads where measured performance matters, the Ryzen AI 5 430 wins. For embedded applications where core count, clock speed, and L3 cache size are the primary selection criteria, the Ryzen Embedded 8645HS offers a compelling specification sheet, though one that remains unverified by benchmark results. The choice depends on whether the user prioritizes proven performance or theoretical multi-core headroom.