AMD Ryzen 9 8940HX vs AMD Ryzen AI 7 PRO 450 Comparison

The AMD Ryzen 9 8940HX and AMD Ryzen AI 7 PRO 450 are both mobile processors from AMD, but they target very different performance profiles. The 8940HX is a high-core-count enthusiast part built on the Zen 4 architecture, while the AI 7 PRO 450 is a newer Zen 5 design with a focus on efficiency and AI workloads. The benchmark data from the database shows a clear split: the 8940HX dominates multi-threaded and compute-heavy tasks, while the AI 7 PRO 450 counters in a few single-threaded scenarios.

Head-to-Head Benchmarks

The most striking result in the head-to-head comparison is the massive multi-core advantage held by the Ryzen 9 8940HX. In the Cinebench R23 multi-core test, the 8940HX scores 32521 points against the AI 7 PRO 450's 16054, a delta of 102.6%. This performance gap is even more pronounced in Cinebench R15 multi-core, where the 8940HX posts 5355 points versus 2457, translating to a 117.9% lead. These results are directly attributable to the 8940HX's 16 cores and 32 threads versus the 8 cores and 16 threads of the AI 7 PRO 450.

The Ryzen 9 8940HX also wins decisively in every PassMark compute benchmark. In PassMark integer math, the 8940HX scores 189221 against 86227, a 119.4% advantage. Floating point math shows a similar pattern: 113921 versus 52971, a 115.1% lead. The largest delta in the entire dataset appears in PassMark find prime numbers, where the 8940HX scores 251 versus 84, a 198.8% advantage, meaning the 8940HX is nearly three times faster in that specific primality test.

Data compression and encryption workloads heavily favor the 8940HX as well. In PassMark data compression, the 8940HX delivers 650984 points versus 294298, a 121.2% lead. Encryption shows an even wider margin: 39318 versus 14925, a 163.4% advantage. Extended instruction workloads, which often leverage AVX-512 or similar instruction sets, also go to the 8940HX with a 130.1% lead (47802 vs 20778). Random string sorting, a test sensitive to memory latency and cache behavior, shows a 133.1% advantage for the 8940HX (75381 vs 32344).

The PassMark multithread score aggregates overall parallel performance and gives the 8940HX a 100.7% lead (49731 vs 24779), effectively doubling the AI 7 PRO 450's output. The physics test, which simulates rigid-body physics and heavily taxes multi-core scaling, shows a 57.4% advantage for the 8940HX (2104 vs 1337). In total, the 8940HX wins 12 of the 15 head-to-head benchmarks.

The AI 7 PRO 450 does claim three wins, all in single-threaded tests. In Cinebench R23 single-core, the AI 7 PRO 450 scores 2010 versus 1917 for the 8940HX, a 4.6% advantage. This is notable because the AI 7 PRO 450 runs on the newer Zen 5 architecture with a lower 5.10 GHz boost clock compared to the 8940HX's 5.30 GHz, yet it still edges ahead in this workload. The PassMark single-thread test shows a smaller 2% advantage for the AI 7 PRO 450 (3955 vs 3874), and the same result appears in the PassMark singlethread test, which is a duplicate entry in the dataset. In Cinebench R15 single-core, the 8940HX wins narrowly with 292 versus 220, a 32.7% lead, so the AI 7 PRO 450's single-thread superiority is not universal across all test versions.

The Verdict

The data presents a binary choice. The Ryzen 9 8940HX is the clear pick for users who prioritize raw multi-threaded throughput. Its 102.6% lead in Cinebench R23 multi-core and 100.7% lead in PassMark multithread make it the superior processor for rendering, video encoding, scientific simulations, and any workload that can utilize all 16 cores and 32 threads. The 8940HX also holds a 95th percentile ranking among all CPUs in the database, indicating it sits at the top tier of performance.

The Ryzen AI 7 PRO 450, with its 85th percentile ranking, is not a slouch, but its strengths lie elsewhere. Its 4.6% win in Cinebench R23 single-core suggests it has superior per-core IPC efficiency from the Zen 5 architecture. This makes it a better fit for lightly threaded applications such as legacy productivity software, certain CAD tools, or games that rely on a few fast cores. The AI 7 PRO 450 also has a significantly lower 28W TDP versus 55W, which the database shows as a spec difference, but no thermal or power consumption benchmarks are provided in the dataset, so efficiency conclusions must remain qualitative.

For anyone running multi-threaded professional workloads, the 8940HX is the only rational choice from the data. For users who need a capable mobile processor with strong single-thread performance and a newer architecture, the AI 7 PRO 450 is the better fit. The 8940HX also has an unlocked multiplier, while the AI 7 PRO 450 is locked, which matters for overclocking enthusiasts, but the database provides no overclocking benchmark results.

FAQ

Q: Which processor has a higher multi-core Cinebench R23 score?

A: The AMD Ryzen 9 8940HX scores 32521 points, which is 102.6% higher than the AMD Ryzen AI 7 PRO 450's 16054 points.

Q: Does the AMD Ryzen AI 7 PRO 450 win any benchmarks?

A: Yes, it wins three tests: Cinebench R23 single-core (2010 vs 1917), PassMark single-thread (3955 vs 3874), and PassMark singlethread (3955 vs 3874).

Q: What is the largest performance delta between the two processors?

A: The largest delta is in PassMark find prime numbers, where the Ryzen 9 8940HX leads by 198.8% (251 vs 84).

Q: How do the two processors compare in memory bandwidth?

A: The Ryzen AI 7 PRO 450 has a higher rated memory bandwidth at 89.6 GB/s, while the Ryzen 9 8940HX is rated at 83.2 GB/s.

Q: Which processor has a higher boost clock?

A: The Ryzen 9 8940HX has a boost clock of 5.30 GHz, which is higher than the Ryzen AI 7 PRO 450's 5.10 GHz.

Q: What are the core and thread counts for each processor?

A: The Ryzen 9 8940HX has 16 cores and 32 threads, while the Ryzen AI 7 PRO 450 has 8 cores and 16 threads.

Specification Differences

The two processors diverge on nearly every core specification. The Ryzen 9 8940HX features 16 cores and 32 threads, doubling the 8 cores and 16 threads of the AI 7 PRO 450. Base clocks differ as well: the 8940HX runs at 2.40 GHz, while the AI 7 PRO 450 starts at 2.00 GHz. Boost clocks are closer, with the 8940HX at 5.30 GHz and the AI 7 PRO 450 at 5.10 GHz, but the 8940HX still holds the edge.

Thermal design power is a major differentiator. The 8940HX is rated at 55W, nearly double the 28W of the AI 7 PRO 450. This reflects the 8940HX's positioning as a high-performance part in a larger chassis, versus the AI 7 PRO 450's focus on thinner, more power-efficient laptops. The sockets are incompatible: the 8940HX uses AMD Socket FL1, while the AI 7 PRO 450 uses AMD Socket FP8.

The cache hierarchy also differs significantly. The 8940HX has 64 KB of L1 cache per core, 1 MB of L2 per core, and a massive 64 MB of L3 cache. The AI 7 PRO 450 has 80 KB of L1 per core, 1 MB of L2 per core, but only 8 MB of L3 cache. This 56 MB difference in L3 cache is likely a major contributor to the 8940HX's dominance in data compression and random string sorting tests.

Memory support and I/O capabilities differ as well. The 8940HX supports DDR5 only, while the AI 7 PRO 450 supports both DDR5 and LPDDR5X. The AI 7 PRO 450 also supports ECC memory, a feature absent on the 8940HX. PCIe connectivity is another split: the 8940HX offers Gen 5 with 28 lanes, while the AI 7 PRO 450 provides Gen 4 with 16 lanes. The integrated graphics differ, with the 8940HX using Radeon 610M and the AI 7 PRO 450 using the more capable Radeon 860M, though no graphics benchmarks are in the dataset.

The multiplier is unlocked on the 8940HX but locked on the AI 7 PRO 450, and the two have different part numbers: 100-000001849 for the 8940HX and 100-000001865 for the AI 7 PRO 450.

Architecture Differences

The architectural split is fundamental. The Ryzen 9 8940HX is built on the Zen 4 architecture with the codename Dragon Range, while the Ryzen AI 7 PRO 450 uses the Zen 5 architecture with the codename Gorgon Point. The 8940HX is part of the 8000 series and the Ryzen 9 generation, whereas the AI 7 PRO 450 belongs to the Ryzen AI PRO 400 generation, which combines Zen 5 and Zen 5c cores.

Manufacturing processes differ by one node generation. The 8940HX uses a 5 nm process from TSMC, while the AI 7 PRO 450 uses a 4 nm process, also from TSMC. The 8940HX has a reported transistor count of 13,140 million spread across two 71 mm² dies, totaling 142 mm². The AI 7 PRO 450 has a single 195 mm² die, but its transistor count is not listed in the database.

The L1 cache configuration highlights the Zen 5 change: the AI 7 PRO 450 has 80 KB per core versus 64 KB per core on the Zen 4-based 8940HX. The AI 7 PRO 450's smaller 8 MB L3 cache stands in stark contrast to the 8940HX's 64 MB, which is a defining feature of the Dragon Range design for high-core-count workloads.

The integrated graphics also reflect a generational leap. The 8940HX uses Radeon 610M, while the AI 7 PRO 450 uses Radeon 860M, which is a more advanced iGPU, though no graphics benchmarks are provided in this dataset. The AI 7 PRO 450's ECC memory support and LPDDR5X compatibility further position it as a more versatile, modern mobile platform, while the 8940HX leverages its larger cache, more cores, and PCIe Gen 5 for maximum compute throughput.