AMD Ryzen 9 7940HX vs AMD Ryzen AI 5 PRO 435 Comparison

Head-to-Head Benchmarks

The recorded data shows a complete sweep for the AMD Ryzen 9 7940HX across all 11 head-to-head benchmark comparisons. The largest margin appears in Passmark's find prime numbers test, where the Ryzen 9 7940HX scores 273 against 57 for the Ryzen AI 5 PRO 435, a delta of 378.9%. This is the single biggest relative gap in the dataset, reflecting the raw integer throughput advantage of the higher-core-count part.

Data encryption shows the second-largest relative difference. The Ryzen 9 7940HX posts 41,974 versus 11,267, a 272.5% advantage. This workload scales heavily with core count and memory bandwidth, both of which favor the 16-core Dragon Range processor. Integer math follows closely behind at 233.3% ahead, with scores of 202,883 and 60,879 respectively.

Random string sorting shows a 227.9% lead for the Ryzen 9 7940HX, scoring 81,775 against 24,936. Extended instructions deliver a 205.1% gap, with 51,029 versus 16,724. Data compression comes in at 198% ahead, 693,741 versus 232,803. Floating point math is 195.2% higher at 121,383 against 41,114. The multithread composite shows a 178.7% lead, 53,204 versus 19,091. Physics simulation rounds out the double-digit gaps at 130.9%, 2,297 versus 995.

The narrowest margin is in single-thread performance. The Ryzen 9 7940HX scores 3,942 in Passmark's single-thread test, while the Ryzen AI 5 PRO 435 scores 3,757. That is a 4.9% lead. The same delta appears in the duplicate singlethread entry. This small gap matters: it indicates that despite the older Zen 4 architecture and the much larger core configuration, the Ryzen 9 7940HX still holds a measurable single-core edge over the newer Zen 5 part.

Where Each One Wins

The Ryzen 9 7940HX wins every benchmark category in the comparison set. Its strengths are most pronounced in heavily parallel workloads: encryption, integer math, compression, and multithread composites. The 16-core, 32-thread configuration with 64 MB of L3 cache gives it a decisive advantage in any test that can saturate all cores. The data suggests this processor is built for sustained multi-threaded throughput.

The Ryzen AI 5 PRO 435 shows no benchmark wins in the recorded data. Its closest result is single-thread performance, where it trails by only 4.9%. This indicates that its Zen 5 cores are competitive on a per-thread basis, but the 6-core, 12-thread configuration with just 4 MB of L3 cache cannot match the raw parallel output of the Ryzen 9 7940HX.

The percentile rankings reflect the same hierarchy. The Ryzen 9 7940HX sits at the 94th percentile among all CPUs in the database, while the Ryzen AI 5 PRO 435 sits at the 86th percentile. The average benchmark score for the Ryzen 9 7940HX is 69,875, compared to 37,762 for the Ryzen AI 5 PRO 435. That is a substantial gap in aggregate computing capability.

Architecture Differences

The two processors come from different architectural generations and process nodes. The Ryzen 9 7940HX uses Zen 4 architecture on a 5 nm TSMC process, while the Ryzen AI 5 PRO 435 uses Zen 5 / Zen 5c architecture on a 4 nm TSMC process. The Ryzen 9 7940HX is built on the Dragon Range codename, part of the 7000 series. The Ryzen AI 5 PRO 435 uses the Gorgon Point codename, part of the Ryzen AI PRO 400 generation.

Core counts differ dramatically. The Ryzen 9 7940HX has 16 cores and 32 threads. The Ryzen AI 5 PRO 435 has 6 cores and 12 threads. That is a 10-core, 20-thread difference that largely explains the benchmark gaps.

Cache hierarchies are also very different. The Ryzen 9 7940HX has 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of L3. The Ryzen AI 5 PRO 435 has 80 KB of L1 per core, 1 MB of L2 per core, but only 4 MB of L3. The Ryzen 9 7940HX therefore has 60 MB more L3 cache, which benefits workloads with large working sets and frequent data reuse.

Clock speeds favor the Ryzen 9 7940HX. Its base clock is 2.40 GHz with a boost of 5.20 GHz. The Ryzen AI 5 PRO 435 has a 2.00 GHz base and 4.50 GHz boost. The Ryzen 9 7940HX also has a higher TDP at 55 watts versus 28 watts, which allows it to sustain higher clocks under load.

Memory support differs in capacity and speed. Both use dual-channel memory, but the Ryzen 9 7940HX specifies 83.2 GB/s bandwidth with DDR5, while the Ryzen AI 5 PRO 435 specifies 89.6 GB/s with DDR5 and LPDDR5X support. The Ryzen AI 5 PRO 435 also supports ECC memory, which the Ryzen 9 7940HX does not. The newer part has a slightly higher memory bandwidth figure despite the lower core count.

PCIe connectivity also differs. The Ryzen 9 7940HX offers PCIe Gen 5 with 28 lanes, while the Ryzen AI 5 PRO 435 offers PCIe Gen 4 with 14 lanes. Integrated graphics differ as well: the Ryzen 9 7940HX uses Radeon 610M, while the Ryzen AI 5 PRO 435 uses Radeon 840M.

Sockets and production details differ. The Ryzen 9 7940HX uses AMD Socket FL1, the Ryzen AI 5 PRO 435 uses AMD Socket FP8. The Ryzen 9 7940HX has an unlocked multiplier, while the Ryzen AI 5 PRO 435 does not. The Ryzen 9 7940HX has a transistor count of 13,140 million across a 2x 71 mm² die. The Ryzen AI 5 PRO 435 does not have transistor or die size data in the database.

Release dates are far apart. The Ryzen 9 7940HX was released on January 16, 2024. The Ryzen AI 5 PRO 435 has a release date of January 4, 2026. The Ryzen AI 5 PRO 435 is therefore a much newer design, but the data shows that architectural recency does not overcome the core count deficit.

The Verdict

The benchmark data is unambiguous. The AMD Ryzen 9 7940HX outperforms the AMD Ryzen AI 5 PRO 435 in every recorded test. The smallest margin is 4.9% in single-thread performance. The largest margin is 378.9% in prime number finding. The average benchmark score, the percentile rank, and every individual workload point to the same conclusion.

The Ryzen 9 7940HX is the choice for workloads that demand maximum multi-threaded throughput. Its 16 cores, 32 threads, 64 MB of L3 cache, and 5.20 GHz boost clock deliver results that place it at the 94th percentile of all CPUs in the database. Its nearest rivals include the AMD Ryzen 7 9700F at 0.2% behind in average score, the Intel Core i7-14700KF at 0.4% behind, and the AMD Ryzen 9 7950X at 0.5% ahead. The Ryzen 9 7940HX sits in a performance band with some of the strongest desktop parts in the database.

The Ryzen AI 5 PRO 435 is a lower-power, lower-core-count mobile processor. Its 28 watt TDP, 6 cores, 12 threads, and 4 MB of L3 cache place it at the 86th percentile. Its nearest rivals include the AMD Ryzen AI Embedded P132 at 0.1% behind, the Intel Core 5 211E at 0.2% behind, and the AMD Ryzen AI 9 HX 370 at 0.4% ahead. This is a mid-tier mobile part, not a flagship.

For users who need the highest possible CPU performance in a mobile platform, the Ryzen 9 7940HX is the clear pick from the data. For users who prioritize lower power consumption, ECC memory support, and a newer architecture, the Ryzen AI 5 PRO 435 offers those features, but with a substantial performance penalty. The single-thread gap of only 4.9% suggests that the Zen 5 architecture in the Ryzen AI 5 PRO 435 is efficient, but it cannot compensate for the massive core count and cache advantage of the Ryzen 9 7940HX.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 7940HX has 16 cores and 32 threads. The AMD Ryzen AI 5 PRO 435 has 6 cores and 12 threads.

Q: How large is the single-thread performance gap?

A: The Ryzen 9 7940HX scores 3,942 in Passmark's single-thread test, while the Ryzen AI 5 PRO 435 scores 3,757. That is a 4.9% lead for the Ryzen 9 7940HX.

Q: What is the biggest benchmark margin between the two?

A: In Passmark's find prime numbers test, the Ryzen 9 7940HX scores 273 against 57 for the Ryzen AI 5 PRO 435, a 378.9% difference.

Q: Do the two processors use the same architecture?

A: No. The Ryzen 9 7940HX uses Zen 4 architecture on a 5 nm process. The Ryzen AI 5 PRO 435 uses Zen 5 / Zen 5c architecture on a 4 nm process.

Q: Which processor has more L3 cache?

A: The Ryzen 9 7940HX has 64 MB of L3 cache. The Ryzen AI 5 PRO 435 has 4 MB of L3 cache.

Q: Which processor supports ECC memory?

A: The AMD Ryzen AI 5 PRO 435 supports ECC memory. The AMD Ryzen 9 7940HX does not.

Q: How do their average benchmark scores compare?

A: The Ryzen 9 7940HX has an average benchmark score of 69,875. The Ryzen AI 5 PRO 435 has an average benchmark score of 37,762.