AMD Ryzen 9 7940HX vs AMD Ryzen AI 5 430 Comparison

Head-to-Head Benchmarks

The benchmark data presents a decisive performance gap between the AMD Ryzen 9 7940HX and the AMD Ryzen AI 5 430. Across every recorded test, the Ryzen 9 7940HX takes the win, totaling 13 victories with zero wins for the Ryzen AI 5 430. The margins, however, vary substantially depending on the workload type.

The largest divergence appears in multi-threaded and parallel workloads. In the Cinebench R23 multicore test, the Ryzen 9 7940HX scores 29400 against 8130 for the Ryzen AI 5 430, a 261.6% advantage. PassMark multithread results show a similar pattern: 53204 versus 13320, representing a 299.4% lead.

Integer math operations favor the Ryzen 9 7940HX heavily. The PassMark integer math score of 202883 dwarfs the Ryzen AI 5 430's 39637, a 411.9% difference. Floating point math follows with 121383 against 27193, a 346.4% margin. The prime number finding test shows the widest gap of all, with 273 versus 44, a 520.5% difference.

Data encryption performance shows the Ryzen 9 7940HX at 41974 against 7591, a 452.9% lead, while data compression yields 693741 versus 158912, a 336.6% advantage. Extended instruction workloads record 51029 for the Ryzen 9 7940HX and 11455 for the Ryzen AI 5 430, a 345.5% gap. Random string sorting delivers 81775 versus 16623, a 391.9% difference.

The physics test in PassMark shows 2297 for the Ryzen 9 7940HX versus 726 for the Ryzen AI 5 430, a 216.4% margin. This is the smallest proportional difference among the multi-threaded tests, yet still a substantial lead.

Single-threaded performance tells a different story, with much narrower margins. The Cinebench R23 single-core test records 1807 for the Ryzen 9 7940HX and 1797 for the Ryzen AI 5 430, a mere 0.6% difference. PassMark single-thread results show 3942 versus 3683, a 7% advantage for the Ryzen 9 7940HX. These figures indicate that the two processors are nearly equivalent in lightly threaded workloads, with the Ryzen AI 5 430's newer architecture partially compensating for its lower core count.

The average benchmark scores frame the overall picture. The Ryzen 9 7940HX posts an average benchmark score of 69875, placing it in the 94th percentile among all CPUs. The Ryzen AI 5 430 averages 19617, landing in the 73rd percentile.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 9 7940HX has an average benchmark score of 69875, while the AMD Ryzen AI 5 430 averages 19617. The Ryzen 9 7940HX also sits in the 94th percentile versus the 73rd percentile for the Ryzen AI 5 430.

Q: How do the two compare in single-threaded performance?

A: The Ryzen 9 7940HX leads slightly. In Cinebench R23 single-core, it scores 1807 versus 1797, a 0.6% margin. In PassMark single-thread, it scores 3942 versus 3683, a 7% lead.

Q: Which processor handles multi-threaded workloads better?

A: The Ryzen 9 7940HX is significantly stronger. Cinebench R23 multicore shows 29400 versus 8130, a 261.6% difference. PassMark multithread shows 53204 versus 13320, a 299.4% advantage.

Q: What is the core and thread configuration of each processor?

A: The Ryzen 9 7940HX has 16 cores and 32 threads. The Ryzen AI 5 430 has 4 cores and 8 threads.

Q: Which processor has more L3 cache?

A: The Ryzen 9 7940HX has 64 MB of L3 cache. The Ryzen AI 5 430 has 4 MB of L3 cache.

Q: Do both processors support ECC memory?

A: No. The Ryzen AI 5 430 supports ECC memory, while the Ryzen 9 7940HX does not.

Architecture Differences

The two processors come from different architectural generations and manufacturing processes. The Ryzen 9 7940HX uses the Zen 4 architecture under the Dragon Range codename, while the Ryzen AI 5 430 uses the Zen 5 / Zen 5c architecture under the Gorgon Point codename. This places the Ryzen AI 5 430 in a newer architectural family, with the Ryzen 9 7940HX in the 7000 series and the Ryzen AI 5 430 in the Ryzen AI 400 generation.

Manufacturing technology differs as well. The Ryzen 9 7940HX is built on a 5 nm process node at TSMC, while the Ryzen AI 5 430 uses a 4 nm process node, also at TSMC. The Ryzen 9 7940HX contains 13,140 million transistors across a die size of 2x 71 mm². The transistor count and die size for the Ryzen AI 5 430 are not recorded in the database.

Cache hierarchies diverge notably. The Ryzen 9 7940HX provides 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. The Ryzen AI 5 430 provides 80 KB of L1 cache per core, 1 MB of L2 cache per core, and only 4 MB of L3 cache. The larger L1 allocation per core on the Ryzen AI 5 430 reflects its newer core design, but the drastically smaller L3 pool limits its aggregate data buffering capacity.

Memory support also differs. The Ryzen 9 7940HX supports DDR5 memory only, while the Ryzen AI 5 430 supports both DDR5 and LPDDR5X. Both use dual-channel memory buses. The Ryzen 9 7940HX records a memory bandwidth of 83.2 GB/s, while the Ryzen AI 5 430 records 89.6 GB/s, slightly higher despite the smaller core count.

PCIe connectivity rules out any equivalence. The Ryzen 9 7940HX provides Gen 5 with 28 lanes (CPU only), while the Ryzen AI 5 430 provides Gen 4 with 14 lanes (CPU only). This gives the Ryzen 9 7940HX twice the lane count and a newer PCIe generation.

Integrated graphics differ as well. The Ryzen 9 7940HX includes a Radeon 610M, while the Ryzen AI 5 430 includes a Radeon 840M. The sockets are not interchangeable: the Ryzen 9 7940HX uses AMD Socket FL1, and the Ryzen AI 5 430 uses AMD Socket FP8.

The multiplier status also separates the two. The Ryzen 9 7940HX has an unlocked multiplier, while the Ryzen AI 5 430 is locked.

Specification Differences

The two processors differ in nearly every measured specification field.

The Ryzen 9 7940HX has 16 cores and 32 threads, while the Ryzen AI 5 430 has 4 cores and 8 threads. Base clocks are 2.40 GHz for the Ryzen 9 7940HX and 2.00 GHz for the Ryzen AI 5 430. Boost clocks are 5.20 GHz versus 4.50 GHz. Thermal design power is 55 W for the Ryzen 9 7940HX and 28 W for the Ryzen AI 5 430.

The Ryzen 9 7940HX uses AMD Socket FL1, while the Ryzen AI 5 430 uses AMD Socket FP8. The process node is 5 nm for the Ryzen 9 7940HX and 4 nm for the Ryzen AI 5 430. The transistor count of 13,140 million is recorded only for the Ryzen 9 7940HX; no figure exists for the Ryzen AI 5 430 in the database.

L1 cache per core is 64 KB on the Ryzen 9 7940HX versus 80 KB on the Ryzen AI 5 430. L2 cache per core is identical at 1 MB. L3 cache is 64 MB versus 4 MB.

Memory support shows DDR5 for the Ryzen 9 7940HX and DDR5, LPDDR5X for the Ryzen AI 5 430. Memory bandwidth is 83.2 GB/s versus 89.6 GB/s. ECC memory support is false for the Ryzen 9 7940HX and true for the Ryzen AI 5 430.

PCIe configuration is Gen 5 with 28 lanes on the Ryzen 9 7940HX versus Gen 4 with 14 lanes on the Ryzen AI 5 430. Integrated graphics are Radeon 610M versus Radeon 840M. The multiplier is unlocked on the Ryzen 9 7940HX and locked on the Ryzen AI 5 430.

Release dates differ by nearly two years. The Ryzen 9 7940HX was released on 2024-01-16, and the Ryzen AI 5 430 on 2026-01-04.

Where Each One Wins

The Ryzen 9 7940HX wins in every recorded benchmark category. Its strongest areas are multi-threaded compute workloads where the core count advantage is fully utilized. The 16-core, 32-thread configuration delivers 261.6% higher Cinebench R23 multicore scores and 299.4% higher PassMark multithread scores.

Encryption and compression workloads show the largest gaps. Data encryption runs 452.9% faster on the Ryzen 9 7940HX, and data compression runs 336.6% faster. These tasks scale with both core count and cache size, and the 64 MB L3 cache on the Ryzen 9 7940HX provides substantial working space.

The Ryzen AI 5 430 shows competitive single-threaded performance despite its larger deficit elsewhere. In Cinebench R23 single-core, it trails by only 0.6%, and in PassMark single-thread by 7%. This indicates that the newer Zen 5 / Zen 5c architecture delivers strong per-core efficiency, even if the lower core count limits aggregate throughput.

The Ryzen AI 5 430 also offers advantages in platform features that do not appear in benchmark scores. It supports ECC memory, which the Ryzen 9 7940HX does not. It supports LPDDR5X memory in addition to DDR5, and it records a higher memory bandwidth of 89.6 GB/s versus 83.2 GB/s. Its integrated Radeon 840M is a newer graphics solution than the Radeon 610M in the Ryzen 9 7940HX.

Power efficiency also favors the Ryzen AI 5 430. Its 28 W TDP is substantially lower than the 55 W TDP of the Ryzen 9 7940HX, and its 4 nm process node is smaller than the 5 nm node used by the older chip.

The Verdict

The recorded data supports a clear split based on workload requirements. The AMD Ryzen 9 7940HX is the stronger processor for compute-heavy tasks that use many threads. Its 16 cores and 32 threads produce benchmark scores that are 216.4% to 520.5% higher than the Ryzen AI 5 430 across multi-threaded tests. The 64 MB L3 cache and Gen 5 PCIe with 28 lanes further position it for demanding applications that benefit from large data buffers and high-bandwidth connectivity.

The AMD Ryzen AI 5 430 is not without merit. Its single-threaded performance nearly matches the Ryzen 9 7940HX, with a 0.6% gap in Cinebench R23 and a 7% gap in PassMark. It supports ECC memory, offers LPDDR5X compatibility, and draws less power at 28 W. Its 4 nm process node and newer architecture suggest efficiency-focused designs.

For users prioritizing raw throughput in rendering, encryption, compression, or other parallel workloads, the Ryzen 9 7940HX is the clear choice based on every recorded benchmark. For users who need ECC memory support, lower power consumption, or a newer integrated graphics solution, the Ryzen AI 5 430 offers those features, albeit with substantially lower multi-threaded performance.

The percentile rankings summarize the positioning. The Ryzen 9 7940HX sits in the 94th percentile of all CPUs, while the Ryzen AI 5 430 sits in the 73rd. The average benchmark scores of 69875 versus 19617 reflect a processor that is designed for different tiers of mobile computing. The Ryzen 9 7940HX belongs to the high-performance segment, and the Ryzen AI 5 430 to the efficiency-focused segment.