AMD Ryzen 9 9950X vs AMD Ryzen AI 5 PRO 440 Comparison

Head-to-Head Benchmarks

The recorded data places the AMD Ryzen 9 9950X and the AMD Ryzen AI 5 PRO 440 in different performance tiers entirely. Across eleven shared Passmark workloads, the Ryzen 9 9950X wins every single test, with margins ranging from 25.2% to 348.1%. The most lopsided result appears in passmark_find_prime_numbers, where the Ryzen 9 9950X scores 345 against the Ryzen AI 5 PRO 440's 77, a 348.1% advantage. This workload is heavily dependent on integer throughput and cache hierarchy, and the gap confirms the desktop chip's structural superiority.

The multithreaded workloads show the largest absolute separations. In passmark_multithread, the Ryzen 9 9950X records 66030 versus 21054, a 213.6% delta. The passmark_integer_math test shows 242097 against 65991, a 266.9% gap, while passmark_floating_point_math delivers 159063 versus 42934, a 270.5% advantage. The Ryzen 9 9950X also leads passmark_data_compression with 896544 against 256420 (249.6%), passmark_data_encryption with 44366 against 12418 (257.3%), and passmark_extended_instructions with 71564 against 18456 (287.8%). Each of these results scales with core count and memory bandwidth, both of which favor the desktop part.

The narrowest margin is in single-thread performance. The Ryzen 9 9950X posts 4737 in passmark_single_thread, while the Ryzen AI 5 PRO 440 records 3785, a 25.2% lead. This is the only test where the two processors approach parity, though the gap is still substantial. The passmark_physics test shows 3279 versus 1119, a 193% advantage for the Ryzen 9 9950X, and passmark_random_string_sorting shows 94368 versus 27252, a 246.3% delta.

The average benchmark score confirms the separation. The Ryzen 9 9950X averages 74640, while the Ryzen AI 5 PRO 440 averages 41208. The desktop chip sits at the 94th percentile of all CPUs in the database, while the mobile chip sits at the 87th percentile. Even the Ryzen 9 9950X's closest rivals, the AMD Ryzen 7 PRO 9745 at 74761 (-0.2%) and the AMD Ryzen AI 9 HX PRO 475 at 74496 (0.2%), do not meaningfully close the gap. The Ryzen AI 5 PRO 440's nearest rival, the Intel Core Ultra 7 356H, matches it exactly at 41215 (0% delta), placing the mobile chip in a competitive but entirely different performance class.

Where Each One Wins

The Ryzen 9 9950X wins on every metric where raw compute capacity matters. Its 16 cores and 32 threads provide a 2.67x core advantage over the Ryzen AI 5 PRO 440's 6 cores and 12 threads. This translates directly into the passmark_multithread result, where the desktop chip delivers more than three times the score. The 64 MB of L3 cache on the Ryzen 9 9950X, compared to 8 MB on the Ryzen AI 5 PRO 440, explains the massive lead in data-heavy workloads like passmark_data_compression and passmark_random_string_sorting. The desktop chip's higher boost clock of 5.70 GHz, against 4.80 GHz on the mobile chip, contributes to its single-thread lead.

The Ryzen AI 5 PRO 440 has no benchmark wins in this dataset. Its wins are structural rather than performance-based. It operates at a 28 W TDP, compared to 170 W on the Ryzen 9 9950X, which makes it suitable for thermally constrained environments. It uses the AMD Socket FP8, a mobile platform, and supports DDR5 and LPDDR5X memory, while the desktop chip supports DDR5 only. The mobile chip also includes the Radeon 840M integrated graphics, whereas the Ryzen 9 9950X uses the older Radeon Graphics. Neither chip supports 3D V-Cache, so the L3 capacity difference remains the primary cache-based differentiator.

The Ryzen 9 9950X's PCIe implementation is Gen 5 with 24 lanes, while the Ryzen AI 5 PRO 440 uses Gen 4 with 16 lanes. This matters for discrete GPU bandwidth and NVMe storage throughput, though neither chip's benchmark scores directly capture these effects. The desktop part also has an unlocked multiplier, enabling overclocking, while the mobile part is locked.

The Verdict

The benchmark data indicates that the AMD Ryzen 9 9950X is the superior processor for every workload captured in the database. Its 94th percentile ranking, average score of 74640, and clean sweep across all eleven head-to-head tests place it firmly in the high-end desktop segment. The Ryzen AI 5 PRO 440, at the 87th percentile with an average of 41208, is a competent mid-range mobile processor, but it does not compete with the Ryzen 9 9950X on any measured metric.

Users who prioritize multithreaded throughput, data compression, encryption, or extended instruction throughput should select the Ryzen 9 9950X. Its 213.6% lead in passmark_multithread and 287.8% lead in passmark_extended_instructions are decisive. The desktop chip also wins single-thread performance by 25.2%, so there is no workload category where the mobile chip offers an advantage.

The Ryzen AI 5 PRO 440 is the appropriate choice only for systems where power consumption and platform size are the primary constraints. Its 28 W TDP and FP8 socket make it suitable for thin-and-light laptops, and its 87th percentile ranking indicates it outperforms the majority of CPUs in the database. For users who need a mobile processor with Zen 5 architecture and modern memory support, it delivers acceptable performance within its power envelope. But against the Ryzen 9 9950X, the data shows a single-sided contest.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 9950X has 16 cores and 32 threads, while the AMD Ryzen AI 5 PRO 440 has 6 cores and 12 threads.

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

A: The Ryzen 9 9950X scores 4737 in passmark_single_thread, while the Ryzen AI 5 PRO 440 scores 3785, a 25.2% advantage for the desktop chip.

Q: What is the L3 cache capacity difference?

A: The Ryzen 9 9950X has 64 MB of L3 cache, while the Ryzen AI 5 PRO 440 has 8 MB. Neither chip supports 3D V-Cache.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 9950X and the AMD Ryzen AI 5 PRO 440 support ECC memory, and both use dual-channel memory buses with 89.6 GB/s bandwidth.

Q: What are the TDP ratings for each processor?

A: The Ryzen 9 9950X has a TDP of 170 W, while the Ryzen AI 5 PRO 440 has a TDP of 28 W.

Q: Which processor has a higher boost clock?

A: The Ryzen 9 9950X boosts to 5.70 GHz, while the Ryzen AI 5 PRO 440 boosts to 4.80 GHz. The desktop chip also has a higher base clock at 4.30 GHz versus 2.00 GHz.

Architecture Differences

Both processors are built on AMD's Zen 5 architecture and manufactured on TSMC's 4 nm process node, but they target different platforms. The Ryzen 9 9950X uses the Granite Ridge codename and fits the AMD Socket AM5 desktop platform, while the Ryzen AI 5 PRO 440 uses the Gorgon Point codename and fits the AMD Socket FP8 mobile platform. The desktop chip is from the Ryzen 9 series, while the mobile chip belongs to the Ryzen AI PRO 400 series, which combines Zen 5 and Zen 5c cores.

The core configurations diverge sharply. The Ryzen 9 9950X provides 16 cores and 32 threads, while the Ryzen AI 5 PRO 440 provides 6 cores and 12 threads. Both allocate 80 KB of L1 cache and 1 MB of L2 cache per core, but the L3 cache totals differ: 64 MB on the desktop part versus 8 MB on the mobile part. The Ryzen 9 9950X uses two chiplets with a combined die size of 2x 70.6 mm² and 16,630 million transistors. The Ryzen AI 5 PRO 440 uses a monolithic die of 195 mm², with no transistor count recorded in the database.

Memory support differs slightly. The Ryzen 9 9950X supports DDR5 only, while the Ryzen AI 5 PRO 440 supports both DDR5 and LPDDR5X. Both use dual-channel memory buses with identical 89.6 GB/s bandwidth figures. The PCIe implementation also differs: the Ryzen 9 9950X offers Gen 5 with 24 CPU lanes, while the Ryzen AI 5 PRO 440 offers Gen 4 with 16 CPU lanes.

The integrated graphics differ as well. The Ryzen 9 9950X includes Radeon Graphics, while the Ryzen AI 5 PRO 440 includes the Radeon 840M. The desktop chip has an unlocked multiplier, allowing overclocking, while the mobile chip has a locked multiplier. The Ryzen 9 9950X launched on 2024-08-14 with a launch MSRP of $649, while the Ryzen AI 5 PRO 440 launched on 2026-01-04 with no recorded launch MSRP. Both processors remain in active production.