AMD Ryzen 7 8840HX vs AMD Ryzen AI 5 PRO 440 Comparison

The Verdict

The benchmark database positions the AMD Ryzen 7 8840HX as the clear performance leader over the AMD Ryzen AI 5 PRO 440. In every recorded head-to-head benchmark, the 8840HX wins, with 11 wins and 0 losses. The average benchmark score for the 8840HX is 71,797, placing it in the 94th percentile of all CPUs, while the Ryzen AI 5 PRO 440 scores an average of 41,208, placing it in the 87th percentile. The 8840HX sits within a tight cluster of rivals (Intel Core Ultra 7 265KF, Intel Xeon Platinum 8270, Intel Xeon 6517P, Intel Xeon 6724P) with delta percentages ranging from -0.8 to 0.6, indicating it is essentially performance-par with those parts. The Ryzen AI 5 PRO 440 is similarly matched with its nearest rivals (Intel Core Ultra 7 356H, Intel Core Ultra 7 366H, AMD Ryzen 9 5900X, Intel Core Ultra X7 358H) with deltas from -0.4 to 0.6.

For workloads that demand maximum multi-threaded throughput, heavy integer math, or data compression, the Ryzen 7 8840HX is the chip to select. Its 12 cores and 24 threads, combined with 64 MB of shared L3 cache, deliver massive advantages over the 6-core, 12-thread Ryzen AI 5 PRO 440. The data shows the 8840HX leads by 122% in integer math, 102% in floating-point math, and 93.6% in data compression. The Ryzen AI 5 PRO 440, despite its newer Zen 5 architecture, cannot close these gaps in multi-threaded scenarios.

The Ryzen AI 5 PRO 440 is the choice for systems prioritizing efficiency and compact integration. It runs at a 28 W TDP compared to the 8840HX's 55 W TDP, uses a 4 nm process node versus 5 nm, and supports both DDR5 and LPDDR5X memory with ECC support. Its single-thread performance is close to the 8840HX (3,785 versus 3,958, a 4.6% difference), making it a reasonable option for light productivity, but the multi-core deficit dominates any performance discussion. The 8840HX is the pick for raw compute, while the Ryzen AI 5 PRO 440 suits power-constrained designs that prioritize low consumption over peak performance.

FAQ

Q: Which CPU wins in multi-threaded performance?

A: The AMD Ryzen 7 8840HX wins decisively. In the PassMark multithread test, the 8840HX scores 41,732 versus 21,054 for the Ryzen AI 5 PRO 440, a 98.2% advantage.

Q: Is the single-thread performance gap significant?

A: No, it is small. The 8840HX scores 3,958 in PassMark single-thread versus 3,785 for the Ryzen AI 5 PRO 440, a 4.6% difference. Both chips are competitive in lightly threaded tasks.

Q: How do the core counts compare?

A: The 8840HX has 12 cores and 24 threads, while the Ryzen AI 5 PRO 440 has 6 cores and 12 threads. The 8840HX doubles the thread count.

Q: What memory features differ between the two?

A: The 8840HX supports DDR5 with a memory bandwidth of 83.2 GB/s. The Ryzen AI 5 PRO 440 supports DDR5 and LPDDR5X with a higher memory bandwidth of 89.6 GB/s, and it also supports ECC memory, which the 8840HX does not.

Q: Which CPU has a higher boost clock?

A: The 8840HX boosts to 5.10 GHz, while the Ryzen AI 5 PRO 440 boosts to 4.80 GHz. The base clocks are 2.90 GHz and 2.00 GHz, respectively.

Q: How do the integrated graphics units compare?

A: The 8840HX uses the Radeon 610M, while the Ryzen AI 5 PRO 440 uses the Radeon 840M. The database records no benchmark comparison for the integrated graphics units.

Architecture Differences

The two processors belong to different architectural generations. The AMD Ryzen 7 8840HX is based on Zen 4 architecture under the Dragon Range codename and belongs to the 8000 series. It is manufactured on a 5 nm process node by TSMC, with a transistor count of 13,140 million and a die size of 2x 71 mm² (dual-die design). The 8840HX uses 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of shared L3 cache. It fits the AMD Socket FL1 and has an unlocked multiplier.

The AMD Ryzen AI 5 PRO 440 uses Zen 5 architecture (with Zen 5c cores) under the Gorgon Point codename, belonging to the Ryzen AI PRO 400 series. It is built on a 4 nm process node by TSMC, with a die size of 195 mm² (single-die design). The transistor count is not recorded in the database. The cache layout differs: 80 KB of L1 cache per core, 1 MB of L2 cache per core, and only 8 MB of L3 cache. It uses AMD Socket FP8 and has a locked multiplier.

The L3 cache difference is substantial: 64 MB on the 8840HX versus 8 MB on the Ryzen AI 5 PRO 440. This 8x disparity explains part of the large multi-threaded performance gap, especially in workloads that benefit from large shared caches. The 8840HX's dual-die design with 5 nm process contrasts with the AI 5 PRO's single-die 4 nm process, which is denser but carries far less L3 cache.

The PCIe support also differs. The 8840HX provides PCIe Gen 5 with 28 lanes (CPU only), while the Ryzen AI 5 PRO 440 provides PCIe Gen 4 with 16 lanes (CPU only). The newer architecture of the AI 5 PRO 440 does not offset its reduced core count and cache size in the recorded benchmarks.

Specification Differences

The two processors differ across nearly every major specification field. The 8840HX has 12 cores and 24 threads versus 6 cores and 12 threads on the AI 5 PRO 440. Base clocks are 2.90 GHz versus 2.00 GHz, and boost clocks are 5.10 GHz versus 4.80 GHz. The TDP is 55 W versus 28 W, a substantial power envelope difference that aligns with the performance gap.

Process node is 5 nm versus 4 nm, with the 8840HX using a dual-die layout (2x 71 mm²) and the AI 5 PRO 440 using a single 195 mm² die. Transistor count is 13,140 million for the 8840HX; no figure is recorded for the AI 5 PRO 440. Cache: L1 is 64 KB per core versus 80 KB per core, L2 is 1 MB per core for both, and L3 is 64 MB shared versus 8 MB. Memory support: DDR5 versus DDR5 and LPDDR5X. Memory bandwidth: 83.2 GB/s versus 89.6 GB/s. ECC memory: not supported versus supported. PCIe: Gen 5 with 28 lanes versus Gen 4 with 16 lanes. Integrated graphics: Radeon 610M versus Radeon 840M. Sockets: AMD Socket FL1 versus AMD Socket FP8. The multiplier is unlocked on the 8840HX and locked on the AI 5 PRO 440.

Release dates differ: the 8840HX launched on 2025-04-22, while the AI 5 PRO 440 launched on 2026-01-04. Neither has a recorded launch MSRP. Both are active in production and target the mobile market segment.

Head-to-Head Benchmarks

The head-to-head data is one-sided. The Ryzen 7 8840HX wins all 11 recorded benchmarks, with the smallest margin being 4.6% in both PassMark single-thread and singlethread tests (3,958 versus 3,785). The largest margin is in PassMark find prime numbers, where the 8840HX scores 304 versus 77, a 294.8% advantage. This indicates a massive lead in integer-heavy prime-search workloads.

In PassMark data compression, the 8840HX scores 496,427 versus 256,420, a 93.6% delta. Data encryption shows 29,919 versus 12,418, a 140.9% delta. Extended instructions score 36,527 versus 18,456, a 97.9% delta. Floating-point math: 86,747 versus 42,934, a 102% delta. Integer math: 146,506 versus 65,991, a 122% delta. Multithread: 41,732 versus 21,054, a 98.2% delta. Physics: 2,185 versus 1,119, a 95.3% delta. Random string sorting: 57,971 versus 27,252, a 112.7% delta.

The single-thread results are the only close contest. The 8840HX leads by just 173 points, confirming that per-core performance is similar despite the architectural differences. However, the multi-threaded and math-heavy workloads show advantages ranging from roughly 94% to 295%, driven primarily by the 8840HX's 2x core/thread count and 8x L3 cache. The AI 5 PRO 440's higher memory bandwidth (89.6 GB/s versus 83.2 GB/s) does not translate into any benchmark win.

Where Each One Wins

The Ryzen 7 8840HX wins every recorded benchmark category. It is the clear choice for multi-threaded rendering workloads, as evidenced by the 98.2% multithread advantage and 95.3% physics advantage. Data-heavy tasks such as compression (93.6% lead) and encryption (140.9% lead) also strongly favor the 8840HX. Integer and floating-point math workloads show 122% and 102% leads, respectively. The 8840HX's 12 cores and 64 MB L3 cache make it suitable for content creation, scientific computation, and any parallel workload where the 55 W TDP is acceptable.

The Ryzen AI 5 PRO 440 has no benchmark wins in the database. Its strengths are qualitative: a lower 28 W TDP, support for LPDDR5X memory, ECC memory support, and a smaller 4 nm process node. These features suggest it fits in power-sensitive mobile designs where battery life and thermal limits matter more than peak compute. Its single-thread score (3,785) trails by only 4.6%, so everyday responsiveness would be close, but any sustained multi-core load will fall far behind the 8840HX.

The 8840HX also holds the advantage in platform connectivity with PCIe Gen 5 and 28 lanes versus Gen 4 and 16 lanes. The AI 5 PRO 440 offers a newer Zen 5 core architecture and a higher memory bandwidth figure, but the recorded data shows no performance benefit from those traits. For users who must choose strictly on benchmark performance, the 8840HX is the only option that wins. For users who prioritize efficiency, memory flexibility (LPDDR5X, ECC), and a newer process node, the AI 5 PRO 440 remains a viable alternative, but it cannot match the 8840HX in any measured compute task.