AMD Ryzen 5 40 vs AMD Ryzen AI 9 365 Comparison

Head-to-Head Benchmarks

The recorded head-to-head data shows a complete sweep: the AMD Ryzen AI 9 365 wins all 15 benchmark comparisons, with the AMD Ryzen 5 40 taking zero wins. The largest margin is in the PassMark find prime numbers test, where the Ryzen AI 9 365 scores 117 versus 20, a 82.9% advantage. This indicates a massive gap in raw integer iteration capability, which often correlates with heavily threaded math workloads.

Cinebench results reinforce the multi-threaded dominance. In Cinebench R23 multi-core, the Ryzen AI 9 365 posts 18,698 against the Ryzen 5 40's 4,841, a 74.1% deficit for the latter. The single-core version of the same test shows a narrower but still decisive gap: 1,992 versus 1,150, a 42.3% difference. Cinebench R15 multi-core follows the same pattern, with 2,842 versus 790 (72.2% behind), while R15 single-core lands at 303 versus 165.5 (45.4% behind).

PassMark integer math shows the Ryzen AI 9 365 at 101,831 versus 31,598, a 69% lead. Floating point math is even more lopsided: 62,802 versus 15,194, a 75.8% margin. Extended instructions score 25,113 versus 6,437, a 74.4% gap. Data compression favors the Ryzen AI 9 365 at 354,510 versus 141,533, a 60.1% advantage, while data encryption shows 18,297 versus 6,646, a 63.7% lead. Random string sorting lands at 39,447 versus 15,124, a 61.7% gap.

The PassMark multi-thread score puts the Ryzen AI 9 365 at 29,467 versus 9,341, a 68.3% advantage, and the PassMark physics test shows 1,704 versus 432, a 74.6% deficit for the Ryzen 5 40. Single-thread PassMark results close the overall gap somewhat: 3,841 versus 2,477, a 35.5% difference, which is the smallest relative margin across all tests.

The average benchmark score for the Ryzen AI 9 365 is 40,048, placing it in the 87th percentile of all CPUs in the database. The Ryzen 5 40 averages 15,882, which sits in the 70th percentile. The nearest rival to the Ryzen AI 9 365 is the AMD Ryzen 7 7700 at 40,081 (0.1% lower), followed by the Intel Core 5 221E at 40,144 (0.2% lower), the AMD Ryzen 9 270 at 40,246 (0.5% lower), and the Intel Core i9-13905H at 40,313 (0.7% lower). For the Ryzen 5 40, the AMD EPYC 75F3 at 15,859 is only 0.1% higher, the Intel Core Ultra 5 134U at 15,910 is 0.2% higher, the AMD EPYC 9354P at 15,826 is 0.4% lower, and the AMD EPYC 9334 at 15,940 is 0.4% higher.

Where Each One Wins

The AMD Ryzen AI 9 365 wins every measured category in the database, so the use-case split is defined by the magnitude of its advantage rather than any reversal. For lightly threaded tasks, such as the single-core Cinebench and PassMark tests, the Ryzen AI 9 365 leads by roughly 35% to 45%. That gap is large enough to make it the clear choice for everyday responsiveness, application launches, and any workload that depends on a single fast core.

For heavily threaded workloads, the Ryzen AI 9 365's dominance expands. Multi-core Cinebench R23 shows a 74.1% lead, and PassMark multi-thread shows a 68.3% lead. The PassMark physics test, which often stresses parallel integer and floating-point pipelines, shows a 74.6% gap. These numbers indicate that the Ryzen AI 9 365 is substantially better suited for rendering, compilation, data processing, and scientific simulation where core count and throughput matter.

The Ryzen 5 40 does not win a single benchmark, so there is no measured use case where it outperforms the Ryzen AI 9 365. Its only relative strength is the smaller single-thread deficit, meaning it is less badly outclassed in single-core scenarios than in multi-core ones. The data suggests it remains a functional mobile processor for basic tasks, but the Ryzen AI 9 365 is superior across the board.

The percentile placement reinforces this split. The Ryzen AI 9 365 at the 87th percentile sits near the top of the database, while the Ryzen 5 40 at the 70th percentile is comfortably mid-range. In practical terms, the Ryzen AI 9 365 should handle demanding professional workloads without bottlenecking, while the Ryzen 5 40 is better matched to lighter productivity and media consumption.

FAQ

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

A: The AMD Ryzen AI 9 365 scores 18,698, while the AMD Ryzen 5 40 scores 4,841, a 74.1% difference favoring the Ryzen AI 9 365.

Q: How large is the single-thread gap between the two?

A: The Ryzen AI 9 365 leads in Cinebench R23 single-core by 42.3% (1,992 versus 1,150) and in PassMark single-thread by 35.5% (3,841 versus 2,477).

Q: Are there any benchmarks where the Ryzen 5 40 wins?

A: No. The database records 15 head-to-head benchmark comparisons, and the Ryzen AI 9 365 wins all 15.

Q: What is the average benchmark score for each processor?

A: The Ryzen AI 9 365 has an average benchmark score of 40,048, and the Ryzen 5 40 has an average score of 15,882.

Q: How do these processors compare to their nearest rivals?

A: The Ryzen AI 9 365 is nearly identical to the AMD Ryzen 7 7700 (0.1% lower) and the Intel Core 5 221E (0.2% lower). The Ryzen 5 40 is within 0.4% of the AMD EPYC 75F3, Intel Core Ultra 5 134U, AMD EPYC 9354P, and AMD EPYC 9334.

Q: Do both processors support ECC memory?

A: No. Both the Ryzen 5 40 and the Ryzen AI 9 365 have ECC memory support listed as false.

Specification Differences

The two processors differ in nearly every core specification. The Ryzen 5 40 has 4 cores and 8 threads, while the Ryzen AI 9 365 has 10 cores and 20 threads. Base clock speeds differ: 2.80 GHz for the Ryzen 5 40 versus 2.00 GHz for the Ryzen AI 9 365. Boost clocks reverse the order, with the Ryzen 5 40 reaching 4.30 GHz and the Ryzen AI 9 365 hitting 5.00 GHz. Thermal design power is 15 watts for the Ryzen 5 40 and 28 watts for the Ryzen AI 9 365.

The sockets are different: AMD Socket FT6 for the Ryzen 5 40 and AMD Socket FP8 for the Ryzen AI 9 365. Memory support also diverges, with the Ryzen 5 40 using LPDDR5 and the Ryzen AI 9 365 supporting DDR5 and LPDDR5X. Memory bandwidth is close but not identical: 88.0 GB/s for the Ryzen 5 40 versus 89.6 GB/s for the Ryzen AI 9 365. PCIe connectivity differs significantly: the Ryzen 5 40 offers Gen 3 with 4 lanes (CPU only), while the Ryzen AI 9 365 offers Gen 4 with 16 lanes (CPU only).

Integrated graphics are different as well. The Ryzen 5 40 uses Radeon 610M, while the Ryzen AI 9 365 uses Radeon 880M. The release dates are separate: the Ryzen 5 40 was released on 2025-09-30, and the Ryzen AI 9 365 was released on 2024-06-30. The Ryzen AI 9 365 has a listed part number of 100-000001530, while the Ryzen 5 40 has an unknown part number. Neither processor has a launch MSRP in the database, and both have locked multipliers.

Architecture Differences

The architectural split is generational. The Ryzen 5 40 is based on Zen 2 architecture under the Mendocino codename, while the Ryzen AI 9 365 uses Zen 5 architecture under the Strix Point codename. The Ryzen AI 9 365 is part of the Ryzen AI 300 generation, which combines Zen 5 and Zen 5c cores, whereas the Ryzen 5 40 uses a homogeneous Zen 2 design.

Process nodes differ by two steps: the Ryzen 5 40 is built on TSMC's 6 nm process, and the Ryzen AI 9 365 uses TSMC's 4 nm process. Die size reflects the added complexity: the Ryzen 5 40 measures 100 mm², while the Ryzen AI 9 365 measures 233 mm². Cache hierarchies are not comparable. The Ryzen 5 40 has 64 KB of L1 per core, 512 KB of L2 per core, and 4 MB of shared L3. The Ryzen AI 9 365 has 80 KB of L1 per core, 1 MB of L2 per core, and 16 MB of L3.

The Ryzen AI 9 365 also benefits from a larger memory interface in terms of supported types, including LPDDR5X in addition to DDR5, while the Ryzen 5 40 is limited to LPDDR5. The PCIe generation and lane count are substantially higher on the Ryzen AI 9 365, which supports Gen 4 with 16 lanes versus Gen 3 with 4 lanes on the Ryzen 5 40. The integrated GPU upgrade from Radeon 610M to Radeon 880M points to a much more capable graphics solution on the newer part, though the database does not provide separate GPU benchmark scores.

The measured performance deltas align with these architectural differences. The Ryzen AI 9 365's higher core count, larger cache, newer process node, and higher boost clock all contribute to its consistent lead. The Ryzen 5 40 has a higher base clock and lower TDP, which suggests it may be optimized for power efficiency in lighter workloads, but the benchmark data does not show any scenario where that advantage translates into a performance win.