AMD Ryzen 5 40 vs Intel Core Ultra X7 358H Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the AMD Ryzen 5 40 and the Intel Core Ultra X7 358H. Across all 15 head-to-head benchmark comparisons, the Intel part claims victory, with the AMD processor failing to secure a single win. The largest margins appear in heavily multithreaded workloads, while the smallest gaps occur in single-threaded tests.

In Cinebench R23 multicore, the Intel Core Ultra X7 358H scores 18,747 against the AMD Ryzen 5 40's 4,841, a delta of -74.2%. The Cinebench R15 multicore test tells a similar story: Intel scores 3,027 versus AMD's 790, a -73.9% difference. These results indicate that the Intel processor delivers more than three times the multi-threaded rendering performance in both Cinebench versions.

The single-core picture is closer but still favors Intel decisively. In Cinebench R23 single-core, Intel scores 2,080 while AMD manages 1,150, a -44.7% delta. Cinebench R15 single-core shows 301.5 for Intel against 165.5 for AMD, a -45.1% gap. The PassMark single-thread test records 4,124 for Intel versus 2,477 for AMD, the smallest margin on the board at -39.9%.

The most extreme disparity appears in PassMark's find prime numbers test. Intel scores 337, AMD scores 20, a -94.1% delta. This suggests the Intel part handles integer-heavy prime enumeration with dramatically higher efficiency. Floating point math shows a similar pattern: Intel records 103,842 against AMD's 15,194, a -85.4% difference. Physics simulation in PassMark also favors Intel heavily, with 3,021 versus 432, a -85.7% delta.

Encryption workloads favor Intel by -74.5%, with scores of 26,046 and 6,646 respectively. Extended instruction sets show a -76.4% gap, with Intel at 27,274 and AMD at 6,437. Data compression tests record -57.4%, with Intel at 332,508 and AMD at 141,533. Integer math shows -62%, with Intel at 83,147 and AMD at 31,598. Random string sorting delivers -62.5%, at 40,357 versus 15,124. The multithread benchmark records -72.4%, with Intel at 33,802 and AMD at 9,341.

The average benchmark score for the Intel part is 40,967, placing it at the 87th percentile of all CPUs in the database. The AMD part averages 15,882, at the 70th percentile. The nearest rivals for Intel include the AMD Ryzen AI 5 PRO 440 at 41,208 (-0.6%), the Intel Core Ultra 7 356H at 41,215 (-0.6%), the AMD Ryzen AI 5 PRO 435G at 40,718 (+0.6%), and the Intel Core Ultra 7 366H at 41,263 (-0.7%). For AMD, the nearest rivals are the AMD EPYC 75F3 at 15,859 (+0.1%), the Intel Core Ultra 5 134U at 15,910 (-0.2%), the AMD EPYC 9354P at 15,826 (+0.4%), and the AMD EPYC 9334 at 15,940 (-0.4%).

Where Each One Wins

The Intel Core Ultra X7 358H wins every recorded benchmark category. Its dominance is most pronounced in PassMark find prime numbers, floating point math, physics, extended instructions, and encryption, where deltas exceed -74%. These results indicate a processor suited to scientific computation, simulation, and cryptographic workloads. The Cinebench multicore scores confirm strength in rendering and video encoding tasks that scale across cores.

The AMD Ryzen 5 40 shows no benchmark wins in the database. However, the data reveals where the gap narrows. The smallest deltas appear in PassMark single-thread (-39.9%) and Cinebench R23 single-core (-44.7%). This suggests that for lightly threaded tasks such as basic office productivity, web browsing, or legacy application compatibility, the AMD part is comparatively less disadvantaged. Still, even in these tests, Intel maintains a clear lead.

For workloads that emphasize raw multithreaded throughput, the Intel part's 16 cores and 16 threads provide a substantial structural advantage over AMD's 4 cores and 8 threads. The PassMark multithread score of 33,802 versus 9,341 reflects this core count disparity. Similarly, the L3 cache difference of 18 MB shared versus 4 MB shared contributes to the Intel advantage in cache-sensitive workloads.

The AMD processor's integrated Radeon 610M graphics may offer a different balance for certain mobile tasks, but the benchmark database does not include graphics tests. All recorded CPU benchmarks favor Intel. For users focused purely on processor-bound tasks, the Intel part is the clear performer in every measured category.

The Verdict

The data supports a straightforward conclusion: the Intel Core Ultra X7 358H outperforms the AMD Ryzen 5 40 across every benchmark in the database. Users requiring maximum multi-core performance for rendering, simulation, encryption, or compilation should select the Intel part. Its 16-core, 16-thread configuration, combined with a 4.80 GHz boost clock and 18 MB L3 cache, delivers scores that are 39.9% to 94.1% higher depending on the workload.

The AMD Ryzen 5 40 remains a functional processor for basic mobile computing, with its 4 cores, 8 threads, and 4.30 GHz boost clock. Its 70th percentile standing shows it outperforms a majority of CPUs in the database, but it cannot compete with Intel's 87th percentile ranking. For users who prioritize single-threaded responsiveness in a low-power package, the AMD part offers a 15 W TDP against Intel's 25 W TDP, which may translate to longer battery life in mobile devices. The database does not include power efficiency benchmarks, so this remains a qualitative observation.

Neither processor carries a launch MSRP in the database, so no pricing analysis is possible. The Intel part's higher average score, superior percentile ranking, and unanimous benchmark wins make it the recommended choice for performance-oriented buyers. The AMD part suits scenarios where lower power consumption and a 6 nm process node are prioritized over raw throughput.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core Ultra X7 358H boosts to 4.80 GHz, while the AMD Ryzen 5 40 boosts to 4.30 GHz.

Q: How many cores and threads does each processor have?

A: The AMD Ryzen 5 40 has 4 cores and 8 threads. The Intel Core Ultra X7 358H has 16 cores and 16 threads.

Q: What is the process node for each processor?

A: The AMD Ryzen 5 40 uses a 6 nm process from TSMC. The Intel Core Ultra X7 358H uses a 3 nm process from Intel.

Q: Which processor has the larger L3 cache?

A: The Intel Core Ultra X7 358H has 18 MB shared L3 cache. The AMD Ryzen 5 40 has 4 MB shared L3 cache.

Q: What memory types do the two processors support?

A: The AMD Ryzen 5 40 supports LPDDR5 with dual-channel memory and 88.0 GB/s bandwidth. The Intel Core Ultra X7 358H supports LPDDR5X with dual-channel memory and 153.6 GB/s bandwidth.

Q: What is the PCIe version for each processor?

A: The AMD Ryzen 5 40 uses PCIe Gen 3 with 4 lanes (CPU only). The Intel Core Ultra X7 358H uses PCIe Gen 5 with 4 lanes (CPU only).

Architecture Differences

The two processors represent fundamentally different design approaches. The AMD Ryzen 5 40 is built on the Zen 2 architecture with the Mendocino codename, using a 6 nm process from TSMC. The die size measures 100 mm². The Intel Core Ultra X7 358H uses the Panther Lake codename with a 3 nm process from Intel, and no die size is recorded in the database.

Cache hierarchies differ significantly. The AMD part provides 64 KB L1 per core, 512 KB L2 per core, and 4 MB shared L3. The Intel part provides 192 KB L1 per core, 3 MB L2 per core, and 18 MB shared L3. The Intel L2 cache is six times larger per core, and its L3 cache is 4.5 times larger overall.

The integrated graphics also differ. AMD pairs the Ryzen 5 40 with Radeon 610M graphics. Intel pairs the Core Ultra X7 358H with Arc B390 graphics. Both target the mobile market segment, and both are currently active in production. The AMD release date is recorded as September 30, 2025, while the Intel release date is January 4, 2026.

The Intel part belongs to the Core Ultra Series 3, with the generation listed as Ultra X7 (Panther Lake-H). The AMD generation is listed as Ryzen 5 (Zen 2 (Mendocino)). Neither processor has an unlocked multiplier, and neither supports ECC memory. The Intel part has a recorded part number of SA4RAQ9ET, while the AMD part number is listed as unknown.

Specification Differences

The core and thread counts differ substantially. AMD offers 4 cores and 8 threads, while Intel offers 16 cores and 16 threads. Base clocks also differ: AMD runs at 2.80 GHz, Intel at 1.90 GHz. Boost clocks favor Intel at 4.80 GHz versus AMD's 4.30 GHz. The Intel part has a higher TDP of 25 W against AMD's 15 W.

Socket types are incompatible. AMD uses the AMD Socket FT6, while Intel uses the Intel BGA 2540. Memory support differs by generation: AMD supports LPDDR5, Intel supports LPDDR5X. Memory bandwidth is nearly double on Intel at 153.6 GB/s versus 88.0 GB/s. PCIe generation differs as well, with AMD on Gen 3 and Intel on Gen 5, both limited to 4 CPU lanes.

The process node and foundry differ. AMD uses 6 nm TSMC, Intel uses 3 nm Intel. L1 and L2 cache sizes per core are larger on Intel, as is the shared L3 cache. The integrated graphics units are different models. The database records no launch MSRP for either processor, and neither has an unlocked multiplier.