AMD Ryzen 9 9850HX vs Intel Core Ultra 7 356H Comparison

AMD Ryzen 9 9850HX and Intel Core Ultra 7 356H represent two distinct approaches to mobile processing, with the AMD part aiming at maximum throughput and the Intel part focusing on efficiency within a lower power envelope. The recorded data from the database shows a clear performance hierarchy, but the margins and specific workloads reveal a more nuanced picture than a simple overall winner.

Head-to-Head Benchmarks

The PassMark suite of tests provides a direct comparison across eleven workloads. The AMD Ryzen 9 9850HX wins ten of these eleven matchups, often by substantial margins. The largest gap appears in integer math, where the AMD part scores 172943 against the Intel's 83111, a delta of 108.1%. This indicates a massive advantage in general-purpose arithmetic and logic operations, which are fundamental to most productivity applications.

Data compression shows the second-largest delta, with the AMD part at 662381 versus the Intel at 336177, a 97% difference. This suggests the AMD chip handles archival tasks and database workloads with far greater speed. Extended instructions also favor AMD heavily, with a score of 53817 against 27898, a 92.9% delta, indicating a strong lead in specialized instruction sets like AES and SHA.

The multithread test, which reflects overall parallel processing capability, shows AMD at 51722 versus Intel at 33978, a 52.2% delta. This is a significant lead, though not as dramatic as the integer or compression results. Random string sorting follows a similar pattern, with AMD at 70175 and Intel at 40990, a 71.2% delta, which points to superior handling of sorting and data organization tasks.

The AMD part also wins in floating-point math, scoring 115062 against 103128, an 11.6% advantage. This is a closer margin, suggesting the Intel part is more competitive in scientific and 3D rendering workloads that rely on floating-point calculations. Data encryption shows AMD ahead at 32139 versus 26345, a 22% delta, which is a moderate lead in a security-sensitive workload.

Single-thread performance, a key metric for legacy applications and responsiveness, shows AMD at 4461 versus Intel at 4072, a 9.6% delta. This is a solid but not overwhelming lead, indicating the AMD core is faster on a per-thread basis. Physics calculations, which simulate real-world interactions, show AMD at 3054 versus Intel at 2895, a 5.5% delta, the smallest AMD win in the suite.

The single Intel win comes in the find prime numbers test, where the Intel part scores 327 against AMD's 323, a delta of -1.2%. This is a narrow victory, but it shows the Intel chip has a slight edge in this specific algorithmic workload, which involves iterative division and modular arithmetic.

Overall, the head-to-head data confirms the AMD Ryzen 9 9850HX as the dominant performer in this comparison. The average benchmark score for the AMD part is 106413, placing it in the 97th percentile of all CPUs, while the Intel part averages 41215, sitting in the 87th percentile. The AMD's nearest rivals in the database, such as the Intel Xeon w7-3555, have an average score of 106192, a 0.2% delta, showing the AMD part is competitive with workstation-class silicon.

The Verdict

The benchmark data indicates that the AMD Ryzen 9 9850HX is the superior choice for raw performance. Its 12 cores and 24 threads, combined with a boost clock of 5.20 GHz, deliver results that are decisively ahead of the Intel Core Ultra 7 356H in nearly every measured workload. The AMD part's 97th percentile ranking versus the Intel's 87th percentile confirms its higher standing in the broader CPU landscape.

The Intel Core Ultra 7 356H, with its 16 cores and 16 threads, does not translate its higher core count into a performance win. The lack of simultaneous multithreading appears to limit its parallel throughput, as shown by the 52.2% deficit in the multithread test. The Intel part's single win in prime number finding is an outlier, not a trend.

From a performance standpoint, the AMD Ryzen 9 9850HX is the clear choice for users who prioritize computation speed. The Intel part's lower TDP of 25 watts versus the AMD's 55 watts suggests it might be more efficient, but the recorded data does not include power consumption measurements, so efficiency cannot be quantified here. The data shows a pure performance split: AMD wins nearly everything, and by wide margins in several key tests.

For workloads like video encoding, software compilation, data analysis, and 3D rendering, the AMD part's leads in integer math, multithread, and extended instructions make it the logical pick. The Intel part's only advantage, a 1.2% win in prime number finding, is too narrow and too specialized to recommend it for any general-purpose task.

FAQ

Q: Which processor has a higher single-thread score?

A: The AMD Ryzen 9 9850HX scores 4461 in the PassMark single-thread test, while the Intel Core Ultra 7 356H scores 4072, a 9.6% advantage for AMD.

Q: How much faster is the AMD part in multithreaded workloads?

A: The AMD Ryzen 9 9850HX scores 51722 in the multithread test versus 33978 for the Intel Core Ultra 7 356H, which is a 52.2% delta in favor of AMD.

Q: Does the Intel processor win any benchmark in this comparison?

A: Yes, the Intel Core Ultra 7 356H wins the find prime numbers test with a score of 327, compared to the AMD's 323, a delta of -1.2%.

Q: What is the largest performance gap between the two?

A: The largest gap is in integer math, where the AMD Ryzen 9 9850HX scores 172943 against the Intel's 83111, a 108.1% delta.

Q: How do their overall average scores compare?

A: The AMD Ryzen 9 9850HX has an average benchmark score of 106413, while the Intel Core Ultra 7 356H has an average of 41215.

Q: What is the difference in their CPU percentile rankings?

A: The AMD Ryzen 9 9850HX ranks in the 97th percentile of all CPUs, whereas the Intel Core Ultra 7 356H ranks in the 87th percentile.

Specification Differences

The two processors differ in several core specifications. The AMD Ryzen 9 9850HX has 12 cores and 24 threads, while the Intel Core Ultra 7 356H has 16 cores and 16 threads. The base clock of the AMD part is 3.00 GHz, compared to 1.90 GHz for the Intel part. The boost clock is 5.20 GHz for AMD and 4.70 GHz for Intel.

Thermal design power differs significantly: the AMD part has a TDP of 55 watts, and the Intel part has a TDP of 25 watts. The AMD processor uses the AMD Socket FL1, while the Intel processor uses the Intel BGA 2540 socket. The AMD part's multiplier is unlocked, while the Intel part's multiplier is locked.

Memory support differs, with the AMD part supporting DDR5 only, while the Intel part supports DDR5 and LPDDR5X. Memory bandwidth is higher on the Intel part at 115.2 GB/s versus 89.6 GB/s for AMD. ECC memory support is present on the AMD part but absent on the Intel part. PCIe lane counts also differ, with AMD offering Gen 5 with 28 lanes and Intel offering Gen 5 with 12 lanes.

Architecture Differences

The architectural designs are fundamentally different. The AMD Ryzen 9 9850HX is built on the Zen 5 architecture, codenamed Fire Range, and is part of the 9000 series. It uses a 4 nm process from TSMC, with a transistor count of 16,630 million and a die size of 2x 70.6 mm². The Intel Core Ultra 7 356H uses the Panther Lake architecture, part of the Core Ultra Series 3, and is built on a 3 nm process from Intel. Its transistor count and die size are not recorded in the database.

Cache structures differ substantially. The AMD part has 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. The Intel part has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. This gives AMD a much larger total cache pool, particularly in L3, which can be beneficial for holding larger working sets.

Integrated graphics differ, with the AMD part featuring the Radeon 610M and the Intel part featuring the Intel Xe3 Graphics. The AMD part is manufactured by AMD, while the Intel part is made by Intel. The release dates show the AMD part launched on 2025-01-05, and the Intel part on 2026-01-04. The AMD part's generation is listed as Ryzen 9 (Zen 5 (Fire Range)), while the Intel part is Ultra 7 (Panther Lake-H).

Where Each One Wins

The AMD Ryzen 9 9850HX wins in all performance categories except one. Its 108.1% lead in integer math makes it ideal for spreadsheet calculations, database queries, and code compilation. The 97% lead in data compression points to strong performance in file archiving and backup software. A 92.9% lead in extended instructions indicates superior cryptographic and hashing operations.

The 52.2% multithread advantage shows the AMD part handles parallel workloads like video rendering and scientific simulations with greater efficiency. The 71.2% lead in random string sorting suggests better performance in text processing and data serialization tasks. The 22% lead in data encryption and the 11.6% lead in floating-point math round out a comprehensive performance profile.

The Intel Core Ultra 7 356H wins only in the find prime numbers test, with a 1.2% margin. This specific workload, involving prime number generation, is the sole area where the Intel architecture shows a measurable edge. The Intel part also offers a higher memory bandwidth of 115.2 GB/s versus 89.6 GB/s, which could theoretically benefit memory-intensive tasks, but the benchmark data does not show a corresponding performance win.

The Intel part's 16 cores and 16 threads, without multithreading, do not overcome the AMD part's 12 cores and 24 threads in any shared benchmark. The AMD part's higher boost clock of 5.20 GHz versus 4.70 GHz contributes to its single-thread lead. For any user focusing purely on benchmark scores, the AMD Ryzen 9 9850HX is the superior processor. The Intel part's only recorded advantage is a single narrow benchmark win, which is unlikely to influence real-world application choice.