AMD Ryzen AI Max+ 392 vs Intel Core Ultra 9 285K Comparison

Head-to-Head Benchmarks

The benchmark record presents a clear and consistent hierarchy between these two processors. Across all eleven head-to-head comparisons recorded in the database, the Intel Core Ultra 9 285K emerges as the winner, with the AMD Ryzen AI Max+ 392 trailing by significant margins in every single test. This is not a contest of close margins; the data shows a systematic performance advantage for the Intel part, with deltas ranging from a substantial 11.6% to a massive 55.6%.

The most decisive victory for the Intel Core Ultra 9 285K comes in the floating-point math test, where it scores 224,324 against the AMD's 99,548. This represents a 55.6% advantage, the largest gap recorded in the entire comparison. This is a clear indicator that for workloads heavily reliant on floating-point calculations, such as scientific computing or certain types of engineering simulations, the Intel processor is in a different performance class. Similarly, in data encryption, the Intel part's score of 57,745 dwarfs the AMD's 27,784, a 51.9% difference. This suggests a major advantage for tasks involving cryptographic operations or secure data handling.

The pattern continues across other core-heavy workloads. In the multithread benchmark, the Intel Core Ultra 9 285K scores 67,260, which is 32.8% higher than the AMD's 45,231. The find prime numbers test shows a 40.9% lead for Intel (541 versus 320), and the random string sorting test shows a 37.3% lead (94,927 versus 59,487). These results collectively paint a picture of a processor that is significantly more capable in multi-threaded, parallel processing tasks.

Even in areas where the AMD processor might be expected to compete, the Intel part still holds a commanding lead. The data compression test sees Intel score 790,052 against AMD's 554,760, a 29.8% difference. The extended instructions and physics tests both show a 26.7% advantage for Intel, with scores of 62,277 versus 45,666 and 3,938 versus 2,887, respectively.

The single-threaded performance, often a key indicator for everyday responsiveness and lightly-threaded applications, is also firmly in Intel's favor. The passmark_single_thread score for the Intel Core Ultra 9 285K is 5,087, while the AMD Ryzen AI Max+ 392 scores 3,927. This 22.8% advantage is the smallest delta in the comparison, but it is still a decisive win. The integer math test shows the closest overall contest, with Intel scoring 172,379 against AMD's 152,414, a difference of 11.6%. While this is the narrowest margin, it still represents a clear victory for the Intel processor.

The aggregate data reinforces this narrative. The Intel Core Ultra 9 285K holds an average benchmark score of 83,807, while the AMD Ryzen AI Max+ 392 averages 90,541. This is a notable point: the AMD processor's average score is higher, yet it loses every single head-to-head test. This discrepancy suggests a difference in the composition of the benchmark suites used for the average versus the head-to-head comparisons. Nevertheless, for the specific benchmarks where both were tested side-by-side, the data is unambiguous: the Intel Core Ultra 9 285K wins all 11 confrontations.

The Verdict

Based strictly on the recorded benchmark data, the Intel Core Ultra 9 285K is the superior processor in every measured category. For any user whose primary concern is raw computational performance, the data points unequivocally to the Intel part. It offers a substantial advantage in all tested workloads, from single-threaded tasks to heavily parallelized calculations. The 22.8% lead in single-thread performance alone makes it the better choice for general system responsiveness and software that relies on a few fast cores.

The AMD Ryzen AI Max+ 392, while losing on all 11 head-to-head tests, still shows a higher average benchmark score (90,541) and a higher percentile ranking (96th) among all CPUs. This indicates that it is a very capable processor in its own right, performing admirably against the broader CPU market. Its 96th percentile ranking is identical to the Intel part, meaning both are among the top 4% of all processors in the database.

However, when the choice is between these two specific models, the data does not support selecting the AMD processor on the basis of compute performance. The Intel Core Ultra 9 285K is faster in every benchmark in the head-to-head comparison. The choice of the AMD part would have to be justified by other factors not covered in these performance metrics, such as the significantly lower power envelope (55W TDP versus 125W TDP), its integrated Radeon 8060S graphics, or its mobile market segment. From a pure performance standpoint, the verdict is clear: the Intel Core Ultra 9 285K wins decisively.

Where Each One Wins

Looking at the benchmark wins, the Intel Core Ultra 9 285K wins everywhere. It is the victor in all 11 recorded head-to-head benchmarks. This comprehensive sweep means that for any workload represented by these tests, the Intel processor is the better performer.

• Compute-Intensive and Parallel Workloads: The Intel Core Ultra 9 285K is the clear choice for tasks like data compression, encryption, and complex mathematical calculations. Its leads of 29.8%, 51.9%, and 55.6% in those respective areas make it the go-to processor for high-performance computing tasks, such as video rendering, software compilation, and financial modeling.
• General and Single-Threaded Performance: For everyday applications, the Intel part's 22.8% lead in single-thread performance makes it feel snappier and more responsive. This advantage extends to many games and productivity applications that do not scale perfectly with core count.
• Data Sorting and Processing: The 37.3% advantage in random string sorting indicates a strong performance in database and data-processing operations, making the Intel processor well-suited for server and analytical workloads.

The AMD Ryzen AI Max+ 392, based on this data, does not have a single benchmark category where it outperforms the Intel part. Its strengths must be found outside of the PassMark suite. The data shows it is a highly ranked CPU overall (96th percentile), but in a direct comparison, its performance is consistently lower. Its positioning as a mobile processor with a 55W TDP and integrated Radeon 8060S graphics suggests its winning scenario is in a thin-and-light laptop where power efficiency and integrated graphics performance are more important than the absolute peak compute performance offered by the desktop-oriented Intel chip.

FAQ

Q: Which CPU is faster in multi-threaded workloads?

A: The Intel Core Ultra 9 285K is significantly faster. In the PassMark multithread test, it scores 67,260, which is 32.8% higher than the AMD Ryzen AI Max+ 392's score of 45,231.

Q: Is the AMD Ryzen AI Max+ 392 better in any single benchmark?

A: No. In the 11 head-to-head benchmarks recorded, the Intel Core Ultra 9 285K wins every single one. The AMD processor does not record a single victory in the comparison.

Q: How do they compare in single-threaded performance?

A: The Intel Core Ultra 9 285K takes a clear lead with a score of 5,087, while the AMD Ryzen AI Max+ 392 scores 3,927. This represents a 22.8% advantage for the Intel part.

Q: What is the most significant performance gap between the two?

A: The largest difference is found in the floating-point math test. The Intel Core Ultra 9 285K scores 224,324, a massive 55.6% higher than the AMD's 99,548.

Q: The AMD CPU has a higher average benchmark score, why is it not faster?

A: The AMD Ryzen AI Max+ 392 does have a higher average benchmark score (90,541) compared to the Intel Core Ultra 9 285K (83,807). However, this average is calculated over a broader set of benchmarks, while the head-to-head comparison uses a specific suite of PassMark tests. In that specific suite, the Intel part wins every test.

Q: What are the core and thread counts for each processor?

A: The AMD Ryzen AI Max+ 392 has 12 cores and 24 threads. The Intel Core Ultra 9 285K has 24 cores and 24 threads.

Architecture Differences

The two processors are built on fundamentally different architectures and are designed for different market segments. The AMD Ryzen AI Max+ 392 is a mobile processor, while the Intel Core Ultra 9 285K is a desktop processor.

• Core and Thread Configuration: A key architectural difference lies in the core counts. The AMD Ryzen AI Max+ 392 features 12 cores and 24 threads, utilizing its Zen 5 architecture. The Intel Core Ultra 9 285K, based on the Arrow Lake architecture, has 24 cores and 24 threads. This means Intel does not use simultaneous multithreading, offering 24 physical cores, whereas AMD relies on multithreading to reach its 24-thread count.

• Process Node and Physical Size: The Intel chip is manufactured on a smaller 3 nm process node, compared to AMD's 4 nm. Despite the smaller node, the Intel die is considerably larger at 243 mm², containing 17,800 million transistors. The AMD chip has a die size listed as "2x 70.6 mm²". This physical difference is a direct result of the different core counts and integrated components.

• Cache Hierarchy: The cache configurations also differ significantly. The AMD Ryzen AI Max+ 392 has a larger shared L3 cache at 64 MB, while the Intel Core Ultra 9 285K has a 36 MB shared L3 cache. However, Intel has a larger L1 cache (192 KB per core) and L2 cache (3 MB per core) compared to AMD's 80 KB L1 and 1 MB L2 per core.

• Memory and I/O: The platforms support different memory types. The AMD mobile chip supports LPDDR5X memory over a quad-channel bus, resulting in a much higher theoretical memory bandwidth of 256.0 GB/s. The Intel desktop chip supports DDR5 memory over a dual-channel bus with a bandwidth of 102.4 GB/s. For PCIe, the AMD chip uses Gen 4 with 16 lanes, while the Intel chip uses the newer Gen 5 standard with 20 lanes.

• Power and Socket: The AMD Ryzen AI Max+ 392 is a much more power-efficient part with a TDP of 55W and uses the AMD Socket FP11. The Intel Core Ultra 9 285K has a TDP of 125W and uses the Intel Socket 1851. The Intel chip also has an unlocked multiplier, allowing for overclocking, whereas the AMD chip does not.

• Integrated Graphics: Both processors include integrated graphics. The AMD part features the Radeon 8060S, while the Intel part includes Arc Xe-LPG Graphics with 64 execution units. The performance of these integrated GPUs is not covered in the provided benchmark data.