AMD Ryzen AI 7 450 vs Intel Core Ultra 9 285H Comparison

The AMD Ryzen AI 7 450 and Intel Core Ultra 9 285H are both modern mobile processors aimed at high-performance laptops, but the recorded benchmarks show a clear performance hierarchy between them. The Intel part wins 14 of the 15 head-to-head tests in the database, with the AMD chip managing a single victory. The Core Ultra 9 285H posts a higher average benchmark score overall, placing at the 86th percentile among all CPUs, while the Ryzen AI 7 450 sits just slightly higher at the 87th percentile. The Intel processor's overall average score reaches 38,312, compared to 39,485 for the AMD chip, which is a narrow gap despite the lopsided head-to-head results.

Head-to-Head Benchmarks

The most decisive Intel victories come in compute-heavy workloads. In the PassMark floating point math test, the Core Ultra 9 285H scores 109,190 against the Ryzen AI 7 450's 54,447, a margin of 50.1 percent. This is the single largest percentage gap in the entire comparison. The PassMark find prime numbers test shows an even starker absolute difference: Intel scores 330 while AMD scores 89, a delta of 73 percent. The Ryzen chip's result here is particularly low, suggesting that its core architecture does not handle this specific workload efficiently.

Data encryption is another area where Intel runs away with the lead. The Core Ultra 9 285H scores 26,140 in PassMark data encryption, while the Ryzen AI 7 450 reaches only 16,247, a 37.8 percent deficit. Physics calculations follow a similar pattern: Intel scores 2,513 versus AMD's 1,578, which is 37.2 percent ahead. Multithreaded performance in PassMark shows Intel at 34,171 versus 26,350 for AMD, a 22.9 percent advantage.

Cinebench results reinforce the Intel lead in both multi-core and single-core tests. In Cinebench R23 multi-core, the Core Ultra 9 285H scores 20,781.5 against 18,316 for the Ryzen AI 7 450, an 11.9 percent difference. The single-core R23 result is much closer: Intel scores 2,129.5 versus 2,038 for AMD, a 4.3 percent edge. Cinebench R15 shows a wider gap in single-core performance, with Intel at 313 and AMD at 215, a 31.3 percent difference, while the multi-core R15 result favors Intel by 14.6 percent (3,177.5 versus 2,713).

The AMD Ryzen AI 7 450's only win comes in PassMark integer math, where it scores 88,531 against Intel's 85,922, a 3 percent advantage. This is a notable result because it shows that the AMD chip can outperform the Intel part in at least one important scalar workload, even if the overall trend is heavily in Intel's favor.

Other head-to-head results show Intel ahead by smaller margins. PassMark extended instructions favor Intel by 16.4 percent (26,794 versus 22,400). Random string sorting gives Intel a 12.9 percent edge (40,931 versus 35,648). Data compression results show Intel at 335,859 versus 315,906 for AMD, a 5.9 percent lead. Single-thread performance in PassMark puts Intel at 4,415 versus 3,901 for AMD, an 11.6 percent difference.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen AI 7 450 uses the Zen 5 architecture with the codename Gorgon Point, built on a 4 nm process node at TSMC. The Intel Core Ultra 9 285H uses Arrow Lake-H, also fabricated by TSMC but on a smaller 3 nm node. Both are mobile processors, but the core configurations differ significantly.

The AMD chip has 8 cores and 16 threads, while the Intel chip has 16 cores and 16 threads. This means the Intel processor has twice as many physical cores but no hyper-threading, while the AMD part relies on simultaneous multithreading to reach its thread count. The Intel processor's base clock is 2.90 GHz and boost clock is 5.40 GHz, compared to 2.00 GHz base and 5.10 GHz boost for the AMD part. The higher base clock and slightly higher boost clock give Intel an inherent frequency advantage.

Cache hierarchies are also very different. The Intel Core Ultra 9 285H has 192 KB of L1 cache per core, 3 MB of L2 per core, and 24 MB of shared L3 cache. The AMD Ryzen AI 7 450 has 80 KB of L1 per core, 1 MB of L2 per core, and only 8 MB of L3 cache total. The Intel chip's larger L3 cache is likely a major factor in its performance lead, particularly in workloads that benefit from larger shared pools of fast memory.

Memory support is similar on paper: both support DDR5 and LPDDR5X memory, both use dual-channel memory buses, and both support ECC memory. However, the Intel chip has a higher memory bandwidth rating at 102.4 GB/s, compared to 89.6 GB/s for the AMD chip. PCIe support differs as well: the Intel processor offers Gen 5 with 8 lanes (CPU only), while the AMD processor offers Gen 4 with 16 lanes (CPU only). This means the Intel chip has a newer PCIe generation but fewer lanes.

The integrated graphics differ: the AMD Ryzen AI 7 450 comes with Radeon 860M graphics, while the Intel Core Ultra 9 285H features Arc Graphics 140T. The database does not include graphics benchmarks, so no direct comparison is possible here.

Release dates place the Intel chip earlier, with a release date of January 2025, while the AMD chip is dated for January 2026. The Intel part has a launch MSRP of $651, while the AMD part has no listed launch MSRP. Both processors are marked as active in production and neither has an unlocked multiplier.

FAQ

Q: Which processor is faster overall in the recorded benchmarks?

A: The Intel Core Ultra 9 285H wins 14 of the 15 head-to-head tests. Its average benchmark score is 38,312 compared to 39,485 for the AMD Ryzen AI 7 450, though the AMD chip holds a higher percentile ranking at 87 versus 86 for Intel.

Q: In which workload does the AMD Ryzen AI 7 450 beat the Intel Core Ultra 9 285H?

A: The AMD chip wins PassMark integer math, scoring 88,531 versus 85,922 for Intel, a 3 percent advantage. This is the only test in the head-to-head set where AMD comes out ahead.

Q: How large is the performance gap in multi-core rendering?

A: In Cinebench R23 multi-core, the Intel chip scores 20,781.5 against 18,316 for AMD, a lead of 11.9 percent. The Cinebench R15 multi-core test shows a 14.6 percent edge for Intel (3,177.5 versus 2,713).

Q: What is the biggest single performance difference between the two chips?

A: The largest gap is in PassMark find prime numbers, where Intel scores 330 and AMD scores 89, a difference of 73 percent. The floating point math test also shows a 50.1 percent lead for Intel.

Q: Do both processors support the same memory types?

A: Yes, both support DDR5 and LPDDR5X memory, use dual-channel memory buses, and support ECC memory. The Intel chip has a higher memory bandwidth rating at 102.4 GB/s versus 89.6 GB/s for AMD.

Q: How do the core counts and thread counts compare?

A: The Intel Core Ultra 9 285H has 16 cores and 16 threads. The AMD Ryzen AI 7 450 has 8 cores and 16 threads, meaning AMD relies on multithreading to match the thread count while Intel uses additional physical cores.

Specification Differences

The two processors differ in several key specification fields. The AMD Ryzen AI 7 450 has 8 cores and 16 threads, while the Intel Core Ultra 9 285H has 16 cores and 16 threads. Base clocks are 2.00 GHz for AMD and 2.90 GHz for Intel, with boost clocks of 5.10 GHz and 5.40 GHz respectively. The thermal design power (TDP) is 28 watts for the AMD chip and 45 watts for the Intel chip, a notable difference in power envelope.

The socket types differ: AMD uses Socket FP8, while Intel uses BGA 2049. The process nodes differ as well, with AMD on 4 nm and Intel on 3 nm, both from TSMC. The die size is listed at 195 mm² for the AMD chip, while no die size is recorded for the Intel part. Cache configurations are substantially different: AMD has 80 KB L1 per core, 1 MB L2 per core, and 8 MB L3, while Intel has 192 KB L1 per core, 3 MB L2 per core, and 24 MB shared L3.

Memory bandwidth is higher for Intel at 102.4 GB/s versus 89.6 GB/s for AMD. PCIe support differs: AMD offers Gen 4 with 16 lanes (CPU only), while Intel offers Gen 5 with 8 lanes (CPU only). The integrated graphics are different, with AMD using Radeon 860M and Intel using Arc Graphics 140T. The generation fields also differ, with AMD listed as Ryzen AI 400 (Zen 5 / Zen 5c) and Intel as Ultra 9 (Arrow Lake-H). The Intel part has a launch MSRP of $651, while the AMD part has no launch MSRP recorded. The release dates differ by about a year, with Intel released earlier.

The Verdict

The benchmark data is unambiguous: the Intel Core Ultra 9 285H is the faster processor in nearly every recorded workload. It leads in all Cinebench tests, all multithreaded PassMark tests, and the vast majority of single-threaded tests. The only exception is PassMark integer math, where the AMD Ryzen AI 7 450 edges ahead by 3 percent. If raw performance is the priority, the Intel chip is the clear choice based on the database results.

The AMD Ryzen AI 7 450 does have advantages worth noting. It has a significantly lower TDP of 28 watts versus 45 watts for Intel, which could translate to better power efficiency in a mobile context, though the database does not include power consumption measurements. It also has a smaller process node at 4 nm versus 3 nm, though the practical impact is not directly measured here. The AMD chip's 16 PCIe Gen 4 lanes may be preferable for certain expansion configurations compared to Intel's 8 Gen 5 lanes.

For users who prioritize multi-threaded productivity, rendering, encryption, or physics simulations, the Intel Core Ultra 9 285H is the better option by large margins. The 37.8 percent lead in data encryption and 37.2 percent lead in physics are substantial. The 50.1 percent advantage in floating point math is particularly relevant for scientific and engineering workloads. The Intel chip's larger L3 cache and higher memory bandwidth likely contribute to these results, though the database does not isolate those factors.

For users who care about single-core responsiveness, the Intel chip also leads, though by a smaller margin in Cinebench R23 single-core (4.3 percent) and a larger margin in Cinebench R15 single-core (31.3 percent). The PassMark single-thread test shows an 11.6 percent Intel advantage.

The AMD chip's single win in integer math suggests it may have a slight edge in certain general-purpose computing tasks, but the overall pattern is clear. The Intel Core Ultra 9 285H delivers superior performance across the vast majority of benchmarks, making it the recommended choice for performance-focused mobile systems. The AMD Ryzen AI 7 450 remains a competitive option for those who prioritize lower power draw or specific expansion needs, but it cannot match the Intel chip's overall performance profile in the recorded data.