AMD Ryzen AI 9 365 vs Intel Core Ultra 9 285HX Comparison

The AMD Ryzen AI 9 365 and Intel Core Ultra 9 285HX occupy different tiers in the mobile processor landscape. The recorded data shows the Intel part delivers substantially higher performance across every benchmark in the comparison set, while the AMD chip operates at a significantly lower power envelope. Their architectural approaches diverge completely: AMD uses a hybrid of Zen 5 and Zen 5c cores on a 4 nm process, while Intel employs a 24-core Arrow Lake configuration on a 3 nm node. The benchmark results position the Intel CPU at the 95th percentile among all processors, whereas the AMD chip sits at the 87th percentile.

Where Each One Wins

The benchmark data records no wins for the AMD Ryzen AI 9 365 in the head-to-head comparison. The Intel Core Ultra 9 285HX wins all 15 recorded benchmarks, with margins ranging from 6.3% in single-core Cinebench R15 to 74.6% in the PassMark find prime numbers test. This is a lopsided distribution that reflects the different design targets of the two parts.

The AMD processor does hold a clear advantage in power consumption, with a 28 W TDP against Intel's 55 W TDP. That difference suggests the Ryzen AI 9 365 is suited for thinner, lighter systems where thermal limits and battery life take priority over raw throughput. The Intel chip, with its higher TDP and larger core count, fits into larger laptops or mobile workstations that can sustain higher sustained loads.

Looking at the workload breakdown, the Intel CPU's biggest wins come in floating-point math, where it scores 194998 against 62802, a 67.8% lead. Prime number finding shows the largest relative gap at 74.6% (460 versus 117). Encryption also favors Intel heavily: 48567 versus 18297, a 62.3% advantage. These are compute-intensive tasks that benefit from the Intel part's higher core count and clock speeds.

The AMD chip's relative strengths appear in single-threaded efficiency when normalized against its TDP. Its Cinebench R23 single-core score of 1992 is only 8.9% behind Intel's 2187.5, despite running at a much lower power limit. The data shows the Ryzen AI 9 365 delivers competitive single-thread performance per watt, though the Intel part still wins the absolute score.

Architecture Differences

The two processors share almost nothing in their underlying designs. The AMD Ryzen AI 9 365 uses the Strix Point codename with a Zen 5 architecture, built on a 4 nm TSMC process with a die size of 233 mm². The Intel Core Ultra 9 285HX uses Arrow Lake-HX, also fabricated by TSMC but on a 3 nm node, with a slightly larger die at 243 mm² and 17,800 million transistors.

Core counts differ dramatically. The AMD part has 10 cores and 20 threads, while the Intel part has 24 cores and 24 threads. The Intel chip does not support simultaneous multithreading, so its thread count equals its core count. The AMD chip uses simultaneous multithreading to double its thread count from 10 to 20.

Cache hierarchies diverge as well. The AMD processor has 80 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Intel processor has 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3. Both use a dual-channel memory bus, but the Intel part supports DDR5 with a bandwidth of 102.4 GB/s, while the AMD part supports DDR5 and LPDDR5X with a bandwidth of 89.6 GB/s.

Memory features differ: the Intel chip supports ECC memory, the AMD chip does not. PCIe connectivity also separates them. The Intel part provides Gen 5 with 20 lanes, while the AMD part provides Gen 4 with 16 lanes. Integrated graphics differ as well: the AMD chip has a Radeon 880M, and the Intel chip has Arc Xe-LPG Graphics with 64 execution units.

The Intel processor has an unlocked multiplier, while the AMD chip does not. The Intel part also carries a production status of Active and uses Intel BGA 2114, while the AMD part uses AMD Socket FP8. The AMD part released on 2024-06-30, while the Intel part followed on 2025-01-12.

FAQ

Q: Which processor has a higher core count?

A: The Intel Core Ultra 9 285HX has 24 cores, while the AMD Ryzen AI 9 365 has 10 cores.

Q: Does the AMD Ryzen AI 9 365 support ECC memory?

A: No, the AMD Ryzen AI 9 365 does not support ECC memory. The Intel Core Ultra 9 285HX does support ECC memory.

Q: What is the TDP difference between the two processors?

A: The AMD Ryzen AI 9 365 has a TDP of 28 W, while the Intel Core Ultra 9 285HX has a TDP of 55 W.

Q: Which processor offers higher memory bandwidth?

A: The Intel Core Ultra 9 285HX offers 102.4 GB/s, compared to 89.6 GB/s for the AMD Ryzen AI 9 365.

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 9 285HX has an average benchmark score of 76155, while the AMD Ryzen AI 9 365 has an average score of 40048.

Q: Are both processors manufactured by TSMC?

A: Yes, both are built by TSMC, but on different nodes: the AMD chip uses 4 nm, and the Intel chip uses 3 nm.

Specification Differences

The two processors differ in nearly every major specification category. The AMD Ryzen AI 9 365 has 10 cores and 20 threads, a base clock of 2.00 GHz, and a boost clock of 5.00 GHz. The Intel Core Ultra 9 285HX has 24 cores and 24 threads, a base clock of 2.80 GHz, and a boost clock of 5.50 GHz.

The AMD chip's TDP is 28 W, the Intel chip's is 55 W. The AMD part uses AMD Socket FP8, the Intel part uses Intel BGA 2114. The process node is 4 nm for AMD and 3 nm for Intel. The die size is 233 mm² for AMD and 243 mm² for Intel, with the Intel part containing 17,800 million transistors.

Cache configurations differ: the AMD chip has 80 KB L1 per core, 1 MB L2 per core, and 16 MB L3. The Intel chip has 192 KB L1 per core, 3 MB L2 per core, and 36 MB L3. Memory support also varies: AMD supports DDR5 and LPDDR5X with 89.6 GB/s bandwidth, while Intel supports DDR5 with 102.4 GB/s bandwidth.

PCIe capabilities differ: AMD provides Gen 4 with 16 lanes, Intel provides Gen 5 with 20 lanes. ECC memory is unsupported on AMD but supported on Intel. The multiplier is locked on AMD and unlocked on Intel. The integrated graphics are Radeon 880M on AMD and Arc Xe-LPG Graphics 64EU on Intel. The release dates are 2024-06-30 for AMD and 2025-01-12 for Intel.

Head-to-Head Benchmarks

The Intel Core Ultra 9 285HX dominates every recorded benchmark. In Cinebench R23 multi-core, the Intel chip scores 36429.5 against 18698 for AMD, a 48.7% lead. Single-core R23 shows a narrower gap: 2187.5 versus 1992, an 8.9% difference. The single-core margin in Cinebench R15 is even smaller at 6.3% (323.5 versus 303), indicating that the AMD architecture is more competitive in lightly threaded workloads.

Multi-threaded workloads reveal the Intel part's core-count advantage. PassMark multithread scores show 56902 for Intel versus 29467 for AMD, a 48.2% lead. The physics test shows a 51% gap (3476 versus 1704). Integer math is closer: 155076 versus 101831, a 34.3% lead for Intel. This is the smallest multi-threaded margin in the PassMark suite, suggesting the AMD chip's per-core integer throughput is relatively strong.

The largest gaps appear in computational math tasks. Floating-point math shows Intel at 194998 versus 62802, a 67.8% advantage. Prime number finding shows the biggest gap at 74.6% (460 versus 117). Extended instructions follow at 48.9% (49148 versus 25113). Data encryption shows a 62.3% gap (48567 versus 18297), while data compression shows a 43.9% gap (631885 versus 354510). Random string sorting completes the picture with a 48.9% gap (77196 versus 39447).

Single-threaded PassMark results show Intel at 4618 versus 3841 for AMD, a 16.8% lead. This is consistent with the Cinebench single-core results, where Intel leads by 6.3% to 8.9%. The Intel chip's higher boost clock of 5.50 GHz versus 5.00 GHz likely contributes to this advantage, though the architectural differences also play a role.

The average benchmark scores reflect the overall gap: Intel at 76155, AMD at 40048. The Intel part sits at the 95th percentile of all CPUs, while the AMD part sits at the 87th percentile. The nearest rival data for AMD includes the AMD Ryzen 7 7700 with a delta of -0.1%, indicating the Ryzen AI 9 365 performs in line with that desktop part. The Intel chip's nearest rival is the AMD Ryzen 9 8945HX with a delta of -0.1%, confirming its position among high-end mobile processors.

In the 15 recorded head-to-head benchmarks, the Intel Core Ultra 9 285HX wins all 15. The AMD Ryzen AI 9 365 records zero wins. The data does not show any workload category where the AMD chip outperforms the Intel part, even in single-threaded tests. The only area where the AMD chip shows a comparative advantage is in power consumption, where its 28 W TDP is roughly half the Intel chip's 55 W TDP.