AMD Ryzen AI Embedded P185 vs Intel Core Ultra X9 378H Comparison

FAQ

Q: How do the two processors compare in overall benchmark averages?

A: The AMD Ryzen AI Embedded P185 records an average benchmark score of 62839, placing it in the 93rd percentile of all CPUs. The Intel Core Ultra X9 378H averages 47468, placing it in the 89th percentile. The AMD part sits roughly 32% higher in average score, though the Intel chip’s nearest rivals include the AMD Ryzen 9 PRO 5945 at 47527 and the Intel Core i9-12900F at 47176.

Q: Which processor wins the majority of head-to-head tests?

A: The Intel Core Ultra X9 378H wins 10 of the 11 recorded head-to-head benchmarks. The AMD Ryzen AI Embedded P185 wins only one: PassMark integer math, where it scores 117832 against Intel’s 92603, a 27.2% advantage.

Q: What is the largest single-benchmark margin between the two?

A: The largest margin is in PassMark find prime numbers. Intel scores 357 versus AMD’s 129, a 63.9% deficit for AMD. The second-largest gap is in PassMark physics, where Intel leads 3404 to 1772, a 47.9% difference.

Q: How do the core and thread counts differ?

A: The AMD Ryzen AI Embedded P185 has 12 cores and 24 threads. The Intel Core Ultra X9 378H has 16 cores and 16 threads. Despite having fewer threads, Intel’s multithread score of 38298 exceeds AMD’s 31817 by 16.9%.

Q: What are the boost clock speeds for each chip?

A: The AMD processor boosts to 5.10 GHz, while the Intel part boosts to 5.00 GHz. Both have a base clock of 2.00 GHz. In single-thread PassMark testing, Intel scores 4453 versus AMD’s 3977, a 10.7% advantage despite the lower boost clock.

Q: Which processor supports ECC memory?

A: The AMD Ryzen AI Embedded P185 supports ECC memory. The Intel Core Ultra X9 378H does not. Both processors use dual-channel memory, but AMD supports DDR5 and LPDDR5X, while Intel supports only LPDDR5X.

Where Each One Wins

The Intel Core Ultra X9 378H dominates the PassMark suite across nearly every workload category. Its most pronounced wins come in integer-heavy and physics-based tasks. In PassMark physics, Intel scores 3404 against AMD’s 1772, a 47.9% margin that suggests substantially stronger simulation or constraint-solving throughput. The find prime numbers test shows a 63.9% Intel advantage (357 versus 129), indicating superior raw arithmetic iteration speed. Floating-point math also favors Intel decisively: 114500 versus 70587, a 38.4% lead. Data encryption shows Intel ahead by 34.3% (29840 versus 19612), and extended instructions by 15.2% (31315 versus 26544). Even in compression, a workload where AMD’s architecture often competes well, Intel leads 386591 versus 374429, a 3.1% margin. Random string sorting goes Intel’s way by 9.2% (44648 versus 40557). Multithread performance favors Intel by 16.9% (38298 versus 31817), and single-thread performance by 10.7% (4453 versus 3977).

The AMD Ryzen AI Embedded P185 holds one clear victory: integer math. Its score of 117832 exceeds Intel’s 92603 by 27.2%. This is a substantial margin and indicates that the AMD chip’s 24 threads, combined with its Zen 5 / Zen 5c hybrid architecture, deliver superior throughput on integer operations that scale with thread count. This single win is notable because integer math often correlates with general productivity workloads, database operations, and compilation tasks. However, the rest of the benchmark record shows Intel’s broader strength.

The benchmark data indicates that the Intel part is the more versatile performer, winning 10 of 11 tests. The AMD chip’s single win, while large in percentage terms, does not offset the breadth of Intel’s dominance. For workloads that rely on integer arithmetic and heavy thread scaling, the AMD part has a specific niche. For everything else in the PassMark suite, the Intel processor holds the advantage.

Architecture Differences

The AMD Ryzen AI Embedded P185 uses the Gorgon Point codename and belongs to the Ryzen AI Embedded generation built on Zen 5 / Zen 5c cores. The process node is 4 nm, fabricated by TSMC. The die size measures 233 mm². The Intel Core Ultra X9 378H uses the Panther Lake codename and belongs to the Ultra X9 (Panther Lake-H) generation. It is built on a 3 nm process at Intel’s own foundry. The Intel die size is not recorded in the database.

Cache hierarchies differ notably. The AMD processor has 80 KB of L1 cache per core and 1 MB of L2 per core, with 16 MB of L3 cache. The Intel processor has 192 KB of L1 per core and 2.5 MB of L2 per core, with 18 MB of shared L3. The larger per-core L1 and L2 on Intel likely contribute to its single-thread advantage, while the shared L3 capacity is also higher on Intel.

Memory support diverges. AMD supports both DDR5 and LPDDR5X, while Intel supports only LPDDR5X. Both use dual-channel memory buses. Memory bandwidth favors Intel significantly: 153.6 GB/s versus AMD’s 89.6 GB/s. This bandwidth gap may explain Intel’s strong showing in data compression and random string sorting, both of which benefit from fast memory access.

PCIe connectivity differs. AMD provides Gen 4 with 16 lanes (CPU only). Intel provides Gen 5 with 4 lanes (CPU only). The AMD part offers more lanes at a slower generation, while Intel offers fewer lanes at a faster generation. Integrated graphics also differ: AMD uses the Radeon 890M, while Intel uses the Arc B390.

ECC memory support is present only on the AMD chip. This makes the AMD part more suitable for error-sensitive embedded workloads, despite its lower overall benchmark scores. The Intel part lacks ECC support entirely. Both processors have locked multipliers, meaning no overclocking via multiplier adjustment.

Specification Differences

The recorded specifications show clear differences between the two processors. The AMD Ryzen AI Embedded P185 has 12 cores and 24 threads, while the Intel Core Ultra X9 378H has 16 cores and 16 threads. Base clocks are identical at 2.00 GHz. Boost clocks differ slightly: AMD reaches 5.10 GHz, Intel reaches 5.00 GHz.

Thermal design power differs by 3 watts. AMD is rated at 28 watts, Intel at 25 watts. Both target the mobile market segment. Sockets differ: AMD uses AMD Socket FP8, Intel uses Intel BGA 2540.

Cache specifications show Intel with larger per-core allocations: 192 KB L1 and 2.5 MB L2 per core, versus AMD’s 80 KB L1 and 1 MB L2 per core. Total L3 is 18 MB on Intel versus 16 MB on AMD. Die size is recorded only for AMD at 233 mm²; Intel’s die size is absent from the database.

Memory support and bandwidth differ as described above. AMD supports DDR5 and LPDDR5X with 89.6 GB/s bandwidth. Intel supports only LPDDR5X with 153.6 GB/s bandwidth. ECC support exists only on AMD. PCIe generation and lanes differ: AMD has Gen 4 with 16 lanes, Intel has Gen 5 with 4 lanes. Integrated graphics are Radeon 890M on AMD and Arc B390 on Intel.

Release dates differ by roughly one month. AMD’s release date is 2026-02-28, Intel’s is 2026-04-03. Both are listed as active production. Neither has a recorded launch MSRP in the database.

Percentile rankings differ: AMD sits in the 93rd percentile of all CPUs, Intel in the 89th. Average benchmark scores are 62839 for AMD and 47468 for Intel.

Head-to-Head Benchmarks

The head-to-head data shows a lopsided result. Intel wins 10 tests, AMD wins 1.

The AMD win comes in PassMark integer math. AMD scores 117832, Intel scores 92603. The 27.2% delta is the only positive margin for AMD in the entire comparison. This result aligns with AMD’s higher thread count (24 versus 16), as integer math workloads often scale well with additional threads.

Intel’s largest win is in PassMark find prime numbers. Intel scores 357, AMD scores 129, a 63.9% gap. This test is highly sensitive to single-thread arithmetic and cache latency, areas where Intel’s larger per-core L1 and L2 likely provide an advantage.

PassMark physics shows Intel ahead by 47.9% (3404 versus 1772). Physics simulations typically stress floating-point and memory bandwidth, both of which favor Intel. Floating-point math confirms this trend: Intel scores 114500 versus AMD’s 70587, a 38.4% lead.

Data encryption shows Intel ahead by 34.3% (29840 versus 19612). This test often relies on cryptographic instruction extensions and memory throughput, where Intel’s higher bandwidth (153.6 GB/s versus 89.6 GB/s) plays a role.

Multithread performance favors Intel by 16.9% (38298 versus 31817). Despite having 8 fewer threads, Intel’s 16 cores outperform AMD’s 24 threads. This suggests Intel’s cores deliver higher per-thread throughput in the multithread workload.

Single-thread performance favors Intel by 10.7% (4453 versus 3977). The Intel boost clock is lower (5.00 GHz versus 5.10 GHz), yet the single-thread score is higher. This points to architectural efficiency rather than clock speed.

Extended instructions show Intel ahead by 15.2% (31315 versus 26544). Random string sorting favors Intel by 9.2% (44648 versus 40557). Data compression shows the narrowest Intel win at 3.1% (386591 versus 374429).

The benchmark record indicates that Intel’s architectural choices, including larger caches, higher memory bandwidth, and a 3 nm process, produce consistent wins across most measured workloads. AMD’s advantage is isolated to integer math, where its thread count and Zen 5 / Zen 5c design deliver a clear but narrow victory.