AMD Ryzen AI Embedded P185 vs Intel Core Ultra 7 255H Comparison

Head-to-Head Benchmarks

The recorded data shows a split decision between these two mobile processors. The AMD Ryzen AI Embedded P185 takes 5 of the 11 head-to-head tests, while the Intel Core Ultra 7 255H wins 6. The margins, however, tell a more nuanced story than the win count alone.

The AMD processor delivers its most decisive victory in integer math, scoring 117832 against Intel's 77975, a 51.1% advantage. This is the largest delta in the entire comparison. The AMD chip also leads data compression by 25.3% (374429 versus 298850), extended instructions by 11.7% (26544 versus 23755), and random string sorting by 12.5% (40557 versus 36058). Its multithread score of 31817 edges out Intel's 30703 by a narrower 3.6% margin.

Intel counters with several wins of its own. The most striking is prime number finding, where Intel scores 303 against AMD's 129, a 57.4% gap in Intel's favor. Intel also leads floating point math by 28.6% (98796 versus 70587), data encryption by 16.2% (23395 versus 19612), and physics by 21.4% (2254 versus 1772). Single-thread performance favors Intel as well, with 4317 versus 3977, a 7.9% difference.

The pattern suggests complementary strengths. AMD dominates integer-heavy workloads and compression, while Intel claims floating point, encryption, and prime number workloads. The multithread test is the closest contest, with less than 4% separating the two.

Where Each One Wins

The AMD Ryzen AI Embedded P185 shows its strongest performance in data compression and integer math. The 51.1% lead in integer math indicates a substantial advantage for tasks that rely on whole-number arithmetic, such as database operations, financial calculations, and certain types of scientific computing. The 25.3% edge in data compression points to efficient handling of file archiving and storage workloads. Extended instructions (11.7% ahead) and random string sorting (12.5% ahead) further reinforce the AMD chip's suitability for data processing and manipulation tasks.

The Intel Core Ultra 7 255H claims the opposite end of the spectrum. Its 57.4% lead in prime number finding suggests superior performance in workloads that involve heavy iteration and algorithmic number theory. The 28.6% advantage in floating point math indicates strength in scientific simulations, 3D rendering, and engineering applications that depend on decimal precision. The 16.2% lead in data encryption and 21.4% lead in physics point toward workloads involving cryptography and physical simulation engines.

Single-thread performance favors Intel by 7.9%, which matters for applications that cannot parallelize across many cores. The AMD chip's multithread advantage, while small at 3.6%, suggests better scaling when all cores are engaged.

Architecture Differences

The two processors take fundamentally different design approaches. The AMD Ryzen AI Embedded P185 uses the Gorgon Point codename and belongs to the Ryzen AI Embedded generation built on Zen 5 and Zen 5c cores. It pairs 12 cores with 24 threads, meaning each core can handle two threads simultaneously. The Intel Core Ultra 7 255H belongs to the Core Ultra Series 2, uses the Arrow Lake architecture from the Arrow Lake-H codename, and provides 16 cores with 16 threads, indicating no simultaneous multithreading.

Process technology differs as well. AMD uses a 4 nm process from TSMC, while Intel also relies on TSMC but at 3 nm. The AMD die measures 233 mm², while Intel's die size is not recorded. Cache configurations diverge significantly. AMD allocates 80 KB of L1 cache per core and 1 MB of L2 per core, with 16 MB of shared L3. Intel provides 192 KB of L1 per core and 3 MB of L2 per core, with a larger 24 MB shared L3.

Memory support shows both similarities and differences. Both support DDR5 and LPDDR5X with dual-channel memory buses, and both support ECC memory. The bandwidth, however, differs: AMD records 89.6 GB/s while Intel reaches 102.4 GB/s. PCIe capabilities also separate the two. AMD uses Gen 4 with 16 lanes for the CPU, while Intel uses Gen 5 with 20 lanes. Integrated graphics differ as well, with AMD pairing the Radeon 890M and Intel using Arc Graphics 140T.

Both processors share the same base clock of 2.00 GHz and boost clock of 5.10 GHz. Both have a 28 TDP and are locked, with no unlocked multiplier. AMD uses the AMD Socket FP8, while Intel uses Intel BGA 2049. Both are currently active in production and target the mobile market segment.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 255H has 16 cores, while the AMD Ryzen AI Embedded P185 has 12 cores. However, the AMD chip supports 24 threads through simultaneous multithreading, while the Intel chip has 16 threads.

Q: How do the cache sizes compare?

A: Intel provides more cache at every level. The Intel chip has 192 KB of L1 per core versus 80 KB per core on AMD, 3 MB of L2 per core versus 1 MB per core, and 24 MB of shared L3 versus 16 MB on the AMD processor.

Q: Which processor has higher memory bandwidth?

A: The Intel Core Ultra 7 255H records 102.4 GB/s, which is higher than the AMD Ryzen AI Embedded P185's 89.6 GB/s. Both support DDR5 and LPDDR5X memory with dual-channel buses.

Q: What is the difference in PCIe support?

A: Intel supports PCIe Gen 5 with 20 lanes for the CPU, while AMD supports PCIe Gen 4 with 16 lanes. This gives the Intel processor a more recent PCIe generation and more available lanes.

Q: Which processor performs better in single-threaded tasks?

A: The Intel Core Ultra 7 255H leads in single-thread performance, scoring 4317 versus AMD's 3977, a 7.9% advantage in the head-to-head comparison.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen AI Embedded P185 and the Intel Core Ultra 7 255H support ECC memory. Both also use dual-channel memory configurations.

The Verdict

The benchmark data indicates that the AMD Ryzen AI Embedded P185 and Intel Core Ultra 7 255H serve different workload priorities. The AMD processor holds a 51.1% advantage in integer math and a 25.3% lead in data compression, making it the stronger choice for data-centric applications that rely on whole-number operations and file processing. Its multithread score of 31817 also edges out Intel's 30703, suggesting good performance in heavily parallel workloads.

The Intel Core Ultra 7 255H counters with a 57.4% lead in prime number finding, a 28.6% advantage in floating point math, a 21.4% lead in physics, and a 16.2% edge in data encryption. These results point toward scientific computing, simulation workloads, and cryptographic applications. The 7.9% single-thread advantage further supports Intel for lightly threaded tasks.

The overall average benchmark scores differ substantially. The AMD chip records an average benchmark score of 62839, while the Intel chip averages 33537. This difference places the AMD processor at the 93rd percentile among all CPUs, versus the 83rd percentile for Intel. The nearest rivals for AMD include the Intel Core Ultra 7 255HX (0.2% ahead), the Intel Core i7-13790F (0.4% behind), and the Intel Core Ultra 7 265HX (0.5% behind). The Intel Core Ultra 7 255H sits near the AMD Ryzen 5 240 (0% difference), the AMD Ryzen 7 8840HS (0.4% behind), and the AMD Ryzen 5 7645HX (0.4% behind).

The choice between these two should depend on the workload profile. The AMD Ryzen AI Embedded P185 delivers stronger integer performance and compression, while the Intel Core Ultra 7 255H provides advantages in floating point, encryption, and single-threaded tasks. Neither processor dominates across all tests, and the 5-to-6 split in test wins reflects this balance.

Specification Differences

The two processors differ in several key specifications. The AMD Ryzen AI Embedded P185 uses 12 cores and 24 threads, while the Intel Core Ultra 7 255H uses 16 cores and 16 threads. The AMD chip belongs to the Ryzen AI Embedded generation with Zen 5 and Zen 5c cores under the Gorgon Point codename, while the Intel chip belongs to Core Ultra Series 2 with Arrow Lake architecture under the Arrow Lake-H codename.

Process nodes differ, with AMD using 4 nm and Intel using 3 nm, both from TSMC. The AMD die measures 233 mm², while Intel's die size is not recorded. Cache configurations differ at every level: AMD has 80 KB L1 per core, 1 MB L2 per core, and 16 MB L3, while Intel has 192 KB L1 per core, 3 MB L2 per core, and 24 MB L3.

Memory bandwidth differs, with AMD at 89.6 GB/s and Intel at 102.4 GB/s. PCIe support also differs: AMD provides Gen 4 with 16 lanes, while Intel provides Gen 5 with 20 lanes. Integrated graphics differ, with AMD using Radeon 890M and Intel using Arc Graphics 140T. The socket types differ as well, with AMD using AMD Socket FP8 and Intel using Intel BGA 2049.

Both processors share identical base clocks of 2.00 GHz and boost clocks of 5.10 GHz, both have a 28 TDP, both support DDR5 and LPDDR5X memory, both support ECC memory, both use dual-channel memory buses, both are locked processors without unlocked multipliers, and both are currently active in production for the mobile market segment.