AMD Ryzen Embedded 8645HS vs Intel Core Ultra 5 225T Comparison

Head-to-Head Benchmarks

The dataset contains no head-to-head benchmark results for the AMD Ryzen Embedded 8645HS against the Intel Core Ultra 5 225T. The Intel part has a substantial recorded benchmark profile, while the AMD part currently has no corresponding benchmark entries in the database. This asymmetry means the direct comparison must rely on the Intel processor's measured results and the architectural differences between the two.

The Intel Core Ultra 5 225T delivers an average benchmark score of 30,468 points, placing it in the 82nd percentile of all CPUs in the database. Its nearest rivals show a tight cluster of performance: the Intel Core i9-11980HK scores 30,422 (0.2% behind), the AMD Ryzen 5 7640HS scores 30,390 (0.3% behind), the AMD Ryzen 7 7736U scores 30,364 (0.3% behind), and the Intel Core i5-13600H scores 30,548 (0.3% ahead). The Core Ultra 5 225T sits essentially in the middle of this group, with margins under half a percent in either direction.

Looking at the Intel processor's individual benchmark results, the single-thread performance is particularly strong. The Cinebench R23 single-core score of 3,101 points and the PassMark single-thread score of 4,348 both confirm a high per-core capability. Multi-threaded results scale accordingly: the Cinebench R23 multi-core score of 21,971 and the PassMark multithread score of 25,358 show that the 10-core, 10-thread configuration sustains meaningful throughput under parallel loads.

The PassMark sub-tests reveal where the Intel processor excels. Floating-point math scores 82,751, integer math scores 59,543, and extended instructions score 20,083. Data compression reaches 233,998, while data encryption scores 18,289. Random string sorting finishes at 28,774, and prime number finding scores 284. The physics test completes at 2,053.

Because the AMD Ryzen Embedded 8645HS has no benchmark records in the database, its percentile ranking stands at 50 with an average benchmark score of 0. The database cannot currently compute any head-to-head win counts: winsA is 0 and winsB is 0. Any comparison of measured performance between these two specific units remains incomplete until benchmark data for the AMD processor becomes available.

Architecture Differences

The two processors come from different architectural generations and design philosophies. The AMD Ryzen Embedded 8645HS uses the Zen 4 architecture under the Hawk Point codename, part of the 8000 series. The Intel Core Ultra 5 225T uses the Arrow Lake architecture, specifically Arrow Lake-S, part of Core Ultra Series 2.

The process technology differs at the foundry level, though both use TSMC. The AMD part is built on a 4 nm process, while the Intel part uses a 3 nm process. Transistor counts reflect the different design scopes: the AMD processor integrates 25,000 million transistors on a 178 mm² die, while the Intel processor integrates 17,800 million transistors on a larger 243 mm² die.

Core and thread configurations diverge sharply. The AMD processor has 6 cores and 12 threads, relying on simultaneous multithreading to reach its thread count. The Intel processor has 10 cores and 10 threads, with no multithreading, meaning each core handles a single thread. The Intel part compensates with a higher physical core count.

Cache hierarchies are structured differently. The AMD processor allocates 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Intel processor allocates 192 KB of L1 per core, 3 MB of L2 per core, and 20 MB of shared L3 cache. The Intel design provides larger per-core caches and a larger total L3 pool.

Clock speeds indicate different operating points. The AMD processor has a base clock of 4.30 GHz and a boost clock of 5.00 GHz. The Intel processor has a base clock of 2.50 GHz and a boost clock of 4.90 GHz. The AMD part starts from a much higher base frequency, while the Intel part's boost ceiling is only 0.10 GHz lower.

Thermal design power also differs. The AMD processor is rated at 45 W TDP, while the Intel processor is rated at 65 W TDP. The socket platforms are incompatible: the AMD part uses AMD Socket FP8, and the Intel part uses Intel Socket 1851.

Memory support shows both processors use DDR5 with dual-channel memory buses. The Intel processor has a higher peak memory bandwidth at 102.4 GB/s compared to the AMD processor's 89.6 GB/s. ECC memory support is present on the AMD processor but absent on the Intel processor.

PCIe capabilities differ by generation. The AMD processor provides Gen 4 with 20 lanes (CPU only), while the Intel processor provides Gen 5 with 20 lanes (CPU only). The Intel part supports the newer PCIe standard.

Integrated graphics differ as well. The AMD processor includes Radeon 760M graphics, while the Intel processor includes Arc Xe-LPG Graphics with 16 execution units.

Market segments and release timing also separate the pair. The AMD processor targets the mobile segment and was released on April 1, 2024. The Intel processor targets the desktop segment and was released on December 31, 2024. Neither processor has an unlocked multiplier, and both remain in active production.

Where Each One Wins

The Intel Core Ultra 5 225T holds the only recorded benchmark data, so the practical performance picture comes entirely from its results. Its 82nd percentile ranking against all CPUs indicates strong overall positioning. The nearest rival comparisons show the Intel processor trading blows within 0.3% of four established mobile and desktop parts, which places it in a competitive performance band rather than at a decisive advantage over any single rival.

Single-thread workloads favor the Intel processor based on its measured Cinebench R23 single-core score of 3,101 and PassMark single-thread score of 4,348. These results, combined with a 4.90 GHz boost clock, suggest responsive performance for lightly threaded applications such as interactive workloads and latency-sensitive tasks. The high base clock of the AMD processor at 4.30 GHz could indicate strong sustained single-thread behavior, but without benchmark measurements, the database cannot confirm its relative position.

Multi-threaded workloads on the Intel processor benefit from its 10 physical cores. The Cinebench R23 multi-core score of 21,971 and Cinebench R20 multi-core score of 9,227 demonstrate solid parallel scaling. The PassMark multithread score of 25,358 reinforces this. The AMD processor's 6 cores and 12 threads would rely on simultaneous multithreading to compete, but the absence of recorded scores prevents a direct comparison.

The passmark sub-tests map to specific workload types. The floating-point math score of 82,751 indicates strength in scientific and engineering calculations. The integer math score of 59,543 covers general computation. Data compression at 233,998 points to efficient handling of archival and storage workloads. Data encryption at 18,289 suggests moderate cryptographic throughput. The extended instructions score of 20,083 reflects SIMD-oriented processing. Random string sorting at 28,774 shows sorting algorithm performance. The physics score of 2,053 and prime number score of 284 round out the computational profile.

For the AMD processor, the architectural features define its potential advantages. ECC memory support gives it a role in reliability-sensitive environments where memory error correction is required. The mobile market segment and 45 W TDP indicate a lower-power footprint. The Zen 4 architecture with a 5.00 GHz boost clock provides a high-frequency foundation. The Radeon 760M integrated graphics may offer different graphical capabilities than Intel's Arc Xe-LPG solution, though the database records no graphics benchmarks for either part.

Specification Differences

The two processors differ across nearly every specification category. Core counts differ: 6 cores on the AMD part versus 10 cores on the Intel part. Thread counts differ: 12 threads versus 10. Base clocks differ: 4.30 GHz versus 2.50 GHz. Boost clocks differ slightly: 5.00 GHz versus 4.90 GHz. TDP differs: 45 W versus 65 W. Sockets differ: AMD Socket FP8 versus Intel Socket 1851.

Architecture and codename differ: Zen 4 with Hawk Point versus Arrow Lake with Arrow Lake-S. Process nodes differ: 4 nm versus 3 nm. Transistor counts differ: 25,000 million versus 17,800 million. Die sizes differ: 178 mm² versus 243 mm².

Cache allocations differ at every level. L1 per core is 64 KB versus 192 KB. L2 per core is 1 MB versus 3 MB. L3 shared is 16 MB versus 20 MB. Memory bandwidth differs: 89.6 GB/s versus 102.4 GB/s. ECC support differs: present on AMD, absent on Intel. PCIe generation differs: Gen 4 versus Gen 5, with the same 20-lane count. Integrated graphics differ: Radeon 760M versus Arc Xe-LPG Graphics 16EU.

Market segments differ: mobile versus desktop. Release dates differ: April 1, 2024 versus December 31, 2024. The Intel processor has recorded benchmark scores and a percentile ranking of 82, while the AMD processor has no recorded scores and a percentile ranking of 50. Neither processor has a launch MSRP, an unlocked multiplier, or a known part number in the database.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 5 225T has 10 cores and 10 threads. The AMD Ryzen Embedded 8645HS has 6 cores and 12 threads. The Intel part has more physical cores, while the AMD part has more threads due to simultaneous multithreading.

Q: What are the clock speeds of each processor?

A: The AMD Ryzen Embedded 8645HS has a base clock of 4.30 GHz and a boost clock of 5.00 GHz. The Intel Core Ultra 5 225T has a base clock of 2.50 GHz and a boost clock of 4.90 GHz.

Q: Which processor supports ECC memory?

A: The AMD Ryzen Embedded 8645HS supports ECC memory. The Intel Core Ultra 5 225T does not support ECC memory.

Q: What is the Intel Core Ultra 5 225T's benchmark standing relative to its nearest rivals?

A: The Intel processor has an average benchmark score of 30,468 and sits in the 82nd percentile. It is 0.2% ahead of the Intel Core i9-11980HK, 0.3% ahead of the AMD Ryzen 5 7640HS, 0.3% ahead of the AMD Ryzen 7 7736U, and 0.3% behind the Intel Core i5-13600H.

Q: What are the cache sizes for each processor?

A: The AMD processor has 64 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 20 MB of shared L3.

Q: What memory bandwidth does each processor support?

A: The AMD Ryzen Embedded 8645HS supports 89.6 GB/s of memory bandwidth. The Intel Core Ultra 5 225T supports 102.4 GB/s of memory bandwidth. Both use DDR5 memory with dual-channel buses.