AMD Ryzen Embedded 9900X vs Intel Core Ultra 7 255H Comparison

Head-to-Head Benchmarks

The recorded data contains a full benchmark suite for the Intel Core Ultra 7 255H, while the AMD Ryzen Embedded 9900X has no benchmark scores in the database. This makes the comparison one-sided in terms of measured performance, but the specification differences still provide a clear picture of what each processor is designed to do.

The Intel Core Ultra 7 255H delivers strong multi-threaded results across every major rendering test. In Cinebench R23, the multicore score reaches 9240, with a single-core score of 1843. The R20 run shows 6381 multicore and 900 single-core, while the older R15 test produces 1515 multicore and 251 single-core. These numbers indicate a processor that handles both heavily threaded workloads and lightly threaded tasks with consistent competence.

Geekbench results follow the same pattern. The multicore score of 14024 places the chip in a solid position for productivity applications, and the single-core score of 2335 shows good responsiveness for everyday tasks. The PassMark suite reinforces this with a multithread score of 30703 and a single-thread score of 4317 (listed twice in the database under slightly different test names, both with identical values).

Specialized PassMark tests reveal specific strengths. Floating point math scores 98796, integer math scores 77975, and extended instructions reach 23755. Data encryption hits 23395, while data compression performs at 298850. Random string sorting completes at 36058, and prime number finding scores 303. The physics test delivers 2254.

The percentile ranking places the Intel chip at 83, meaning it outperforms the majority of CPUs in the database. Its average benchmark score of 33537 places it in close competition with several rivals. The AMD Ryzen 5 240 sits at 33542, a delta of 0%. The AMD Ryzen 7 8840HS scores 33667, which is 0.4% higher. The AMD Ryzen 5 7645HX also scores 33667, again 0.4% higher. The Intel Core i5-12600HX scores 33375, putting the Core Ultra 7 255H 0.5% ahead.

Where Each One Wins

The Intel Core Ultra 7 255H wins outright in every measured benchmark category because it is the only one of the two with recorded scores. The data shows no benchmark results for the AMD Ryzen Embedded 9900X, so the database cannot confirm any performance advantage for that chip in specific tests.

For use cases, the Intel chip demonstrates clear strengths. The high Cinebench multicore results (9240 in R23, 6381 in R20, 1515 in R15) point to strong performance in rendering, video encoding, and other heavily threaded creative workloads. The Geekbench multicore score of 14024 supports this interpretation. PassMark floating point math at 98796 and integer math at 77975 indicate solid number-crunching capability for scientific or financial computations.

The single-core scores (1843 in Cinebench R23, 2335 in Geekbench, 4317 in PassMark) show that the chip does not sacrifice light-threaded performance. This makes it suitable for general desktop work, web browsing, and office applications where single-thread speed matters most.

The AMD Ryzen Embedded 9900X, by contrast, has no recorded benchmark wins. Its specifications suggest it targets different priorities, such as high core counts for embedded systems, but the database provides no measured performance data to confirm how it handles specific workloads. The architecture and feature set, detailed below, indicate its intended use case rather than demonstrated results.

Architecture Differences

The two processors come from opposite ends of the computing spectrum. The AMD Ryzen Embedded 9900X belongs to the 9000 series, uses the Granite Ridge codename, and is built on the Zen 5 architecture. The Intel Core Ultra 7 255H is part of the Core Ultra Series 2, uses the Arrow Lake-H codename, and is built on the Arrow Lake architecture.

The production processes differ. AMD uses a 4 nm node from TSMC, while Intel uses a 3 nm node, also from TSMC. The AMD chip contains 16,630 million transistors across a die size of 2x 70.6 mm². The Intel chip has no transistor count or die size listed in the database.

Core and thread counts diverge significantly. The AMD processor has 12 cores and 24 threads, while the Intel processor has 16 cores and 16 threads. This means the AMD chip relies on simultaneous multithreading to double its thread count, while the Intel chip operates with one thread per core.

Clock speeds show different priorities. The AMD chip runs at a base clock of 4.40 GHz and boosts to 5.60 GHz. The Intel chip has a base clock of 2.00 GHz and boosts to 5.10 GHz. The 2.40 GHz gap in base clocks reflects the Intel chip's mobile focus on power efficiency, while the 0.50 GHz boost clock advantage for AMD shows its performance-oriented design.

Cache configurations differ substantially. The AMD chip provides 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. The Intel chip provides 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 24 MB of shared L3 cache. The AMD chip offers more total L3 cache (64 MB versus 24 MB), while the Intel chip offers more per-core L1 and L2.

Memory support shows similarities and differences. Both support DDR5 memory and use a dual-channel bus. The AMD chip has a memory bandwidth of 89.6 GB/s, while the Intel chip reaches 102.4 GB/s. The Intel chip also supports LPDDR5X memory in addition to DDR5. Both support ECC memory.

PCIe connectivity differs. The AMD chip provides Gen 5 with 24 lanes (CPU only), while the Intel chip provides Gen 5 with 20 lanes (CPU only). This gives the AMD chip four additional PCIe lanes for expansion.

Integrated graphics differ as well. The AMD chip uses Radeon Graphics, while the Intel chip uses Arc Graphics 140T. The database does not provide performance comparisons for these integrated GPUs.

The AMD chip has an unlocked multiplier, while the Intel chip does not. This makes the AMD processor overclockable, assuming the rest of the platform supports it. The socket types also differ: the AMD chip uses AMD Socket AM5, while the Intel chip uses Intel BGA 2049, indicating a soldered mobile mount.

Release dates differ by roughly nine months. The Intel chip launched on 2025-01-12, while the AMD chip launched on 2025-10-06. Both are currently marked as Active in production status. The AMD chip targets the Desktop market segment, while the Intel chip targets Mobile. The AMD part number is 100-000000662E, and the Intel part number is SRQAN.

The Verdict

The data presents a clear split. The Intel Core Ultra 7 255H has extensive benchmark coverage and a percentile ranking of 83, indicating it performs better than most CPUs in the database. Its average benchmark score of 33537 places it within 0.5% of several close rivals, including the AMD Ryzen 5 240, the AMD Ryzen 7 8840HS, and the AMD Ryzen 5 7645HX. The measured results confirm its capability across rendering, productivity, and math-heavy workloads.

The AMD Ryzen Embedded 9900X has no benchmark scores, no percentile ranking, and no average score. Its specifications show a desktop-oriented processor with 12 cores, 24 threads, high base and boost clocks (4.40 GHz and 5.60 GHz), and a large 64 MB L3 cache. The unlocked multiplier and AM5 socket suggest an enthusiast or embedded workstation use case.

Who should pick which? Strictly from the data, the Intel chip has demonstrated performance and a proven track record in the database. The AMD chip offers a different feature set, including more threads per core, a larger L3 cache, more PCIe lanes, and a higher boost clock, but none of these advantages appear in measured benchmark results. The choice depends on whether the buyer values verified performance or the specific architectural features that the AMD chip provides. For anyone who needs a processor with confirmed benchmark results, the Intel chip is the only option with data. For those who need an embedded desktop processor with high clock speeds and extensive cache, the AMD chip offers those specifications, but the database cannot confirm how they translate into real-world performance.

FAQ

Q: What is the average benchmark score for each processor?

A: The Intel Core Ultra 7 255H has an average benchmark score of 33537. The AMD Ryzen Embedded 9900X has an average benchmark score of 0, as the database contains no benchmark results for it.

Q: How does the Intel Core Ultra 7 255H compare to its nearest rivals?

A: The Intel chip ranks at the 83rd percentile. It scores 0% different from the AMD Ryzen 5 240 (33542), 0.4% below the AMD Ryzen 7 8840HS (33667), 0.4% below the AMD Ryzen 5 7645HX (33667), and 0.5% above the Intel Core i5-12600HX (33375).

Q: Which processor has more cores and threads?

A: The AMD Ryzen Embedded 9900X has 12 cores and 24 threads. The Intel Core Ultra 7 255H has 16 cores and 16 threads. The AMD chip uses two threads per core, while the Intel chip uses one.

Q: What are the clock speed differences?

A: The AMD chip has a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The Intel chip has a base clock of 2.00 GHz and a boost clock of 5.10 GHz. The AMD chip runs 2.40 GHz higher at base and 0.50 GHz higher at boost.

Q: What memory technologies does each support?

A: Both support DDR5 memory with a dual-channel bus. The Intel chip also supports LPDDR5X. The AMD chip has a memory bandwidth of 89.6 GB/s, while the Intel chip has 102.4 GB/s. Both support ECC memory.

Q: What are the production process and release dates?

A: The AMD chip uses a 4 nm TSMC process and released on 2025-10-06. The Intel chip uses a 3 nm TSMC process and released on 2025-01-12. Both are Active in production status.

Specification Differences

| Field | AMD Ryzen Embedded 9900X | Intel Core Ultra 7 255H |

|---|---|---|

| Series | 9000 series | Core Ultra Series 2 |

| Codename | Granite Ridge | Arrow Lake-H |

| Architecture | Zen 5 (Granite Ridge) | Arrow Lake |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | TSMC |

| Transistors | 16,630 million | Not listed |

| Die Size | 2x 70.6 mm² | Not listed |

| Cores | 12 | 16 |

| Threads | 24 | 16 |

| Base Clock | 4.40 GHz | 2.00 GHz |

| Boost Clock | 5.60 GHz | 5.10 GHz |

| TDP | 120 W | 28 W |

| Socket | AMD Socket AM5 | Intel BGA 2049 |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 1 MB (per core) | 3 MB (per core) |

| L3 Cache | 64 MB | 24 MB (shared) |

| Memory Support | DDR5 | DDR5, LPDDR5X |

| Memory Bandwidth | 89.6 GB/s | 102.4 GB/s |

| PCIe | Gen 5, 24 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics | Arc Graphics 140T |

| Market Segment | Desktop | Mobile |

| Multiplier Unlocked | Yes | No |

| Part Number | 100-000000662E | SRQAN |

| Release Date | 2025-10-06 | 2025-01-12 |