AMD Ryzen Embedded 9900X vs Intel Core Ultra 9 285 Comparison

Head-to-Head Benchmarks

The database does not contain direct head-to-head benchmark entries for these two processors. However, the recorded data for the Intel Core Ultra 9 285 provides a substantial portrait of its measured performance across Cinebench and Passmark workloads. The absence of corresponding scores for the AMD Ryzen Embedded 9900X means the comparison must be built from the Intel part's absolute scores and its percentile standing, rather than from matched test pairs.

The Intel Core Ultra 9 285 delivers a Cinebench R23 multi-core score of 48,945 and a single-core score of 6,909. In Cinebench R20, it records 20,556 multi-core and 2,901 single-core. The R15 run shows 4,933 multi-core and 696 single-core. These results indicate a strong scaling pattern across the three Cinebench generations, with the multi-core figures rising consistently as the workload scales.

Passmark results for the Intel part are equally detailed. The multi-thread score is 56,602, while the single-thread score is 4,881. In the component math tests, integer math reaches 164,869, floating point math reaches 194,988, and extended instructions score 45,357. The prime number finding test produces 459, random string sorting scores 73,651, data compression hits 602,121, data encryption reaches 46,949, and the physics test records 3,598. These numbers place the Intel chip at the 95th percentile among all CPUs in the database, with an average benchmark score of 75,488.

The nearest rivals in the database for the Intel Core Ultra 9 285 include the AMD EPYC 8224P with an average score of 75,582 and a delta of -0.1%, the AMD EPYC 4545P at 75,373 with a delta of 0.2%, the AMD Ryzen 7 PRO 9755X3D at 75,716 with a delta of -0.3%, and the AMD Ryzen 7 PRO 9755 at 75,738 with a delta of -0.3%. All four rivals sit within a narrow band around the Intel part, indicating that the Core Ultra 9 285 is positioned in a tightly contested performance cluster. The largest gap among these is the 0.2% delta to the EPYC 4545P, which is effectively a statistical tie in aggregate scoring.

Because the AMD Ryzen Embedded 9900X has no benchmark entries in the database, its wins and losses cannot be quantified. The data records zero wins for the AMD part and zero wins for the Intel part in the head-to-head field. The comparison therefore relies on architectural and specification differences, while the benchmark narrative belongs entirely to the Intel side.

The Verdict

From the recorded data alone, the Intel Core Ultra 9 285 is the only one of the two with measurable benchmark results. Its 95th percentile standing and average score of 75,488 show that it performs at a high level relative to the broader database. The AMD Ryzen Embedded 9900X carries no benchmark scores, so no performance verdict can be derived from measurements for that part.

The data indicates that the Intel chip is surrounded by four AMD EPYC and Ryzen PRO processors within a 0.3% band of aggregate scores. This suggests that the Core Ultra 9 285 does not dominate its immediate rivals, but rather trades places with them depending on the exact workload mix. The AMD Ryzen 7 PRO 9755 and Ryzen 7 PRO 9755X3D both edge it by 0.3%, while the EPYC 8224P edges it by 0.1%. Only the EPYC 4545P trails, by 0.2%.

For a buyer strictly following the database, the Intel Core Ultra 9 285 is a validated high-percentile performer. The AMD Ryzen Embedded 9900X cannot be assessed from benchmarks, only from its specifications. The verdict from the data is therefore conditional: the Intel part has demonstrated scores, the AMD part has none recorded. Any choice between them based on measured performance must favor the Intel chip, since it is the only one with evidence in the database.

Architecture Differences

The two processors diverge sharply in their internal design. The AMD Ryzen Embedded 9900X uses the Granite Ridge codename and is built on Zen 5 architecture, fabricated on a 4 nm process by TSMC. It integrates 16,630 million transistors across a die size listed as two 70.6 mm² dies. The Intel Core Ultra 9 285 uses the Arrow Lake-S codename, belongs to the Arrow Lake architecture, and is built on a 3 nm process, also by TSMC, with 17,800 million transistors on a single 243 mm² die.

Cache organization differs substantially. The AMD part provides 80 KB of L1 cache per core, 1 MB of L2 per core, and 64 MB of L3 cache. The Intel part provides 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3 cache. The AMD design has a larger total L3 pool, while the Intel design has larger per-core L1 and L2 allocations. There is no 3D V-Cache option recorded for either part.

The AMD processor uses a 12-core, 24-thread configuration with a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The Intel processor uses a 24-core, 24-thread configuration with a base clock of 2.50 GHz and a boost clock of 5.60 GHz. Both reach the same boost ceiling, but the AMD part starts from a much higher base frequency. The AMD chip has an unlocked multiplier; the Intel chip does not.

The integrated graphics also differ. The AMD part lists Radeon Graphics, while the Intel part lists Arc Xe-LPG Graphics with 64 execution units. Both processors support DDR5 memory and dual-channel memory buses, and both support ECC memory. The AMD part has 24 PCIe Gen 5 lanes from the CPU, while the Intel part has 20.

Specification Differences

The socket and platform targets are different. The AMD Ryzen Embedded 9900X uses AMD Socket AM5, while the Intel Core Ultra 9 285 uses Intel Socket 1851. The AMD part belongs to the 9000 series and its generation is listed as Ryzen Embedded with Zen 5, Granite Ridge. The Intel part belongs to the Core Ultra Series 2 and its generation is listed as Ultra 9, Arrow Lake.

Clock speeds show the AMD part at 4.40 GHz base versus the Intel part at 2.50 GHz base, with identical 5.60 GHz boost clocks. The core and thread counts differ: 12 cores and 24 threads for AMD, 24 cores and 24 threads for Intel. The AMD part has a TDP of 120 watts, while the Intel part has a TDP of 65 watts. The Intel part has a launch MSRP of $579; the AMD part has no recorded launch MSRP.

Memory bandwidth differs, with the AMD part at 89.6 GB/s and the Intel part at 102.4 GB/s. The process node differs, 4 nm for AMD and 3 nm for Intel. Transistor counts differ, 16,630 million versus 17,800 million. Die size differs, with the AMD part using two 70.6 mm² dies and the Intel part using a single 243 mm² die. The PCIe lane count differs, 24 for AMD and 20 for Intel. The part numbers are 100-000000662E for AMD and SRQD4 for Intel.

The release dates differ. The AMD part has a release date of October 6, 2025, while the Intel part has a release date of December 31, 2024. Both are listed as Active in production status and both target the desktop market segment. The Intel part has a percentile rank of 95 among all CPUs, while the AMD part sits at the 50th percentile with an average benchmark score of zero, reflecting the absence of recorded benchmark data.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 9 285 has 24 cores, while the AMD Ryzen Embedded 9900X has 12 cores.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen Embedded 9900X and the Intel Core Ultra 9 285 list ECC memory support as true.

Q: What is the boost clock for each processor?

A: Both the AMD Ryzen Embedded 9900X and the Intel Core Ultra 9 285 have a boost clock of 5.60 GHz.

Q: Which processor has a higher base clock?

A: The AMD Ryzen Embedded 9900X has a base clock of 4.40 GHz, which is higher than the Intel Core Ultra 9 285 base clock of 2.50 GHz.

Q: What is the memory bandwidth of the Intel Core Ultra 9 285?

A: The Intel Core Ultra 9 285 has a memory bandwidth of 102.4 GB/s.

Q: How does the Intel Core Ultra 9 285 compare to its nearest rivals in aggregate score?

A: The Intel Core Ultra 9 285 has an average benchmark score of 75,488, which places it within 0.3% of the AMD EPYC 8224P, AMD EPYC 4545P, AMD Ryzen 7 PRO 9755X3D, and AMD Ryzen 7 PRO 9755.

Where Each One Wins

The Intel Core Ultra 9 285 wins in every measured benchmark category, simply because it is the only one of the two with recorded scores. Its Cinebench R23 multi-core score of 48,945 and single-core score of 6,909 demonstrate strong performance in both threaded and single-threaded rendering workloads. The Passmark suite shows particular strength in data compression at 602,121, floating point math at 194,988, and integer math at 164,869. The 95th percentile rank confirms that these scores place it well above the median CPU in the database.

The AMD Ryzen Embedded 9900X wins in no measured benchmark category, as the database contains no scores for it. However, its specifications suggest areas where it could theoretically compete. The higher base clock of 4.40 GHz, the larger L3 cache of 64 MB, and the higher TDP of 120 watts indicate a design aimed at sustained throughput rather than efficiency. The 24 PCIe Gen 5 lanes exceed the Intel part's 20 lanes, which could matter for expansion-heavy workloads.

The Intel part counters with a lower TDP of 65 watts, a smaller 3 nm process node, and a higher memory bandwidth of 102.4 GB/s. Its 24 cores match the AMD part's 24 threads, but without simultaneous multithreading, so the thread counts are identical at 24. The AMD part has 12 physical cores with 24 threads, while the Intel part has 24 physical cores with 24 threads.

For workloads that depend on measured results, the Intel Core Ultra 9 285 is the clear winner in the database. For workloads that depend on architectural traits, the AMD part offers a higher base clock, more L3 cache, and more PCIe lanes. The data does not resolve which of those traits translates into real-world wins, because the AMD part has no benchmark entries. The recorded evidence points one direction; the specification sheet points another.