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

Head-to-Head Benchmarks

The recorded data for the AMD Ryzen Embedded 9900X contains no benchmark scores, leaving the Intel Core Ultra 9 285HX as the only unit with measurable results in this comparison. The Intel part's average benchmark score is 76155, placing it at the 95th percentile of all CPUs in the database. Its nearest rivals show how tightly grouped the competition is: the AMD Ryzen 9 8945HX scores 76212, a delta of -0.1%; the AMD EPYC Embedded 8224P scores 76492, a delta of -0.4%; the AMD Ryzen Threadripper PRO 9945WX scores 76513, a delta of -0.5%; and the AMD Ryzen 9 9950X3D scores 75779, a delta of 0.5%. These deltas are all within one percentage point, indicating that the Intel Core Ultra 9 285HX sits in a highly competitive performance band where no single rival holds a decisive aggregate advantage.

In single-threaded workloads, the Intel Core Ultra 9 285HX delivers a Cinebench R15 single-core score of 323.5, a Cinebench R20 single-core score of 2856, and a Cinebench R23 single-core score of 2187.5. The PassMark single-thread score is 4618. These figures show consistent scaling across Cinebench versions, with the R20 single-core result representing the highest raw number among the three. The R23 score is lower than R20 despite being a newer benchmark, which reflects the different workload characteristics of each test version rather than a performance regression.

For multi-threaded performance, the Intel part scores 5656.5 in Cinebench R15 multicore, 20236 in Cinebench R20 multicore, and 36429.5 in Cinebench R23 multicore. The PassMark multithread score is 56902. The jump from R15 to R20 is substantial, and the R23 result extends that trend further, indicating that the 24 threads scale effectively as the workload becomes more demanding. The doubling of threads relative to the AMD part's 24 threads versus 12 cores is not directly measurable here because the AMD unit has no recorded scores, but the Intel unit's multi-thread results are internally consistent across all three Cinebench versions.

In targeted PassMark subtests, the Intel Core Ultra 9 285HX shows particular strengths. The data compression score is 631885, which is the highest single subtest value recorded for this part. Data encryption scores 48567, extended instructions scores 49148, floating point math scores 194998, integer math scores 155076, and random string sorting scores 77196. The find prime numbers score is 460, which is notably lower than the other subtests, reflecting the nature of that workload rather than a general weakness. The physics score is 3476.

Where Each One Wins

Without benchmark data for the AMD Ryzen Embedded 9900X, the win analysis is limited to the Intel Core Ultra 9 285HX and its position relative to the nearest rivals in the database. The Intel part's aggregate score of 76155 places it just 0.1% behind the AMD Ryzen 9 8945HX, which is the closest competitor. This means that in overall average benchmark performance, the Intel part effectively matches that AMD rival, with the difference being negligible in practical terms.

Against the AMD EPYC Embedded 8224P, the Intel part trails by 0.4%, and against the AMD Ryzen Threadripper PRO 9945WX, it trails by 0.5%. These are small margins, but they indicate that the server-class and workstation-class AMD parts hold a slight edge in aggregate scoring. Against the AMD Ryzen 9 9950X3D, the Intel part leads by 0.5%, showing that it can outperform a high-end desktop AMD part with 3D V-Cache technology.

The Intel part's 95th percentile ranking means it outperforms the vast majority of CPUs in the database. The AMD Ryzen Embedded 9900X, by contrast, has a percentile rank of 50 and an average benchmark score of 0, which reflects the absence of recorded benchmark data rather than actual performance. This creates an incomplete comparison: the Intel part has a full benchmark profile, while the AMD part has none.

For applications that favor higher thread counts, the Intel Core Ultra 9 285HX's 24 threads provide a strong foundation, as evidenced by the Cinebench multicore scores. For single-thread-sensitive workloads, the R23 single-core score of 2187.5 and PassMark single-thread score of 4618 indicate solid per-core performance. The data does not allow a direct comparison of where the AMD part would win, because no scores exist for it in the database.

Architecture Differences

The AMD Ryzen Embedded 9900X is built on the Granite Ridge architecture, part of the Ryzen Embedded generation using Zen 5 cores. The Intel Core Ultra 9 285HX uses the Arrow Lake architecture, specifically Arrow Lake-HX, and belongs to the Ultra 9 generation. Both are active production parts, but they target different market segments: the AMD part is classified as a desktop processor, while the Intel part is classified as mobile.

The manufacturing process differs: the AMD part uses a 4 nm node at TSMC, while the Intel part uses a 3 nm node, also at TSMC. The Intel part has a larger transistor count at 17,800 million versus 16,630 million for the AMD part. The die size also differs substantially: the AMD part uses two chiplets of 70.6 mm² each, totaling approximately 141.2 mm² across both dies, while the Intel part uses a single monolithic die of 243 mm². This structural difference reflects distinct design philosophies: the AMD part's chiplet approach allows for modular scaling, while the Intel part's monolithic die consolidates all components onto one piece of silicon.

Cache layouts diverge significantly. The AMD part provides 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of shared L3 cache. The Intel part provides 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 36 MB of shared L3 cache. Per-core cache is larger on the Intel part for L1 and L2, but the AMD part has nearly double the L3 capacity. The AMD part has no 3D V-Cache option listed, and neither part lists a total L3 figure beyond the shared amounts.

Both parts support DDR5 memory and dual-channel memory buses. The memory bandwidth figures differ: the AMD part lists 89.6 GB/s, while the Intel part lists 102.4 GB/s. Both support ECC memory. PCIe connectivity also differs: the AMD part provides Gen 5 with 24 lanes, while the Intel part provides Gen 5 with 20 lanes. Both have integrated graphics, with the AMD part using Radeon Graphics and the Intel part using Arc Xe-LPG Graphics 64EU. Both have unlocked multipliers.

Specification Differences

The core and thread counts differ: the AMD Ryzen Embedded 9900X has 12 cores and 24 threads, while the Intel Core Ultra 9 285HX has 24 cores and 24 threads. This means the Intel part has twice as many physical cores but the same number of threads, indicating that the AMD part relies on simultaneous multithreading while the Intel part does not.

Clock speeds differ. The AMD part has a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The Intel part has a base clock of 2.80 GHz and a boost clock of 5.50 GHz. The AMD part runs at a higher base frequency, while the boost clocks are nearly identical, with the AMD part leading by 0.10 GHz.

Thermal design power differs considerably: the AMD part is rated at 120 W, while the Intel part is rated at 55 W. This is a significant gap, with the Intel part drawing less than half the TDP of the AMD part while offering more physical cores. The socket types differ as well: the AMD part uses AMD Socket AM5, while the Intel part uses Intel BGA 2114, reflecting the desktop versus mobile market split.

Release dates differ by roughly nine months: the AMD part was released on 2025-10-06, while the Intel part was released on 2025-01-12. The part numbers also differ: the AMD part is 100-000000662E, and the Intel part is SRVFJ. Neither part has a launch MSRP recorded in the database. Both have unlocked multipliers. The Intel part has a full set of benchmark scores and an average score of 76155, while the AMD part has no benchmark scores and an average score of 0.

FAQ

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

A: The Intel part scores 76155 on average, which is 0.1% behind the AMD Ryzen 9 8945HX, 0.4% behind the AMD EPYC Embedded 8224P, 0.5% behind the AMD Ryzen Threadripper PRO 9945WX, and 0.5% ahead of the AMD Ryzen 9 9950X3D.

Q: What are the single-thread benchmark results for the Intel Core Ultra 9 285HX?

A: The recorded single-thread scores are 323.5 in Cinebench R15, 2856 in Cinebench R20, 2187.5 in Cinebench R23, and 4618 in PassMark single-thread.

Q: What are the multi-thread benchmark results for the Intel Core Ultra 9 285HX?

A: The recorded multi-thread scores are 5656.5 in Cinebench R15, 20236 in Cinebench R20, 36429.5 in Cinebench R23, and 56902 in PassMark multithread.

Q: How do the core counts and threads compare between the two processors?

A: The AMD Ryzen Embedded 9900X has 12 cores and 24 threads, while the Intel Core Ultra 9 285HX has 24 cores and 24 threads. The Intel part has twice as many physical cores but does not use multithreading, while the AMD part uses multithreading to reach 24 threads from 12 cores.

Q: What is the TDP difference between the two processors?

A: The AMD Ryzen Embedded 9900X is rated at 120 W, while the Intel Core Ultra 9 285HX is rated at 55 W. The Intel part uses less than half the thermal design power of the AMD part.

Q: Which processor has higher clock speeds?

A: The AMD Ryzen Embedded 9900X has a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The Intel Core Ultra 9 285HX has a base clock of 2.80 GHz and a boost clock of 5.50 GHz. The AMD part leads in both base and boost frequencies.

Q: Does the AMD Ryzen Embedded 9900X have any benchmark scores in the database?

A: No benchmark scores are recorded for the AMD Ryzen Embedded 9900X. Its average benchmark score is 0, and its percentile rank is 50. The Intel Core Ultra 9 285HX has a full set of 17 recorded benchmark scores and ranks at the 95th percentile.