AMD Ryzen Embedded 9900X vs Intel Core Ultra 9 386H Comparison

The Verdict

The recorded data presents a clear split between two processors aimed at entirely different deployment scenarios. The AMD Ryzen Embedded 9900X is a desktop-class embedded part with 12 cores and 24 threads, built for sustained multi-threaded workloads in fixed installations. The Intel Core Ultra 9 386H is a mobile processor with 16 cores and 16 threads, designed for power-constrained laptop and compact systems. Benchmark results for the Intel part place it at the 88th percentile among all CPUs in the database, with an average benchmark score of 43210. The AMD part currently has no recorded benchmark scores in the database, meaning its percentile sits at 50 with an average score of zero. Consequently, the Intel Core Ultra 9 386H is the only one of the two with measurable performance data, and it compares closely to several established desktop processors. Its nearest rivals include the AMD Ryzen AI Max PRO 385 (average score 43326, delta -0.3%), the AMD Ryzen AI 9 465 (average score 43431, delta -0.5%), the Intel Core i9-12900 (average score 42906, delta +0.7%), and the Intel Core i9-12900KF (average score 42830, delta +0.9%). These deltas are all under one percent, indicating that the 386H performs within a narrow band of these well-known chips. The AMD Ryzen Embedded 9900X, lacking benchmark entries, cannot be ranked or compared through measured scores. The data suggests that buyers needing verified performance figures should consider the Intel part, while those requiring a specific embedded socket and ECC memory support may select the AMD part based on its feature set rather than benchmark data.

Architecture Differences

The two processors diverge fundamentally in their underlying design. The AMD Ryzen Embedded 9900X belongs to the 9000 series and uses the Granite Ridge codename, built on the Zen 5 architecture. It is manufactured on a 4 nm process node at TSMC, with 16,630 million transistors spread across two chiplets, each with a die size of 70.6 mm². The Intel Core Ultra 9 386H is part of the Core Ultra Series 3, uses the Panther Lake codename, and is built on Intel's 3 nm process node at Intel's own foundry. The AMD part has 12 cores and 24 threads, while the Intel part has 16 cores and 16 threads, meaning the Intel chip relies on a 1:1 core-to-thread ratio while the AMD chip uses simultaneous multithreading. Clock speeds differ substantially: the AMD processor has a base clock of 4.40 GHz and a boost clock of 5.60 GHz, whereas the Intel processor has a base clock of 2.10 GHz and a boost clock of 4.90 GHz. The AMD part is socketed for AMD Socket AM5, while the Intel part is soldered to Intel BGA 2540. The AMD chip has an unlocked multiplier, allowing overclocking, while the Intel chip has a locked multiplier. Cache hierarchies also differ: the AMD part provides 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. The Intel part provides 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. Process node, cache layout, and thread strategy all point to different design priorities: the AMD chip maximizes clock speed and cache capacity, while the Intel chip balances core count with lower power draw.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two processors, and the AMD Ryzen Embedded 9900X has no individual benchmark scores recorded. The Intel Core Ultra 9 386H, however, has a full suite of recorded measurements. In Cinebench R15 multi-core, it scores 3223, and in single-core it scores 303.5. In Cinebench R20, the multi-core score is 12820, with a single-core score of 1809. In Cinebench R23, the multi-core score reaches 20547, and the single-core score is 2071.5. Passmark results show a multi-thread score of 35399, a single-thread score of 4218, and a single-thread score of 4218 (the database lists this value twice). Additional Passmark tests include data compression at 352365, data encryption at 27150, extended instructions at 29138, prime number finding at 341, floating point math at 108527, integer math at 87284, physics at 3028, and random string sorting at 42135. The average benchmark score for the Intel part is 43210, placing it at the 88th percentile. Without corresponding AMD data, a direct numerical comparison is impossible. What the data does show is that the Intel part, despite its mobile designation and 25 W TDP, produces scores that rival desktop processors like the Intel Core i9-12900 and the Intel Core i9-12900KF, both of which have average scores within one percent of the 386H. The AMD Ryzen Embedded 9900X, with its 120 W TDP and much higher boost clock, would plausibly generate different results, but the absence of recorded measurements prevents any quantitative assessment. The only conclusion the data supports is that the Intel processor has verifiable performance, while the AMD processor does not have any in the database.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 9 386H has 16 cores, while the AMD Ryzen Embedded 9900X has 12 cores. However, the AMD part has 24 threads due to simultaneous multithreading, whereas the Intel part has only 16 threads.

Q: What is the process node for each chip?

A: The AMD Ryzen Embedded 9900X is fabricated on a 4 nm node at TSMC. The Intel Core Ultra 9 386H is fabricated on a 3 nm node at Intel.

Q: Does either processor support ECC memory?

A: The AMD Ryzen Embedded 9900X supports ECC memory. The Intel Core Ultra 9 386H does not support ECC memory.

Q: What is the TDP difference between the two?

A: The AMD Ryzen Embedded 9900X has a TDP of 120 W. The Intel Core Ultra 9 386H has a TDP of 25 W.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen Embedded 9900X has a boost clock of 5.60 GHz, which is higher than the Intel Core Ultra 9 386H's boost clock of 4.90 GHz.

Q: Are there any benchmark scores recorded for the AMD processor?

A: The database contains no benchmark scores for the AMD Ryzen Embedded 9900X. The Intel Core Ultra 9 386H has multiple recorded scores, including a Cinebench R23 multi-core score of 20547 and a Passmark multi-thread score of 35399.

Where Each One Wins

Based strictly on the recorded data, the Intel Core Ultra 9 386H wins in every measurable performance category because it is the only processor with benchmark entries. Its scores across Cinebench R15, R20, R23, and Passmark place it at the 88th percentile of all CPUs in the database. The nearest rival comparisons show it performs within 0.3% to 0.9% of the AMD Ryzen AI Max PRO 385, the AMD Ryzen AI 9 465, the Intel Core i9-12900, and the Intel Core i9-12900KF. This indicates that the 386H delivers desktop-class multi-threaded performance in a mobile package. The AMD Ryzen Embedded 9900X has no recorded scores, so it cannot be said to win any benchmark comparison in the database. However, the AMD part does have features that may be decisive for specific applications. It supports ECC memory, which the Intel part does not. It uses AMD Socket AM5, a socketed form factor, while the Intel part uses the soldered Intel BGA 2540. The AMD part has an unlocked multiplier, enabling overclocking, whereas the Intel part is locked. The AMD part also provides more PCIe lanes: Gen 5 with 24 lanes on the CPU, compared to Gen 5 with 12 lanes on the Intel part. For memory bandwidth, the Intel part records 115.2 GB/s, which is higher than the AMD part's 89.6 GB/s. The Intel part supports both DDR5 and LPDDR5X memory, while the AMD part supports only DDR5. The Intel part also has a larger L1 cache per core at 192 KB, versus 80 KB on the AMD part, and a larger L2 cache per core at 2.5 MB, versus 1 MB. The AMD part counters with a much larger L3 cache at 64 MB, versus 18 MB on the Intel part. The AMD part has a higher base clock of 4.40 GHz and boost clock of 5.60 GHz, compared to 2.10 GHz base and 4.90 GHz boost on the Intel part. The AMD part also has double the threads at 24 versus 16. The Intel part wins on process node (3 nm vs 4 nm), memory bandwidth, and cache-per-core metrics. The AMD part wins on socket flexibility, ECC support, overclocking, PCIe lane count, L3 cache size, and clock speeds. In the absence of AMD benchmark data, the Intel part is the only one with proven performance, making it the default choice for any workload requiring verified speed.

Specification Differences

The two processors differ across nearly every specification field in the database. The AMD Ryzen Embedded 9900X has 12 cores and 24 threads, while the Intel Core Ultra 9 386H has 16 cores and 16 threads. The AMD base clock is 4.40 GHz versus 2.10 GHz for the Intel part. The AMD boost clock is 5.60 GHz versus 4.90 GHz for the Intel part. TDP is 120 W for the AMD part and 25 W for the Intel part. The AMD socket is AMD Socket AM5, while the Intel socket is Intel BGA 2540. The AMD codename is Granite Ridge, and the Intel codename is Panther Lake. The AMD generation is listed as Ryzen Embedded (Zen 5 (Granite Ridge)), and the Intel generation is listed as Ultra 9 (Panther Lake-H). The process node is 4 nm for AMD and 3 nm for Intel. The foundry is TSMC for AMD and Intel for Intel. Transistor count is 16,630 million for AMD, with no figure listed for Intel. Die size is 2x 70.6 mm² for AMD, with no figure for Intel. L1 cache is 80 KB per core for AMD and 192 KB per core for Intel. L2 cache is 1 MB per core for AMD and 2.5 MB per core for Intel. L3 cache is 64 MB for AMD and 18 MB shared for Intel. Memory support is DDR5 for AMD and DDR5 plus LPDDR5X for Intel. Memory bus is dual-channel for both. Memory bandwidth is 89.6 GB/s for AMD and 115.2 GB/s for Intel. ECC memory is supported on AMD and not on Intel. PCIe is Gen 5 with 24 lanes for AMD and Gen 5 with 12 lanes for Intel. Integrated graphics are Radeon Graphics for AMD and Intel Xe3 Graphics for Intel. The market segment is Desktop for AMD and Mobile for Intel. Both are marked as Active in production status. The AMD release date is 2025-10-06, and the Intel release date is 2026-01-04. The AMD multiplier is unlocked, while the Intel multiplier is locked. Part numbers are 100-000000662E for AMD and SA4R5Q9EH for Intel. The AMD processor has no launch MSRP listed, and the Intel processor also has no launch MSRP listed. The AMD processor has a percentile rank of 50 among all CPUs, while the Intel processor has a percentile rank of 88. The average benchmark score is zero for AMD and 43210 for Intel. The Intel processor has 17 recorded benchmark entries across Cinebench and Passmark tests, while the AMD processor has none. The Intel processor has four nearest rivals listed with average scores and deltas, while the AMD processor has none. These specification differences confirm that the two parts are designed for different roles: the AMD chip emphasizes raw clock speed, cache capacity, and expandability, while the Intel chip prioritizes lower power, higher memory bandwidth, and compact integration.