AMD Ryzen AI Max 385 vs AMD Ryzen Embedded 9900X3D Comparison

Where Each One Wins

The benchmark data for this comparison is one-sided. The AMD Ryzen AI Max 385 has a full suite of measured scores across Cinebench and Passmark tests, while the AMD Ryzen Embedded 9900X3D has no recorded benchmark results in the database. This means the Ryzen AI Max 385 holds all recorded wins by default, but the absence of data for the Embedded 9900X3D should not be read as a performance verdict. It simply means the database has no measurements for that part yet.

The Ryzen AI Max 385 posts a percentile rank of 88 against all CPUs in the database, with an average benchmark score of 44309. Its nearest rivals confirm it sits in a competitive mid-to-high tier. The Intel Core i9-13950HX scores 44342 on average, which is 0.1% higher than the Ryzen AI Max 385. The Intel Core Ultra X9 388H scores 44466, 0.4% higher. On the other side, the Intel Core i5-13600 scores 44240, 0.2% lower, and the AMD Ryzen 5 7500X3D scores 44573, 0.6% higher. The Ryzen AI Max 385 therefore lands within a narrow band of roughly 0.6% below to 0.2% above its nearest rivals.

The Ryzen Embedded 9900X3D, by contrast, has a percentile rank of 50 and an average benchmark score of 0, with no nearest rivals listed. The database records no Cinebench or Passmark results for it. In terms of measurable wins, the Ryzen AI Max 385 wins every category where a score exists, but that is a function of data availability rather than a head-to-head outcome.

Architecture Differences

Both processors are built by AMD on TSMC's 4 nm process and use a dual-chiplet design with a die size of 2x 70.6 mm². The Ryzen AI Max 385 uses the Zen 5 architecture under the Strix Halo codename, while the Ryzen Embedded 9900X3D also uses Zen 5 but under the Granite Ridge codename. The Ryzen AI Max 385 belongs to the Ryzen AI Max generation, and the Embedded 9900X3D belongs to the Ryzen Embedded series, specifically the 9000 series.

Core counts differ substantially. The Ryzen AI Max 385 has 8 cores and 16 threads. The Ryzen Embedded 9900X3D has 12 cores and 24 threads, a 50% increase in both core and thread counts. Clock speeds also favor the Embedded part. The Ryzen AI Max 385 runs a base clock of 3.60 GHz with a boost clock of 5.00 GHz. The Ryzen Embedded 9900X3D runs a base clock of 4.40 GHz and a boost clock of 5.50 GHz. The Embedded part is 0.80 GHz higher at base and 0.50 GHz higher at boost.

Cache configurations differ significantly. Both parts share the same per-core L1 and L2 allocation, 80 KB and 1 MB respectively. The shared L3 cache, however, is much larger on the Embedded 9900X3D. It has 128 MB of L3, while the Ryzen AI Max 385 has only 32 MB. That is a 4x difference in shared cache capacity.

Memory architecture is another clear split. The Ryzen AI Max 385 supports LPDDR5X memory over a quad-channel bus with 256.0 GB/s of bandwidth. The Ryzen Embedded 9900X3D supports DDR5 over a dual-channel bus with 89.6 GB/s of bandwidth. The mobile part delivers roughly 2.86 times the memory bandwidth of the desktop embedded part. Both support ECC memory.

PCIe connectivity also differs. The Ryzen AI Max 385 provides Gen 4 with 16 lanes, while the Ryzen Embedded 9900X3D provides Gen 5 with 24 lanes. The Embedded part has more lanes and a newer generation.

Thermal and power envelopes diverge sharply. The Ryzen AI Max 385 has a TDP of 55 W, while the Ryzen Embedded 9900X3D has a TDP of 120 W. The Embedded part draws more than double the power budget.

The integrated graphics differ as well. The Ryzen AI Max 385 uses the Radeon 8050S, while the Ryzen Embedded 9900X3D uses a generic Radeon Graphics solution. The Ryzen AI Max 385 is classified as a mobile part on AMD Socket FP11, while the Embedded 9900X3D is a desktop part on AMD Socket AM5. The Embedded 9900X3D has an unlocked multiplier, while the Ryzen AI Max 385 does not.

Head-to-Head Benchmarks

Because the database contains no benchmark scores for the AMD Ryzen Embedded 9900X3D, a direct numerical comparison is impossible. The recorded data only covers the Ryzen AI Max 385. Its Cinebench results show a R15 multi-core score of 1579 and a single-core score of 222. In R20, the multi-core score is 6583 and single-core is 929. In R23, the multi-core score is 15674 and single-core is 2212.

Passmark results for the Ryzen AI Max 385 cover a wide range of workloads. The multi-thread score is 33705, and the single-thread score is 4060. Integer math scores 107046, floating point math scores 71105, and extended instructions score 33873. Data compression scores 406505, while data encryption scores 19926. Find prime numbers scores 165, physics scores 1889, and random string sorting scores 43725.

These numbers give a profile of a processor that is strong in integer and floating point workloads, with a particularly high data compression result. The single-thread score of 4060 aligns with a 5.00 GHz boost clock and the Zen 5 architecture. The multi-thread score of 33705 reflects the 8-core, 16-thread configuration.

No comparable figures exist for the Ryzen Embedded 9900X3D. Its higher core count, higher clocks, and larger L3 cache suggest it would likely outperform the Ryzen AI Max 385 in multi-threaded tests, but the database does not provide measurements to confirm that. The verdict must remain data-limited.

FAQ

Q: Which processor has more cores?

A: The AMD Ryzen Embedded 9900X3D has 12 cores and 24 threads, while the AMD Ryzen AI Max 385 has 8 cores and 16 threads.

Q: What is the memory bandwidth difference?

A: The Ryzen AI Max 385 supports LPDDR5X over a quad-channel bus with 256.0 GB/s of bandwidth. The Ryzen Embedded 9900X3D supports DDR5 over a dual-channel bus with 89.6 GB/s of bandwidth.

Q: Which processor has a higher boost clock?

A: The Ryzen Embedded 9900X3D boosts to 5.50 GHz, while the Ryzen AI Max 385 boosts to 5.00 GHz.

Q: How much L3 cache does each processor have?

A: The Ryzen AI Max 385 has 32 MB of shared L3 cache. The Ryzen Embedded 9900X3D has 128 MB of L3 cache.

Q: Which processor is socketed for a desktop platform?

A: The Ryzen Embedded 9900X3D uses AMD Socket AM5 and is classified as a desktop part. The Ryzen AI Max 385 uses AMD Socket FP11 and is classified as a mobile part.

Q: Does the database have benchmark scores for the Ryzen Embedded 9900X3D?

A: No. The database lists no benchmark results for the Ryzen Embedded 9900X3D. Its average benchmark score is recorded as 0, and its percentile rank is 50.

Specification Differences

The two processors differ in the following recorded fields:

• Cores: 8 on the Ryzen AI Max 385, 12 on the Ryzen Embedded 9900X3D
• Threads: 16 on the Ryzen AI Max 385, 24 on the Ryzen Embedded 9900X3D
• Base clock: 3.60 GHz on the Ryzen AI Max 385, 4.40 GHz on the Ryzen Embedded 9900X3D
• Boost clock: 5.00 GHz on the Ryzen AI Max 385, 5.50 GHz on the Ryzen Embedded 9900X3D
• TDP: 55 W on the Ryzen AI Max 385, 120 W on the Ryzen Embedded 9900X3D
• Socket: AMD Socket FP11 on the Ryzen AI Max 385, AMD Socket AM5 on the Ryzen Embedded 9900X3D
• Codename: Strix Halo on the Ryzen AI Max 385, Granite Ridge on the Ryzen Embedded 9900X3D
• Generation: Ryzen AI Max on the Ryzen AI Max 385, Ryzen Embedded on the Ryzen Embedded 9900X3D
• Transistors: not recorded for the Ryzen AI Max 385, 16,630 million for the Ryzen Embedded 9900X3D
• L3 cache: 32 MB shared on the Ryzen AI Max 385, 128 MB on the Ryzen Embedded 9900X3D
• Memory support: LPDDR5X on the Ryzen AI Max 385, DDR5 on the Ryzen Embedded 9900X3D
• Memory bus: quad-channel on the Ryzen AI Max 385, dual-channel on the Ryzen Embedded 9900X3D
• Memory bandwidth: 256.0 GB/s on the Ryzen AI Max 385, 89.6 GB/s on the Ryzen Embedded 9900X3D
• PCIe: Gen 4 with 16 lanes on the Ryzen AI Max 385, Gen 5 with 24 lanes on the Ryzen Embedded 9900X3D
• Integrated graphics: Radeon 8050S on the Ryzen AI Max 385, Radeon Graphics on the Ryzen Embedded 9900X3D
• Market segment: mobile on the Ryzen AI Max 385, desktop on the Ryzen Embedded 9900X3D
• Multiplier unlocked: false on the Ryzen AI Max 385, true on the Ryzen Embedded 9900X3D

Fields that match include the manufacturer, the Zen 5 architecture, the 4 nm process node, the 2x 70.6 mm² die size, the per-core L1 and L2 cache sizes, ECC memory support, the TSMC foundry, and the active production status.

The Verdict

The recorded data supports a clear distinction based on role and workload profile. The AMD Ryzen AI Max 385 is a mobile part with a 55 W TDP, a quad-channel LPDDR5X memory interface delivering 256.0 GB/s, and a Radeon 8050S integrated GPU. Its benchmark scores place it at the 88th percentile, with an average score of 44309, and its nearest rivals are all within a 0.6% band. This is a processor designed for bandwidth-sensitive mobile workloads where power draw matters.

The AMD Ryzen Embedded 9900X3D is a desktop embedded part with a 120 W TDP, 12 cores, 24 threads, a 5.50 GHz boost clock, 128 MB of L3 cache, and PCIe Gen 5 with 24 lanes. It has no recorded benchmark scores, so its performance cannot be quantified from the database. Its specifications suggest a design focused on compute density, cache capacity, and connectivity rather than memory bandwidth or power efficiency.

For a user choosing between the two strictly on recorded data, the Ryzen AI Max 385 is the only part with measurable performance. For a user choosing on specifications, the Ryzen Embedded 9900X3D offers more cores, higher clocks, more cache, and more PCIe lanes, while the Ryzen AI Max 385 offers far higher memory bandwidth and a much lower power envelope. The data does not support a single performance winner because only one side has benchmark results. The appropriate pick depends on whether the workload prioritizes the measured mobile platform or the unmeasured embedded specifications.