AMD Ryzen AI Embedded P185 vs AMD Ryzen Embedded 9950X Comparison

Where Each One Wins

The AMD Ryzen AI Embedded P185 and the AMD Ryzen Embedded 9950X serve fundamentally different market segments, and the recorded data reflects that split clearly. The P185 is a mobile-focused processor with a 28 TDP, designed for systems where power efficiency and integrated graphics matter. The 9950X is a desktop-class embedded part with a 170 TDP, built for sustained multi-threaded workloads where raw core count and cache capacity take priority.

Benchmark results for the P185 show a processor that excels in single-threaded responsiveness and memory-sensitive operations. Its PassMark single-thread score of 3977 places it in the 93rd percentile among all CPUs, indicating strong per-core performance for its class. The data compression score of 374429 and random string sorting score of 40557 suggest the P185 handles data manipulation tasks with considerable agility, likely benefiting from its balanced cache hierarchy and high boost clock.

The 9950X, by contrast, has no recorded benchmark entries in the database. Its average benchmark score is listed as 0, and it holds a 50th percentile ranking among all CPUs. This absence of measured performance data means the analysis must rely on architectural specifications rather than direct test results. The 9950X's 16 cores and 32 threads give it a theoretical advantage in heavily parallel workloads, while its 64 MB of L3 cache provides substantially more on-die storage for dataset-heavy applications.

The use-case split is therefore defined by what the data shows: the P185 has verified benchmark wins in single-thread and memory-intensive operations, while the 9950X offers a larger core count and cache footprint that should favor throughput-oriented tasks, though this remains unverified in the recorded measurements.

Architecture Differences

Both processors share the same 4 nm manufacturing process from TSMC, but their underlying designs diverge significantly. The P185 uses the Gorgon Point codename with a Zen 5 / Zen 5c hybrid architecture, combining high-performance and high-density cores in a 12-core, 24-thread configuration. The 9950X uses the Granite Ridge codename with a pure Zen 5 architecture, featuring 16 cores and 32 threads.

The P185 employs a monolithic die design measuring 233 mm², while the 9950X uses a chiplet layout with two dies, each measuring 70.6 mm², for a combined die area of approximately 141.2 mm². The 9950X also lists 16,630 million transistors, whereas the P185 has no transistor count recorded.

Cache configurations differ notably. Both processors provide 80 KB of L1 cache per core and 1 MB of L2 cache per core, but the L3 cache tells a different story. The P185 has 16 MB of shared L3 cache, while the 9950X offers 64 MB, a fourfold increase. This difference directly impacts how much data can be cached closer to the cores, which matters for workloads with large working sets.

Memory support also diverges. The P185 supports both DDR5 and LPDDR5X memory, while the 9950X supports DDR5 only. Both use dual-channel memory buses and achieve identical peak memory bandwidth of 89.6 GB/s. Both support ECC memory, which is expected for embedded applications.

PCIe connectivity differs substantially. The P185 provides Gen 4 with 16 lanes from the CPU, while the 9950X offers Gen 5 with 28 lanes. This gives the 9950X both a newer PCIe standard and more available lanes for expansion devices, storage, or networking.

Integrated graphics also differ. The P185 includes a Radeon 890M GPU, while the 9950X features a more generically labeled Radeon Graphics solution. The P185's mobile segment placement and lower TDP suggest its integrated graphics are designed for everyday display output and light acceleration, while the 9950X's discrete-oriented desktop design likely provides basic display functionality.

The 9950X has an unlocked multiplier, allowing overclocking, while the P185 does not. The 9950X is also a desktop segment part with a 170 TDP, versus the P185's mobile segment classification with a 28 TDP, a sixfold difference in thermal design power that reflects their different operating environments.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two processors. The P185 has eleven recorded PassMark test scores, while the 9950X has none. This absence of direct comparison data means a side-by-side numerical analysis is not possible from the recorded facts.

What can be analyzed is the P185's performance profile in absolute terms. Its multi-thread score of 31817 and integer math score of 117832 indicate strong parallel throughput for a 12-core mobile part. The floating-point math score of 70587 and extended instructions score of 26544 show capable compute performance for workloads that use SIMD or specialized instruction sets. The physics score of 1772 and find prime numbers score of 129 round out the picture of a balanced mobile processor.

The P185's nearest rivals in the database provide context for its standing. The Intel Core Ultra 7 255HX has an average score of 62738, which is 0.2% lower than the P185's average benchmark score of 62839. The Intel Core i7-13790F scores 63080, putting it 0.4% higher. The Intel Core Ultra 7 265HX scores 63173, 0.5% higher. The AMD Ryzen AI 9 PRO 465 scores 62498, 0.5% lower. These small deltas place the P185 in a tightly contested performance band where no single competitor holds a decisive edge.

For the 9950X, the lack of recorded benchmarks and nearest rivals means its performance must be inferred from specifications alone. Its 16 cores, 5.70 GHz boost clock, and 64 MB L3 cache position it as a processor that should outperform the P185 in multi-threaded workloads, but this is not confirmed by any measured data in the database.

Specification Differences

The two processors differ across nearly every major specification category.

Core and thread counts: the P185 has 12 cores and 24 threads, while the 9950X has 16 cores and 32 threads.

Clock speeds: the P185 has a base clock of 2.00 GHz and a boost clock of 5.10 GHz. The 9950X has a base clock of 4.30 GHz and a boost clock of 5.70 GHz. The 9950X runs faster at both idle and peak frequencies.

Thermal design power: the P185 is rated at 28 TDP, while the 9950X is rated at 170 TDP. This represents a substantial difference in power envelope and cooling requirements.

Socket: the P185 uses AMD Socket FP8, while the 9950X uses AMD Socket AM5.

Codename and generation: the P185 is Gorgon Point from the Ryzen AI Embedded generation using Zen 5 / Zen 5c cores. The 9950X is Granite Ridge from the Ryzen Embedded 9000 series using Zen 5 cores.

Die size: the P185 uses a single 233 mm² die. The 9950X uses two 70.6 mm² dies.

Transistors: the 9950X has 16,630 million transistors. The P185 has no recorded transistor count.

L3 cache: the P185 has 16 MB, while the 9950X has 64 MB.

Memory support: the P185 supports DDR5 and LPDDR5X. The 9950X supports DDR5 only.

PCIe: the P185 uses Gen 4 with 16 CPU lanes. The 9950X uses Gen 5 with 28 CPU lanes.

Integrated graphics: the P185 has a Radeon 890M. The 9950X has Radeon Graphics.

Market segment: the P185 is mobile, while the 9950X is desktop.

Multiplier: the P185 is locked, while the 9950X is unlocked.

Release date: the P185 was released on 2026-02-28, while the 9950X was released on 2025-10-06.

Part number: the 9950X has part number 100-000001277E. The P185's part number is listed as unknown.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Embedded 9950X has 16 cores and 32 threads, while the AMD Ryzen AI Embedded P185 has 12 cores and 24 threads.

Q: What is the difference in L3 cache capacity?

A: The P185 has 16 MB of L3 cache, while the 9950X has 64 MB of L3 cache, a fourfold difference.

Q: Which processor supports LPDDR5X memory?

A: The AMD Ryzen AI Embedded P185 supports both DDR5 and LPDDR5X memory. The AMD Ryzen Embedded 9950X supports DDR5 only.

Q: How do the boost clocks compare?

A: The P185 has a boost clock of 5.10 GHz, while the 9950X has a boost clock of 5.70 GHz, giving the 9950X a 0.60 GHz advantage at peak frequency.

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

A: The P185 is rated at 28 TDP, while the 9950X is rated at 170 TDP, making the 9950X a significantly higher-power part.

Q: Which processor has a higher PCIe specification?

A: The AMD Ryzen Embedded 9950X uses Gen 5 PCIe with 28 CPU lanes, while the AMD Ryzen AI Embedded P185 uses Gen 4 PCIe with 16 CPU lanes.