AMD Ryzen 5 8400F vs AMD Ryzen AI Embedded P185 Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen AI Embedded P185 records an average benchmark score of 62839, while the AMD Ryzen 5 8400F averages 25005. The P185 sits in the 93rd percentile of all CPUs, compared to the 77th percentile for the 8400F.

Q: How do the two processors compare in single-threaded performance?

A: In the PassMark single-thread test, the AMD Ryzen AI Embedded P185 scores 3977, which is 7.3% higher than the AMD Ryzen 5 8400F's score of 3685. Both processors deliver similar single-thread capability, but the P185 holds a measurable edge.

Q: What is the difference in core and thread counts?

A: The AMD Ryzen 5 8400F has 6 cores and 12 threads, while the AMD Ryzen AI Embedded P185 has 12 cores and 24 threads. The P185 doubles both core and thread counts, which directly impacts multi-threaded workloads.

Q: Which processor supports ECC memory?

A: The AMD Ryzen AI Embedded P185 supports ECC memory, while the AMD Ryzen 5 8400F does not. This makes the P185 suitable for reliability-focused embedded applications.

Q: What are the TDP ratings for each processor?

A: The AMD Ryzen 5 8400F has a TDP of 65 watts, while the AMD Ryzen AI Embedded P185 has a TDP of 28 watts. Despite the lower power envelope, the P185 delivers higher benchmark scores across all recorded tests.

Q: Do both processors use the same process node?

A: Yes, both are built on a 4 nm process by TSMC. The AMD Ryzen 5 8400F uses the Zen 4 architecture with the Phoenix codename, while the AMD Ryzen AI Embedded P185 uses Zen 5 / Zen 5c with the Gorgon Point codename.

Architecture Differences

The AMD Ryzen 5 8400F and AMD Ryzen AI Embedded P185 diverge significantly in their architectural foundations. The 8400F belongs to the 8000 series and uses the Zen 4 architecture under the Phoenix codename. It is a desktop processor built for AMD Socket AM5. The P185, in contrast, carries the Gorgon Point codename and employs a hybrid Zen 5 / Zen 5c configuration, targeting the mobile and embedded segment with AMD Socket FP8.

The core counts differ substantially. The 8400F provides 6 cores and 12 threads, while the P185 doubles that to 12 cores and 24 threads. The P185 also has a higher L1 cache at 80 KB per core versus 64 KB per core for the 8400F. Both share the same L2 cache size at 1 MB per core and the same L3 cache at 16 MB shared.

The process node is identical: both use 4 nm technology from TSMC. However, the die size differs, with the 8400F at 178 mm² and the P185 at 233 mm². The transistor count is only recorded for the 8400F at 25,000 million.

Memory support shows a clear split. The 8400F supports DDR5 only, while the P185 supports both DDR5 and LPDDR5X. Both use dual-channel memory buses, but the P185 has a higher memory bandwidth at 89.6 GB/s compared to 83.2 GB/s for the 8400F. The P185 also includes ECC memory support, which the 8400F lacks.

The integrated graphics differ as well. The 8400F has no integrated graphics (N/A), while the P185 includes Radeon 890M graphics. PCIe lanes also differ: the 8400F offers Gen 4 with 20 lanes, while the P185 offers Gen 4 with 16 lanes.

The P185 has a locked multiplier, whereas the 8400F has an unlocked multiplier for overclocking. The 8400F has a launch MSRP of $170, while no MSRP is recorded for the P185.

Head-to-Head Benchmarks

The head-to-head data shows a clean sweep: the AMD Ryzen AI Embedded P185 wins all 11 recorded benchmark comparisons against the AMD Ryzen 5 8400F. The most significant margin comes in PassMark integer math, where the P185 scores 117832 against 74021 for the 8400F, a 37.2% advantage.

Floating point math shows a similar pattern. The P185 records 70587 versus 46217 for the 8400F, a 34.5% lead. Prime number finding favors the P185 by 31%, with scores of 129 and 89 respectively. Physics performance gives the P185 a 24.8% edge, scoring 1772 against 1332.

The multithread benchmark shows the P185 at 31817 versus 24389 for the 8400F, a 23.3% difference. Data compression results put the P185 at 374429 against 288158, a 23% lead. The P185 also wins in extended instructions by 16.5% (26544 vs 22175) and in data encryption by 15.1% (19612 vs 16646).

Random string sorting gives the P185 a 14.7% advantage (40557 vs 34604). The narrowest margin is in single-thread performance, where the P185 scores 3977 against 3685, a 7.3% difference. The database confirms the P185 holds the win in every single recorded test.

Specification Differences

The two processors differ across nearly every major specification category. The AMD Ryzen 5 8400F has 6 cores and 12 threads, while the AMD Ryzen AI Embedded P185 has 12 cores and 24 threads. Base clocks differ sharply: the 8400F runs at 4.20 GHz, while the P185 runs at 2.00 GHz. Boost clocks reverse the order, with the P185 at 5.10 GHz and the 8400F at 4.70 GHz.

TDP differs by more than double: 65 watts for the 8400F versus 28 watts for the P185. The socket changes from AMD Socket AM5 (8400F) to AMD Socket FP8 (P185). The architecture shifts from Zen 4 (Phoenix) to Zen 5 / Zen 5c (Gorgon Point). The L1 cache increases from 64 KB per core to 80 KB per core, while L2 and L3 remain the same at 1 MB per core and 16 MB respectively.

Memory support expands from DDR5-only to DDR5 and LPDDR5X. Memory bandwidth rises from 83.2 GB/s to 89.6 GB/s. ECC memory becomes available on the P185 but not on the 8400F. PCIe lanes drop from 20 to 16, both at Gen 4. Integrated graphics appear only on the P185 as Radeon 890M. The die size grows from 178 mm² to 233 mm². The multiplier changes from unlocked to locked. The market segment shifts from Desktop to Mobile. The 8400F has a launch MSRP of $170; the P185 has none recorded.

The Verdict

The benchmark data indicates the AMD Ryzen AI Embedded P185 is the stronger processor in every measured category. It wins 11 of 11 head-to-head tests, with margins ranging from 7.3% in single-thread to 37.2% in integer math. Its average benchmark score of 62839 places it in the 93rd percentile, while the 8400F averages 25005 in the 77th percentile.

The P185 achieves this dominance while running at a lower TDP of 28 watts versus 65 watts for the 8400F. This efficiency advantage comes alongside double the core and thread counts. The P185 also adds ECC memory support, a broader memory compatibility range, and integrated graphics, none of which the 8400F offers.

The 8400F retains advantages in base clock speed (4.20 GHz vs 2.00 GHz), higher PCIe lane count (20 vs 16), and an unlocked multiplier. It also has a recorded launch MSRP of $170. For users prioritizing those specific attributes, the 8400F has defined strengths. However, for raw performance across the board, the P185 is the clear winner in the recorded data.

Where Each One Wins

The AMD Ryzen AI Embedded P185 wins in every performance category where both were tested. Its largest margins appear in integer math (37.2% ahead), floating point math (34.5% ahead), and prime number finding (31% ahead). These results indicate strong capability for compute-heavy workloads such as scientific calculations, data processing, and financial modeling.

The P185 also leads in multithread performance by 23.3%, reflecting its 12-core, 24-thread configuration. Data compression and encryption tests show 23% and 15.1% advantages respectively, suggesting solid performance for file handling and security tasks. Physics simulation and extended instruction workloads also favor the P185 by 24.8% and 16.5%.

The AMD Ryzen 5 8400F wins in no head-to-head benchmark, but it does offer attributes that matter in specific contexts. Its higher base clock of 4.20 GHz provides a strong baseline for lightly threaded tasks, even though the P185 still wins the single-thread test by 7.3%. The 8400F has 20 PCIe Gen 4 lanes versus 16 on the P185, which could benefit systems with multiple expansion cards. Its unlocked multiplier allows manual overclocking, a feature absent from the locked P185.

For desktop builders with a launch MSRP of $170, the 8400F represents a defined entry point in the 8000 series. The P185, with no recorded MSRP, targets the mobile and embedded segment where its 28-watt TDP, ECC support, LPDDR5X compatibility, and integrated Radeon 890M graphics align with compact and reliability-sensitive designs. The data confirms the P185 as the performance leader, while the 8400F serves specific desktop use cases around pricing, PCIe expansion, and overclocking flexibility.