AMD EPYC 7343 vs AMD Ryzen AI Embedded P185 Comparison

The AMD EPYC 7343 and the AMD Ryzen AI Embedded P185 occupy opposite ends of the computing spectrum, yet both achieve the 93rd percentile in the benchmark database. The EPYC 7343 is a 16-core server processor built on the Zen 3 architecture, while the P185 is a 12-core mobile-focused chip using a hybrid Zen 5 / Zen 5c design. The data shows a clear split: the EPYC 7343 dominates in every multi-threaded and throughput-oriented test, while the P185 delivers a substantial lead in single-thread performance. This makes the choice between them a matter of workload priority rather than overall capability.

Where Each One Wins

The AMD EPYC 7343 wins 9 of the 11 shared benchmark comparisons, establishing itself as the clear choice for heavily parallel workloads. Its most decisive victories come in prime number finding, physics calculations, and data compression, where the extra cores and massive L3 cache provide a commanding advantage. The P185, by contrast, wins only the two single-thread tests, but it does so by a meaningful margin that signals a different design philosophy.

For server and workstation tasks that scale with thread count, the EPYC 7343 is the obvious winner. The data shows it leading by 37.2% in the PassMark multithread score, and the margins expand further in specialized tests like physics (169.4% ahead) and prime number calculation (196.1% ahead). These are workloads that can utilize all 32 threads and the 128 MB of shared L3 cache.

The P185’s strength lies in single-thread responsiveness. Its PassMark single-thread score of 3977 beats the EPYC 7343’s 2740 by 31.1%. This advantage comes from its higher boost clock of 5.10 GHz compared to 3.90 GHz, and the newer Zen 5 architecture. For applications that are latency-sensitive or poorly parallelized, the P185 will feel noticeably snappier.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD EPYC 7343 has an average benchmark score of 64202, while the AMD Ryzen AI Embedded P185 scores 62839. The difference is approximately 1,363 points, or roughly 2.2% in favor of the EPYC 7343.

Q: How large is the single-thread performance gap?

A: The P185 leads in PassMark single-thread tests with a score of 3977 versus 2740 for the EPYC 7343. This represents a 31.1% advantage for the P185, making it the better choice for single-core-bound tasks.

Q: What is the most lopsided benchmark result between the two?

A: The PassMark find_prime_numbers test shows the largest disparity. The EPYC 7343 scores 382, which is 196.1% higher than the P185’s 129. This reflects the EPYC’s superior multi-threaded throughput in this specific workload.

Q: Do both processors support ECC memory?

A: Yes, both the AMD EPYC 7343 and the AMD Ryzen AI Embedded P185 support ECC memory. However, they use different memory types: the EPYC 7343 supports DDR4 with an eight-channel bus, while the P185 supports DDR5 and LPDDR5X on a dual-channel bus.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen AI Embedded P185 has a boost clock of 5.10 GHz, which is significantly higher than the EPYC 7343’s 3.90 GHz. This explains the P185’s single-thread performance advantage.

Q: How do the two compare in data encryption workloads?

A: The EPYC 7343 is far ahead in PassMark data encryption, scoring 37454 compared to the P185’s 19612. This is a 91% difference in favor of the EPYC 7343, indicating a strong advantage for server-side security processing.

Head-to-Head Benchmarks

The head-to-head data reveals a consistent pattern of EPYC 7343 dominance in multi-core tests, with the P185 taking a narrow but clear win in single-thread performance. The most striking result is in PassMark find_prime_numbers, where the EPYC 7343 scores 382 against the P185’s 129, a delta of 196.1%. This test is highly parallelizable, and the EPYC’s 16 cores and 32 threads clearly shine here.

Physics calculations show a similar story, with the EPYC 7343 scoring 4774 versus 1772 for the P185, a 169.4% advantage. This is another multi-threaded workload where core count and cache size matter greatly. The EPYC 7343’s 128 MB L3 cache provides a significant advantage over the P185’s 16 MB L3.

In data compression, the EPYC 7343 scores 589770 against 374429, a 57.5% lead. Data encryption shows a 91% gap, with the EPYC 7343 at 37454 and the P185 at 19612. Both of these tests benefit from the EPYC’s higher memory bandwidth of 204.8 GB/s versus 89.6 GB/s for the P185.

The EPYC 7343 also wins in extended instructions (35626 vs 26544, a 34.2% lead), floating point math (86311 vs 70587, a 22.3% lead), and integer math (156033 vs 117832, a 32.4% lead). The multithread score shows a 37.2% advantage, at 43644 versus 31817. Random string sorting shows a 66.6% lead, with 67576 versus 40557.

The only tests the P185 wins are the two single-thread benchmarks, both showing 3977 versus 2740, a 31.1% lead for the P185. This is a substantial margin, indicating that the Zen 5 architecture provides a significant per-core efficiency improvement over Zen 3.

Specification Differences

The two processors differ significantly across nearly every specification category. The EPYC 7343 has 16 cores and 32 threads, while the P185 has 12 cores and 24 threads. This core count difference directly explains the EPYC’s multi-threaded dominance.

Clock speeds also diverge sharply. The EPYC 7343 has a base clock of 3.20 GHz and a boost clock of 3.90 GHz. The P185 has a much lower base clock of 2.00 GHz but a much higher boost clock of 5.10 GHz. This low base, high boost design is typical for mobile processors that need to conserve power under load.

Power consumption is a major differentiator. The EPYC 7343 has a TDP of 190 watts, while the P185 has a TDP of just 28 watts. This makes the P185 suitable for embedded and mobile applications where thermal and power constraints are critical.

Memory support differs completely. The EPYC 7343 uses DDR4 with an eight-channel memory bus, providing 204.8 GB/s of bandwidth. The P185 uses DDR5 and LPDDR5X with a dual-channel bus, offering 89.6 GB/s. The EPYC’s memory bandwidth is more than double that of the P185.

The socket types are incompatible: the EPYC 7343 uses AMD Socket SP3, while the P185 uses AMD Socket FP8. The EPYC 7343 also offers 128 PCIe Gen 4 lanes, compared to 16 lanes for the P185. The P185 includes integrated Radeon 890M graphics, while the EPYC 7343 has no integrated graphics.

Architecture Differences

The architectural divide between these two processors is generational. The EPYC 7343 is built on AMD’s Zen 3 architecture, codenamed Milan, using a 7 nm process from TSMC. The P185 uses a Zen 5 / Zen 5c hybrid design, codenamed Gorgon Point, on a 4 nm process, also from TSMC.

The process node difference is significant: 7 nm versus 4 nm. This allows the P185 to achieve much higher clock speeds while maintaining a dramatically lower TDP. The P185’s die size is 233 mm², while the EPYC 7343 uses a multi-chip design with four dies, each measuring 81 mm².

Cache configurations are also very different. The EPYC 7343 has 64 KB of L1 cache per core, 512 KB of L2 per core, and a massive 128 MB of shared L3 cache. The P185 has 80 KB of L1 per core, 1 MB of L2 per core, and just 16 MB of L3 cache. The EPYC’s L3 cache is eight times larger, which is a major factor in its multi-threaded performance.

The transistor count for the EPYC 7343 is listed at 16,600 million, while the P185’s transistor count is not provided. The P185’s hybrid architecture combines Zen 5 and Zen 5c cores, which likely contributes to its efficiency, though the exact core allocation is not specified in the data.

The EPYC 7343 is part of the EPYC 7003 series, while the P185 belongs to the Ryzen AI Embedded line. The EPYC is a server/workstation part, while the P185 is a mobile processor. This fundamental positioning explains most of the architectural choices made in each design.

The Verdict

The benchmark data supports a clear division of use cases. The AMD EPYC 7343 is the superior choice for any workload that can leverage multiple cores and threads. Its wins in 9 of 11 benchmarks, including dominant margins in physics (169.4%), prime numbers (196.1%), and encryption (91%), make it the obvious pick for server virtualization, database processing, scientific computing, and content rendering.

The AMD Ryzen AI Embedded P185 is the better option for single-threaded performance and power-constrained environments. Its 31.1% lead in single-thread tests, combined with a TDP of 28 watts versus 190 watts, makes it suitable for embedded systems, thin clients, or mobile workstations where efficiency and responsiveness are more important than raw multi-core throughput.

The EPYC 7343’s 128 MB L3 cache and 204.8 GB/s memory bandwidth provide it with a substantial advantage in data-heavy workloads. Its 128 PCIe Gen 4 lanes also make it more suitable for systems with many expansion cards or high-speed storage arrays. The P185’s 16 PCIe lanes and integrated Radeon 890M graphics make it a more self-contained solution.

For users who need maximum multi-threaded performance in a server or workstation, the EPYC 7343 is the data-backed choice. Its average benchmark score of 64202 is higher, and it outperforms the P185 in nearly every throughput test. For users who prioritize single-core speed and low power draw, the P185 offers a compelling alternative, despite its lower average score of 62839. The decision ultimately rests on whether the workload is bound by core count or clock speed.