AMD EPYC 7343 vs AMD Ryzen AI Max PRO 390 Comparison

The AMD EPYC 7343 and the AMD Ryzen AI Max PRO 390 are both high-percentile performers, sitting at the 93rd percentile against all CPUs. Their average benchmark scores are nearly identical, with the EPYC 7343 posting 64,202 and the Ryzen AI Max PRO 390 posting 63,765, a difference of only 0.7%. However, this statistical tie masks two fundamentally different designs. The EPYC 7343 is a 16-core, 32-thread Zen 3 server processor built for sustained throughput, while the Ryzen AI Max PRO 390 is a 12-core, 24-thread Zen 5 mobile processor with a much higher boost clock and integrated graphics. The head-to-head data shows the EPYC 7343 winning 10 of 15 benchmarks, but the Ryzen AI Max PRO 390 taking the lead in several key areas, particularly single-threaded PassMark tests and floating-point math.

Where Each One Wins

The EPYC 7343 is the clear winner in multi-threaded rendering workloads. In Cinebench R23 multi-core, it scores 37,097 against the Ryzen AI Max PRO 390’s 24,828, a massive 49.4% advantage. This is largely due to its larger core count (16 versus 12) and its 128 MB of shared L3 cache, which is double the Ryzen’s 64 MB. The EPYC 7343 also dominates in Cinebench R15 multi-core, though by a smaller margin: 3,739 versus 3,918 is actually a win for the Ryzen AI Max PRO 390, showing that the mobile chip can compete in older multi-threaded workloads. However, the EPYC 7343 more than compensates in other throughput-heavy tasks, winning data compression (589,770 versus 506,170, a 16.5% lead), data encryption (37,454 versus 26,027, a 43.9% lead), and prime number finding (382 versus 323, an 18.3% lead).

The Ryzen AI Max PRO 390 wins in areas that favor its higher boost clock of 5.00 GHz and newer Zen 5 architecture. Its most significant victory is in PassMark single-thread performance, where it scores 3,967 versus the EPYC 7343’s 2,740, a 30.9% advantage. This is a substantial lead that indicates better per-core efficiency for latency-sensitive tasks. The Ryzen AI Max PRO 390 also wins in floating-point math (94,666 versus 86,311, an 8.8% lead) and extended instructions (40,888 versus 35,626, a 12.9% lead). The Cinebench R15 single-core result is an anomaly: the EPYC 7343 scores 527 versus the Ryzen’s 303, a 73.9% lead for the server chip, which contradicts the newer chip’s other single-threaded wins. This suggests the R15 single-core test may favor the EPYC’s older architecture in a specific way, but the broader data shows the Ryzen AI Max PRO 390 is the stronger single-threaded performer.

The Verdict

For server and workstation workloads requiring maximum multi-threaded throughput, the EPYC 7343 is the clear choice. Its 49.4% lead in Cinebench R23 multi-core and 43.9% lead in data encryption show that it excels at sustained, heavily parallelized tasks. The EPYC 7343 also wins in integer math (156,033 versus 148,508, a 5.1% lead) and multi-threaded PassMark (43,644 versus 42,912, a 1.7% lead), making it the better option for compilation, rendering, and database workloads. Its eight-channel DDR4 memory support and 128 PCIe Gen 4 lanes provide a platform advantage for server deployments, though these features are not directly benchmarked here.

For mobile or compact systems where single-threaded responsiveness and power efficiency matter, the Ryzen AI Max PRO 390 is the superior choice. Its 30.9% lead in PassMark single-thread performance and 8.8% lead in floating-point math indicate that it handles interactive and calculation-heavy applications more smoothly. The Ryzen AI Max PRO 390 also has integrated Radeon 8050S graphics, eliminating the need for a discrete GPU in many scenarios, and its 55 W TDP is dramatically lower than the EPYC 7343’s 190 W, making it suitable for laptops and small form factors. The data shows that the Ryzen AI Max PRO 390 wins in Cinebench R15 multi-core (3,918 versus 3,739), which is notable given its lower core count, suggesting that Zen 5’s efficiency gains can overcome the core deficit in some workloads.

Head-to-Head Benchmarks

The most decisive benchmark is Cinebench R23 multi-core, where the EPYC 7343 scores 37,097 versus the Ryzen AI Max PRO 390’s 24,828. This 49.4% margin is the largest in any multi-threaded test and reflects the EPYC’s superiority in long-running rendering tasks. The EPYC 7343 also shows a 165% lead in Cinebench R23 single-core (5,237 versus 1,976), which is the largest delta across all tests, though this result is unusual given the Ryzen’s other single-threaded wins. In Cinebench R15 multi-core, the Ryzen AI Max PRO 390 actually wins with 3,918 versus 3,739, a 4.6% advantage, showing that older test versions may not scale with the EPYC’s core count as effectively.

In PassMark tests, the EPYC 7343 wins 6 of 9 benchmarks. Data compression shows a 16.5% lead (589,770 versus 506,170), data encryption shows a 43.9% lead (37,454 versus 26,027), and physics shows a 72.2% lead (4,774 versus 2,773). The EPYC 7343 also wins random string sorting by 22.3% (67,576 versus 55,248) and prime number finding by 18.3% (382 versus 323). Integer math is closer, with the EPYC 7343 leading 156,033 versus 148,508, a 5.1% margin. The Ryzen AI Max PRO 390 counters with wins in extended instructions (40,888 versus 35,626, a 12.9% lead) and floating-point math (94,666 versus 86,311, an 8.8% lead). The single-thread PassMark result is the Ryzen’s biggest win: 3,967 versus 2,740, a 30.9% margin. Overall, the EPYC 7343 wins 10 of 15 head-to-head benchmarks, but the Ryzen AI Max PRO 390’s wins are concentrated in areas that matter for client-side performance.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD EPYC 7343 has an average benchmark score of 64,202, which is 0.7% higher than the AMD Ryzen AI Max PRO 390’s 63,765. Both are at the 93rd percentile against all CPUs.

Q: How big is the multi-core rendering gap?

A: In Cinebench R23 multi-core, the EPYC 7343 scores 37,097, which is 49.4% higher than the Ryzen AI Max PRO 390’s 24,828. This is the largest multi-threaded difference in the head-to-head results.

Q: Why does the Ryzen AI Max PRO 390 win PassMark single-thread?

A: The Ryzen AI Max PRO 390 scores 3,967 in PassMark single-thread, a 30.9% lead over the EPYC 7343’s 2,740. This is likely due to its 5.00 GHz boost clock and Zen 5 architecture, which provide higher per-core performance.

Q: Does the EPYC 7343 win all memory-related tests?

A: The EPYC 7343 wins data compression (589,770 versus 506,170) and data encryption (37,454 versus 26,027), but the Ryzen AI Max PRO 390 has higher memory bandwidth at 256.0 GB/s versus 204.8 GB/s, and wins floating-point math and extended instructions.

Q: What is the core and thread difference?

A: The EPYC 7343 has 16 cores and 32 threads, while the Ryzen AI Max PRO 390 has 12 cores and 24 threads. The EPYC also has 128 MB of shared L3 cache versus 64 MB on the Ryzen.

Q: Which processor has integrated graphics?

A: The AMD Ryzen AI Max PRO 390 includes integrated Radeon 8050S graphics. The EPYC 7343 does not have integrated graphics, as indicated by the null field in its specifications.

Architecture Differences

The EPYC 7343 is built on Zen 3 architecture using a 7 nm process from TSMC, with a codename of Milan. It has 16 cores and 32 threads, with a base clock of 3.20 GHz and a boost clock of 3.90 GHz. Its cache hierarchy includes 64 KB of L1 per core, 512 KB of L2 per core, and a 128 MB shared L3 cache. The EPYC 7343 supports DDR4 memory with an eight-channel bus, providing 204.8 GB/s of memory bandwidth. It uses the AMD Socket SP3 and has 128 PCIe Gen 4 lanes. The processor has a TDP of 190 W and was released on 2021-03-14, with a launch MSRP of $1565. It features 16,600 million transistors across a die size of 4x 81 mm².

The Ryzen AI Max PRO 390 is built on Zen 5 architecture using a 4 nm process from TSMC, with a codename of Strix Halo. It has 12 cores and 24 threads, with a base clock of 3.20 GHz and a boost clock of 5.00 GHz. Its cache hierarchy includes 80 KB of L1 per core, 1 MB of L2 per core, and a 64 MB shared L3 cache. The Ryzen AI Max PRO 390 supports LPDDR5X memory with a quad-channel bus, providing 256.0 GB/s of memory bandwidth. It uses the AMD Socket FP11 and has 16 PCIe Gen 4 lanes. The processor has a TDP of 55 W and was released on 2025-01-05. It includes integrated Radeon 8050S graphics and supports ECC memory. The EPYC 7343 also supports ECC memory, but the Ryzen’s higher memory bandwidth and newer process node are its key architectural advantages.