AMD EPYC 9124 vs AMD Ryzen AI Max PRO 390 Comparison

The AMD EPYC 9124 and AMD Ryzen AI Max PRO 390 represent two fundamentally different interpretations of AMD’s x86 architecture. The EPYC 9124 is a 16-core server processor built for sustained throughput, while the Ryzen AI Max PRO 390 is a 12-core mobile chip designed for high-frequency responsiveness. Benchmark results show a clear split: the EPYC 9124 wins 10 of 15 head-to-head comparisons, but the Ryzen AI Max PRO 390 dominates in specific single-threaded and specialized workloads. This analysis breaks down exactly where each processor excels, and which user should choose which.

Head-to-Head Benchmarks

The most dramatic divergence appears in Cinebench results, where the two processors trade blows based on thread count. In Cinebench R23 multi-core, the EPYC 9124 scores 37,269 against the Ryzen AI Max PRO 390’s 24,828, a decisive 50.1% advantage. That gap shrinks in Cinebench R15 multi-core, where the Ryzen AI Max PRO 390 actually wins 3,918 to 3,756, a 4.1% margin. This reversal suggests the Ryzen’s higher 5.00 GHz boost clock compensates for its fewer cores in shorter, less scalable workloads. However, the EPYC 9124’s dominance reasserts itself in single-core tests: it scores 5,261 in Cinebench R23 single-core versus 1,976 for the Ryzen, a staggering 166.2% lead. The EPYC also wins Cinebench R15 single-core by 74.9% (530 vs 303), indicating that the server chip’s Zen 4 architecture delivers vastly superior per-thread performance in this benchmark suite.

PassMark results paint a more nuanced picture. The EPYC 9124 wins heavily in data encryption (36,078 vs 26,027, a 38.6% lead) and random string sorting (74,177 vs 55,248, a 34.3% lead). It also takes physics (3,662 vs 2,773, up 32.1%) and data compression (599,417 vs 506,170, up 18.4%). The EPYC’s extended instructions score is 43,380 versus 40,888, a modest 6.1% gain. In integer math, the EPYC edges out a 148,785 to 148,508 victory, a razor-thin 0.2% margin. The multithread score also favors the EPYC, 43,846 to 42,912, a 2.2% difference.

The Ryzen AI Max PRO 390 strikes back in PassMark single-thread tests, scoring 3,967 versus 2,719 for the EPYC, a 31.5% advantage. It also wins floating-point math (94,666 vs 87,057, an 8% lead) and prime number finding (323 vs 256, a 20.7% lead). These wins highlight the Ryzen’s strength in latency-sensitive, low-thread-count tasks. Notably, the Ryzen’s 12 cores and 24 threads still manage to keep pace in some multi-threaded scenarios, though it ultimately loses the multithread benchmark by just 934 points.

Where Each One Wins

The EPYC 9124 is the clear choice for sustained, highly parallel workloads. Its 16 cores and 32 threads, combined with a 64 MB shared L3 cache, drive massive leads in Cinebench R23 multi-core (50.1% ahead) and data encryption (38.6% ahead). The data compression win (18.4%) and physics win (32.1%) further cement its position for server-side tasks like database processing, scientific simulation, and batch rendering. The EPYC’s 128 PCIe Gen 5 lanes and twelve-channel DDR5 memory bus with 460.8 GB/s bandwidth make it a natural fit for systems that move large amounts of data between CPU, GPU, and storage. Its 200 W TDP reflects a design optimized for continuous operation under full load.

The Ryzen AI Max PRO 390 wins where single-thread latency and specialized math matter most. Its 31.5% lead in PassMark single-thread and 166.2% lead in Cinebench R23 single-core (though the latter is an outlier) show it excels in everyday responsiveness, light coding, and office productivity. The floating-point math win (8%) and prime number finding win (20.7%) indicate strengths in financial modeling, physics calculations, and encryption key generation that don’t scale perfectly across many cores. The integrated Radeon 8050S graphics, 256.0 GB/s quad-channel LPDDR5X memory, and 55 W TDP make it ideal for a compact workstation or high-end laptop where space and power are constrained. Its 5.00 GHz boost clock is the highest among both processors, directly enabling its single-thread victories.

The Verdict

The data points to two distinct buyer profiles. Choose the AMD EPYC 9124 if your workloads are inherently parallel and demand maximum throughput over long durations. It wins 10 of 15 benchmarks, with its largest margins in multi-core rendering (50.1%), encryption (38.6%), and string sorting (34.3%). The 93rd percentile ranking versus all CPUs, alongside an average benchmark score of 65,104, places it in the top tier of processors. Its nearest rival, the AMD Ryzen 9 7950X3D, scores 65,914, just 1.2% higher, showing the EPYC is competitive even against desktop flagship parts. The EPYC’s 16-core count and server-grade features (128 PCIe lanes, twelve-channel memory) justify its placement in workstations and servers where every millisecond of parallel compute counts.

Choose the AMD Ryzen AI Max PRO 390 if you prioritize single-thread speed, power efficiency, and integrated graphics. It wins PassMark single-thread by 31.5% and Cinebench R15 multi-core by 4.1%, proving that 12 cores with a 5.00 GHz boost can outrun a 16-core part in certain scenarios. Its average benchmark score of 63,765 and 93rd percentile ranking are remarkably close to the EPYC’s, despite a 145 W lower TDP. The Ryzen’s nearest rival, the Intel Core i9-13900KS, scores 64,051, just 0.4% higher, indicating this mobile chip trades blows with desktop enthusiast processors. For a portable device that handles coding, media creation, and light AI tasks without a discrete GPU, the Ryzen AI Max PRO 390 is the data-backed pick.

FAQ

Q: Which processor has a higher single-thread score?

A: The AMD Ryzen AI Max PRO 390 scores 3,967 in PassMark single-thread versus 2,719 for the AMD EPYC 9124, a 31.5% advantage. The EPYC wins Cinebench R23 single-core, but that result is an anomaly compared to the broader single-thread data.

Q: How much faster is the EPYC 9124 in multi-core rendering?

A: In Cinebench R23 multi-core, the EPYC 9124 scores 37,269 versus 24,828 for the Ryzen AI Max PRO 390, a 50.1% lead. This is the largest multi-core gap in the head-to-head data.

Q: Does the Ryzen AI Max PRO 390 have integrated graphics?

A: Yes, it features a Radeon 8050S integrated GPU. The EPYC 9124 has no integrated graphics, requiring a separate GPU.

Q: What is the difference in memory bandwidth?

A: The EPYC 9124 supports twelve-channel DDR5 with 460.8 GB/s bandwidth. The Ryzen AI Max PRO 390 uses quad-channel LPDDR5X with 256.0 GB/s, roughly half the bandwidth.

Q: Which processor has more PCIe lanes?

A: The EPYC 9124 offers 128 PCIe Gen 5 lanes (CPU only). The Ryzen AI Max PRO 390 provides 16 PCIe Gen 4 lanes, a substantial difference for expandability.

Q: Are both processors equally ranked against all CPUs?

A: Yes, both sit in the 93rd percentile versus all CPUs. The EPYC 9124 has an average benchmark score of 65,104, while the Ryzen AI Max PRO 390 scores 63,765, a difference of 1,339 points.

Architecture Differences

The two processors come from different generations and design philosophies. The EPYC 9124 uses Zen 4 architecture on a 5 nm TSMC process, codenamed Genoa. It packs 26,280 million transistors across four 72 mm² dies, totaling a 288 mm² die area. The Ryzen AI Max PRO 390 uses newer Zen 5 architecture on a 4 nm TSMC process, codenamed Strix Halo, but its transistor count and die size are not listed. The EPYC’s L1 cache is 64 KB per core, while the Ryzen offers 80 KB per core; both have 1 MB L2 per core and 64 MB shared L3. The Ryzen’s larger L1 cache may contribute to its single-thread wins, while the EPYC’s higher core count drives multi-thread performance.

Memory architecture diverges sharply: the EPYC uses a twelve-channel DDR5 bus with 460.8 GB/s, while the Ryzen uses quad-channel LPDDR5X with 256.0 GB/s. Both support ECC memory, but the EPYC’s 128 PCIe Gen 5 lanes dwarf the Ryzen’s 16 PCIe Gen 4 lanes. The EPYC is built for AMD Socket SP5, targeting server/workstation platforms, while the Ryzen uses Socket FP11 for mobile. The EPYC has no integrated graphics; the Ryzen includes Radeon 8050S. Process node differences (5 nm vs 4 nm) reflect the Ryzen’s newer manufacturing, but the EPYC’s larger die area and transistor count indicate a more complex, multi-chiplet design.

Specification Differences

The specifications table shows clear differentiation in every major category. The EPYC 9124 has 16 cores and 32 threads, versus 12 cores and 24 threads for the Ryzen AI Max PRO 390. Base clocks are 3.00 GHz for the EPYC and 3.20 GHz for the Ryzen, but boost clocks tell a different story: 3.70 GHz for the EPYC versus 5.00 GHz for the Ryzen. TDP is a major divider — 200 W for the EPYC versus 55 W for the Ryzen. The EPYC launches at $1083 MSRP; the Ryzen has no listed launch MSRP. Sockets differ (SP5 vs FP11), as do market segments (Server/Workstation vs Mobile). Both are currently Active in production, and neither has an unlocked multiplier. Release dates are 2022-11-09 for the EPYC and 2025-01-05 for the Ryzen. The EPYC’s part number is 100-100000802; the Ryzen’s is 100-000001421.