AMD EPYC 9175F vs AMD Ryzen AI Max+ 392 Comparison

The AMD EPYC 9175F and AMD Ryzen AI Max+ 392 are both Zen 5 designs built on TSMC's 4 nm process, but they target opposite ends of the computing spectrum. The EPYC 9175F is a 16-core, 32-thread server processor with a 320 W TDP, while the Ryzen AI Max+ 392 is a 12-core, 24-thread mobile part with a 55 W TDP. Benchmark data shows a decisive performance hierarchy, with the EPYC winning all 11 head-to-head comparisons. The following analysis breaks down those results, examines architectural differences, and answers key questions about these two AMD processors.

Head-to-Head Benchmarks

The EPYC 9175F dominates the head-to-head benchmark suite, winning every single test. The most lopsided victory comes in PassMark physics, where the EPYC scores 9984 against the Ryzen AI Max+ 392's 2887 — a 245.8% advantage. This is a massive gap that reflects the EPYC's server-class design and higher power envelope. Prime number finding also shows a huge divide, with the EPYC's 741 score beating the Ryzen's 320 by 131.6%, indicating superior raw integer throughput in single-threaded workloads.

In multi-threaded tasks, the EPYC's 16 cores versus the Ryzen's 12 cores translate into substantial wins. The PassMark multithread score of 67634 for the EPYC is 49.5% higher than the Ryzen's 45231. Similarly, integer math shows a 44.2% lead (219800 vs 152414), and floating-point math is 46.6% ahead (145939 vs 99548). Data compression is a 56.3% win for the EPYC (867186 vs 554760), while random string sorting goes to the EPYC by 61% (95783 vs 59487). Data encryption also favors the EPYC by 52.2% (42297 vs 27784), and extended instructions see a 54.4% advantage (70529 vs 45666).

Even in single-threaded tests, where the Ryzen's higher boost clock might be expected to help, the EPYC comes out ahead. The PassMark single-thread score for the EPYC is 4256, an 8.4% lead over the Ryzen's 3927. This is notable because both processors share a 5.00 GHz boost clock, but the EPYC's higher 4.20 GHz base clock and larger cache likely contribute to its edge. The data shows a clean sweep: 11 wins for the EPYC, 0 for the Ryzen. The EPYC's average benchmark score of 95615 also sits well above the Ryzen's 90541, a difference of roughly 5.6%.

Where Each One Wins

The EPYC 9175F wins in every measured category, but the degree of its advantage varies by workload type. Its biggest wins are in physics simulation (245.8% ahead) and prime number finding (131.6% ahead), tasks that rely heavily on high-core-count throughput and cache bandwidth. These results indicate the EPYC is the clear choice for server-side compute, scientific workloads, and any application that can leverage 32 threads. The CPU's 512 MB of shared L3 cache is a likely factor in these substantial margins, as it reduces memory latency for large working sets.

The Ryzen AI Max+ 392, despite losing all head-to-head tests, still has a role. Its scores are not weak in absolute terms — it holds a 96th percentile ranking among all CPUs, identical to the EPYC. The Ryzen's 45231 multithread score and 3927 single-thread score are strong for a mobile processor, and its integrated Radeon 8060S graphics provide functionality the EPYC lacks entirely. The data suggests the Ryzen is designed for mobile workstations where power efficiency and integrated graphics matter more than raw CPU throughput. Its 55 W TDP is less than one-fifth of the EPYC's 320 W, making it suitable for laptops and compact systems.

For single-threaded responsiveness, the Ryzen is nearly competitive, trailing by only 8.4%. This means day-to-day desktop tasks like web browsing or office applications would feel similar on both, but the EPYC's cache and core count give it a decisive edge in sustained multi-threaded work. The Ryzen's win condition is not in the CPU benchmarks — it is in the system-level advantages of lower power draw and integrated graphics, which the FACT PACK data supports qualitatively.

Architecture Differences

Both CPUs are built on Zen 5 architecture, but they come from different families. The EPYC 9175F is part of the EPYC 9005 series, codenamed Turin, while the Ryzen AI Max+ 392 uses the Strix Halo codename. Both are manufactured by TSMC on a 4 nm process, and both use 70.6 mm² dies — the EPYC with 16 dies and the Ryzen with 2 dies. This die configuration is a major architectural split: the EPYC's 16-die design enables its massive 512 MB shared L3 cache, while the Ryzen's 2-die layout is limited to 64 MB of shared L3.

The EPYC is a server/workstation part with a 128-lane PCIe Gen 5 interface, while the Ryzen is a mobile part with a 16-lane PCIe Gen 4 interface. Memory support also diverges sharply: the EPYC uses DDR5 with a twelve-channel memory bus and 576.0 GB/s bandwidth, while the Ryzen uses LPDDR5X with a quad-channel bus and 256.0 GB/s bandwidth. Both support ECC memory, but the bandwidth and channel count are critical differences for memory-intensive server workloads.

The Ryzen integrates Radeon 8060S graphics, while the EPYC has no integrated graphics. This is a fundamental architectural distinction — the Ryzen is an APU-class design, combining CPU and GPU on a single package for mobile systems. The EPYC, by contrast, is a pure CPU that relies on discrete graphics or no graphics at all in headless server configurations. Both have unlocked multipliers disabled, meaning no overclocking support. The transistor counts are not available for the Ryzen, but the EPYC lists 133,040 million transistors across its 16 dies.

Specification Differences

The most visible specification gap is core count: the EPYC has 16 cores and 32 threads, while the Ryzen has 12 cores and 24 threads. Base clocks differ significantly, with the EPYC at 4.20 GHz versus the Ryzen's 3.20 GHz, though both boost to 5.00 GHz. The TDP is a stark contrast — 320 W for the EPYC versus 55 W for the Ryzen. This power difference explains much of the performance gap, as the EPYC has far more thermal headroom to sustain high clocks across all cores.

Cache hierarchies show the EPYC's server pedigree: it offers 80 KB of L1 and 1 MB of L2 per core, identical to the Ryzen, but the L3 cache is 512 MB shared versus 64 MB shared — an 8x difference. Memory bandwidth follows a similar pattern, with the EPYC's 576.0 GB/s dwarfing the Ryzen's 256.0 GB/s. The memory bus is twelve-channel for the EPYC and quad-channel for the Ryzen. PCIe lanes are also vastly different: 128 Gen 5 lanes for the EPYC versus 16 Gen 4 lanes for the Ryzen.

Socket and form factor are another major split. The EPYC uses AMD Socket SP5, while the Ryzen uses AMD Socket FP11. The EPYC targets server/workstation platforms, while the Ryzen is a mobile processor. Release dates differ, with the EPYC launching on 2024-10-09 and the Ryzen on 2026-01-05. The EPYC has a launch MSRP of $4256, while the Ryzen's launch MSRP is not provided. The EPYC's part number is 100-000001145, and the Ryzen's is 100-000001979. Both are actively in production.

FAQ

Q: Which CPU has more cores and threads?

A: The AMD EPYC 9175F has 16 cores and 32 threads, while the AMD Ryzen AI Max+ 392 has 12 cores and 24 threads.

Q: What is the biggest performance gap between the two?

A: In PassMark physics, the EPYC 9175F scores 9984 versus the Ryzen's 2887, a 245.8% lead. This is the largest delta among all head-to-head benchmarks.

Q: Do both processors share the same boost clock?

A: Yes, both have a boost clock of 5.00 GHz. However, the EPYC's base clock is 4.20 GHz, while the Ryzen's is 3.20 GHz.

Q: How does memory bandwidth compare?

A: The EPYC 9175F offers 576.0 GB/s over a twelve-channel DDR5 bus, while the Ryzen AI Max+ 392 provides 256.0 GB/s over a quad-channel LPDDR5X bus.

Q: Does the Ryzen AI Max+ 392 have integrated graphics?

A: Yes, it includes Radeon 8060S graphics. The EPYC 9175F has no integrated graphics.

Q: Which CPU has a higher average benchmark score?

A: The EPYC 9175F has an average benchmark score of 95615, compared to the Ryzen's 90541. Both rank in the 96th percentile of all CPUs.