AMD EPYC 9686F Zen 6 benchmarks: 96 cores at 5.3GHz boost on Linux 7.3

Phoronix published launch-day benchmarks for the AMD EPYC 9686F, a high-frequency Zen 6 server processor featuring 96 cores and 192 threads with a 5.3GHz boost clock—up from the originally disclosed 5.0GHz. The chip carries 384MB of L3 cache, supports 96 lanes of PCIe 6.0, and DDR5 RDIMM 8000 MT/s or MRDIMM 12800 MT/s memory, with a default 500W TDP configurable up to 600W.

Testing was conducted on Ubuntu 26.10 with the Linux 7.3 kernel across AI, HPC, rendering, compilation, and general CPU workloads. The EPYC 9686F was compared against the prior-generation EPYC 9575F (64 cores, 5.0GHz), the 128-core EPYC 9755, and Intel's Xeon 6980P flagship. AMD's Nigeria 2U reference server air-cools the SP7 platform, a shift from the liquid-cooled Volcano design used for EPYC 9005.

Zen 6 Venice silicon and platform specifics

• Clock speeds and power: The EPYC 9686F runs at a 3.4GHz base clock with 5.3GHz boost, drawing 500W default TDP with a configurable range of 400W to 600W—100W higher than the prior EPYC 9575F's 400W ceiling.
• Cache and memory: The processor includes 384MB of L3 cache, a 50% increase over the 256MB in the EPYC 9575F, paired with support for MRDIMM 12800 MT/s memory for increased bandwidth.
• I/O capabilities: The chip provides 96 lanes of PCIe 6.0, matching other EPYC 9006 Venice processors in the SP7 platform.
• Software stack: All benchmarks ran on Ubuntu 26.10 with Linux kernel 7.3, providing a current open-source software baseline for comparison.

Why it matters

The EPYC 9686F's combination of high core count and exceptional single-threaded frequency on a standard Linux kernel reinforces AMD's position in data center and HPC environments where open-source software stacks dominate. For Linux distribution maintainers and system administrators, the out-of-box compatibility with Ubuntu 26.10 and Linux 7.3 signals mature upstream support for Zen 6 silicon, while the air-cooled SP7 platform may simplify deployment logistics compared to liquid-cooled alternatives.