AMD EPYC 9655 100-000000674 96-core 2.6 GHz server processor

96-core SP5 processor for dense servers

The AMD EPYC 9655 delivers 96 cores and 192 threads in a single Socket SP5 package. A base clock of 2.6 GHz and max turbo of 4.5 GHz feed heavily threaded workloads. The 384 MB L3 cache keeps large working sets close to the cores. Twelve DDR5-6400 channels and 128 PCIe 5.0 lanes provide the memory and I/O bandwidth that dense AI and cloud deployments demand.

Sustained 400 W thermal envelope

Rated at 400 W TDP, the chip is built to hold high frequencies across all 96 cores under continuous load rather than brief bursts. The large L3 cache reduces memory-controller pressure during long-running inference or analytics jobs. Twelve memory channels spread bandwidth evenly so no single channel becomes a bottleneck during extended throughput workloads. Cooling is not included; the platform must dissipate the full 400 W continuously.

Verify SP5 platform and DDR5-6400 support

Confirm the motherboard uses Socket SP5 and a qualified BIOS for the 9005 series. The processor requires twelve DDR5-6400 channels populated for rated bandwidth; fewer channels will reduce throughput. Ensure the chassis and power delivery can sustain 400 W per socket with adequate airflow. No cooler ships in the box, so a compatible SP5 heatsink or liquid cold plate must be sourced separately.