Cloudflare Gen 13 Server Architecture
Cloudflares Gen 13 platform replaces the prior generation with a single‑socket design built around a 192‑core AMD EPYC Turin processor, 768 GB of DDR5‑6400 memory, and a 24 TB NVMe storage array. The architecture adds dual 100 GbE network ports and hardware‑level PCIe encryption, delivering up to twice the throughput while keeping latency within service targets.
Processor Architecture
The heart of Gen 13 is the AMD EPYC Turin silicon featuring 192 cores and Zen 4 micro‑architecture. Each socket delivers a maximum thermal design power of 400 W, enabling high compute density in a 2U chassis. The chip includes a large shared L3 cache that reduces memory latency for intensive workloads.
Memory Configuration
Gen 13 equips DDR5‑6400 modules to reach a total of 768 GB across 12‑channel pathways. The configuration provides a peak memory bandwidth that exceeds previous generations by a wide margin. Integrated error‑correcting code safeguards data integrity under sustained load.
Storage Subsystem
The storage tier relies on NVMe devices connected via PCIe 5.0 lanes, delivering a cumulative capacity of 24 TB. The mix includes Samsung PM9D3a and Micron 7600 Pro models selected for low latency and high IOPS. This arrangement supports rapid content delivery and large‑scale caching.
Network Interface
Gen 13 provides a dual 100 GbE interface built to the OCP 3.0 standard, ensuring compatibility with modern data‑center fabrics. The network card integrates Mellanox ConnectX‑6 Dx ASICs alongside Intel Ethernet drivers for efficient packet processing. This combination yields high throughput while maintaining low CPU overhead.
Security and Encryption
Hardware‑level PCIe encryption works in tandem with memory encryption to protect data in transit and at rest. The server incorporates an ASPEED BMC that offers a hardware root of trust for secure boot processes. Integrated key management APIs simplify credential rotation for large deployments.
Power and Efficiency
The power supply is rated at 1300 W and uses titanium grade components to improve conversion efficiency. An energy‑proportional design aligns consumption with workload intensity, reducing idle draw. Advanced thermal management keeps the rack power budget stable even under peak demand.