The 671816-B21 is an HP‑branded AMD Opteron 6204 quad‑core processor designed for servers that utilize the Socket G34 platform. It operates at a base frequency of 3.3 GHz and includes a 16 MB shared L3 cache to support demanding multi‑threaded workloads. The processor’s memory interface runs at 6.4 GT/s with support for DDR4‑3200 MHz modules, providing high bandwidth for data‑intensive applications. Featuring HTL technology, the unit delivers efficient parallel processing while maintaining compatibility with standard G34‑based motherboard configurations, making it suitable for enterprise‑level compute environments.