Intel Xeon 6787P 86c/172t 2.0GHz-3.2GHz 350W (PK8072006269800)

Intel Xeon 6787P — Ultra-Dense Granite Rapids CPU for Large-Scale Parallel Compute and Memory-Heavy Platforms

Intel Xeon 6787P sits at the very top end of the Intel Xeon 6 Granite Rapids lineup and is clearly positioned for environments where sheer core density, memory bandwidth, and sustained throughput outweigh concerns about single-thread peak clocks. With 86 cores and 172 threads, this processor is built for organizations designing large compute nodes that must process massive parallel workloads efficiently and predictably over long execution windows.

At the architectural level, the 6787P is based on Granite Rapids P-cores and manufactured using Intel 3 process technology. The base frequency of 2.0 GHz may look conservative at first glance, but it reflects the intended operating model: keeping a very high number of cores active simultaneously under continuous load. Turbo frequencies scale up to 3.2 GHz, which is sufficient for control threads, scheduling layers, and latency-sensitive components inside otherwise massively parallel jobs.

One of the defining strengths of the Xeon 6787P is memory scalability. The processor supports 8 DDR5 memory channels with official support for DDR5 and MRDIMM, allowing memory speeds up to 8000 MT/s depending on the DIMM type. Combined with support for up to 4 TB of memory, this enables configurations where memory capacity and bandwidth no longer constrain large simulations, in-memory databases, or analytics pipelines.

I/O capabilities are equally important in this class of processor. The 6787P provides PCIe 5.0 connectivity, enabling high-bandwidth attachment of NVMe storage, high-speed networking, and accelerator devices. With 88 PCIe lanes available in typical configurations, system designers can build balanced nodes that combine multiple NVMe drives, fast NICs, and specialized accelerators without oversubscribing the PCIe fabric.

From a power and thermal standpoint, the Xeon 6787P is a 350 W processor. This places it firmly in the category of CPUs that require deliberate platform engineering. Adequate cooling, airflow design, and power delivery are not optional if sustained performance is expected. In return, properly designed systems can maintain high all-core utilization for extended periods.

The processor also supports modern security and isolation features commonly expected in enterprise and cloud environments, including advanced memory encryption technologies and platform-level isolation mechanisms. For organizations running mixed-tenant workloads or handling sensitive data, these features influence both compliance and architectural decisions.

Typical use cases where Intel Xeon 6787P excels include high-performance computing clusters, in-memory analytics platforms, scientific research workloads with sustained parallel execution, virtualization environments prioritizing density, and data-intensive systems where compute must scale with I/O.

When evaluating the 6787P, it is important to think system-first rather than CPU-first. Platform validation, BIOS power policies, memory population strategy, and cooling design will ultimately determine whether the processor delivers its full potential. In the right environment, the Xeon 6787P functions less like a traditional server CPU and more like a compact, self-contained compute engine capable of replacing multiple lower-density nodes.