Intel Xeon 6787P VS Intel Xeon 6788P

In terms of general specifications, the Intel Xeon 6787P and Intel Xeon 6788P are virtually identical across every measured dimension in this group. Both processors share a 350W TDP, are built on a 3 nm process node, support PCIe 5.0, operate up to 97 °C, support 64-bit computing, and neither includes integrated graphics.

The shared 3 nm fabrication process is significant — it places both chips among the most advanced server-class silicon available, delivering strong performance-per-watt efficiency relative to older nodes. The PCIe 5.0 interface ensures compatibility with the latest high-bandwidth peripherals such as NVMe SSDs and accelerators, future-proofing both platforms. The absence of integrated graphics on both is expected for server-focused workloads, where discrete solutions or headless operation are the norm.

Based strictly on the general info specs provided, these two processors are completely tied — there is no differentiating factor in this group. Users choosing between them will need to look beyond general specifications, to areas such as core counts, cache, or clock speeds, to identify any meaningful distinction.

Both the Xeon 6787P and Xeon 6788P deliver identical performance credentials across every measured metric in this group. Each processor runs at a base clock of 2 GHz across 86 cores, boosts to 3.8 GHz via Turbo Boost 2.0, and exposes 172 threads — confirming a 2-threads-per-core configuration typical of Intel's Hyper-Threading architecture. For heavily parallelized server workloads such as virtualization, in-memory databases, or HPC tasks, this thread count represents serious throughput capacity.

Cache hierarchy is equally matched: a massive 336 MB L3 cache — working out to roughly 3.91 MB per core — significantly reduces memory latency for data-intensive workloads by keeping large working sets close to the execution units. The 172 MB L2 cache at 2 MB per core adds another substantial buffer layer. Together, these cache depths are well-suited for workloads that suffer from frequent cache misses on lesser platforms. Neither chip offers an unlocked multiplier, which is expected in the enterprise segment where stability and consistency take precedence over overclocking headroom.

Across every performance dimension provided, these two processors are in a complete tie. There is no metric in this group — core count, clocks, turbo behavior, or cache at any level — that distinguishes one from the other. The decision between the 6787P and 6788P will hinge entirely on specifications outside this group.

Memory configuration is largely shared between these two processors, but one meaningful difference emerges: the Xeon 6787P supports a maximum RAM speed of 8000 MHz, while the Xeon 6788P tops out at 6400 MHz. Both run DDR5 across 8 memory channels, support up to 4000 GB of total RAM, and share an identical 24 GT/s bus transfer rate — so the gap is specifically in the peak memory frequency the controller can sustain.

In practice, that 1600 MHz headroom on the 6787P translates to higher peak memory bandwidth, which matters most in workloads that are memory-throughput-bound — think large in-memory analytics, machine learning inference, or high-frequency financial modeling. For workloads that are compute-bound or where latency rather than raw bandwidth is the bottleneck, the real-world gap may be less pronounced. Both chips support ECC memory, which is essential in enterprise environments where data integrity under continuous operation is non-negotiable.

The Xeon 6787P holds a clear edge in this group solely due to its higher supported memory frequency. All other memory specifications — capacity ceiling, channel count, DDR generation, and bus rate — are identical. For deployments where maximum memory bandwidth is a priority, the 6787P is the stronger platform; for workloads indifferent to that ceiling, both processors are effectively equivalent here.

Feature parity is total in this group. Both the Xeon 6787P and Xeon 6788P support multithreading, carry the NX bit for hardware-enforced memory protection, and implement an identical instruction set suite: AVX, AVX2, FMA3, AES, F16C, MMX, SSE 4.1, and SSE 4.2.

The instruction set lineup carries real weight for server workloads. AVX2 enables 256-bit integer and floating-point vector operations, accelerating tasks like video transcoding, scientific simulations, and data compression. FMA3 fused multiply-add support is particularly valuable for machine learning and signal processing pipelines. Hardware AES acceleration offloads encryption and decryption at the silicon level, reducing the CPU overhead of TLS, storage encryption, and secure communications — critical in any security-conscious enterprise environment. F16C adds half-precision floating-point conversion, a useful capability for AI inference workloads that operate in FP16 space.

With no divergence across any feature in this group, the two processors are completely tied. Software compiled to exploit any of these instruction sets will behave identically on either chip, and neither platform offers a feature-level advantage over the other here.