Intel Xeon 6776P

Intel Xeon 6776P is a 64-core, 128-thread server processor built on the Granite Rapids architecture, targeting high-density compute environments where massive parallel throughput and memory bandwidth take priority over raw single-core speed. With a base clock of 2.30 GHz, a boost clock of 4.60 GHz, and a 350 W TDP, this chip sits firmly in the enterprise segment, and its benchmark percentile ranking of 50 among all CPUs indicates it is positioned exactly at the median of the tested database, neither a standout outlier nor a laggard, but a balanced workhorse for its intended socket.

Benchmark Performance

The Intel Xeon 6776P does not carry a single aggregated benchmark score in the data, but its 50th percentile placement across all CPUs provides a clear reference point. This percentile means that exactly half of all processors in the database perform better or worse in mixed workloads, which is a surprisingly modest standing for a 64-core part. The explanation lies in the nature of the benchmarks: many consumer and workstation chips with far fewer cores achieve higher average scores in lightly threaded tests, while the 6776P’s advantage emerges only when all 128 threads are saturated.

The 2.30 GHz base clock is low by modern standards, but the 4.60 GHz boost clock offers a 100% uplift under single-core or lightly loaded conditions. That boost ratio is substantial for a 350 W part, indicating that Intel’s frequency management can push a few cores aggressively while throttling the rest. In multi-threaded scenarios, the 336 MB of shared L3 cache and 2 MB L2 per core (totaling 128 MB across all cores) reduce memory latency penalties, which helps sustain throughput when all cores are active. However, without direct rival scores or delta percentages in the nearestRivals field, the data cannot confirm a specific margin over any competitor; the only quantitative anchor is the 50th percentile, which implies that in the aggregate benchmark suite, this chip is not a leader.

Benchmark results also reflect memory sensitivity: with eight-channel DDR5 support and a theoretical bandwidth of 409.6 GB/s, the 6776P is designed to feed its 64 cores. In memory-bound workloads, such as database transactions or large-scale data analytics, this bandwidth is the critical enabler, and the chip’s performance will scale closer to its core count than in latency-bound tasks. The absence of integrated graphics further confirms that every die area and power budget is dedicated to compute, making the 6776P a pure server part.

Platform and Compatibility

The Intel Xeon 6776P uses the Intel Socket 4710, a platform exclusive to the Xeon 6 (Granite Rapids-SP) generation. This socket is not cross-compatible with older Xeon Scalable platforms, so upgrading to this processor requires a new motherboard and potentially new memory, as it exclusively supports DDR5, no DDR4 fallback exists. The memory controller is eight-channel, meaning the platform needs at least eight DIMMs to reach full bandwidth; populating fewer channels will halve or quarter the 409.6 GB/s peak, which would bottleneck the 64 cores in memory-intensive work.

PCIe support is robust: Gen 5 with 88 lanes from the CPU alone, which is sufficient for multiple high-speed accelerators, NVMe storage arrays, or network interface cards. This lane count exceeds typical dual-socket configurations, but the 6776P is a single-socket part by design, so all 88 lanes are available to the system. The production status is Active, and the release date is 2025-05-21, placing it in the current generation with ongoing availability.

The architecture is Granite Rapids, fabricated on Intel’s 5 nm process, with a die size of 2x 598 mm², a dual-die design that explains the large L3 cache and high core count. The part number is SRWPD, and the multiplier is locked, so overclocking is not an option; server platforms rarely allow it, and the 350 W TDP leaves little thermal headroom for manual frequency increases. ECC memory is supported, which is mandatory for reliability in server environments, and the platform’s eight-channel design ensures that memory errors can be detected and corrected without system downtime.

How It Compares

The nearestRivals array in the data is empty, which means no direct competitor scores or delta percentages are available for this entry. Consequently, the comparison must rely solely on the 50th percentile ranking. That percentile places the 6776P in the middle of the entire CPU database, which includes consumer chips like mainstream desktop processors that dominate single-thread benchmarks due to higher clocks and lower core counts. Against a typical 16-core desktop part, the 6776P will lose in single-thread tests because its base clock is 2.30 GHz and the boost is shared across many cores, but in multi-thread workloads that use all 128 threads, the 64-core design will outperform by a wide margin, though the exact percentage cannot be stated without rival data.

In a server context, the 6776P competes with other Xeon 6 parts, but without specific names or deltas in the nearestRivals field, the analysis is limited to qualitative positioning. The 50th percentile suggests that in the aggregate benchmark suite, which likely weights a mix of single and multi-threaded tests, this chip is average. That is a meaningful conclusion: for workloads that are purely parallel, the 6776P is far above average, but for typical mixed-use benchmarks, its low per-core clock drags the overall score down. The lack of integrated graphics and the high TDP (350 W) further indicate that this is not a desktop substitute but a dedicated compute node.

FAQ

Q: What is the core and thread count of the Intel Xeon 6776P?

A: It has 64 cores and 128 threads, with a base clock of 2.30 GHz and a boost clock of 4.60 GHz.

Q: Does it support ECC memory?

A: Yes, ECC memory is supported, and the platform uses eight-channel DDR5 with a theoretical bandwidth of 409.6 GB/s.

Q: What socket does this processor use?

A: It uses Intel Socket 4710, which is exclusive to the Xeon 6 (Granite Rapids-SP) generation.

Q: How much L3 cache does it have?

A: The shared L3 cache is 336 MB, with 2 MB of L2 per core and 112 KB of L1 per core.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, and the processor is not designed for overclocking.

Q: What is the production status and release date?

A: The production status is Active, and the release date is 2025-05-21.

Power and Thermals

The 350 W TDP places the Intel Xeon 6776P in the highest power class for single-socket server processors, requiring a robust thermal solution. This TDP is the only power figure in the data, and it implies that the chip needs a high-end server heatsink or liquid cooling loop, air coolers designed for 200 W parts will not suffice. The 2x 598 mm² die size spreads heat over a large area, but the 350 W envelope still demands active cooling with a high static-pressure fan or a direct-to-chip liquid cold plate.

The boost clock of 4.60 GHz is only achievable when a few cores are active and thermal headroom exists; under all-core loads, the frequency will drop to sustain the 350 W power budget. The low 2.30 GHz base clock is a deliberate design choice to keep power in check during sustained multi-threaded operation. For server racks, this TDP class typically requires 1U or 2U chassis with high-flow fans, and the system’s power delivery must be rated for at least the peak current draw. The lack of integrated graphics means no extra thermal load from an iGPU, so all cooling resources go to the CPU cores.

Who Should Consider It

The Intel Xeon 6776P is for workloads that can use 128 threads simultaneously. Database servers, large-scale data analytics, scientific simulation, and virtualization hosts are prime candidates because these tasks scale with core count and benefit from the 409.6 GB/s memory bandwidth. The 50th percentile ranking indicates that for general-purpose computing, it is not a top performer, so it is not suited for single-threaded applications like legacy software or basic office tasks, those would be better served by a high-clock desktop chip.

For content creation, the 6776P is overkill for video editing or 3D rendering where single-thread performance matters; however, for CPU-based render farms that distribute frames across many threads, the 64 cores are ideal. The 88 PCIe Gen 5 lanes allow for multiple GPUs or high-speed storage controllers, making it a strong foundation for AI inference or training workloads that offload most compute to accelerators but need fast I/O. The 336 MB L3 cache is a massive advantage for workloads with large working sets, such as in-memory databases or real-time analytics, reducing the frequency of memory accesses.

Single-Thread vs Multi-Thread Behavior

The split between the 2.30 GHz base and 4.60 GHz boost clock reveals the design philosophy: this chip is built for parallel throughput, not latency-sensitive single-thread tasks. In single-threaded benchmarks, the 6776P will rank far below the 50th percentile because most desktop processors boost above 4.60 GHz and have fewer cores to manage, allowing higher sustained clocks. The 4.60 GHz boost is only a theoretical maximum for one or two cores; as more cores engage, the frequency must fall to stay within the 350 W TDP.

Conversely, in multi-threaded workloads that use all 128 threads, the 6776P’s 64 cores provide a massive parallel advantage. The 336 MB L3 cache and eight-channel DDR5 with 409.6 GB/s bandwidth ensure that the cores are not starved for data, which is the usual bottleneck for high-core-count parts. The 50th percentile aggregate score reflects this dual nature: the chip’s multi-thread performance pulls the average up, while its single-thread weakness drags it down, resulting in a median position. For real-world workloads, this means the 6776P excels in batch processing, server virtualization, and compute-heavy tasks where the operating system can schedule many threads concurrently, but it will feel sluggish in interactive applications that depend on a few fast cores.