Intel Xeon Phi 7250F

The Intel Xeon Phi 7250F is a 68-core, 272-thread server processor built on the Knights Landing architecture, manufactured on Intel’s 14 nm process with 8,000 million transistors. It targets high-throughput parallel workloads, with a base clock of 1400.00 MHz and a boost clock of 1600.00 MHz. Its benchmark percentile places it at the 50th percentile among all CPUs, indicating a mid-pack standing in aggregate performance, though its core count and thread count suggest a design optimized for specific, highly parallel tasks rather than general-purpose responsiveness.

Single-Thread vs Multi-Thread Behavior

The data shows a stark contrast between the Xeon Phi 7250F’s single-thread and multi-thread capabilities. With a base clock of 1400.00 MHz and a boost clock of 1600.00 MHz, the processor’s per-core frequency is modest compared to mainstream server chips. This directly limits single-thread performance, which relies heavily on clock speed and per-core efficiency. Benchmark results indicate that workloads depending on a single thread—such as legacy database queries, certain scripting workloads, or lightly threaded applications—will see only moderate throughput. The 50th percentile standing across all CPUs reflects this limitation: the Xeon Phi 7250F is not designed to win latency-sensitive or branchy single-threaded tasks.

Conversely, multi-thread behavior is where this processor’s design becomes evident. The 68 cores and 272 threads provide a massive parallel execution capacity, allowing the chip to excel when a workload can be decomposed into many independent threads. The gap between single-thread and multi-thread performance is not just about core count—it is about the architecture’s ability to feed all those cores. Knights Landing includes a high-bandwidth memory system (though specific bandwidth figures are not in the data), which helps sustain parallel throughput. In practice, this means the Xeon Phi 7250F behaves like a specialized accelerator: weak at serial portions of code, but formidable when a task scales to hundreds of threads. For real workloads, this split implies that users must carefully parallelize their code to extract value; otherwise, the chip underperforms even mid-range desktop processors in single-thread metrics.

Power and Thermals

The Intel Xeon Phi 7250F carries a TDP of 230 watts, classifying it as a high-power server part. This TDP figure implies that cooling solutions must be robust—typically a high-end server air cooler or a liquid cooling loop designed for dense compute nodes. The 14 nm process node and 8,000 million transistors contribute to this power draw, as the chip houses a large number of active cores. The data does not provide specific thermal output or cooling requirements, but the 230-watt TDP places it in the same class as other heavily threaded workstation processors. For system integrators, this means the chassis must support substantial airflow, and power delivery must be rated for sustained high loads. The boost clock of 1600.00 MHz, while modest, can be maintained across all cores under heavy load—but only if the thermal solution can dissipate the heat generated by 68 active cores. Benchmark results indicate that power efficiency is not a strong suit; instead, the processor prioritizes raw parallel compute density over energy frugality. Users migrating from lower-TDP parts should expect higher electricity consumption and greater cooling infrastructure demands.

Who Should Consider It

The workload-based recommendations stem directly from the performance split. For gaming, the Xeon Phi 7250F is a poor choice. Games typically rely on a few threads with high clock speeds, and this processor’s 1400.00 MHz base clock would bottleneck even modern titles that use multiple cores. The 272 threads cannot compensate for the lack of per-core speed in gaming scenarios, and the 50th percentile ranking reinforces that this is not a consumer-oriented part.

For creation workloads, the answer depends on the software’s threading model. Video rendering, scientific simulations, and machine learning training that scale well across many cores will benefit from the 68-core count. For instance, a render farm node or a dedicated compute server for fluid dynamics could see near-linear scaling, making the 230-watt TDP worthwhile. However, photo editing or 3D modeling that relies on single-threaded brushes or interactions will feel sluggish due to the low clock speeds. The data suggests that creation professionals who batch-process large datasets—not interactive design—are the target audience.

Office productivity is also a mismatch. Spreadsheets, word processing, and web browsing use a handful of threads and benefit from higher clock speeds. The Xeon Phi 7250F would underperform a typical desktop processor in these tasks, and its power draw would be wasteful for such light usage. The processor’s architecture is explicitly for server/workstation segments, not interactive desktop use. The absence of integrated graphics (per the FACT PACK) further reinforces that a discrete GPU is mandatory, adding cost and complexity to any office setup.

How It Compares

The FACT PACK lists no nearest rivals, providing no scores or deltaPct values for direct comparison. However, the 50th percentile standing against all CPUs offers a relative anchor. This percentile means that half of the CPUs in the benchmark database perform better in aggregate, while half perform worse. Given the extreme core count, this suggests that the aggregate score is pulled down by weak single-thread results, while multi-thread scores likely rank much higher—though exact figures are absent. Without rival data, the analysis must rely on architectural context: compared to mainstream x86 server processors with fewer cores but higher clocks, the Xeon Phi 7250F trades per-core speed for parallelism. Against GPGPU accelerators, it offers a more general-purpose programming model but with lower peak throughput. The lack of nearestRivals in the data means no specific competitive positioning can be quantified; instead, the processor occupies a niche where 68 cores and 272 threads are the primary differentiators.

Platform and Compatibility

The Intel Xeon Phi 7250F uses the Intel Socket 3647, a socket designed for high-core-count server processors. This socket is shared with other Xeon Scalable parts, meaning the physical platform can support a range of processors, but the Xeon Phi’s Knights Landing architecture requires specific BIOS and firmware support. Memory support includes DDR4, with ECC memory enabled—a critical feature for data integrity in long-running scientific or enterprise workloads. The FACT PACK does not list a memory bus width or channel count, but the presence of ECC memory indicates a reliability-focused design. PCIe support is not specified in the data, so upgrade paths for GPUs or NVMe storage are unclear; however, the server/workstation segment typically includes multiple PCIe lanes. The processor’s multiplier is unlocked? No—the FACT PACK states multiplierUnlocked is false, so overclocking is not an option. The release date is 2016-06-19, making this a mature platform with established software support. Upgrade path considerations: the Socket 3647 platform allows swapping to newer Xeon Scalable processors within the same socket generation, but the Knights Landing architecture is unique—later Xeon Phi models (if any) might use the same socket, but the data does not confirm that. The 14 nm process node and 8,000 million transistors indicate a dense chip, and the lack of an L3 cache (null values) suggests that the L2 cache (512 KB per core) and L1 cache (32 KB per core) are the primary cache hierarchy, which is typical for many-core accelerators. For system builders, the platform requires a server-grade motherboard with appropriate power delivery for the 230-watt TDP and support for ECC DDR4 memory. The part number SR2X0 identifies this specific SKU, aiding in BIOS compatibility checks. Overall, the platform is specialized: it is not a drop-in upgrade for consumer desktops, but rather a dedicated compute node component.