INTEL

Intel Xeon Phi 7285

Intel processor specifications and benchmark scores

68
Cores
272
Threads
1400
GHz Boost
250W
TDP
ECC Memory

At a Glance

Intel
Cores / Threads 68C / 272T
Boost Clock 1400 GHz
Base Clock 1300 GHz
TDP 250W
Architecture Knights Mill
Socket Intel Socket 3647
nm
Process 14 nm
Released Dec 2017

Intel Xeon Phi 7285 Specifications

Xeon Phi 7285 Core Configuration

Processing cores and threading

The Intel Xeon Phi 7285 features 68 physical cores and 272 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
68
Threads
272
SMP CPUs
1

Phi 7285 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Xeon Phi 7285 benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Xeon Phi 7285 by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
1300 GHz
Boost Clock
1400 GHz
Multiplier
13x

Intel's Xeon Phi 7285 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Phi 7285 processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Xeon Phi 7285's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
32 KB (per core)
L2 Cache
512 KB (per core)

Knights Mill Architecture & Process

Manufacturing and design details

The Intel Xeon Phi 7285 is built on Intel's 14 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in Phi 7285 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Knights Mill
Codename
Knights Mill
Process Node
14 nm
Foundry
Intel
Transistors
8,000 million
Generation
Xeon Phi (Knights Mill)

Knights Mill Instruction Set Features

Supported CPU instructions and extensions

The Xeon Phi 7285 by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
AVX
AVX2
AVX-512
FMA3
Intel 64

Power & Thermal

TDP and power specifications

The Intel Xeon Phi 7285 has a TDP (Thermal Design Power) of 250W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
250W

Intel Socket 3647 Platform & Socket

Compatibility information

The Xeon Phi 7285 uses the Intel Socket 3647 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 3647
Package
FC-LGA3647
DDR5

Intel Socket 3647 Memory Support

RAM compatibility and speeds

Memory support specifications for the Phi 7285 define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Xeon Phi 7285 determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR4
ECC Memory
Supported

Product Information

Release and pricing details

The Intel Xeon Phi 7285 is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Xeon Phi 7285 by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Dec 2017
Market
Server/Workstation

About Intel Xeon Phi 7285

The Intel Xeon Phi 7285 is a 68-core, 272-thread processor built for the Knights Mill architecture, targeting server and workstation workloads. It operates at a base clock of 1300 MHz with a boost clock of 1400 MHz, drawing a 250 W TDP within the Intel Socket 3647 platform. This analysis draws exclusively on the provided specification data to contextualize its performance profile.

Benchmark Performance

The benchmark data for the Intel Xeon Phi 7285 presents a unique case: the average benchmark score is recorded as 0, and the percentile versus all CPUs is 50. This combination indicates that no direct performance scores were captured in the current dataset, placing it at the median percentile by default rather than by measured achievement. The absence of scores means the processor’s raw computational output cannot be quantified against other parts in absolute terms.

The lack of nearest rival data further complicates direct comparison. Without deltaPct values or rival names, the dataset offers no percentage-based performance deltas to report. The 68 cores and 272 threads, however, suggest a massive parallel throughput capability, especially for embarrassingly parallel workloads. The 1300-1400 MHz clock range is modest by modern standards, but the sheer core count compensates in multi-threaded scenarios.

In single-threaded tasks, the low clock speed would likely place the 7285 well below contemporary server chips, but the dataset does not provide such scores. The 50th percentile ranking, absent any measured benchmarks, implies that the processor sits in the middle of the distribution purely as a placeholder, not as a reflection of tested performance. Users should treat this as a data gap rather than a verdict on capability.

The cache hierarchy shows 32 KB L1 and 512 KB L2 per core, which aggregates to substantial on-die storage across 68 cores. This structure favors workloads that fit within local cache per core, reducing memory traffic. Without L3 cache data, the memory subsystem relies heavily on the DDR4 support and ECC capability, which are present but unquantified in bandwidth terms.

Who Should Consider It

Given the core and thread counts, the Intel Xeon Phi 7285 is clearly oriented toward high-throughput computing rather than latency-sensitive tasks. Workloads that scale linearly with core count—such as scientific simulations, finite element analysis, and certain machine learning training loops—would theoretically benefit from the 272 threads. The Knights Mill architecture is specifically designed for deep learning inference and training, so users in that domain are the primary audience.

For gaming, this processor is a poor fit. The 1400 MHz boost clock is far below what gaming workloads require for single-thread performance, and the absence of integrated graphics means a discrete GPU is mandatory. The data does not provide gaming benchmarks, but the clock and core configuration strongly implies that frame-rate-driven applications would underperform relative to higher-clocked mainstream parts.

Content creation workloads that are heavily multi-threaded, such as video rendering or 3D scene compilation, could see strong scaling, but the modest clock speed may bottleneck tasks that rely on per-core efficiency. Office productivity, which typically involves low thread counts and bursty single-thread activity, would not utilize the 7285’s strengths; the 250 W TDP and server socket make it an impractical choice for standard desktop use.

The ECC memory support and DDR4 compatibility point to reliability-focused environments, such as long-running server processes or data center deployments where error correction is critical. The 50th percentile ranking, though not based on scores, places it in a neutral position—neither top-tier nor bottom-tier in the overall CPU hierarchy, which aligns with a specialized niche part rather than a general-purpose champion.

How It Compares

The nearestRivals field in the dataset is empty, meaning there are no direct competitor comparisons available. This absence is notable: the Xeon Phi 7285 has no cited rival scores, no deltaPct values, and no named alternatives in the provided facts. Consequently, any positional analysis against specific parts like AMD EPYC or other Intel Xeon models cannot be made from this data.

In the absence of rival data, the 7285 stands alone in the dataset as a unique entry. Its 68 cores and 272 threads are extreme even among server processors, but without measured scores, its practical standing relative to other high-core-count parts remains undefined. The percentile of 50 is the only positional marker, and it is not derived from performance metrics.

This lack of comparison data means that prospective buyers cannot use this page to benchmark the 7285 against competing silicon. The processor’s architecture, Knights Mill, is distinct from mainstream Xeon designs, and the dataset does not bridge that gap with quantitative rival assessments. As such, the comparison section is necessarily void of specific percentage deltas or named competitors.

For a hardware analyst, this is a significant limitation. The write-up must rely on architectural inference rather than numerical evidence. The 7285’s position in the market, based on the facts provided, is that of an uncompared outlier—its performance claims, if any, are not substantiated by the nearestRivals data.

FAQ

Q: How many cores and threads does the Intel Xeon Phi 7285 have?

A: It has 68 cores and 272 threads, as listed in the specification data.

Q: What is the base and boost clock speed?

A: The base clock is 1300.00 MHz and the boost clock is 1400.00 MHz, per the fact pack.

Q: Does it support ECC memory?

A: Yes, ECC memory support is enabled, and the processor uses DDR4 memory.

Q: What is the thermal design power (TDP)?

A: The TDP is 250 watts, which is a high figure indicating substantial cooling requirements.

Q: What socket does the Xeon Phi 7285 use?

A: It uses Intel Socket 3647, which is typical for server and workstation platforms.

Q: Is there any benchmark score available for this processor?

A: The average benchmark score is 0, and the percentile versus all CPUs is 50, indicating no measured scores exist in the current dataset.

Power and Thermals

The 250 W TDP places the Intel Xeon Phi 7285 in a high-power class, requiring robust thermal solutions. This is not a processor for standard air coolers found in consumer desktops; instead, it demands server-grade cooling, such as high-end heatsinks with active fans or liquid cooling loops designed for dense compute nodes. The Intel Socket 3647 platform typically supports such cooling through its large mounting mechanism and server chassis airflow.

The 14 nm process node and 8,000 million transistors contribute to the power draw, but the architecture’s design for parallel throughput means that the 250 W is spread across 68 cores. Under full load, the thermal output would be significant, and the boost clock of 1400 MHz suggests that all cores can operate near that frequency simultaneously, sustaining high heat generation. The lack of a multiplier unlock means overclocking is not possible, so users cannot trade power for additional performance.

Cooling tier implications are clear: the 7285 requires a cooling solution capable of dissipating 250 W continuously. In a multi-socket server, this necessitates careful chassis design with high-static-pressure fans and ducted airflow. The absence of integrated graphics reduces one heat source, but the CPU alone is a substantial thermal load. The data does not provide specific cooler recommendations, but the TDP class strongly indicates that passive cooling is insufficient, and active server heatsinks are mandatory.

The process node and transistor count suggest that the 7285 was designed to maximize compute density per watt, but the raw 250 W figure still places it above mainstream desktop processors by roughly 2-3 times. Users must factor in power delivery as well—the socket 3647 motherboard must supply adequate VRM cooling to handle sustained current draw. The ECC memory support also implies a server environment where power efficiency is secondary to reliability and throughput.

Detailed benchmark scores and charts for the Intel Xeon Phi 7285 are below.

Benchmark Scores

No benchmark data available for this CPU.

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