AMD

AMD EPYC 7251

AMD processor specifications and benchmark scores

8
Cores
16
Threads
2.9
GHz Boost
120W
TDP
🔓Unlocked 🛡️ECC Memory

AMD EPYC 7251 Specifications

⚙️

EPYC 7251 Core Configuration

Processing cores and threading

The AMD EPYC 7251 features 8 physical cores and 16 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
8
Threads
16
SMP CPUs
2
⏱️

EPYC 7251 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in EPYC 7251 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 EPYC 7251 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.1 GHz
Boost Clock
2.9 GHz
Multiplier
21x 🔓
💾

AMD's EPYC 7251 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the EPYC 7251 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 EPYC 7251's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
96 KB (per core)
L2 Cache
512 KB (per core)
L3 Cache
32 MB (shared)
🏗️

Zen Architecture & Process

Manufacturing and design details

The AMD EPYC 7251 is built on AMD'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 EPYC 7251 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Zen
Codename
Naples
Process Node
14 nm
Foundry
GlobalFoundries
Transistors
4,800 million
Die Size
213 mm²
Generation
EPYC (Zen (Naples))
🔢

Zen Instruction Set Features

Supported CPU instructions and extensions

The EPYC 7251 by AMD 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
SSE4A
SSE4.1
SSE4.2
AES
AVX
AVX2
BMI1
BMI2
SHA
F16C
FMA3
AMD64
AMD-V
SMAP
SMEP
SMT
XFR
🔌

EPYC 7251 Power & Thermal

TDP and power specifications

The AMD EPYC 7251 has a TDP (Thermal Design Power) of 120W, 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
120W
🔧

AMD Socket SP3 Platform & Socket

Compatibility information

The EPYC 7251 uses the AMD Socket SP3 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
AMD Socket SP3
PCIe
Gen 3
Package
FCLGA-4094
DDR5

AMD Socket SP3 Memory Support

RAM compatibility and speeds

Memory support specifications for the EPYC 7251 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 EPYC 7251 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
Memory Bus
Eight-channel
Memory Bandwidth
153.6 GB/s
ECC Memory
Supported
📦

EPYC 7251 Product Information

Release and pricing details

The AMD EPYC 7251 is manufactured by AMD 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 EPYC 7251 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Jun 2017
Market
Server/Workstation
Status
Active
Part Number
PS7251BFV8SAFPS7251BFAFWOF

EPYC 7251 Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how AMD EPYC 7251 performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #651 of 1788
1,279
9%
Max: 14,978
Compare with other CPUs

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how AMD EPYC 7251 handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance. A higher single-core score means snappier system responsiveness in everyday use.

cinebench_cinebench_r15_singlecore #651 of 1245
180
9%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on AMD EPYC 7251. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #651 of 1788
5,331
9%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of AMD EPYC 7251. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #651 of 1784
752
9%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of AMD EPYC 7251 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #651 of 1788
12,694
9%
Max: 148,601
Compare with other CPUs

🏆 Top 5 Performers

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD EPYC 7251 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #651 of 1788
1,792
9%
Max: 20,979
Compare with other CPUs

About AMD EPYC 7251

The AMD EPYC 7251 CPU stands out as a reliable workhorse for server environments, delivering solid practical performance through its 8 cores and 16 threads that handle multi-threaded workloads with efficiency. With a base clock of 2.10 GHz boosting up to 2.90 GHz, it tackles everyday computing tasks like virtualization and data processing without breaking a sweat. Benchmark results from Cinebench R23 multicore show it scoring 12,694 points, indicating strong sustained performance in rendering and simulation scenarios. In Cinebench R20 multicore tests, it achieves 5,331 points, proving its capability in prolonged computational runs. The 32 MB shared L3 cache plays a crucial role in minimizing latency during cache-intensive operations, enhancing overall system responsiveness. Released in 2017 on the 14 nm Zen architecture, this processor remains relevant for budget-conscious setups needing consistent throughput. For workstation performance, the EPYC 7251 processor excels in creative and engineering applications, where its balanced architecture supports tasks like 3D modeling and video editing. Single-core Cinebench R23 benchmarks hit 1,792 points, allowing for smooth handling of lighter, sequential workloads that demand quick responsiveness. In multicore Cinebench R15 tests, it posts 1,279 points, demonstrating respectable scaling when multiple applications run concurrently. The 120W TDP ensures it operates within manageable thermal limits, making it suitable for compact workstation builds without excessive cooling demands. Compared to higher-end siblings, the AMD EPYC 7251 offers a cost-effective entry into AMD's EPYC lineup for professionals who prioritize stability over raw speed. Its Socket SP3 compatibility opens doors to scalable configurations, ideal for evolving workstation needs. When evaluating cost effectiveness, the AMD EPYC 7251 shines as an economical choice for small to medium enterprises seeking high value per dollar in server deployments. At its launch price point and considering its age, it provides impressive multicore performance for under $500 in the used market, far outperforming similarly priced Intel alternatives in threaded efficiency. Benchmarks like Cinebench R20 single-core at 752 points highlight its adequacy for mixed-use cases without overkill on power draw. The 14 nm process, while not the latest, contributes to lower manufacturing costs that trickle down to consumers, making it a smart pick for virtualization farms or edge computing. Over time, its durability in 24/7 operations adds to the ROI, as it avoids frequent upgrades in stable environments. Overall, this processor delivers benchmark-validated bang for the buck, especially in power-sensitive data centers. Platform requirements for the EPYC 7251 CPU are straightforward yet demand careful planning to maximize its potential in modern setups. It requires an AMD Socket SP3 motherboard, typically found in rackmount servers from vendors like Supermicro or Dell, ensuring compatibility with ECC memory for error-free operations. Users need DDR4-2666 RAM modules, with support for up to 2TB across eight channels to feed its cache-hungry design effectively. A robust PSU handling 120W TDP is essential, paired with adequate airflow to maintain turbo boosts under load. While it integrates well with NVIDIA GPUs for accelerated computing, BIOS updates may be needed for optimal PCIe lane utilization. As part of the Naples generation, integrating it into newer systems might involve legacy support checks, but its efficiency in NUMA-aware applications makes the investment worthwhile for targeted builds.

The Intel Equivalent of EPYC 7251

Looking for a similar processor from Intel? The Intel Core i5-7640X offers comparable performance and features in the Intel lineup.

Intel Core i5-7640X

Intel • 4 Cores

View Specs Compare

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