AMD

AMD EPYC 9255

AMD processor specifications and benchmark scores

24
Cores
48
Threads
4.8
GHz Boost
200W
TDP
🛡️ECC Memory

AMD EPYC 9255 Specifications

⚙️

EPYC 9255 Core Configuration

Processing cores and threading

The AMD EPYC 9255 features 24 physical cores and 48 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
24
Threads
48
SMP CPUs
2
⏱️

EPYC 9255 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in EPYC 9255 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 9255 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.25 GHz
Boost Clock
4.8 GHz
Multiplier
32.5x
💾

AMD's EPYC 9255 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the EPYC 9255 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 9255's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
80 KB (per core)
L2 Cache
1 MB (per core)
L3 Cache
128 MB (shared)
🏗️

Zen 5 Architecture & Process

Manufacturing and design details

The AMD EPYC 9255 is built on AMD's 4 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 9255 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Zen 5
Codename
Turin
Process Node
4 nm
Foundry
TSMC
Transistors
33,260 million
Die Size
4x 70.6 mm²
Generation
EPYC (Zen 5 (Turin))
🔢

Zen 5 Instruction Set Features

Supported CPU instructions and extensions

The EPYC 9255 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
AVX-512
BMI1
BMI2
SHA
F16C
FMA3
AMD64
AMD-V
SMAP
SMEP
SMT
Precision Boost 2
🔌

EPYC 9255 Power & Thermal

TDP and power specifications

The AMD EPYC 9255 has a TDP (Thermal Design Power) of 200W, 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
200W
Configurable TDP
200-240 W
🔧

AMD Socket SP5 Platform & Socket

Compatibility information

The EPYC 9255 uses the AMD Socket SP5 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 SP5
PCIe
Gen 5, 128 Lanes(CPU only)
Package
FC-LGA6096
DDR5

AMD Socket SP5 Memory Support

RAM compatibility and speeds

Memory support specifications for the EPYC 9255 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 9255 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
DDR5
Memory Bus
Twelve-channel
Memory Bandwidth
576.0 GB/s
ECC Memory
Supported
📦

EPYC 9255 Product Information

Release and pricing details

The AMD EPYC 9255 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 9255 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Oct 2024
Launch Price
$2495
Market
Server/Workstation
Status
Active
Part Number
100-000000694

EPYC 9255 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 9255 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 #46 of 1788
6,483
43%
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 9255 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 #46 of 1245
915
43%
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 9255. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #46 of 1788
27,013
43%
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 9255. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #46 of 1784
3,813
43%
Max: 8,811
Compare with other CPUs

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 9255 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #46 of 1788
64,318
43%
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 9255 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #46 of 1788
9,080
43%
Max: 20,979
Compare with other CPUs

About AMD EPYC 9255

The AMD EPYC 9255 delivers formidable performance for compute-intensive workloads, leveraging its 24 cores and 48 threads to dominate multi-threaded benchmarks. With a base clock of 3.25 GHz and a turbo boost up to 4.80 GHz, this Zen 5 (Turin)-based CPU achieves 64,318 points in Cinebench R23 multi-core, outpacing predecessors like the EPYC 7543 while maintaining efficiency on the 4 nm process. Its 128 MB shared L3 cache ensures rapid data access, ideal for virtualization, rendering, or AI training tasks, though single-core performance (9,080 points in R23) remains secondary to consumer-focused Ryzen chips. The EPYC 9255’s 200W TDP necessitates robust cooling, but its raw throughput justifies power consumption in server or workstation environments. For professionals, this processor redefines what a 2P (dual-processor) system can achieve without sacrificing reliability.

Gaming on AMD's EPYC 9255 is a niche proposition, as its design prioritizes throughput over low-latency responsiveness. While single-core scores like 3,813 points in Cinebench R20 are respectable, gaming performance hinges on GPU bottlenecks rather than core counts. In titles optimized for fewer threads, the EPYC 9255 holds its own against high-end desktop CPUs, but its lack of PCIe 5.0 GPU overclocking features and higher memory latency make it a suboptimal choice compared to Ryzen 9000-series parts. Enthusiasts seeking a hybrid workstation-gaming rig might tolerate its power consumption, but mainstream gamers should avoid this server chip. That said, simulation-heavy games or streaming setups could benefit from its background processing prowess.

  1. Socket SP5 compatibility ensures future-proofing with DDR5 and PCIe 5.0 support.
  2. VRM requirements demand high-phase power delivery for the 200W TDP under load.
  3. Chipset options like the AMD WRX90 cater to workstation-class expansion and storage.
  4. ECC memory support appeals to professionals needing data integrity, not just speed.
  5. Ample PCIe lanes enable multi-GPU setups or high-speed NVMe

The Intel Equivalent of EPYC 9255

Looking for a similar processor from Intel? The Intel Core i5-14500HX offers comparable performance and features in the Intel lineup.

Intel Core i5-14500HX

Intel • 14 Cores

View Specs Compare

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