AMD

AMD EPYC 7663

AMD processor specifications and benchmark scores

56
Cores
112
Threads
3.5
GHz Boost
240W
TDP
🛡️ECC Memory

AMD EPYC 7663 Specifications

⚙️

EPYC 7663 Core Configuration

Processing cores and threading

The AMD EPYC 7663 features 56 physical cores and 112 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
56
Threads
112
CCDs
8
Cores per CCD
7
SMP CPUs
2
⏱️

EPYC 7663 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in EPYC 7663 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 7663 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2000 GHz
Boost Clock
3.5 GHz
Multiplier
20x
💾

AMD's EPYC 7663 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the EPYC 7663 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 7663's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
512 KB (per core)
L3 Cache
256 MB (shared)
🏗️

Zen 3 Architecture & Process

Manufacturing and design details

The AMD EPYC 7663 is built on AMD's 7 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 7663 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Zen 3
Codename
Milan
Process Node
7 nm
Foundry
TSMC
Transistors
33,200 million
Die Size
8x 81 mm²
Generation
EPYC (Zen 3 (Milan))
🔢

Zen 3 Instruction Set Features

Supported CPU instructions and extensions

The EPYC 7663 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
Precision Boost 2
XFR 2
🔌

EPYC 7663 Power & Thermal

TDP and power specifications

The AMD EPYC 7663 has a TDP (Thermal Design Power) of 240W, 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
240W
Configurable TDP
225 W
🔧

AMD Socket SP3 Platform & Socket

Compatibility information

The EPYC 7663 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 4, 128 Lanes(CPU only)
Package
FCLGA-4094
DDR5

AMD Socket SP3 Memory Support

RAM compatibility and speeds

Memory support specifications for the EPYC 7663 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 7663 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
204.8 GB/s
ECC Memory
Supported
📦

EPYC 7663 Product Information

Release and pricing details

The AMD EPYC 7663 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 7663 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Mar 2021
Launch Price
$6366
Market
Server/Workstation
Status
Active
Part Number
100-000000318100-100000318WOF

EPYC 7663 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 7663 performs in parallel rendering workloads.

cinebench_cinebench_r15_multicore #38 of 1788
7,032
47%
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 7663 handles tasks that can't be parallelized.

cinebench_cinebench_r15_singlecore #38 of 1245
992
47%
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 7663. The more demanding workload provides better differentiation between current-generation processors. Content creators and 3D artists use this benchmark to estimate real-world render performance.

cinebench_cinebench_r20_multicore #38 of 1788
29,304
47%
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 7663. The increased complexity provides more accurate performance differentiation between modern CPUs. Single-thread performance remains critical for gaming and applications with serial bottlenecks.

cinebench_cinebench_r20_singlecore #38 of 1784
4,137
47%
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 7663 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss. Professional users rely on R23 scores to predict real-world rendering performance under sustained workloads.

cinebench_cinebench_r23_multicore #38 of 1788
69,773
47%
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 7663 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance. This score is particularly important for understanding real-world responsiveness beyond initial boost behavior.

cinebench_cinebench_r23_singlecore #38 of 1788
9,850
47%
Max: 20,979
Compare with other CPUs

passmark_data_compressionSource

Data compression measures how fast AMD EPYC 7663 can compress and decompress files. This is important for archiving, backup software, and file transfer applications. Higher scores mean faster ZIP, RAR, and backup operations. Software distribution and cloud storage services benefit from efficient compression performance.

passmark_data_compression #26 of 528
1,447,020
27%
Max: 5,427,555
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
5,427,555
#2 AMD EPYC 9845
4,680,013
#3 AMD EPYC 9755
4,517,407
#4 AMD EPYC 9745
3,929,890

📍 Nearby Performers

passmark_data_encryptionSource

Data encryption tests how fast AMD EPYC 7663 can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications. Modern CPUs with AES-NI hardware acceleration score significantly higher.

passmark_data_encryption #23 of 528
111,725
35%
Max: 316,606
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
316,606
#2 AMD EPYC 9845
296,808
#3 AMD EPYC 9755
284,927
#4 AMD EPYC 9754
231,891
#5 AMD EPYC 9745
229,447

passmark_extended_instructionsSource

Extended instructions tests AMD EPYC 7663 performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads. Video encoding and image processing heavily utilize SIMD capabilities. Machine learning inference and scientific computing also benefit from strong SIMD performance.

passmark_extended_instructions #34 of 528
73,719
19%
Max: 392,159
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
392,159
#2 AMD EPYC 9845
314,798
#3 AMD EPYC 9755
303,321
#4 AMD EPYC 9745
280,477

passmark_find_prime_numbersSource

Find prime numbers tests AMD EPYC 7663 ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks.

passmark_find_prime_numbers #25 of 528
676
28%
Max: 2,422

passmark_floating_point_mathSource

Floating point math measures how AMD EPYC 7663 handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations. Game physics engines also rely heavily on floating point operations. Scientific and engineering applications benefit significantly from higher floating point scores.

passmark_floating_point_math #27 of 528
251,535
22%
Max: 1,141,430
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
1,141,430
#2 AMD EPYC 9845
978,377
#3 AMD EPYC 9755
922,900
#4 AMD EPYC 9745
761,219
#5 AMD EPYC 9655P
710,260

passmark_integer_mathSource

Integer math tests how fast AMD EPYC 7663 processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance. Encryption and data processing heavily rely on integer operations.

passmark_integer_math #23 of 528
468,096
26%
Max: 1,806,439
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
1,806,439
#2 AMD EPYC 9845
1,687,531
#3 AMD EPYC 9755
1,549,946
#4 AMD EPYC 9745
1,224,315

passmark_multithreadSource

PassMark multi-thread tests AMD EPYC 7663 across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score. The combined result reflects general-purpose parallel computing capability.

passmark_multithread #26 of 528
82,087
47%
Max: 174,825
Compare with other CPUs

passmark_physicsSource

Physics tests how AMD EPYC 7663 handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements. Games with complex physics benefit from higher scores. Engineering applications like structural analysis and fluid dynamics also rely on physics computation.

passmark_physics #26 of 528
8,020
29%
Max: 27,806
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9755
27,806
#2 AMD EPYC 9655P
26,810
#3 AMD EPYC 9655
25,958
#4 AMD EPYC 9684X
24,686
#5 AMD EPYC 9575F
22,021

passmark_random_string_sortingSource

Random string sorting measures how fast AMD EPYC 7663 can organize text data. This is important for database operations, search indexing, and data processing applications. Applications that process large amounts of text benefit from higher scores. Database servers and search engines rely heavily on efficient string manipulation.

passmark_random_string_sorting #21 of 528
184,367
30%
Max: 609,901
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
609,901
#2 AMD EPYC 9755
571,185
#3 AMD EPYC 9845
538,060
#4 AMD EPYC 9745
468,975
#5 AMD EPYC 9655P
455,310

passmark_single_threadSource

PassMark single-thread measures per-core performance of AMD EPYC 7663 across various computational tasks. This score is critical for gaming and single-threaded applications.

passmark_single_thread #437 of 528
2,606
51%
Max: 5,097
Compare with other CPUs

passmark_singlethreadSource

PassMark single-thread measures per-core performance of AMD EPYC 7663 across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.

passmark_singlethread #437 of 528
2,606
51%
Max: 5,097
Compare with other CPUs

About AMD EPYC 7663

The AMD EPYC 7663 is a high-performance processor built on AMD's Zen 3 architecture, delivering exceptional computing power for enterprise and data center environments. With 56 cores and 112 threads, the AMD EPYC 7663 is designed to handle complex workloads with ease, making it a strong contender in the server market. It operates at a base clock speed of 2.00 GHz and can boost up to 3.50 GHz, ensuring consistent performance across demanding applications. The AMD EPYC 7663 features a 256 MB shared L3 cache, which enhances data access speeds and contributes to its robust performance capabilities. Its 7 nm manufacturing process further optimizes power efficiency while maintaining high performance levels. Benchmark data highlights the impressive capabilities of the AMD EPYC 7663, with a PassMark Data Compression score of 1,447,020 points, showcasing its ability to handle large data sets efficiently. The AMD EPYC 7663 also excels in integer math with 468,096 points, and it maintains strong performance in floating-point calculations with 251,535 points. Its random string sorting and data encryption benchmarks, at 184,367 and 111,725 points respectively, further demonstrate its versatility in a wide range of tasks. These results confirm the AMD EPYC 7663 as a formidable processor for high-performance computing environments. The performance metrics solidify the AMD EPYC 7663's reputation as a reliable and powerful solution for modern data centers. In the competitive landscape, the AMD EPYC 7663 stands out against its rivals with a combination of core count, clock speed, and efficiency. It offers a compelling value proposition for organizations seeking high-performance computing without compromising on power consumption. The AMD EPYC 7663 is particularly well-suited for virtualization, cloud computing, and large-scale database operations. Pairing the AMD EPYC 7663 with high-speed DDR4 memory and advanced storage solutions can further enhance its performance. The AMD EPYC 7663 is an ideal choice for system builders aiming to construct high-capacity, energy-efficient servers. When paired with the right components, the AMD EPYC 7663 delivers outstanding results that meet the demands of modern enterprise computing. The AMD EPYC 7663 remains a top choice for those requiring powerful and scalable server solutions.

The Intel Equivalent of EPYC 7663

Looking for a similar processor from Intel? The Intel Core i5-11500 offers comparable performance and features in the Intel lineup.

Intel Core i5-11500

Intel • 6 Cores

View Specs Compare

Popular AMD EPYC 7663 Comparisons

See how the EPYC 7663 stacks up against similar processors from the same generation and competing brands.

Compare EPYC 7663 with Other CPUs

Select another CPU to compare specifications and benchmarks side-by-side.

Browse CPUs