AMD Ryzen 5 8640U
AMD processor specifications and benchmark scores
AMD Ryzen 5 8640U Specifications
Ryzen 5 8640U Core Configuration
Processing cores and threading
The AMD Ryzen 5 8640U features 6 physical cores and 12 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.
5 8640U Clock Speeds
Base and boost frequencies
Clock speed is a critical factor in Ryzen 5 8640U 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 Ryzen 5 8640U by AMD can dynamically adjust its frequency based on workload and thermal headroom.
AMD's Ryzen 5 8640U Cache Hierarchy
L1, L2, L3 cache sizes
Cache memory is ultra-fast storage built directly into the 5 8640U 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 Ryzen 5 8640U's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.
Zen 4 Architecture & Process
Manufacturing and design details
The AMD Ryzen 5 8640U 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 5 8640U incorporate advanced branch prediction and out-of-order execution for optimal performance.
Zen 4 Instruction Set Features
Supported CPU instructions and extensions
The Ryzen 5 8640U 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.
5 8640U Power & Thermal
TDP and power specifications
The AMD Ryzen 5 8640U has a TDP (Thermal Design Power) of 28W, 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.
AMD Socket FP8 Platform & Socket
Compatibility information
The Ryzen 5 8640U uses the AMD Socket FP8 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.
AMD Socket FP8 Memory Support
RAM compatibility and speeds
Memory support specifications for the 5 8640U 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 Ryzen 5 8640U 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.
AMD's Ryzen 5 8640U Integrated Graphics
Built-in GPU specifications
The AMD Ryzen 5 8640U includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the 5 8640U provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.
Ryzen 5 8640U by AMD AI & NPU
Neural processing capabilities
The AMD Ryzen 5 8640U features a dedicated Neural Processing Unit (NPU) for accelerating AI and machine learning workloads. This specialized hardware offloads AI tasks from the CPU cores, improving efficiency in applications like real-time video enhancement, noise cancellation, and intelligent assistants. NPU performance is measured in TOPS (Tera Operations Per Second), with higher values indicating faster AI processing. The NPU enables on-device AI capabilities without relying on cloud services, enhancing privacy and reducing latency.
Ryzen 5 8640U Product Information
Release and pricing details
The AMD Ryzen 5 8640U 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 Ryzen 5 8640U by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.
Ryzen 5 8640U 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 Ryzen 5 8640U performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.
cinebench_cinebench_r15_singlecoreSource
Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how AMD Ryzen 5 8640U handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.
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 Ryzen 5 8640U.
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 Ryzen 5 8640U.
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 Ryzen 5 8640U after thermal limits kick in.
cinebench_cinebench_r23_singlecoreSource
Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD Ryzen 5 8640U maintains boost clocks under continuous load.
geekbench_multicoreSource
Geekbench multi-core tests AMD Ryzen 5 8640U across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance.
geekbench_singlecoreSource
Geekbench single-core measures how fast one thread of AMD Ryzen 5 8640U can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use.
passmark_data_compressionSource
Data compression measures how fast AMD Ryzen 5 8640U can compress and decompress files. This is important for archiving, backup software, and file transfer applications.
passmark_data_encryptionSource
Data encryption tests how fast AMD Ryzen 5 8640U 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. Disk encryption, secure browsing, and VPN performance all benefit from faster encryption.
passmark_extended_instructionsSource
Extended instructions tests AMD Ryzen 5 8640U performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads.
passmark_find_prime_numbersSource
Find prime numbers tests AMD Ryzen 5 8640U ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks. The test reveals raw mathematical processing capability.
passmark_floating_point_mathSource
Floating point math measures how AMD Ryzen 5 8640U handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations.
passmark_integer_mathSource
Integer math tests how fast AMD Ryzen 5 8640U 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. Higher scores benefit applications that work primarily with non-decimal numbers.
passmark_multithreadSource
PassMark multi-thread tests AMD Ryzen 5 8640U 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. Results can be compared against millions of submissions in the PassMark database.
passmark_physicsSource
Physics tests how AMD Ryzen 5 8640U handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements.
passmark_random_string_sortingSource
Random string sorting measures how fast AMD Ryzen 5 8640U can organize text data. This is important for database operations, search indexing, and data processing applications.
passmark_single_threadSource
PassMark single-thread measures per-core performance of AMD Ryzen 5 8640U across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.
passmark_singlethreadSource
PassMark single-thread measures per-core performance of AMD Ryzen 5 8640U across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use. Many legacy applications and games still depend heavily on single-thread speed.
About AMD Ryzen 5 8640U
The AMD Ryzen 5 8640U is engineered on the 4nm "Zen 4" architecture, codenamed Hawk Point, integrating six cores and twelve threads within a 28W TDP envelope for modern thin-and-light laptops. Its single-core turbo frequency of up to 4.90 GHz and a substantial 16MB shared L3 cache deliver strong responsiveness, while the integrated AMD Radeon 760M graphics provide capable mainstream gaming and content creation performance. In synthetic benchmarks, the processor demonstrates balanced capabilities, achieving a multithreaded PassMark score of 20,322 points and excelling in specialized tasks like data compression with 230,080 points. This performance profile firmly places the Ryzen 5 8640U in the premium mobile segment, competing directly with Intel's Core Ultra 5 and 7 series for users prioritizing efficiency and potent multitasking in ultrathin form factors.
A detailed score overview reveals the Ryzen 5 8640U's computational strengths, with integer math reaching 68,051 points and floating-point operations scoring 40,330 points, indicating robust performance for productivity and engineering software. Its competitive random string sorting score of 28,066 points further reflects strong memory subsystem and cache performance critical for general system snappiness. For system builders and OEMs, this chip is a cornerstone for designing sleek, fanless or minimally-cooled devices that do not compromise on processing power for everyday professional workloads. When configuring a system around the Ryzen 5 8640U, pairing it with fast LPDDR5x memory and a PCIe 4.0 NVMe SSD is recommended to fully leverage the platform's bandwidth and low-latency advantages, creating a highly responsive portable computing experience.
The Intel Equivalent of Ryzen 5 8640U
Looking for a similar processor from Intel? The Intel Core i5-14450HX offers comparable performance and features in the Intel lineup.
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