Ryzen 5 8640U
AMD
PassMark
20,274
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Overview
The Ryzen 5 8640U is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-U (Zen 4) (2023−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 20,274 points. Launch price was $299.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
FPS Benchmarks
Predicted performance for Ryzen 5 8640U across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Technical Analysis
Detailed breakdown of Ryzen 5 8640U specifications and capabilities.
Processing Power
The Ryzen 5 8640U is a 6-core / 12-thread processor based on the Hawk Point-U (Zen 4) (2023−2025) architecture, manufactured on a 4 nm process node. It reaches a maximum boost clock of 4.9 GHz from a base frequency of 3.5 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 16 MB (total) of L3 cache, plus 1 MB (per core) of L2 cache and 64 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 20,274, placing it in the Mid-Range performance tier as a Recent generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 2,519, while multi-core reaches 10,308. Cinebench R23 multi-core (measuring sustained rendering workload performance) scores 10,675.
| Specification | Ryzen 5 8640U |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 6C / 12T |
| Max Boost ClockPeak single-core speed under boost | 4.9 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.5 GHz |
| ArchitectureCPU microarchitecture design | Hawk Point-U (Zen 4) (2023−2025) |
| Process NodeFabrication technology — smaller = more efficient | 4 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 16 MB (total) |
| L2 CachePer-core fast cache for frequently accessed data | 1 MB (per core) |
| L1 CacheUltra-fast per-core cache | 64 kB (per core) |
| Die SizePhysical silicon area of the processor | 178 mm2 |
| Transistor CountMore transistors = more capabilities | 25,000 million |
| Max TemperatureMaximum safe operating temperature (Tjmax) | 100 °C |
| 64-bit Support | Yes |
| PassMark ScoreOverall multi-threaded benchmark score | 20,274 |
| Cinebench R23 MultiSustained multi-core rendering performance | 10,675 |
| Geekbench 6 SingleSingle-core performance — most relevant for gaming | 2,519 |
| Geekbench 6 MultiMulti-core parallel workload performance | 10,308 |
Memory & Platform
The Ryzen 5 8640U fits into the FP8 socket and supports PCIe 4.0 with 20 total PCIe lanes for expansion cards and storage. It supports DDR5 memory at speeds up to LPDDR5x-7500 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 256 GB across 2 channels (dual-channel doubles bandwidth). It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers. Integrated graphics: Radeon 760M — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.
| Specification | Ryzen 5 8640U |
|---|---|
| TypeDesktop or Laptop processor | Laptop |
| SocketMotherboard socket required | FP8 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 4.0 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 20 |
| RAM TypeSupported memory standard | DDR5 |
| Max RAM SpeedMaximum officially supported memory frequency | LPDDR5x-7500 |
| Max RAM CapacityMaximum installable memory | 256 GB |
| RAM ChannelsDual-channel doubles bandwidth vs single-channel | 2 |
| ECC SupportError-Correcting Code memory — prevents data corruption | Yes |
| Integrated GPUBuilt-in graphics processor | Radeon 760M |
| Compatible ChipsetsMotherboard chipsets that support this CPU | SoC |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Advanced Features
The Ryzen 5 8640U is primarily designed for Productivity. It supports AVX-512 instructions — specialized SIMD operations that significantly accelerate AI inference, scientific computing, and video encoding workloads. Virtualization: AMD-V (SVM) — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the Core i5-1335U.
| Specification | Ryzen 5 8640U |
|---|---|
| Primary Use CaseIntended workload category | Productivity |
| OverclockingWhether CPU clock can be manually increased | 🔒 Locked |
| AVX-512Advanced vector instructions for AI/ML workloads | ✅ Supported |
| VirtualizationHardware-assisted virtualization technology | AMD-V (SVM) |
| Direct CompetitorMarket equivalent from rival manufacturer | Core i5-1335U |
Power & Cooling
The Ryzen 5 8640U has a rated TDP (Thermal Design Power) of 28 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: Integrated laptop cooling.
| Specification | Ryzen 5 8640U |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 28 Watt |
| Max TemperatureMaximum safe junction temperature (Tjmax) | 100 °C |
| Included CoolerStock cooler bundled in the box | No |
| Recommended CoolerSuggested aftermarket cooling solution | Integrated laptop cooling |
Value Analysis
Performance ranking position: #768 out of all indexed processors.
| Specification | Ryzen 5 8640U |
|---|---|
| Launch PriceOriginal retail price at launch | $299 |
| Performance RankPosition in overall performance ranking | #768 |
| Release DateLaunch date | 6 December 2023 (1 year ago) |
| Release Year | 2023 |
| DesignerArchitecture designer (e.g. Intel, AMD) | AMD |
| ManufacturerFabrication foundry (e.g. TSMC) | TSMC |
Similar Performance
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Our Recommendation for Ryzen 5 8640U
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Minimum (Avoid Bottleneck) (12)
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High-End (Max Performance) (12)
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