AMD Ryzen 5 8640U
- Cores: 6
- L3 cache: 16MB (shared)
- TDP: 15-30 W
- Transistor size: 4 nm
Ryzen 5 8640U - laptop processor produced by Amd for socket FP8 that has 6 cores and 12 threads. The base clock frequency of the CPU is 3500 MHz, but due to Turbo Core technology, it can perform up to 4900 MHz. The size of the L3 cache is 16 MB. Please note that this chip has integrated graphics Radeon 760M.
Review
Compare AMD Ryzen 5 8640U with other CPUs
Test in Benchmarks
Performance test of AMD Ryzen 5 8640U in benchmarksCinebench
GeekBench v6
| File compression | 1080 MB/sec |
| Clang compilation | 71 Klines/sec |
| HTML 5 Browser | 226.5 pages/sec |
| PDF Renderer | 260.8 Mpixels/sec |
| Text processing | 259.8 pages/sec |
| Background blur | 48.1 images/sec |
| Photo processing | 94.5 images/sec |
| Ray tracing | 15.5 Mpixels/sec |
PassMark
| Integer math | 66.4 GOps/sec |
| Floating point math | 39.6 GOps/sec |
| Find prime numbers | 68M Primes/sec |
| Random string sorting | 27.7M Strings/sec |
| Data encryption | 13.7 GBytes/sec |
| Data compression | 226.7 MBytes/sec |
| Physics | 1015 Frames/sec |
| Extended instructions | 16.4B Matrices/sec |
Performance Per Watt
| Cinebench 2024 / Watt | 20.4 PPW |
| Geekbench 6 Multi / Watt | 343.6 PPW |
| Passmark CPU Mark / Watt | 666.3 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Specifications
Ryzen 5 8640U technical specificationsGeneral
| Vendor | Amd |
| Released | December 6, 2023 |
| Type | Laptop |
| Instruction Set | x86-64 |
| Codename | Zen 4 (Hawk Point) |
| Integrated GPU | Radeon 760M |
| Intel Equivalent | - Intel Core Ultra 7 155U |
AMD Ryzen CPU ranking - 86th place
CPU
| P-Cores | 6 |
| P-Threads | 12 |
| Base Frequency (P) | 3.5 GHz |
| Turbo Boost Frequency (P) | 4.9 GHz |
| Total Cores | 6 |
| Total Threads | 12 |
| Bus Frequency | 100 MHz |
| Multiplier | 35x |
| L1 Cache | 64K (per core) |
| L2 Cache | 1MB (per core) |
| L3 Cache | 16MB (shared) |
| Unlocked Multiplier | No |
Package
| Transistors | 25 billions |
| Fabrication Process | 4 nm |
| TDP (PL1) | 15-30 W (configurable) |
| Socket | FP8 |
| Peak Temperature | 100°C |
Laptop processors ranking - 143rd place
iGPU
| Integrated Graphics | Radeon 760M |
| GPU Base Clock | 800 MHz |
| GPU Boost Clock | 2600 MHz |
| Shading Units | 512 |
| TMUs | 32 |
| ROPs | 16 |
| Execution Units | 8 |
| TGP | 15 W |
See also: Radeon 760M – integrated graphics of AMD Ryzen 5 8640U
Memory Support
| Memory Types | - DDR5-5600 - LPDDR5x-7500 |
| Max. Memory Size | 256 GB |
| Memory Channels | 2 |
| ECC Support | No |
Misc
| Official Site | AMD Ryzen 5 8640U official page |
| PCI Express Version | 4.0 |
| PCI Express Lanes | 20 |
| Technologies | - Compute: AVX-512, BMI1, BMI2, F16C, SHA, XDNA2
- Performance: Precision Boost 2, SMT
- Virtualization: AMD-V
- Security: EVP, NX-Bit, SMAP, SMEP |