Ryzen 5 8640U vs Celeron U3405
Primary details
Comparing Celeron U3405 and Ryzen 5 8640U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 565 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | no data |
| Power efficiency | no data | 44.60 |
| Architecture codename | Westmere (2010−2011) | Hawk Point-U (Zen 4) (2023) |
| Release date | no data (2024 years ago) | 6 December 2023 (less than a year ago) |
Detailed specifications
Celeron U3405 and Ryzen 5 8640U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 6 (Hexa-Core) |
| Threads | 2 | 12 |
| Base clock speed | 1.06 GHz | 3.5 GHz |
| Boost clock speed | 0.07 GHz | 4.9 GHz |
| Bus type | DMI 1.0 | no data |
| Bus rate | 1 × 2.5 GT/s | no data |
| Multiplier | 8 | no data |
| L1 cache | 128 KB | 64 KB (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | 2 MB | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 81 mm2 | 178 mm2 |
| Maximum core temperature | 90 °C | 100 °C |
| Number of transistors | 382 Million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Celeron U3405 and Ryzen 5 8640U compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 (Uniprocessor) | 1 |
| Socket | BGA1288 | FP8 |
| Power consumption (TDP) | 18 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron U3405 and Ryzen 5 8640U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3 |
| AES-NI | - | + |
| FMA | + | - |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| PAE | 36 Bit | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Celeron U3405 and Ryzen 5 8640U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron U3405 and Ryzen 5 8640U are enumerated here.
| AMD-V | - | + |
| VT-d | - | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron U3405 and Ryzen 5 8640U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-800, DDR3-1066 | DDR5 |
| Maximum memory size | 8 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 17.051 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for Previous Generation Intel® Processors | AMD Radeon 760M |
| Clear Video | + | no data |
| Graphics max frequency | 500 MHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron U3405 and Ryzen 5 8640U integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron U3405 and Ryzen 5 8640U.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | 16 | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Physical cores | 2 | 6 |
| Threads | 2 | 12 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 18 Watt | 28 Watt |
Celeron U3405 has 55.6% lower power consumption.
Ryzen 5 8640U, on the other hand, has 200% more physical cores and 500% more threads, and a 700% more advanced lithography process.
We couldn't decide between Celeron U3405 and Ryzen 5 8640U. We've got no test results to judge.
Should you still have questions on choice between Celeron U3405 and Ryzen 5 8640U, ask them in Comments section, and we shall answer.
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