Ryzen 5 8640U vs Athlon X4 940
Primary details
Comparing Athlon X4 940 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 | Desktop processor | Laptop |
| Power efficiency | no data | 44.61 |
| Architecture codename | Bristol Ridge (2016−2019) | Hawk Point-U (Zen 4) (2023) |
| Release date | 27 July 2017 (7 years ago) | 6 December 2023 (less than a year ago) |
Detailed specifications
Athlon X4 940 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 | 4 (Quad-Core) | 6 (Hexa-Core) |
| Threads | 4 | 12 |
| Base clock speed | 3.2 GHz | 3.5 GHz |
| Boost clock speed | 3.6 GHz | 4.9 GHz |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 28 nm | 4 nm |
| Die size | 246 mm2 | 178 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 74 °C | no data |
| Number of transistors | 1,178 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Athlon X4 940 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 | 1 |
| Socket | AM4 | FP8 |
| Power consumption (TDP) | 65 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X4 940 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 | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon X4 940 and Ryzen 5 8640U are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X4 940 and Ryzen 5 8640U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Dual-channel | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 760M |
Peripherals
Specifications and connection of peripherals supported by Athlon X4 940 and Ryzen 5 8640U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 27 July 2017 | 6 December 2023 |
| Physical cores | 4 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 28 nm | 4 nm |
| Power consumption (TDP) | 65 Watt | 28 Watt |
Ryzen 5 8640U has an age advantage of 6 years, 50% more physical cores and 200% more threads, a 600% more advanced lithography process, and 132.1% lower power consumption.
We couldn't decide between Athlon X4 940 and Ryzen 5 8640U. We've got no test results to judge.
Note that Athlon X4 940 is a desktop processor while Ryzen 5 8640U is a notebook one.
Should you still have questions on choice between Athlon X4 940 and Ryzen 5 8640U, ask them in Comments section, and we shall answer.
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