Ryzen 5 8640U vs Sempron 3400+
Primary details
Comparing Sempron 3400+ 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 | Palermo (2001−2005) | Hawk Point-U (Zen 4) (2023) |
| Release date | 1 October 2005 (19 years ago) | 6 December 2023 (less than a year ago) |
| Launch price (MSRP) | $30 | no data |
Detailed specifications
Sempron 3400+ 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 | 1 (Single-Core) | 6 (Hexa-Core) |
| Threads | 1 | 12 |
| Base clock speed | no data | 3.5 GHz |
| Boost clock speed | 2 GHz | 4.9 GHz |
| L1 cache | 128 KB | 64 KB (per core) |
| L2 cache | 128 KB | 1 MB (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 90 nm | 4 nm |
| Die size | 103 mm2 | 178 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 63 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Sempron 3400+ 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 | 939 | FP8 |
| Power consumption (TDP) | 62 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Sempron 3400+ 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 | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Sempron 3400+ and Ryzen 5 8640U are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 3400+ and Ryzen 5 8640U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon 760M |
Peripherals
Specifications and connection of peripherals supported by Sempron 3400+ and Ryzen 5 8640U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 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
| Recency | 1 October 2005 | 6 December 2023 |
| Physical cores | 1 | 6 |
| Threads | 1 | 12 |
| Chip lithography | 90 nm | 4 nm |
| Power consumption (TDP) | 62 Watt | 28 Watt |
Ryzen 5 8640U has an age advantage of 18 years, 500% more physical cores and 1100% more threads, a 2150% more advanced lithography process, and 121.4% lower power consumption.
We couldn't decide between Sempron 3400+ and Ryzen 5 8640U. We've got no test results to judge.
Note that Sempron 3400+ is a desktop processor while Ryzen 5 8640U is a notebook one.
Should you still have questions on choice between Sempron 3400+ and Ryzen 5 8640U, ask them in Comments section, and we shall answer.
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