Ryzen Embedded 7645 vs A6-6400B
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2747 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 0.58 | no data |
| Designer | AMD | AMD |
| Manufacturer | GlobalFoundries | TSMC |
| Architecture codename | Richland (2013−2014) | Raphael (2023−2025) |
| Release date | 1 June 2013 (12 years ago) | 14 November 2023 (2 years ago) |
Detailed specifications
A6-6400B and Ryzen Embedded 7645 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 | 3.9 GHz | 3.8 GHz |
| Boost clock speed | 4.1 GHz | 5.1 GHz |
| L1 cache | 96K | 64 KB (per core) |
| L2 cache | 1 MB (shared) | 1 MB (per core) |
| L3 cache | no data | 32 MB (shared) |
| Chip lithography | 32 nm | 5 nm |
| Die size | 246 mm2 | 71 mm2 |
| Maximum case temperature (TCase) | 70 °C | no data |
| Number of transistors | 1,303 million | 6,570 million |
| 64 bit support | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on A6-6400B and Ryzen Embedded 7645 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 | FM2 | AM5 |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-6400B and Ryzen Embedded 7645. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| PowerNow | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-6400B and Ryzen Embedded 7645 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-6400B and Ryzen Embedded 7645. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 8470D | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by A6-6400B and Ryzen Embedded 7645.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Integrated graphics card | 0.89 | 1.83 |
| Recency | 1 June 2013 | 14 November 2023 |
| Physical cores | 2 | 6 |
| Threads | 2 | 12 |
| Chip lithography | 32 nm | 5 nm |
Ryzen Embedded 7645 has 105.6% faster integrated GPU, an age advantage of 10 years, 200% more physical cores and 500% more threads, and a 540% more advanced lithography process.
We couldn't decide between AMD A6-6400B and AMD Ryzen Embedded 7645. We've got no test results to judge.
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