Ryzen 5 PRO 7640U vs A8-3870K
Aggregate performance score
Ryzen 5 PRO 7640U outperforms A8-3870K by a whopping 804% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2389 | 683 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | 0.57 | 34.12 |
| Designer | AMD | AMD |
| Architecture codename | Llano (2011−2012) | Phoenix (Zen4) (2023) |
| Release date | 20 December 2011 (13 years ago) | 23 May 2023 (2 years ago) |
Detailed specifications
A8-3870K and Ryzen 5 PRO 7640U 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 GHz | 3.5 GHz |
| Boost clock speed | 3 GHz | 4.9 GHz |
| L1 cache | 128 KB (per core) | 384 KB |
| L2 cache | 1 MB (per core) | 6 MB |
| L3 cache | 0 KB | 16 MB |
| Chip lithography | 32 nm | 4 nm |
| Die size | 228 mm2 | 178 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 1,178 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on A8-3870K and Ryzen 5 PRO 7640U 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 | no data |
| Socket | FM1 | no data |
| Power consumption (TDP) | 100 Watt | 15 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by A8-3870K and Ryzen 5 PRO 7640U are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-3870K and Ryzen 5 PRO 7640U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 6550D | AMD Radeon 760M ( - 2600 MHz) |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 1.34 | 12.12 |
| Integrated graphics card | 0.90 | 12.48 |
| Recency | 20 December 2011 | 23 May 2023 |
| Physical cores | 4 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 100 Watt | 15 Watt |
Ryzen 5 PRO 7640U has a 804.5% higher aggregate performance score, 1286.7% faster integrated GPU, an age advantage of 11 years, 50% more physical cores and 200% more threads, a 700% more advanced lithography process, and 566.7% lower power consumption.
The AMD Ryzen 5 PRO 7640U is our recommended choice as it beats the AMD A8-3870K in performance tests.
Note that A8-3870K is a desktop processor while Ryzen 5 PRO 7640U is a notebook one.
Other comparisons
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