Phenom II X2 X620 BE vs A8-3870K
Primary details
Comparing A8-3870K and Phenom II X2 X620 BE processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2175 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | 2x AMD Phenom II |
| Power efficiency | 1.39 | no data |
| Architecture codename | Llano (2011−2012) | Champlain (2010−2011) |
| Release date | 20 December 2011 (13 years ago) | 12 May 2010 (14 years ago) |
Detailed specifications
A8-3870K and Phenom II X2 X620 BE 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 3 GHz | no data |
| Boost clock speed | 3 GHz | 3.1 GHz |
| Bus rate | no data | 3600 MHz |
| L1 cache | 128 KB (per core) | no data |
| L2 cache | 1 MB (per core) | 2 MB |
| L3 cache | 0 KB | no data |
| Chip lithography | 32 nm | 45 nm |
| Die size | 228 mm2 | no data |
| Number of transistors | 1,178 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on A8-3870K and Phenom II X2 X620 BE 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 | S1 |
| Power consumption (TDP) | 100 Watt | 45 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by A8-3870K and Phenom II X2 X620 BE are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-3870K and Phenom II X2 X620 BE. 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 | no data |
Pros & cons summary
| Recency | 20 December 2011 | 12 May 2010 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 100 Watt | 45 Watt |
A8-3870K has an age advantage of 1 year, 100% more physical cores and 100% more threads, and a 40.6% more advanced lithography process.
Phenom II X2 X620 BE, on the other hand, has 122.2% lower power consumption.
We couldn't decide between A8-3870K and Phenom II X2 X620 BE. We've got no test results to judge.
Note that A8-3870K is a desktop processor while Phenom II X2 X620 BE is a notebook one.
Should you still have questions on choice between A8-3870K and Phenom II X2 X620 BE, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
