A4-4000 vs Phenom II X2 555 BE
Primary details
Comparing Phenom II X2 555 BE and A4-4000 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 2577 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 3.94 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Callisto (2009−2010) | Richland (2013−2014) |
| Release date | 25 January 2010 (14 years ago) | 1 June 2013 (11 years ago) |
| Current price | $60 | $35 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X2 555 BE and A4-4000 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) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | 3.2 GHz | 3 GHz |
| Boost clock speed | 3.2 GHz | 3.2 GHz |
| L1 cache | 128 KB (per core) | 128 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 6 MB (shared) | 0 KB |
| Chip lithography | 45 nm | 32 nm |
| Die size | 258 mm2 | 246 mm2 |
| Maximum case temperature (TCase) | no data | 70 °C |
| Number of transistors | 758 million | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | Yes | No |
Compatibility
Information on Phenom II X2 555 BE and A4-4000 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 | AM3 | FM2 |
| Power consumption (TDP) | 80 Watt | 65 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X2 555 BE and A4-4000 are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X2 555 BE and A4-4000. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon HD 7480D |
Peripherals
Specifications and connection of peripherals supported by Phenom II X2 555 BE and A4-4000.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 25 January 2010 | 1 June 2013 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 80 Watt | 65 Watt |
We couldn't decide between Phenom II X2 555 BE and A4-4000. We've got no test results to judge.
Should you still have questions on choice between Phenom II X2 555 BE and A4-4000, ask them in Comments section, and we shall answer.
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