A8-4557M vs Phenom II X2 B55
Primary details
Comparing Phenom II X2 B55 and A8-4557M processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2655 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.02 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | AMD A-Series |
| Power efficiency | 0.88 | no data |
| Architecture codename | Callisto (2009−2010) | Trinity (2012−2013) |
| Release date | 1 October 2009 (15 years ago) | 15 May 2012 (12 years ago) |
| Launch price (MSRP) | $48 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X2 B55 and A8-4557M 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) | 4 (Quad-Core) |
| Threads | 2 | 4 |
| Base clock speed | 3 GHz | 1.9 GHz |
| Boost clock speed | 3 GHz | 2.8 GHz |
| L1 cache | 128 KB (per core) | no data |
| L2 cache | 512 KB (per core) | 4 MB |
| L3 cache | 6 MB (shared) | no data |
| Chip lithography | 45 nm | 32 nm |
| Die size | 258 mm2 | 246 mm2 |
| Number of transistors | 758 million | 1303 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X2 B55 and A8-4557M 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 | AM3 | BGA |
| Power consumption (TDP) | 80 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X2 B55 and A8-4557M. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X2 B55 and A8-4557M are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X2 B55 and A8-4557M. 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 | On certain motherboards (Chipset feature) | AMD Radeon HD 7640G |
Peripherals
Specifications and connection of peripherals supported by Phenom II X2 B55 and A8-4557M.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 1 October 2009 | 15 May 2012 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 80 Watt | 35 Watt |
A8-4557M has an age advantage of 2 years, 100% more physical cores and 100% more threads, a 40.6% more advanced lithography process, and 128.6% lower power consumption.
We couldn't decide between Phenom II X2 B55 and A8-4557M. We've got no test results to judge.
Note that Phenom II X2 B55 is a desktop processor while A8-4557M is a notebook one.
Should you still have questions on choice between Phenom II X2 B55 and A8-4557M, ask them in Comments section, and we shall answer.
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