Atom N455 vs Phenom II X2 555 BE
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 3618 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Power efficiency | no data | 0.67 |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Callisto (2009−2010) | Pinetrail (2009−2011) |
| Release date | 25 January 2010 (15 years ago) | 1 June 2010 (15 years ago) |
| Launch price (MSRP) | no data | $64 |
Detailed specifications
Phenom II X2 555 BE and Atom N455 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | 3.2 GHz | 1.66 GHz |
| Boost clock speed | 3.2 GHz | 1.67 GHz |
| Bus rate | no data | 533 MHz |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 512K (per core) |
| L3 cache | 6 MB (shared) | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 258 mm2 | 66 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 758 million | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Phenom II X2 555 BE and Atom N455 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 | FCBGA559 |
| Power consumption (TDP) | 80 Watt | 6.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X2 555 BE and Atom N455. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
Security technologies
Phenom II X2 555 BE and Atom N455 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X2 555 BE and Atom N455 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X2 555 BE and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | no data | 2 GB |
| Max memory channels | no data | 1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel GMA 3150 |
Peripherals
Specifications and connection of peripherals supported by Phenom II X2 555 BE and Atom N455.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 25 January 2010 | 1 June 2010 |
| Physical cores | 2 | 1 |
| Power consumption (TDP) | 80 Watt | 6 Watt |
Phenom II X2 555 BE has 100% more physical cores.
Atom N455, on the other hand, has an age advantage of 4 months, and 1233.3% lower power consumption.
We couldn't decide between AMD Phenom II X2 555 BE and Intel Atom N455. We've got no test results to judge.
Note that Phenom II X2 555 BE is a desktop processor while Atom N455 is a notebook one.
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