Processor N100 vs Athlon II X4 645
Aggregate performance score
Processor N100 outperforms Athlon II X4 645 by an impressive 59% based on our aggregate benchmark results.
Primary details
Comparing Athlon II X4 645 and Processor N100 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2155 | 1788 |
| Place by popularity | not in top-100 | 65 |
| Cost-effectiveness evaluation | 3.30 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Alder Lake-N |
| Power efficiency | 1.47 | 37.07 |
| Architecture codename | Propus (2009−2011) | Alder Lake-N (2023) |
| Release date | 21 September 2010 (14 years ago) | 3 January 2023 (1 year ago) |
| Launch price (MSRP) | $80 | $128 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon II X4 645 and Processor N100 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) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 3.1 GHz | 0.1 GHz |
| Boost clock speed | 3.1 GHz | 3.4 GHz |
| L1 cache | 128 KB (per core) | 96 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (shared) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 45 nm | 10 nm |
| Die size | 169 mm2 | no data |
| Maximum core temperature | no data | 105 °C |
| Number of transistors | 300 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Athlon II X4 645 and Processor N100 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 | Intel BGA 1264 |
| Power consumption (TDP) | 95 Watt | 6 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 645 and Processor N100. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
Security technologies
Athlon II X4 645 and Processor N100 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 645 and Processor N100 are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 645 and Processor N100. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4, DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 24EUs (Alder Lake-N) |
Peripherals
Specifications and connection of peripherals supported by Athlon II X4 645 and Processor N100.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | no data | 9 |
Pros & cons summary
| Performance score | 1.48 | 2.35 |
| Recency | 21 September 2010 | 3 January 2023 |
| Chip lithography | 45 nm | 10 nm |
| Power consumption (TDP) | 95 Watt | 6 Watt |
Processor N100 has a 58.8% higher aggregate performance score, an age advantage of 12 years, a 350% more advanced lithography process, and 1483.3% lower power consumption.
The Processor N100 is our recommended choice as it beats the Athlon II X4 645 in performance tests.
Note that Athlon II X4 645 is a desktop processor while Processor N100 is a notebook one.
Should you still have questions on choice between Athlon II X4 645 and Processor N100, ask them in Comments section, and we shall answer.
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