Athlon X4 940 vs Athlon II Neo K345
Primary details
Comparing Athlon II Neo K345 and Athlon X4 940 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3088 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Athlon II Neo | no data |
| Power efficiency | 2.60 | no data |
| Architecture codename | Champlain (2010−2011) | Bristol Ridge (2016−2019) |
| Release date | 18 December 2010 (14 years ago) | 27 July 2017 (7 years ago) |
Detailed specifications
Athlon II Neo K345 and Athlon X4 940 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 | no data | 3.2 GHz |
| Boost clock speed | 1.4 GHz | 3.6 GHz |
| Bus rate | 2000 MHz | no data |
| L1 cache | 256 KB | 128 KB (per core) |
| L2 cache | 1 MB | 512 KB (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 28 nm |
| Die size | no data | 246 mm2 |
| Maximum case temperature (TCase) | no data | 74 °C |
| Number of transistors | no data | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Athlon II Neo K345 and Athlon X4 940 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 | no data | 1 |
| Socket | S1 | AM4 |
| Power consumption (TDP) | 12 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II Neo K345 and Athlon X4 940. You'll probably need this information if you require some particular technology.
| Instruction set extensions | SSE4A, AMD64, Enhanced Virus Protection, Virtualization, PowerNow, HyperTransport 3.0 | no data |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| PowerNow | + | - |
| VirusProtect | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II Neo K345 and Athlon X4 940 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II Neo K345 and Athlon X4 940. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 Dual-channel |
Pros & cons summary
| Recency | 18 December 2010 | 27 July 2017 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 45 nm | 28 nm |
| Power consumption (TDP) | 12 Watt | 65 Watt |
Athlon II Neo K345 has 441.7% lower power consumption.
Athlon X4 940, on the other hand, has an age advantage of 6 years, 100% more physical cores and 100% more threads, and a 60.7% more advanced lithography process.
We couldn't decide between Athlon II Neo K345 and Athlon X4 940. We've got no test results to judge.
Be aware that Athlon II Neo K345 is a notebook processor while Athlon X4 940 is a desktop one.
Should you still have questions on choice between Athlon II Neo K345 and Athlon X4 940, ask them in Comments section, and we shall answer.
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