Athlon II M340 vs Celeron N2840
Aggregate performance score
Athlon II M340 outperforms Celeron N2840 by a substantial 38% based on our aggregate benchmark results.
Primary details
Comparing Celeron N2840 and Athlon II M340 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3027 | 2871 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | AMD Athlon II |
| Power efficiency | 5.00 | 1.38 |
| Architecture codename | Bay Trail-M (2013−2014) | Caspian (2009) |
| Release date | 22 May 2014 (10 years ago) | 10 September 2009 (15 years ago) |
Detailed specifications
Celeron N2840 and Athlon II M340 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 | 2.16 GHz | no data |
| Boost clock speed | 2.58 GHz | 2.2 GHz |
| Bus rate | no data | 3200 MHz |
| L1 cache | 56K (per core) | 128 KB |
| L2 cache | 512K (per core) | 1 MB |
| L3 cache | 0 KB | no data |
| Chip lithography | 22 nm | 45 nm |
| Maximum core temperature | 100 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron N2840 and Athlon II M340 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 | FCBGA1170 | Socket S1 (S1g3) |
| Power consumption (TDP) | 7.5 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron N2840 and Athlon II M340. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization |
| PowerNow | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Smart Connect | + | no data |
Security technologies
Celeron N2840 and Athlon II M340 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
| Secure Key | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron N2840 and Athlon II M340 are enumerated here.
| VT-d | - | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Athlon II M340. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR2 |
| Maximum memory size | 8 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21.32 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics for Intel Atom Processor Z3700 Series | no data |
| Quick Sync Video | + | - |
| Graphics max frequency | 792 MHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron N2840 and Athlon II M340 integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron N2840 and Athlon II M340.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 4 | no data |
| USB revision | 3.0 and 2.0 | no data |
| Total number of SATA ports | 2 | no data |
| Number of USB ports | 5 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 0.37 | 0.51 |
| Recency | 22 May 2014 | 10 September 2009 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 7 Watt | 35 Watt |
Celeron N2840 has an age advantage of 4 years, a 104.5% more advanced lithography process, and 400% lower power consumption.
Athlon II M340, on the other hand, has a 37.8% higher aggregate performance score.
The Athlon II M340 is our recommended choice as it beats the Celeron N2840 in performance tests.
Should you still have questions on choice between Celeron N2840 and Athlon II M340, ask them in Comments section, and we shall answer.
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