Celeron U3400 vs N2840
Primary details
Comparing Celeron N2840 and Celeron U3400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | Intel Celeron |
| Architecture codename | Bay Trail-M (2013−2014) | Westmere (2010−2011) |
| Release date | 22 May 2014 (10 years ago) | 24 May 2010 (14 years ago) |
Detailed specifications
Celeron N2840 and Celeron U3400 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 | 1.06 GHz |
| Boost clock speed | 2.58 GHz | 0.07 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | no data | 1 × 2.5 GT/s |
| Multiplier | no data | 8 |
| L1 cache | 56K (per core) | 128 KB |
| L2 cache | 512K (per core) | 512 KB |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 22 nm | 32 nm |
| Die size | no data | 81 mm2 |
| Maximum core temperature | 100 °C | 105 °C |
| Number of transistors | no data | 382 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron N2840 and Celeron U3400 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 (Uniprocessor) |
| Socket | FCBGA1170 | BGA1288 |
| Power consumption (TDP) | 7.5 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron N2840 and Celeron U3400. You'll probably need this information if you require some particular technology.
| FMA | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | + | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| PAE | no data | 36 Bit |
| Smart Connect | + | no data |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Celeron N2840 and Celeron U3400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
| Secure Key | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron N2840 and Celeron U3400 are enumerated here.
| VT-d | - | - |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Celeron U3400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3-800 |
| Maximum memory size | 8 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21.32 GB/s | 12.799 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for Intel Atom® Processor Z3700 Series | Intel® HD Graphics for Previous Generation Intel® Processors |
| Quick Sync Video | + | - |
| Clear Video | no data | + |
| Graphics max frequency | 792 MHz | 500 MHz |
Graphics interfaces
Available interfaces and connections of Celeron N2840 and Celeron U3400 integrated GPUs.
| Number of displays supported | 2 | 2 |
Peripherals
Specifications and connection of peripherals supported by Celeron N2840 and Celeron U3400.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 4 | 16 |
| 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.
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Recency | 22 May 2014 | 24 May 2010 |
| Chip lithography | 22 nm | 32 nm |
| Power consumption (TDP) | 7 Watt | 18 Watt |
Celeron N2840 has an age advantage of 3 years, a 45.5% more advanced lithography process, and 157.1% lower power consumption.
We couldn't decide between Celeron N2840 and Celeron U3400. We've got no test results to judge.
Should you still have questions on choice between Celeron N2840 and Celeron U3400, ask them in Comments section, and we shall answer.
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