i5-8400B vs Celeron N2840
Primary details
Comparing Celeron N2840 and Core i5-8400B processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3027 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | Intel Core i5 |
| Power efficiency | 5.00 | no data |
| Architecture codename | Bay Trail-M (2013−2014) | Coffee Lake (2017−2019) |
| Release date | 22 May 2014 (10 years ago) | 2 April 2018 (6 years ago) |
| Launch price (MSRP) | no data | $182 |
Detailed specifications
Celeron N2840 and Core i5-8400B 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) | 6 (Hexa-Core) |
| Threads | 2 | 6 |
| Base clock speed | 2.16 GHz | 2.8 GHz |
| Boost clock speed | 2.58 GHz | 4 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | no data | 4 × 8 GT/s |
| Multiplier | no data | 28 |
| L1 cache | 56K (per core) | 384 KB |
| L2 cache | 512K (per core) | 1.5 MB |
| L3 cache | 0 KB | 9 MB |
| Chip lithography | 22 nm | 14 nm |
| Die size | no data | 126 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Celeron N2840 and Core i5-8400B 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 | FCBGA1440 |
| Power consumption (TDP) | 7.5 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron N2840 and Core i5-8400B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | - |
| Idle States | + | + |
| Thermal Monitoring | - | + |
| Smart Connect | + | no data |
Security technologies
Celeron N2840 and Core i5-8400B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
| Secure Key | + | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron N2840 and Core i5-8400B are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Core i5-8400B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4-2666 |
| Maximum memory size | 8 GB | 64 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21.32 GB/s | 42.671 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics for Intel Atom Processor Z3700 Series | Intel UHD Graphics 630 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | + | + |
| Clear Video | no data | + |
| Clear Video HD | - | + |
| Graphics max frequency | 792 MHz | 1.05 GHz |
| InTru 3D | - | + |
Graphics interfaces
Available interfaces and connections of Celeron N2840 and Core i5-8400B integrated GPUs.
| Number of displays supported | 2 | 3 |
Graphics image quality
Maximum display resolutions supported by Celeron N2840 and Core i5-8400B integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@30Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by Celeron N2840 and Core i5-8400B integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Celeron N2840 and Core i5-8400B.
| PCIe version | 2.0 | 3.0 |
| 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 |
Pros & cons summary
| Integrated graphics card | 0.77 | 3.09 |
| Recency | 22 May 2014 | 2 April 2018 |
| Physical cores | 2 | 6 |
| Threads | 2 | 6 |
| Chip lithography | 22 nm | 14 nm |
| Power consumption (TDP) | 7 Watt | 65 Watt |
Celeron N2840 has 828.6% lower power consumption.
i5-8400B, on the other hand, has 301.3% faster integrated GPU, an age advantage of 3 years, 200% more physical cores and 200% more threads, and a 57.1% more advanced lithography process.
We couldn't decide between Celeron N2840 and Core i5-8400B. We've got no test results to judge.
Should you still have questions on choice between Celeron N2840 and Core i5-8400B, ask them in Comments section, and we shall answer.
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