Celeron N2840 vs A4 Micro-6400T
Aggregate performance score
A4 Micro-6400T outperforms Celeron N2840 by an impressive 84% based on our aggregate benchmark results.
Primary details
Comparing A4 Micro-6400T and Celeron N2840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2735 | 3039 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD A-Series | Intel Celeron |
| Power efficiency | 14.23 | 4.98 |
| Architecture codename | Mullins (2014) | Bay Trail-M (2013−2014) |
| Release date | 29 April 2014 (10 years ago) | 22 May 2014 (10 years ago) |
Detailed specifications
A4 Micro-6400T and Celeron N2840 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 1 GHz | 2.16 GHz |
| Boost clock speed | 1.6 GHz | 2.58 GHz |
| L1 cache | no data | 56K (per core) |
| L2 cache | 2048 KB | 512K (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 28 nm | 22 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on A4 Micro-6400T and Celeron N2840 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 | FT3b | FCBGA1170 |
| Power consumption (TDP) | 4.5 Watt | 7.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A4 Micro-6400T and Celeron N2840. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX | no data |
| AES-NI | + | - |
| FMA | FMA4 | - |
| AVX | + | - |
| PowerNow | + | - |
| PowerGating | + | - |
| VirusProtect | + | - |
| 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
A4 Micro-6400T and Celeron N2840 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 A4 Micro-6400T and Celeron N2840 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | - |
| VT-x | no data | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A4 Micro-6400T and Celeron N2840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1333 | DDR3 |
| Maximum memory size | no data | 8 GB |
| Max memory channels | 1 | 2 |
| Maximum memory bandwidth | no data | 21.32 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon R3 Graphics | Intel HD Graphics for Intel Atom Processor Z3700 Series |
| Quick Sync Video | - | + |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
| Graphics max frequency | no data | 792 MHz |
Graphics interfaces
Available interfaces and connections of A4 Micro-6400T and Celeron N2840 integrated GPUs.
| Number of displays supported | no data | 2 |
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A4 Micro-6400T and Celeron N2840 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 12 | no data |
| Vulkan | + | - |
Peripherals
Specifications and connection of peripherals supported by A4 Micro-6400T and Celeron N2840.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | no data | 4 |
| USB revision | no data | 3.0 and 2.0 |
| Total number of SATA ports | no data | 2 |
| Number of USB ports | no data | 5 |
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.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Cinebench 11.5 64-bit single-core
Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.
Geekbench 3 32-bit multi-core
Geekbench 3 32-bit single-core
Pros & cons summary
| Performance score | 0.68 | 0.37 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 28 nm | 22 nm |
| Power consumption (TDP) | 4 Watt | 7 Watt |
A4 Micro-6400T has a 83.8% higher aggregate performance score, 100% more physical cores and 100% more threads, and 75% lower power consumption.
Celeron N2840, on the other hand, has a 27.3% more advanced lithography process.
The A4 Micro-6400T is our recommended choice as it beats the Celeron N2840 in performance tests.
Should you still have questions on choice between A4 Micro-6400T and Celeron N2840, ask them in Comments section, and we shall answer.
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