Celeron 3865U vs Atom Z2580
Primary details
Comparing Atom Z2580 and Celeron 3865U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 2511 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | no data | Intel Celeron |
| Architecture codename | Clovertrail (2013) | Kaby Lake (2016−2019) |
| Release date | 27 February 2013 (11 years ago) | 3 January 2017 (7 years ago) |
| Launch price (MSRP) | no data | $107 |
Detailed specifications
Atom Z2580 and Celeron 3865U 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 | 4 | 2 |
| Boost clock speed | 2 GHz | 1.8 GHz |
| Bus support | no data | 4 GT/s |
| L1 cache | 64K (per core) | 128 KB |
| L2 cache | 512K (per core) | 512 KB |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 32 nm | 14 nm |
| Die size | 65 mm2 | 98.7 mm2 |
| Maximum core temperature | 90 °C | 100 °C |
| Number of transistors | 140 million | no data |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Atom Z2580 and Celeron 3865U 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 | Intel BGA 617 | BGA |
| Power consumption (TDP) | 3 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z2580 and Celeron 3865U. You'll probably need this information if you require some particular technology.
| AES-NI | no data | + |
| AVX | no data | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom Z2580 and Celeron 3865U are enumerated here.
| AMD-V | no data | + |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z2580 and Celeron 3865U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3, DDR4 |
| Maximum memory size | no data | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | 8.5 GB/s | 34.134 GB/s |
| ECC memory support | no data | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | PowerVR SGX544MP2 (400 MHz) | Intel HD Graphics 610 |
Peripherals
Specifications and connection of peripherals supported by Atom Z2580 and Celeron 3865U.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Geekbench 3 32-bit multi-core
Geekbench 3 32-bit single-core
Geekbench 2
Pros & cons summary
| Recency | 27 February 2013 | 3 January 2017 |
| Threads | 4 | 2 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 3 Watt | 15 Watt |
Atom Z2580 has 100% more threads, and 400% lower power consumption.
Celeron 3865U, on the other hand, has an age advantage of 3 years, and a 128.6% more advanced lithography process.
We couldn't decide between Atom Z2580 and Celeron 3865U. We've got no test results to judge.
Should you still have questions on choice between Atom Z2580 and Celeron 3865U, ask them in Comments section, and we shall answer.
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