Atom Z515 vs Celeron N2805
Aggregate performance score
Celeron N2805 outperforms Atom Z515 by an impressive 50% based on our aggregate benchmark results.
Primary details
Comparing Celeron N2805 and Atom Z515 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3206 | 3321 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | Intel Atom |
| Power efficiency | 4.97 | 20.38 |
| Architecture codename | Bay Trail-M (2013−2014) | Silverthorne (2008−2010) |
| Release date | 11 September 2013 (11 years ago) | 8 April 2009 (15 years ago) |
| Launch price (MSRP) | $107 | no data |
Detailed specifications
Celeron N2805 and Atom Z515 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) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Base clock speed | 1.46 GHz | 1.2 GHz |
| Boost clock speed | 1.46 GHz | 1.2 GHz |
| Bus type | no data | FSB |
| Bus rate | no data | 400 MT/s |
| Multiplier | no data | 12 |
| L1 cache | 56K (per core) | 56 KB (per core) |
| L2 cache | 512K (per core) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 22 nm | 45 nm |
| Die size | no data | 26 mm2 |
| Maximum core temperature | 80 °C | 90 °C |
| Number of transistors | no data | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron N2805 and Atom Z515 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 | PBGA441 |
| Power consumption (TDP) | 4.3 Watt | 1.4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron N2805 and Atom Z515. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| Smart Connect | + | no data |
| FSB parity | no data | - |
| RST | - | no data |
Security technologies
Celeron N2805 and Atom Z515 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron N2805 and Atom Z515 are enumerated here.
| VT-d | - | - |
| VT-x | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron N2805 and Atom Z515. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | unknown |
| Maximum memory size | 4 GB | no data |
| Max memory channels | 1 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics for Intel Atom Processor Z3700 Series | On certain motherboards (Chipset feature) |
| Graphics max frequency | 667 MHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron N2805 and Atom Z515 integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron N2805 and Atom Z515.
| 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 | 0.21 | 0.14 |
| Recency | 11 September 2013 | 8 April 2009 |
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 4 Watt | 1 Watt |
Celeron N2805 has a 50% higher aggregate performance score, an age advantage of 4 years, 100% more physical cores and 100% more threads, and a 104.5% more advanced lithography process.
Atom Z515, on the other hand, has 300% lower power consumption.
The Celeron N2805 is our recommended choice as it beats the Atom Z515 in performance tests.
Should you still have questions on choice between Celeron N2805 and Atom Z515, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
