Pentium 3805U vs Atom Z2580
Aggregate performance score
Pentium 3805U outperforms Atom Z2580 by a whopping 196% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3426 | 2937 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.04 |
| Market segment | Laptop | Laptop |
| Series | no data | Intel Pentium |
| Power efficiency | 3.26 | 1.93 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Clovertrail (2013) | Broadwell-U (2015) |
| Release date | 27 February 2013 (12 years ago) | 1 March 2015 (10 years ago) |
| Launch price (MSRP) | no data | $161 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Atom Z2580 and Pentium 3805U 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 |
| Base clock speed | no data | 1.9 GHz |
| Boost clock speed | 2 GHz | 1.9 GHz |
| Bus rate | no data | 5 GT/s |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 512K (per core) | 256K (per core) |
| L3 cache | 0 KB | 2 MB (shared) |
| Chip lithography | 32 nm | 14 nm |
| Die size | 65 mm2 | 82 mm2 |
| Maximum core temperature | 90 °C | 105 °C |
| Maximum case temperature (TCase) | no data | 105 °C |
| Number of transistors | 140 million | 1300 Million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom Z2580 and Pentium 3805U 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 |
| Socket | FC-MB4760 | FCBGA1168 |
| Power consumption (TDP) | 3 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z2580 and Pentium 3805U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE2, Intel® SSE3, Intel® SSSE3 | Intel® SSE4.1, Intel® SSE4.2 |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| Smart Response | no data | - |
| PAE | 32 Bit | no data |
| FDI | no data | + |
| Fast Memory Access | no data | + |
| Smart Idle | + | no data |
Security technologies
Atom Z2580 and Pentium 3805U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Identity Protection | - | + |
| OS Guard | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom Z2580 and Pentium 3805U are enumerated here.
| AMD-V | - | + |
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z2580 and Pentium 3805U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| Maximum memory size | 2 GB | 16 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 8.5 GB/s | 25.6 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | PowerVR SGX544MP2 (400 MHz) | Intel HD Graphics for 5th Generation Intel Processors |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Graphics max frequency | 533 MHz | 800 MHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Atom Z2580 and Pentium 3805U integrated GPUs.
| Number of displays supported | 2 | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
Graphics API support
APIs supported by Atom Z2580 and Pentium 3805U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 11.2/12 |
Peripherals
Specifications and connection of peripherals supported by Atom Z2580 and Pentium 3805U.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 12 |
| USB revision | 2.0 OTG, USB-SPH 2.0 | no data |
| Number of USB ports | 2 | no data |
| UART | 3 | no data |
Pros & cons summary
| Performance score | 0.23 | 0.68 |
| Recency | 27 February 2013 | 1 March 2015 |
| 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.
Pentium 3805U, on the other hand, has a 195.7% higher aggregate performance score, an age advantage of 2 years, and a 128.6% more advanced lithography process.
The Intel Pentium 3805U is our recommended choice as it beats the Intel Atom Z2580 in performance tests.
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