Atom Z3740 vs i5-5257U
Aggregate performance score
Core i5-5257U outperforms Atom Z3740 by a whopping 354% based on our aggregate benchmark results.
Primary details
Comparing Core i5-5257U and Atom Z3740 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2030 | 3022 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i5 | no data |
| Power efficiency | 5.98 | 18.45 |
| Architecture codename | Broadwell-U (2015) | Bay Trail-T (2013−2014) |
| Release date | 1 March 2015 (9 years ago) | 27 September 2013 (11 years ago) |
| Launch price (MSRP) | $315 | $32 |
Detailed specifications
Core i5-5257U and Atom Z3740 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) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 2.7 GHz | 1.33 GHz |
| Boost clock speed | 3.1 GHz | 1.86 GHz |
| Bus rate | 5 GT/s | no data |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 256K (per core) | 512K (per core) |
| L3 cache | 3 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 22 nm |
| Die size | 133 mm2 | no data |
| Maximum core temperature | 105 °C | 90 °C |
| Maximum case temperature (TCase) | 105 °C | no data |
| Number of transistors | 1900 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core i5-5257U and Atom Z3740 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 | FCBGA1168 | UTFCBGA1380 |
| Power consumption (TDP) | 28 Watt | 2 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-5257U and Atom Z3740. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Smart Response | + | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Core i5-5257U and Atom Z3740 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Secure Key | + | + |
| Identity Protection | + | + |
| OS Guard | + | no data |
| Anti-Theft | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-5257U and Atom Z3740 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 Core i5-5257U and Atom Z3740. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 16 GB | 4 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 25.6 GB/s | 17.1 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel Iris Graphics 6100 | Intel HD Graphics for Intel Atom Processor Z3700 Series |
| Max video memory | 16 GB | no data |
| Quick Sync Video | + | + |
| Clear Video | + | no data |
| Clear Video HD | + | + |
| Graphics max frequency | 1.05 GHz | 667 MHz |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i5-5257U and Atom Z3740 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
Graphics image quality
Maximum display resolutions supported by Core i5-5257U and Atom Z3740 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 2560X1600@60Hz | no data |
| Max resolution over DisplayPort | 3840x2160@60Hz | no data |
Graphics API support
APIs supported by Core i5-5257U and Atom Z3740 integrated GPUs, sometimes API versions are included.
| DirectX | 11.2/12 | no data |
| OpenGL | 4.3 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-5257U and Atom Z3740.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 12 | 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.
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.
TrueCrypt AES
TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.
WinRAR 4.0
WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.
Geekbench 3 32-bit multi-core
Geekbench 3 32-bit single-core
Geekbench 2
Pros & cons summary
| Performance score | 1.77 | 0.39 |
| Integrated graphics card | 2.33 | 0.77 |
| Recency | 1 March 2015 | 27 September 2013 |
| Physical cores | 2 | 4 |
| Chip lithography | 14 nm | 22 nm |
| Power consumption (TDP) | 28 Watt | 2 Watt |
i5-5257U has a 353.8% higher aggregate performance score, 202.6% faster integrated GPU, an age advantage of 1 year, and a 57.1% more advanced lithography process.
Atom Z3740, on the other hand, has 100% more physical cores, and 1300% lower power consumption.
The Core i5-5257U is our recommended choice as it beats the Atom Z3740 in performance tests.
Should you still have questions on choice between Core i5-5257U and Atom Z3740, ask them in Comments section, and we shall answer.
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