The Intel Atom Z3740 is a power efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.33 - 1.86 GHz and part of the Bay Trail-T platform. Thanks to the specially optimized 22 nanometer low-power process (P1271) with tri-gate transistors, performance and energy efficiency have been significantly improved compared to its predecessor.
Architecture
The processor cores are based on the new Silvermont architecture, which is an out-of-order design for the first time. The increased utilization of the pipeline and many other improvements (optimized branch prediction, increased buffers, enhanced decoders) have increased the performance per clock by about 50 percent. At the same time, however, the Hyper-Threading feature of the previous generation has been removed. Other major changes are the support for new instruction set extensions such as SSE 4.1 and 4.2 as well as AES-NI (depending on the model).
Performance
Thanks to 4 CPU cores and the improved performance per clock, the Z3740 is significantly faster than previous Intel Atoms, e.g. the Z2760. According to our benchmarks, the Z3740 competes with Temash and Kabini APUs like the AMD A6-1450 and A4-5000. For everyday tasks such as Internet or Office the performance is adequate, but not for very complex software or modern games.
Graphics
The HD Graphics (Bay Trail) is based on the Intel Gen7 architecture, which supports DirectX 11 and is also found in the Ivy Bridge series (e.g. HD Graphics 4000). With only 4 EUs (Execution Units) and a relatively low clock speed of up to 667 MHz, the GPU is even slower than the HD Graphics (Ivy Bridge). Therefore, only older and less demanding Windows games like World of Warcraft or Fifa will run fluently. However, video acceleration and display resolutions up to 2560 x 1600 pixels are no problem for the chip.
Power Consumption
The entire SoC is rated at an SDP of 2 watts, which indicates a TDP of less than 4 watts. Thus, the chip can be used in passively cooled tablets.
| Codename | Bay Trail-T | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series | Intel Atom | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Atom Bay Trail-T
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| Clock Rate | 1330 - 1860 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Level 1 Cache | 224 KB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Level 2 Cache | 2 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Number of Cores / Threads | 4 / 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Power Consumption (TDP = Thermal Design Power) | 4 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Manufacturing Technology | 22 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Socket | UTFCBGA1380 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Features | Intel HD Graphics (Bay Trail, 311 - 667 MHz), Quick Sync, Wireless Display, Clear Video HD, Intel 64, SSE 4.1, SSE 4.2, AES-NI, Secure Key, Anti-Theft, Identify-Protection, max. 4 GB Dual-Channel LPDDR3-1067 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| GPU | Intel HD Graphics (Bay Trail) (311 - 667 MHz) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 64 Bit | 64 Bit support | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Architecture | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Starting Price | $32 U.S. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Announcement Date | 09/11/2013 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Product Link (external) | ark.intel.com | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
- Average benchmark values
Acer Iconia W4-821: Intel HD Graphics (Bay Trail), 8.10", 0.4 kg
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Asus Transformer Book T100TA 64Gb Keyboard Dock: Intel HD Graphics (Bay Trail), 10.10", 1.1 kg
External Review » Asus Transformer Book T100TA 64Gb Keyboard Dock
Toshiba Encore WT8-A-103: Intel HD Graphics (Bay Trail), 8.00", 0.5 kg
External Review » Toshiba Encore WT8-A-103
Asus Transformer Book T100TA-DK007H: Intel HD Graphics (Bay Trail), 10.10", 1 kg
External Review » Asus Transformer Book T100TA-DK007H
Asus VivoTab Note 8: Intel HD Graphics (Bay Trail), 8.00", 0.4 kg
External Review » Asus VivoTab Note 8
Toshiba Encore WT8-A-102: Intel HD Graphics (Bay Trail), 8.00", 0.5 kg
External Review » Toshiba Encore WT8-A-102
Acer Iconia W4-820-2466: Intel HD Graphics (Bay Trail), 8.10", 0.4 kg
External Review » Acer Iconia W4-820-2466
Lenovo Miix 2 8: Intel HD Graphics (Bay Trail), 8.00", 0.3 kg
External Review » Lenovo Miix 2 8
Asus Transformer Book T100TA-DK003H: Intel Graphics Media Accelerator (GMA) 3650, 10.10", 1.1 kg
External Review » Asus Transformer Book T100TA-DK003H
Asus Transformer Book T100-DK002H: Intel HD Graphics (Ivy Bridge), 10.10", 1.1 kg
External Review » Asus Transformer Book T100-DK002H
Asus Transformer Book T100TA-C1-GR: Intel HD Graphics (Bay Trail), 10.10", 1.1 kg
External Review » Asus Transformer Book T100TA-C1-GR
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