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Intel Atom Z3770

Intel Z3770

The Intel Atom Z3770 is a power efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.46 - 2.4 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 a clock speed of 1.46 - 2.4 GHz, the Z3770 is significantly faster than previous Intel Atoms, e.g. the Z2760. In our benchmarks, the Z3770 even slightly beats the Kabini APU AMD A4-5000, as well as ARM SoCs like Tegra 4 and the Snapdragon 800. 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) and comparable to the Qualcomm Adreno 320 (as found in the Snapdragon 600). Therefore, only older and less demanding Windows games 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.

SeriesIntel Atom
CodenameBay Trail-T

Series: Atom Bay Trail-T

Intel Atom Z3795 compare1.59 - 2.39 GHz4 / 4 cores
Intel Atom Z3785 compare1.49 - 2.41 GHz4 / 4 cores
Intel Atom Z3775 compare1.46 - 2.39 GHz4 / 4 cores
Intel Atom Z3775D compare1.49 - 2.41 GHz4 / 4 cores
Intel Atom Z3770 « 1.46 - 2.4 GHz4 / 4 cores
Intel Atom Z3770D compare1.5 - 2.41 GHz4 / 4 cores
Intel Atom Z3736F compare1.33 - 2.16 GHz4 / 4 cores
Intel Atom Z3736G compare1.33 - 2.16 GHz4 / 4 cores
Intel Atom Z3745 compare1.33 - 1.86 GHz4 / 4 cores
Intel Atom Z3745D compare1.33 - 1.83 GHz4 / 4 cores
Intel Atom Z3740 compare1.33 - 1.86 GHz4 / 4 cores
Intel Atom Z3740D compare1.33 - 1.83 GHz4 / 4 cores
Intel Atom Z3735D compare1.33 - 1.83 GHz4 / 4 cores
Intel Atom Z3735E compare1.33 - 1.83 GHz4 / 4 cores
Intel Atom Z3735F compare1.33 - 1.83 GHz4 / 4 cores
Intel Atom Z3735G compare1.33 - 1.83 GHz4 / 4 cores
Intel Atom Z3680 compare1.33 - 2 GHz2 / 2 cores
Intel Atom Z3680D compare1.33 - 2 GHz2 / 2 cores
Clock Rate1460 - 2400 MHz
Level 1 Cache224 KB
Level 2 Cache2 MB
Number of Cores / Threads4 / 4
Power Consumption (TDP = Thermal Design Power)<4 Watt
Manufacturing Technology22 nm
SocketUTFCBGA1380
FeaturesIntel 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
GPUIntel HD Graphics (Bay Trail) (311 - 667 MHz)
64 Bit64 Bit support
Architecturex86
Starting Price$37 U.S.
Announcement Date09/11/2013
Product Link (external)ark.intel.com

Benchmarks

X264 HD Benchmark 4.0 - x264 Pass 1
min: 31.5     avg: 39.3     median: 40.5 (9%)     max: 45.9 fps
TrueCrypt - TrueCrypt AES
min: 0.44     avg: 0.8     median: 0.9 (2%)     max: 0.886 GB/s
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 27     avg: 33.3     median: 36 (8%)     max: 37 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 1566     avg: 1686     median: 1735 (8%)     max: 1756 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 15.66     avg: 7984     median: 7984.3 (4%)     max: 15953 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 7.38     avg: 3731     median: 3730.7 (3%)     max: 7454 MFLOPS
3DMark 11 - 3DM11 Performance Physics
min: 1199     avg: 1353     median: 1330 (4%)     max: 1512 Points
3DMark - 3DMark Ice Storm Physics
min: 11561     avg: 16054     median: 17754 (14%)     max: 18706 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 17931     avg: 18729     median: 18754 (15%)     max: 19503 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 1348     avg: 1748     median: 1748 (3%)     max: 2148 Points
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
min: 2998     avg: 3035     median: 3035 (5%)     max: 3072 points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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