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Intel Atom Z3785 vs Intel Atom Z3770D

Intel Atom Z3785

► remove from comparison Intel Z3785

The Intel Atom Z3785 is a power efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.49 - 2.41 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.

Compared to the Z3775, the Z3785 offers slightly increased clock rates for the CPU, GPU and memory controller.

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 1.49 - 2.41 GHz, the Z3785 is significantly faster than previous Intel Atoms, e.g. the Z2760. The Z3785 even beats some of the Kabini APUs like the 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 (Windows) 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 833 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 2.2 watts, which indicates a TDP of less than 4 watts. Thus, the chip can be used in passively cooled tablets.

Intel Atom Z3770D

► remove from comparison Intel Z3770D

The Intel Atom Z3770D is a power-efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.5 - 2.4 GHz and is part of the Bay Trail-T platform. Thanks to the specially optimized 22nm low-power design process (P1271) with Tri-Gate transistors, performance and energy efficiency have been significantly improved compared to its predecessor. In contrast to the Z3770, the Z3770D only offers a single-channel memory controller and a lower display resolution.

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, and 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 additions are 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 up to 2.4 GHz, the Z3770D is significantly faster than previous Intel Atoms like the Z2760. The Z3770 even outperforms some of the Kabini APUs like the 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 688 MHz, the GPU is even slower than the HD Graphics (Ivy Bridge) and is 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 1920 x 1200 pixels are no problem for the chip.

Power Consumption

The entire SoC is rated at an SDP of 2.2 - 2.4 W, which indicates a TDP of less than 4 W. Thus, the chip can be used in passively cooled tablets.

ModelIntel Atom Z3785Intel Atom Z3770D
CodenameBay Trail-TBay Trail-T
SeriesIntel AtomIntel Atom
Series: Atom Bay Trail-T
Intel Atom Z3795 compare1.59 - 2.39 GHz4 / 4 cores
Intel Atom Z3785 « 1.49 - 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 compare1.46 - 2.4 GHz4 / 4 cores
Intel Atom Z3770D1.5 - 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
Intel Atom Z3795 compare1.59 - 2.39 GHz4 / 4 cores
Intel Atom Z37851.49 - 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 compare1.46 - 2.4 GHz4 / 4 cores
Intel Atom Z3770D « 1.5 - 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
Clock1490 - 2410 MHz1500 - 2410 MHz
L1 Cache224 KB224 KB
L2 Cache2 MB2 MB
Cores / Threads4 / 44 / 4
TDP4 Watt4 Watt
Technology22 nm22 nm
SocketUTFCBGA1380UTFCBGA1380
FeaturesIntel HD Graphics (Bay Trail, 313 - 833 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 LPDDR3-1333Intel HD Graphics (Bay Trail, 313 - 688 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. 2 GB Single-Channel DDR3L-RS 1333, Quick Sync
iGPUIntel HD Graphics (Bay Trail) (313 - 833 MHz)Intel HD Graphics (Bay Trail) (313 - 688 MHz)
Architecturex86x86
Announced
Manufacturerark.intel.comark.intel.com
$37 U.S.

Benchmarks

- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)