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Intel Atom Z3785

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.

SeriesIntel Atom
CodenameBay Trail-T
Clock Rate1490 - 2410 MHz
Level 1 Cache224 KB
Level 2 Cache2048 KB
Number of Cores / Threads4 / 4
Max. Power Consumption (TDP = Thermal Design Power)<4 Watt
Manufacturing Technology22 nm
SocketUTFCBGA1380
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 LPDDR3-1333
GPUIntel HD Graphics (Bay Trail) (313 - 833 MHz)
64 Bit64 Bit support
Hardware VirtualizationVT-x
Announcement Date06/01/2014
Product Link (external)Intel Atom Z3785

Benchmarks

No benchmarks found for this graphics card.

#0 Table tx_nbc2_benchcache_cpu alreday found +0.024s ... 0.024s

#1 About to fill cache table +0s ... 0.024s

#2 Filled cache +7.428s ... 7.452s

#3 return log +0.22s ... 7.672s

:: No reviews found for this CPU (yet).

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Other CPUs of the series Intel Atom

» Intel Atom Z3795
   1.59 GHz / 2 MB
» Intel Atom Z3785
   1.49 GHz / 2 MB
» Intel Atom Z3775
   1.46 GHz / 2 MB
» Intel Atom Z3775D
   1.49 GHz / 2 MB
» Intel Atom Z3770
   1.46 GHz / 2 MB
» Intel Atom Z3770D
   1.5 GHz / 2 MB
» Intel Atom E3845
   1.91 GHz / 2 MB
» Intel Atom Z3580
   2.33 GHz / 2 MB
» Intel Atom Z3736F
   1.33 GHz / 2 MB
» Intel Atom Z3736G
   1.33 GHz / 2 MB
» Intel Atom Z3745
   1.33 GHz / 2 MB
» Intel Atom Z3745D
   1.33 GHz / 2 MB
» Intel Atom Z3740
   1.33 GHz / 2 MB
» Intel Atom Z3740D
   1.33 GHz / 2 MB
» Intel Atom Z3735D
   1.33 GHz / 2 MB
» Intel Atom Z3735E
   1.33 GHz / 2 MB
» Intel Atom Z3735F
   1.33 GHz / 2 MB
» Intel Atom Z3735G
   1.33 GHz / 2 MB
» Intel Atom Z3680
   1.33 GHz / 1 MB
» Intel Atom Z3680D
   1.33 GHz / 1 MB
» Intel Atom Z3570
   2 GHz / 2 MB
» Intel Atom Z3560
   1.83 GHz / 2 MB
» Intel Atom Z3480
   2.13 GHz / 1 MB
» Intel Atom Z3530
   1.33 GHz / 2 MB
» Intel Atom D2700
   2.13 GHz / 1 MB
» Intel Atom E3827
   1.75 GHz / 1 MB
» Intel Atom N2850
   2 GHz / 1 MB
» Intel Atom Z3460
   1.6 GHz / 1 MB
» Intel Atom D2560
   2 GHz / 1 MB
» Intel Atom D2550
   1.87 GHz / 1 MB
» Intel Atom N2800
   1.86 GHz / 1 MB
» Intel Atom E3826
   1.46 GHz / 1 MB
» Intel Atom Z2760
   1.8 GHz / 1 MB
» Intel Atom D525
   1.8 GHz / 1 MB
» Intel Atom N2650
   1.73 GHz / 1 MB
» Intel Atom E3825
   1.33 GHz / 1 MB
» Intel Atom E3805
   1.33 GHz / 1 MB
» Intel Atom N570
   1.66 GHz / 1 MB
» Intel Atom N2600
   1.6 GHz / 1 MB
» Intel Atom 330
   1.6 GHz / 1 MB
» Intel Atom N550
   1.5 GHz / 1 MB
» Intel Atom D2500
   1.87 GHz / 1 MB
» Intel Atom Z2580
   1.3 GHz / 1 MB
» Intel Atom Z2560
   0.93 GHz / 1 MB
» Intel Atom Z560
   2.13 GHz / 0.5 MB
» Intel Atom Z550
   2 GHz / 0.5 MB
» Intel Atom Z2480
   2 GHz / 0.5 MB
» Intel Atom E3815
   1.46 GHz / 0.5 MB
» Intel Atom N475
   1.86 GHz / 0.5 MB
» Intel Atom N470
   1.86 GHz / 0.5 MB
» Intel Atom Z540
   1.83 GHz / 0.5 MB
» Intel Atom N455
   1.66 GHz / 0.5 MB
» Intel Atom N450
   1.66 GHz / 0.5 MB
» Intel Atom N280
   1.66 GHz / 0.5 MB
» Intel Atom 230
   1.6 GHz / 0.5 MB
» Intel Atom Z530
   1.6 GHz / 0.5 MB
» Intel Atom N270
   1.6 GHz / 0.5 MB
» Intel Atom Z670
   1.5 GHz / 0.5 MB
» Intel Atom Z2460
   1.3 GHz / 0.5 MB
» Intel Atom N435
   1.33 GHz / 0.5 MB
» Intel Atom N435
   1.33 GHz / 0.5 MB
» Intel Atom Z520
   1.33 GHz / 0.5 MB
» Intel Atom Z2420
   1.2 GHz / 0.5 MB
» Intel Atom Z510
   1.1 GHz / 0.5 MB
» Intel Atom Z2000
   1 GHz / 0.5 MB
» Intel Atom Z500
   0.8 GHz / 0.5 MB

Surrounding CPUs

- Intel Core i3 4010Y
   1.3 GHz / 0.5 MB + 3 MB
- AMD A-Series A4-6210
   1.8 GHz / 2 MB
- Intel Atom Z3795
   1.59 GHz / 2 MB
» Intel Atom Z3785
   1.49 GHz / 2 MB
+ Intel Atom Z3775
   1.46 GHz / 2048 KB
+ Intel Atom Z3775D
   1.49 GHz / 2048 KB
+ Intel Atom Z3770
   1.46 GHz / 2048 KB
+ Intel Atom Z3770D
   1.5 GHz / 2048 KB
+ Intel Celeron N2940
   1.83 GHz / 2048 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > Intel Atom Z3785 Tablet SoC
Author: Klaus Hinum (Update: 2014-07-25)