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Intel Atom Z3680D

Intel Z3680D

The Intel Atom Z3680D is a power-efficient dual-core SoC for Windows and Android tablets. It is clocked at 1.33 - 2.0 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 Z3680, the Z3680D offers a different 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 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 the improved performance per clock, the Z3680D is faster than previous Intel Atoms like the Z2760. Presumably, the Z3680D even competes with AMD APUs like the AMD A4-4355M. For simple everyday tasks such as Internet or Office the performance is adequate, but not for 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). 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 should be rated at an SDP of about 2 W, which would indicate a TDP of less than 4 W. Thus, the chip can be used in passively cooled tablets.

SeriesIntel Atom
CodenameBay Trail-T
Series: Atom Bay Trail-T
Intel Atom Z3795 (compare)1590 - 2390 MHz4 / 4
Intel Atom Z3785 (compare)1490 - 2410 MHz4 / 4
Intel Atom Z3775 (compare)1460 - 2390 MHz4 / 4
Intel Atom Z3775D (compare)1490 - 2410 MHz4 / 4
Intel Atom Z3770 (compare)1460 - 2400 MHz4 / 4
Intel Atom Z3770D (compare)1500 - 2410 MHz4 / 4
Intel Atom Z3736F (compare)1330 - 2160 MHz4 / 4
Intel Atom Z3736G (compare)1330 - 2160 MHz4 / 4
Intel Atom Z3745 (compare)1330 - 1860 MHz4 / 4
Intel Atom Z3745D (compare)1330 - 1830 MHz4 / 4
Intel Atom Z3740 (compare)1330 - 1860 MHz4 / 4
Intel Atom Z3740D (compare)1330 - 1830 MHz4 / 4
Intel Atom Z3735D (compare)1330 - 1830 MHz4 / 4
Intel Atom Z3735E (compare)1330 - 1830 MHz4 / 4
Intel Atom Z3735F (compare)1330 - 1830 MHz4 / 4
Intel Atom Z3735G (compare)1330 - 1830 MHz4 / 4
Intel Atom Z3680 (compare)1330 - 2000 MHz2 / 2
» Intel Atom Z3680D1330 - 2000 MHz2 / 2
Clock Rate1330 - 2000 MHz
Level 1 Cache112 KB
Level 2 Cache1 MB
Number of Cores / Threads2 / 2
Max. Power Consumption (TDP = Thermal Design Power)<4 Watt
Manufacturing Technology22 nm
FeaturesIntel HD Graphics (Bay Trail, max. 688 MHz), Intel 64, SSE 4.1, SSE 4.2, AES-NI, max. 2 GB Single-Channel DDR3L-RS 1333, Quick Sync
GPUIntel HD Graphics (Bay Trail) (313 - 688 MHz)
64 Bit64 Bit support
Announcement Date09/11/2013

Benchmarks

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- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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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 C3440
   1.2 GHz / 1 MB
» Intel Atom Z3530
   1.33 GHz / 2 MB
» Intel Atom D2700
   2.13 GHz / 1 MB
» Intel Atom C3230RK
   1.1 GHz / 0 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 C3130
   1 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 Celeron N2815
   1.86 GHz / 1 MB
- Intel Celeron N3000
   1.04 GHz / 2 MB
- Intel Celeron N2810
   2 GHz / 1 MB
- NVIDIA Tegra 4
   1.8 GHz / 0 MB
- Intel Atom Z3680
   1.33 GHz / 1 MB
» Intel Atom Z3680D
   1.33 GHz / 1 MB
+ Intel Core 2 Duo T5470
   1.6 GHz / 2048 KB
+ Intel Core 2 Duo T5450
   1.66 GHz / 2048 KB
+ Intel Core 2 Duo T5300
   1.73 GHz / 2048 KB
+ Intel Core Duo L2500
   1.83 GHz / 2048 KB
+ Intel Core Duo T2350
   1.86 GHz / 2048 KB
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Atom Z3680D Tablet SoC
Klaus Hinum (Update: 2013-09- 9)