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Intel Atom Z3745D

Intel Z3745D

The Intel Atom Z3745D is a power-efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.33 - 1.83 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 Z3745, the Z3745D 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 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 Z3745D is significantly faster than previous Intel Atoms like the Z2760. Depending on the benchmark, the Z3745D competes with AMDs Temash and Kabini APUs like the 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 792 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 1920 x 1200 pixels are no problem for the chip.

Power Consumption

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

SeriesIntel Atom
CodenameBay Trail-T
Clock Rate1330 - 1830 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
FeaturesIntel HD Graphics (Bay Trail, 313 - 792 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
GPUIntel HD Graphics (Bay Trail) (311 - 792 MHz)
64 Bit64 Bit support
Hardware VirtualizationVT-x
Starting Price $32 U.S.
Announcement Date06/01/2014
Product Link (external)Intel Atom Z3745D

CPU Benchmarks

3DMark (2013): Ice Storm Unlimited Physics 1280x720 offscreen
0% 100%
min: 7226     avg: 7226 (7.89%)     max: 7226 Points
3DMark (2013): Ice Storm Extreme Physics 1920x1080
0% 100%
min: 16261     avg: 16261 (34.13%)     max: 16261 Points
Sunspider: 1.0 Total Score
0% 100%
min: 629     avg: 629 (84.38%)     max: 629 ms*
X264 HD Benchmark 4.0: Pass 2
0% 100%
min: 7.26     avg: 7.3 (6.46%)     max: 7.26 fps
X264 HD Benchmark 4.0: Pass 1
0% 100%
min: 38.09     avg: 38.1 (16.62%)     max: 38.09 fps
3DMark 11: Performance Physics 1280x720
0% 100%
min: 1345     avg: 1345 (10.18%)     max: 1345 points
Cinebench R10: Rendering Single 32Bit
0% 100%
min: 972     avg: 972 (12.83%)     max: 972 Points
Cinebench R10: Rendering Multiple CPUs 32Bit
0% 100%
min: 3389     avg: 3389 (9.75%)     max: 3389 Points
Super Pi mod 1.5 XS 1M:
0% 100%
min: 11     avg: 11 (99.43%)     max: 11 Seconds*
Super Pi mod 1.5 XS 2M:
0% 100%
min: 25     avg: 25 (99.74%)     max: 25 Seconds*
Super Pi Mod 1.5 XS 32M:
0% 100%
min: 623     avg: 623 (99.26%)     max: 623 Seconds*
- Range of benchmarks for this CPU
- Average benchmark score

Reviews for the Intel Atom Z3745D processor

Acer Aspire Switch 10 SW5-011-12VU (Intel HD Graphics (Bay Trail), 10.1")
» Acer Aspire Switch 10 SW5-011-12VU Convertible Review - Review
» Acer Aspire Switch 10 - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

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 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

- AMD Turion X2 Ultra ZM-84
   2.3 GHz / 2 MB
- Intel Pentium Dual Core T3200
   2 GHz / 1 MB
- Intel Pentium Dual Core T2410
   2 GHz / 1 MB
- Intel Pentium 997
   1.6 GHz / 0.5 MB + 2 MB
- Intel Atom Z3745
   1.33 GHz / 2 MB
» Intel Atom Z3745D
   1.33 GHz / 2 MB
+ Intel Atom Z3740
   1.33 GHz / 2048 KB
+ Intel Atom Z3740D
   1.33 GHz / 2048 KB
+ Intel Atom Z3735D
   1.33 GHz / 2048 KB
+ Intel Atom Z3735E
   1.33 GHz / 2048 KB
+ Intel Atom Z3735F
   1.33 GHz / 2048 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > Intel Atom Z3745D Tablet SoC
Author: Klaus Hinum (Update: 2014-05- 3)