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Intel Atom Z3680 vs Intel Atom Z3745D

Intel Atom Z3680

► remove from comparison Intel Z3680

The Intel Atom Z3680 is a power efficient dual-core SoC for Windows and Android tablets. It is clocked at 1.33 - 2.0 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 the improved performance per clock, the Z3680 is faster than previous Intel Atoms, e.g. the Z2760. Presumably, the Z3680 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 667 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 1280 x 800 pixels are no problem for the chip.

Power Consumption

The entire SoC should be rated at an SDP of about 2 watts, which would indicate a TDP of less than 4 watts. Thus, the chip can be used in passively cooled tablets.

Intel Atom Z3745D

► remove from comparison 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.

ModelIntel Atom Z3680Intel Atom Z3745D
SeriesIntel AtomIntel Atom
CodenameBay Trail-TBay 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 compare1.46 - 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 Z3745D1.33 - 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 « 1.33 - 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 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 compare1.46 - 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 « 1.33 - 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 Z36801.33 - 2 GHz2 / 2 cores
Intel Atom Z3680D compare1.33 - 2 GHz2 / 2 cores
Clock1330 - 2000 MHz1330 - 1830 MHz
L1 Cache112 KB224 KB
L2 Cache1 MB2 MB
Cores / Threads2 / 24 / 4
TDP4 Watt<4 Watt
Technology22 nm22 nm
FeaturesIntel HD Graphics (Bay Trail, max. 667 MHz), Intel 64, SSE 4.1, SSE 4.2, AES-NI, max. 1 GB Single-Channel LPDDR3-1067, Quick SyncIntel 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
iGPUIntel HD Graphics (Bay Trail) (311 - 667 MHz)Intel HD Graphics (Bay Trail) (311 - 792 MHz)
Architecturex86x86
Announced
$32 U.S.
Manufacturerark.intel.com

Benchmarks

Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 Z3745D +
972 Points (6%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 Z3745D +
3389 Points (2%)
X264 HD Benchmark 4.0 - x264 Pass 2
100%
1 Z3745D +
7.3 fps (3%)
X264 HD Benchmark 4.0 - x264 Pass 1
100%
1 Z3745D +
38.1 fps (9%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 Z3745D +
25 s (1%)
3DMark 11 - 3DM11 Performance Physics
100%
1 Z3745D +
1345 Points (4%)
3DMark - 3DMark Ice Storm Extreme Physics
100%
1 Z3745D +
16261 Points (13%)
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 Z3745D +
7226 Points (6%)
Sunspider - Sunspider 1.0 Total Score *
100%
1 Z3745D +
629 ms (7%)

Average Benchmarks Intel Atom Z3745D → 0% n=

- Range of benchmark values for this graphics card
- 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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show all (including archived), 2024, 2023
v1.26
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Redaktion, 2017-09- 8 (Update: 2023-07- 1)