Intel Atom Z3770D vs Intel Atom Z3795

Intel Atom Z3770D

► remove 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.

Intel Atom Z3795

► remove Intel Z3795

The Intel Atom Z3795 is a power efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.59 - 2.39 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 Z3795 offers a slightly higher CPU base clock.

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 1.59 - 2.39 GHz, the Z3795 is significantly faster than previous Intel Atoms, e.g. the Z2760. The Z3795 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 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 778 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 watts, which indicates a TDP of less than 4 watts. Thus, the chip can be used in passively cooled tablets.

Intel Atom Z3770DIntel Atom Z3795
Intel AtomIntel Atom
Bay Trail-TBay Trail-T
: Atom Bay Trail-T
Intel Atom Z37951590 - 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 Z3770D1500 - 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 Z3680D (compare)1330 - 2000 MHz2 / 2
» Intel Atom Z37951590 - 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 Z3770D1500 - 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 Z3680D (compare)1330 - 2000 MHz2 / 2
1500 - 2410 MHz1590 - 2390 MHz
224 KB224 KB
2 MB2 MB
4 / 44 / 4
<4 <4
22 22
UTFCBGA1380UTFCBGA1380
Intel 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 SyncIntel HD Graphics (Bay Trail, 311 - 778 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 LPDDR3-1067
iGPUIntel HD Graphics (Bay Trail) (313 - 688 MHz)Intel HD Graphics (Bay Trail) (311 - 778 MHz)
$37 U.S.$40 U.S.
Intel Atom Z3770DIntel Atom Z3795

Cinebench R15 - CPU Multi 64Bit
min: 118     avg: 127.7     median: 131 (4%)     max: 134 Points
Cinebench R15 - CPU Single 64Bit
min: 36     avg: 37     median: 37 (17%)     max: 38 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 1.61     avg: 1.6     median: 1.6 (6%)     max: 1.64 Points
Cinebench R11.5 - CPU Single 64Bit
0.4 Points (18%)
Cinebench R10 - Rendering Single 32Bit
min: 1220     avg: 1393.7     median: 1234 (13%)     max: 1727 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 3324     avg: 3715     median: 3715 (7%)     max: 4106 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 1727     avg: 4390.3     median: 5683 (7%)     max: 5761 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 1727     avg: 2950.7     median: 1732 (17%)     max: 5393 Points
wPrime 2.0x - 1024m *
1019.5 seconds (12%)
wPrime 2.0x - 32m *
min: 25.928     avg: 27.2     median: 27.2 (5%)     max: 28.4 seconds
WinRAR - Result
1075 KB/s (13%)
X264 HD Benchmark 4.0 - Pass 2
min: 7.12     avg: 8.3     median: 8.3 (6%)     max: 9.5 fps
X264 HD Benchmark 4.0 - Pass 1
min: 37.15     avg: 42.1     median: 42.1 (16%)     max: 47.13 fps
TrueCrypt - Serpent Mean 100MB
min: 0.124     avg: 0.1     median: 0.1 (0%)     max: 0.125 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.193     avg: 0.2     median: 0.2 (7%)     max: 0.195 GB/s
TrueCrypt - AES Mean 100MB
min: 0.885     avg: 0.9     median: 0.9 (5%)     max: 0.891 GB/s
3DMark 06 - CPU
min: 2069     avg: 2145.5     median: 2145.5 (6%)     max: 2222 Points
Super Pi mod 1.5 XS 1M *
min: 36.265     avg: 36.6     median: 36.6 (8%)     max: 37 Seconds
Super Pi mod 1.5 XS 2M *
min: 79.598     avg: 80.3     median: 80.3 (3%)     max: 81 Seconds
Super Pi Mod 1.5 XS 32M *
min: 1732     avg: 1734.6     median: 1734.6 (8%)     max: 1737.23 Seconds
SiSoft Sandra Dhrystone (MIPS)
24.2 MIPS (0%)
SiSoft Sandra Whetstone (MFLOPS)
12.2 MFLOPS (0%)
3DMark Vantage - P CPU no PhysX 1280x1024
3552 Points (6%)
3DMark 11 - Performance Physics 1280x720
min: 1141     avg: 1385.5     median: 1301 (7%)     max: 1799 points
3DMark - Ice Storm Standard Physics 1280x720
18838 Points (12%)
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
20794 Points (26%)
Mozilla Kraken 1.1 - Total Score *
8367.3 ms (14%)
Sunspider - 1.0 Total Score *
388.3 ms (10%)
Octane V2 - Total Score
3353 Points (7%)

Average Benchmarks Intel Atom Z3795 → 100%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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Redaktion, 2017-09- 8 (Update: 2017-09-11)