Intel Atom Z3795

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.

SeriesIntel Atom
CodenameBay Trail-T
Clock Rate1590 - 2390 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, 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
64 Bit64 Bit support
Hardware VirtualizationVT-x
Starting Price $40 U.S.
Announcement Date05/09/2014
Product Link (external)Intel Atom Z3795

CPU Benchmarks

Octane V2: Total Score
0% 100%
min: 3353     avg: 3353 (14%)     max: 3353 Points
Cinebench R15: CPU Single 64Bit
0% 100%
min: 36     avg: 36 (10.34%)     max: 36 Points
Cinebench R15: CPU Multi 64Bit
0% 100%
min: 134     avg: 134 (8.5%)     max: 134 Points
Mozilla Kraken 1.1: Total Score
0% 100%
min: 8367.3     avg: 8367.3 (87.85%)     max: 8367.3 ms*
3DMark (2013): Ice Storm Standard Physics 1280x720
0% 100%
min: 18838     avg: 18838 (34.8%)     max: 18838 Points
Sunspider:
0% 100%
min: 388.3     avg: 388.3 (90.36%)     max: 388.3 ms*
TrueCrypt: Serpent Mean 100MB
0% 100%
min: 0.124     avg: 0.1 (6.22%)     max: 0.125 GB/s
TrueCrypt: Twofish Mean 100MB
0% 100%
min: 0.193     avg: 0.2 (10.45%)     max: 0.195 GB/s
TrueCrypt: AES Mean 100MB
0% 100%
min: 0.885     avg: 0.9 (9.69%)     max: 0.891 GB/s
X264 HD Benchmark 4.0: Pass 2
0% 100%
min: 7.12     avg: 8.3 (7.72%)     max: 9.5 fps
X264 HD Benchmark 4.0: Pass 1
0% 100%
min: 37.15     avg: 42.1 (19.6%)     max: 47.13 fps
WinRAR: Result
0% 100%
min: 1075     avg: 1075 (14.77%)     max: 1075 KB/s
wPrime 2.0x: 1024m
0% 100%
min: 1019.5     avg: 1019.5 (89.32%)     max: 1019.5 seconds*
wPrime 2.0x: 32m
0% 100%
min: 25.928     avg: 27.2 (95.41%)     max: 28.4 seconds*
3DMark 11: Performance Physics 1280x720
0% 100%
min: 1183     avg: 1491 (11.29%)     max: 1799 points
3DMark Vantage: P CPU no PhysX 1280x1024
0% 100%
min: 3552     avg: 3552 (8.88%)     max: 3552 Points
3DMark 06 - CPU:
0% 100%
min: 2069     avg: 2145.5 (22.47%)     max: 2222 Points
Cinebench R11.5: CPU Single 64Bit
0% 100%
min: 0.44     avg: 0.4 (13.16%)     max: 0.44 Points
Cinebench R11.5: CPU Multi 64Bit
0% 100%
min: 1.64     avg: 1.6 (8.17%)     max: 1.64 Points
Cinebench R10: Rendering Single CPUs 64Bit
0% 100%
min: 1732     avg: 1732 (6.83%)     max: 1732 Points
Cinebench R10: Rendering Multiple CPUs 64Bit
0% 100%
min: 5761     avg: 5761 (13.81%)     max: 5761 Points
Cinebench R10: Rendering Single 32Bit
0% 100%
min: 1220     avg: 1227 (16.74%)     max: 1234 Points
Cinebench R10: Rendering Multiple CPUs 32Bit
0% 100%
min: 3324     avg: 3715 (10.68%)     max: 4106 Points
Super Pi mod 1.5 XS 1M:
0% 100%
min: 36.265     avg: 36.6 (93.91%)     max: 37 Seconds*
Super Pi mod 1.5 XS 2M:
0% 100%
min: 79.598     avg: 80.3 (97.44%)     max: 81 Seconds*
Super Pi Mod 1.5 XS 32M:
0% 100%
min: 1732     avg: 1734.6 (92.35%)     max: 1737.23 Seconds*
SiSoft Sandra Dhrystone (MIPS):
0% 100%
min: 24.2     avg: 24.2 (0%)     max: 24.2 MIPS
SiSoft Sandra Whetstone (MFLOPS):
0% 100%
min: 12.2     avg: 12.2 (0%)     max: 12.2 MFLOPS
- Range of benchmarks for this CPU
- Average benchmark score

Reviews for the Intel Atom Z3795 processor

HP ElitePad 1000 G2 (Intel HD Graphics (Bay Trail), 10.1")
» HP ElitePad 1000 G2 (F1Q77EA) Tablet Review - Review
» HP ElitePad 1000 G2 - External Review

Lenovo ThinkPad 10 (Intel HD Graphics (Bay Trail), 10.1")
» Lenovo ThinkPad 10 Multimode Tablet Review - Review
» Lenovo ThinkPad 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 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 Z3560
   1.83 GHz / 2 MB
» Intel Atom Z3680
   1.33 GHz / 1 MB
» Intel Atom Z3680D
   1.33 GHz / 1 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 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 Z2760
   1.8 GHz / 1 MB
» Intel Atom D525
   1.8 GHz / 1 MB
» Intel Atom N2650
   1.73 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 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 J1900
   2 GHz / 2 MB
- 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 / 2048 KB
+ 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
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > Intel Atom Z3795 Tablet SoC
Author: Klaus Hinum (Update: 2014-05-17)