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Intel Atom Z3770

Intel Z3770

The Intel Atom Z3770 is a power efficient quad-core SoC for Windows and Android tablets. It is clocked at 1.46 - 2.4 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 4 CPU cores and a clock speed of 1.46 - 2.4 GHz, the Z3770 is significantly faster than previous Intel Atoms, e.g. the Z2760. In our benchmarks, the Z3770 even slightly beats the Kabini APU 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 667 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
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 Z37701460 - 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 Z3680D (compare)1330 - 2000 MHz2 / 2
Clock Rate1460 - 2400 MHz
Level 1 Cache224 KB
Level 2 Cache2 MB
Number of Cores / Threads4 / 4
Max. Power Consumption (TDP = Thermal Design Power)<4 Watt
Manufacturing Technology22 nm
SocketUTFCBGA1380
FeaturesIntel HD Graphics (Bay Trail, 311 - 667 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
GPUIntel HD Graphics (Bay Trail) (311 - 667 MHz)
64 Bit64 Bit support
Starting Price$37 U.S.
Announcement Date09/11/2013
Product Link (external)Intel Atom Z3770

Benchmarks

Cinebench R10 - Rendering Single 32Bit
min: 997     avg: 1157.6     median: 1189 (15%)     max: 1230 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 2848     avg: 3690.5     median: 3961 (8%)     max: 4035 Points
wPrime 2.0x - 1024m *
min: 836.7     avg: 921.8     median: 862.3 (10%)     max: 1126 seconds
wPrime 2.0x - 32m *
min: 24     avg: 25.9     median: 26.6 (5%)     max: 26.6 seconds
X264 HD Benchmark 4.0 - Pass 2
min: 6.2     avg: 7.8     median: 7.7 (5%)     max: 9.5 fps
X264 HD Benchmark 4.0 - Pass 1
min: 31.5     avg: 39.3     median: 40.5 (17%)     max: 45.9 fps
TrueCrypt - Serpent Mean 100MB
min: 0.077     avg: 0.1     median: 0.1 (7%)     max: 0.123 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.12     avg: 0.2     median: 0.2 (9%)     max: 0.193 GB/s
TrueCrypt - AES Mean 100MB
min: 0.44     avg: 0.8     median: 0.9 (7%)     max: 0.886 GB/s
3DMark 06 - CPU
min: 2203     avg: 2212     median: 2212 (17%)     max: 2221 Points
Super Pi mod 1.5 XS 1M *
min: 27     avg: 33.3     median: 36 (8%)     max: 37 Seconds
Super Pi mod 1.5 XS 2M *
min: 61     avg: 74     median: 80 (3%)     max: 81 Seconds
Super Pi Mod 1.5 XS 32M *
min: 1566     avg: 1685.7     median: 1735 (8%)     max: 1756 Seconds
SiSoft Sandra Dhrystone (MIPS)
min: 15.66     avg: 7984.3     median: 7984.3 (4%)     max: 15953 MIPS
SiSoft Sandra Whetstone (MFLOPS)
min: 7.38     avg: 3730.7     median: 3730.7 (3%)     max: 7454 MFLOPS
3DMark Vantage - P CPU no PhysX 1280x1024
min: 3379     avg: 4056.5     median: 4056.5 (7%)     max: 4734 Points
3DMark 11 - Performance Physics 1280x720
min: 1199     avg: 1352.6     median: 1330 (8%)     max: 1512 points
3DMark - Ice Storm Standard Physics 1280x720
min: 11561     avg: 16054     median: 17754 (11%)     max: 18706 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 17931     avg: 18729.3     median: 18754 (27%)     max: 19503 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 956     avg: 1315.6     median: 1471 (4%)     max: 1555 Points
3DMark - Fire Strike Physics 1920x1080
min: 1348     avg: 1748     median: 1748 (8%)     max: 2148 Points
Geekbench 2 - 32 Bit - Stream
min: 2472     avg: 2522.5     median: 2522.5 (20%)     max: 2573 Points
Geekbench 2 - 32 Bit - Memory
min: 2278     avg: 2357.5     median: 2357.5 (21%)     max: 2437 Points
Geekbench 2 - 32 Bit - Floating Point
min: 3092     avg: 3110     median: 3110 (9%)     max: 3128 Points
Geekbench 2 - 32 Bit - Integer
min: 3617     avg: 3637     median: 3637 (11%)     max: 3657 Points
Geekbench 2 - 32 Bit - Total Score
min: 3063     avg: 3084.5     median: 3084.5 (12%)     max: 3106 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 2998     avg: 3035     median: 3035 (10%)     max: 3072 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 977     avg: 980.5     median: 980.5 (21%)     max: 984 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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