Two months ago we reported on upcoming Bay Trail-T refresh, that will be comprised of 9 new Atom-branded systems-on-a-chip. The "Bay Trail-T" is an ultra low power core, built on the latest 22nm process, and used by inexpensive dual- and quad-core processors for tablets. The first wave of these products was launched in September of last year, and consisted on Z3740, Z3740D, Z3770 and Z3770D models. At the beginning of this quarter we should see the second wave of tablet processors, including Atom Z3745, Z3745D, Z3775, Z3775D and Z3795 mid- to high-end models, and Atom Z3735D and Z3735E value SKUs. Atom Z3735F and Z3735G entry-level SKUs should be also available this quarter. The "F" and "G" chips will be shipped in 7" Android tablets, priced at $129 or less. Specifications of these Atoms are now available in the "Intel Atom Processor Z3600 and Z3700 Series" datasheet from Intel's website.
We published details of Z3795, Z3775, Z3775D, Z3745, Z3745D, Z3735D and Z3735E processors in our previous story, and they mostly match the information in the datasheet. We have not reported on the Z3735F and Z3735G SKUs yet. Based on the datasheet, they have the same CPU characteristics as the Z3735D and Z3735E respectively. The Z3735F is a quad-core processor, operating at 1.33 GHz, or up to 1.58 GHz when 3 or 4 cores are active, or up 1.83 GHz when at least two cores are idle. The chip has 2 MB of L2 cache, single-channel DDR3 memory controller, and seventh-generation graphics unit. The memory controller uses 64 bit wide bus to access DDR3L-RS 1333 memory. The maximum supported memory size on the Z3735F is 2 GB. The GPU runs at 313 MHz, and has the maximum burst frequency of 646 MHz (688 MHz according to our sources). Similar to the Z3735D, the Z3735F has the maximum recommended display resolution of 1900x1200.
The Z3735G has 32-bit memory bus, which limits supported RAM size to 1 GB, and cuts in half memory bandwidth from 10.6 GB/s to 5.3 GB/s. Its maximum display resolution is 1200x800.
The main difference between entry-level SKUs and the Z3735D/E is the packaging. The "F" and "G" parts use the same size package with fewer ball contacts, which is presumably less expensive in manufacturing. To accommodate smaller number of I/O contacts, Intel removed some interfaces and reduced the number of ports and controllers, available on the chip. For instance, the "F" and "G" chips have two Camera Serial interface ports instead of 3, and fewer number of USB 2.0, I2S and I2C ports. Also, the entry-level Atoms do not have an LPC interface, and they do not support USB 3.0. The Z3735F and Z3735G incorporate image signal processor, audio processing engine, and a media encode/decode engine, capable of encoding/decoding of H.264, VC1, VP8, and WMV9 video formats. The TDP of Z3735F/G processors was not disclosed, however the datasheet states that both chips have 2.2 Watt Scenario Design Power.