Đánh Giá Snapdragon 615


TheQualcomm Snapdragon 615 MSM8939is a mid-range ARMv8-based SoC largely for game android tablets & smartphones. Announced in February 2014, the S615 is one of the first 64-bit capable SoCs from Qualcomm. In addition lớn 8 Cortex-A53 CPU cores at up to 1.7 GHz, the SoC integrates an Adreno 405 GPU with a 2x 32-bit memory controller (LPDDR3-1600, 12.8 GB/s) and supports Wi-Fi (802.11ac), công nghệ bluetooth không dây 4.0, UMTS, and LTE.

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The Cortex-A53 is the successor lớn the very popular Cortex-A7 design. In addition to the new 64-bit capable ARMv8 ISA, the cores offer a variety of other improvements such as better branch prediction. This leads lớn a significantly higher performance per clock, which is even above the older Cortex-A9.

The eight cores of the Snapdragon 615 are divided into two quad-core clusters, each optimized for a different operating point. While one cluster can clock up lớn 1.7 GHz to handle more demanding applications, the other cluster is limited lớn a maximum of 1.0 GHz for energy-saving purposes.All eight cores can be active at the same time, although most applications aren"t parallelized to support 8 cores efficiently.

Overall, the Snapdragon 615 offers a performance similar to that of the older Snapdragon 600 (Krait architecture).

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Another new feature is the integrated graphics unit named Adreno 405 (550 MHz). The Adreno 400 series has been substantially redesigned & supports DirectX 11.2 (FL 11_1) including hardware tessellation, OpenGL ES 3.1, và OpenCL 1.2. Furthermore, the performance has been significantly improved, which is now similar to the Adreno 320 and PowerVR G6200.


The Snapdragon 615 offers numerous wireless technologies such as công nghệ bluetooth không dây 4.0 và WLAN 802.11a/b/g/n/ac as well as a Multi-SIM cellular modem supporting LTE cat. 4 (up to 150 Mbps), WCDMA, CDMA, EV-DO, TD-SCDMA & GSM/EDGE.

The SoC can encode và decode 1080p videos using dedicated hardware and stream content to displays with up to 2560 x 2048 pixels. A large number of video codecs including H.265 (playback only) will be supported. The camera ISP can handle sensors with up khổng lồ 21 MP.

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Power Consumption

The Snapdragon 615 is manufactured by TSMC in a 28 nm LP process. According to the specifications, we expect a medium or medium-high power consumption for use in medium-sized or larger smartphones and tablets.