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Unisoc Launches Tiger T310

June 25, 2019

Author: Linley Gwennap

Tapping a popular Chinese icon, Unisoc (紫光展锐) branded its first new smartphone processor as the Tiger T310. Formerly called Spreadtrum, the company targets the new chip at its traditional entry-level customers. The T310 is the industry’s first low-cost chip to use Cortex-A75, one of Arm’s “big” cores generally reserved for premium phones. Unlike those models, the new processor has only a single big core along with three “little” Cortex-A55 cores. Arm’s DynamIQ technology, which was unavailable in previous generations, enables this 1+3 CPU combination. The company positions the 12nm SoC, which should appear in phones this month, against low-end eight-core processors.

The T310’s 2.0GHz Cortex-A75 delivers more than twice the single-thread performance of the Cortex-A53 CPUs typically found in low-cost phones. Single-core performance is particularly important for opening apps and browsing the web. The three 1.8GHz Cortex-A55 cores provide power-efficient performance for basic tasks such as messaging and music streaming. Thus, the new processor should greatly improve single-core performance. The combination of 12nm manufacturing and the newer A55 design (instead of the A53) extend battery life by 15% relative to its previous chips, according to the company.

The T310 features Unisoc’s most advanced modem and its first with CDMA capability. This addition targets China Telecom, one of the world’s few carriers that still operate a CDMA network. The six-mode device also supports TD- and FD-LTE, WCDMA, TD-SCDMA, and GSM. The company didn’t specify the maximum LTE data rate, but its previous devices are limited to 150Mbps (Category 4).

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