Krait (processor)
Qualcomm Krait is an ARM-based central processing unit included in the Snapdragon S4 and earlier models of Snapdragon 400/600/800 series SoCs. It was introduced in 2012 as a successor to the Scorpion CPU and although it has architectural similarities, Krait is not a Cortex-A15 core, but it was designed in-house. In 2015, Krait was superseded by the 64-bit Kryo architecture, first introduced in Snapdragon 820 SoC.
Overview
- 11-stage integer pipeline with 3-way decode and 4-way out-of-order speculative issue superscalar execution
- Pipelined VFPv4 and 128-bit wide NEON
- 7 execution ports
- 4 KB + 4 KB direct mapped L0 cache
- 16 KB + 16 KB 4-way set associative L1 cache
- 1 MB or 2 MB 8-way set-associative L2 cache
- Dual- or quad-core configurations
- Performance :
- * Krait 200: 3.3
- * Krait 300: 3.39
- * Krait 400: 3.39
- * Krait 450: 3.51