Qualcomm
Qualcomm () is an American multinational corporation headquartered in San Diego, California, and incorporated in Delaware. It creates semiconductors, software, and services related to wireless technology. It owns patents critical to the 5G, 4 ...
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 In 2015, Krait was superseded by the 64-bit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
A superscalar processor is a CPU that implements a form of parallelism called instruction-level parallelism within a single processor. In contrast to a scalar processor, which can execute at most one single instruction per clock cycle, a sup ...
execution
* Pipelined VFPv4 and 128-bit wide
NEON
Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. It was discovered (along with krypton ...
(
SIMD)
* 7 execution ports
* 4 KB + 4 KB direct mapped L0
cache
* 16 KB + 16 KB 4-way set associative L1 cache
* 1 MB (
dual-core) or 2 MB (quad-core) 8-way set-associative L2 cache
* Dual or quad-core configurations
* Performance (DMIPS/MHz):
** Krait 200: 3.3 (28 nm LP)
** Krait 300: 3.39
(28 nm LP)
** Krait 400: 3.39 (28 nm HPm)
** Krait 450: 3.51 (28 nm HPm)
See also
*
Scorpion (CPU)
*
Kryo (microarchitecture)
*
Comparison of ARMv7-A cores
*
List of Qualcomm Snapdragon processors
References
External links
Qualcomm's Snapdragon S4 Site
{{Application ARM-based chips
ARM processors
Qualcomm IP cores