Krait (CPU)
Krait | |
---|---|
Production: | since 2012 |
Producer: | Qualcomm |
Processor clock: | 1 GHz to 2.7 GHz |
Instruction set : | ARMv7 instruction set , Thumb instruction set |
Name of the processor core: | 1,2 or 4 |
Krait is an ARM -based processor that is included in the Qualcomm Snapdragon S4 and Snapdragon 400/600/800/801/805 (Krait 200, Krait 300, Krait 400 and Krait 450). It was introduced in 2012 as the successor to the CPU Scorpion , and although it shares architectural similarities, Krait is not a Cortex-A15 core, but was developed in-house.
overview
- 11-step integer pipeline with 3-way decoding, 4-way out-of-order execution , speculative execution and superscalarity
- Floating point pipeline VFPv4 and 128 bit wide NEON ( SIMD )
- 7 execution ports
- 4 KB + 4 KB directly mapped L0 cache
- 16 KB + 16 KB 4x set associative L1 cache
- 1 MB (dual-core) or 2 MB (quad-core) 8-fold 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
Individual evidence
- ^ Evolution of Processor Architecture in Mobile Phones. P. 4 , accessed on August 31, 2018 (English).
- ↑ a b c Qualcomm Snapdragon S4 (Krait) Performance Preview - 1.5 GHz MSM8960 MDP and Adreno 225 benchmarks. February 21, 2012, accessed August 31, 2018 .
- ↑ Qualcomm's New Snapdragon S4: MSM8960 & Krait Architecture Explored . Anandtech . October 7, 2011. Retrieved July 28, 2013.
- ↑ Qualcomm Snapdragon S4 (Krait) Performance Preview - 1.5 GHz MSM8960 MDP and Adreno 225 benchmarks . Anandtech . February 21, 2012. Retrieved July 28, 2013.
- ↑ Linley Gwennap: Krait 300 Bumps Up Performance . In: Linley on Mobile . The Linley Group. December 18, 2012. Retrieved July 28, 2013.