Kryo (microarchitecture)

Kryo

Produced	2015
Designed by	Qualcomm
Common manufacturer(s)	Qualcomm
Max. CPU clock rate	1.36 GHz to 2.6? GHz
Instruction set	ARMv8-A
Cores	4 (2+2)
L1 cache	32 KiB + 32 KiB
L2 cache	512 KiB (small cores) + 1 MiB (big cores)
Predecessor	Krait

Kryo is a microarchitecture designed by Qualcomm implementing the ARMv8-A 64-bit instruction set, and serves as the succesor to the old 32-bit Krait core. It was announced in September 2015 and first used in the Snapdragon 820 SoC,^[1] which is manufactured in Samsung's 14 nm FinFET process. The Kryo cores can be used in both parts of the big.LITTLE configuration, where two dual-core clusters (in the case of Snapdragon 820) run at different clock frequency, similar to how both Cortex-A53 clusters work in the Snapdragon 615.

Overview

• Pipelined processor with an out-of-order superscalar execution pipeline
• 32 KiB + 32 KiB L1 cache^[2]
• 512 MiB (low-frequency cores) + 1 MiB (high-frequency cores) L2 cache
• Core performance: 6.3 DMIPS

See also

• Krait (CPU)
• Scorpion (CPU)
• Comparison of ARMv8-A cores

References

1. "Qualcomm Announces Kryo CPU Details: Quad Core 2.2 GHz, 14nm FinFET". AnandTech. 2015-09-02.
2. http://www.anandtech.com/show/9837/snapdragon-820-preview/2