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Imagination Takes On ARMís big.LITTLE With Its Warrior Core
10/15/2013

MIPS P5600 Coherence Manager (Source: Imagination Technologies)
MIPS P5600 Coherence Manager (Source: Imagination Technologies)

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elctrnx_lyf
User Rank
Manager
Warrior
elctrnx_lyf   10/19/2013 8:52:21 AM
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Imaginations has a very strong expertise and past experience in the development of graphic cores. They see to be really in full control of the future.

Wilco1
User Rank
CEO
It's not big.Little but NVidia's 4+1
Wilco1   10/15/2013 6:09:37 PM
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Warrior is basically an A15 clone which uses NVidia's 4+1 approach rather than big.Little (however you're right that by the time Warrior comes out it'll have to compete with the 64-bit A57/A53).

The 30% smaller size is based on a comparison with the 28nm Octa core - however its consists of mostly L2 cache (66%). TSMC has smaller SRAMs, so if Warrior actually has a 30% smaller CORE (rather than a more dense L2) then that would be impressive - certainly if it also gives A15-class performance. But given the comparison I doubt it. See this for an interesting core comparison: http://chip-architect.com/news/2013_core_sizes_768.jpg

Also interesting to see they had to do macro-op fusion to combine 2 loads/stores instead of adding LDRD/STRD instructions like ARM did. I don't think they will ever be comparing MIPS with ARM on codesize!

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