2 ms·
More than twice I would say. iPad's A4 is a tweaked Cortex A8. Cortex A9 is out-of-order compared to in-order A8 and will likely be faster per clock.
by codedivine 16y ago
More than twice I would say. iPad's A4 is a tweaked Cortex A8. Cortex A9 is out-of-order compared to in-order A8 and will likely be faster per clock.
- mansr 16y agoThe A9 is readily 25% faster per clock than the A8 for scalar integer operations. Scalar floating-point is 5-10x faster depending on the exact operations. Vector instructions are mostly the same or slower than A8 due to lack of the limited dual-issue present in A8. I have yet to run a proper benchmark to compare the difference in vector performance in realistic situations.