Marvell has released the new Sheeva PJ4B core delivering 2.6 DMIPS per MHz and thus superseding ARM's Cortex-A9 core.
http://www.marvell.com/digital-entertainment/armada-1500/assets/Marvell-ARMADA-1500-Product-Brief.pdf (in this SoC interestingly coupled with ARM Ltd's NEON SIMD in addition to Marvell's usual WMMX SIMD)
So this is the new revised list:
ARM Cortex-A7: 1.9 ARM Cortex-A8: 2.0 Qualcomm Scorpion: 2.1 Marvell Sheeva PJ4: 2.4 ARM Cortex-A9: 2.5 Marvell Sheeva PJ4B: 2.6 Qualcomm Krait: 3.3 ARM Cortex-A15: 3.5
