Update:

> New list of DMIPS per MHz and core figures

ARM Cortex-A7: 1.9
ARM Cortex-A8: 2.0
ARM Cortex-A35: 1.8...2.1 (depending on source)
Qualcomm Scorpion: 2.1
ARM Cortex-A53: 2.3
Marvell Sheeva PJ4: 2.4
ARM Cortex-A9: 2.5
Marvell Sheeva PJ4B: 2.6
Qualcomm Krait 200: 3.1...3.3 (depending on source)
Qualcomm Krait: 3.3
Qualcomm Krait 300: 3.4
ARM Cortex-A12: 3.0...3.5 (depending on source)
Broadcom Brahma15: 3.5 (unsure whether or not this core is just ARM Cortex-A15)
Apple Swift: 3.5
Qualcomm Krait 450: 3.5
Qualcomm Krait 400: 3.4...3.6 (depending on source)
ARM Cortex-A17: 2.8...4.0 (depending on source)
ARM Cortex-A15: 3.5...4.0 (depending on implementation)
Applied Micro Potenza: 4.2
ARM Cortex-A57: 4.1...4.8 (depending on implementation)
Samsung M1/Mongoose: 5.1
Qualcomm Kryo: 6.3
ARM Cortex-A72: 4.8...7.4 (depending on source)
ARM Cortex-A73: 4.9...8.5 (depending on source)