Well I have only one game you mentioned: Metroid Prime
And the first sequence of it, where you see the pirate space station just before samus arrives - this scene runs shitty even on a i5 4770
For comparison here are the results of the dolphin benchmark
https://docs.google.com/spreadsheet/ccc?key=0AunYlOAfGABxdFQ0UzJyTFAxbzZhYWtGcGwySlRFa1E#gid=0
https://forums.dolphin-emu.org/Thread-new-dolphin-cpu-benchmark-no-game-required
So the problem is not the GPU, but the CPU, which is just overchallenged with dolphin
An encouragement though: There is no CPU (yet) which can run all Games on Dolphin fullspeed all the time
And the first sequence of it, where you see the pirate space station just before samus arrives - this scene runs shitty even on a i5 4770
For comparison here are the results of the dolphin benchmark
https://docs.google.com/spreadsheet/ccc?key=0AunYlOAfGABxdFQ0UzJyTFAxbzZhYWtGcGwySlRFa1E#gid=0
https://forums.dolphin-emu.org/Thread-new-dolphin-cpu-benchmark-no-game-required
So the problem is not the GPU, but the CPU, which is just overchallenged with dolphin
An encouragement though: There is no CPU (yet) which can run all Games on Dolphin fullspeed all the time