I think EDID may help with HDMI at boot-time, which is an important bug for some people. I did run a stopwatch on 0x16260006, and the times with and without EDID came out the same, from pressing Enter in Clover to the first color on the username/password screen.
ETA: I'm running Clover at 1024x768. Not sure that makes any difference.
Your GT frequency doesn't budge from 350MHz. You're probably missing the GFX0->IGPU patch.
Here's what my power gadget looks like. One of these has the frequency vectors patch that allows 800MHz. I think it's interesting that there is not much difference in actual power consumption between the two.
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