Ok, so now the Thai embassies and consulates in Cambodia, Malaysia and Vietnam have switched over to the e-visa system.
That means you must apply online to use one of those places. You will no longer be allowed to attend the embassy or consulate in person.
As for them the system is new we won’t have any information about typical processing times for a while yet.
If you’re applying through one of them soon then please post your experiences here so we can try to gain an insight.