At its peak i think (based on googling) the nazis killed about 14,000 per day, which would put it in a similar ball park on a per-day basis. However they kept up the level of killing and didn't stop after just a few days.

https://www.ncbi.nlm.nih.gov/search/research-news/2846/

The difference is that the nazis moved people from their homes onto trains, then the execution was a formalized program of removing property, valuables, execution and incineration. In Iran the military unloaded machine guns into crowds and left the locals to deal with the bodies, and it happened throughout the country instead of at specific locations.

Nazis were … prolific.

The death camps were a practical end result of how much manual labor was required to line thousands of people up and shoot them dead. That’s what they were doing in Poland, to such extremes that is was literally more efficient to build gas chambers.

They wouldn't struggle, even before the gassing systems were built. In Babiy Jar (September 1941), about 33 thousand Jews from Kyiv were shot in two days by SS Einsatztruppen.

This is about what dedicated murderous goverments can pull off using conventional means.

that's because they weren't shooting crowds already assembled in the streets and going into hospitals nationwide to find the injured. Nazi Germany was aiming to maintain plausible deniability in the concentration camps for as long as possible, while parallel competing plans for what to do with the population were being explored and failing. (there were other solutions before and alonside the final solution)

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