CPM (Cost Per Mille) and RPM (Revenue Per Mille) are both metrics used in advertising, but they measure different aspects of the ad performance:
CPM (Cost Per Mille): CPM represents the cost an advertiser pays for every one thousand ad impressions. It is a measure of the cost of reaching a thousand users with an ad. CPM is often used by advertisers to calculate the cost-effectiveness of their campaigns and compare the prices of different advertising options.
RPM (Revenue Per Mille): RPM, on the other hand, measures the revenue generated per one thousand ad impressions for the publisher or content creator. It indicates how much money the publisher is earning for every thousand views or impressions of ads on their platform or website.
In summary, CPM is a metric used by advertisers to determine the cost of reaching a specific number of viewers, while RPM is a metric used by publishers to assess their revenue generation per thousand ad impressions.