Subtlety and Assassination are both damage dealing specs, so which is better for PvE endgame? This guide analyzes the latest simulation data for Shadowlands patch 9.1 to see how they stack up against eachother.
We favor simulated data as using simc we can average out results from thousands of fights to get a feel for how each spec performs all of the time in various scenarios.
While the above highlights the DPS advantages between Assassination and Subtlety Rogues, the DPS potential shouldn't be the only factor in your decision. Ultimately, you should also consider the playstyle that you enjoy most while crushing it in Mythics+ and Raids!
You can check out the following resources, like spec guides for getting up and running in no time, or DPS rankings to see the latest best specs.