title: XNA Window Scaling Performance
body: <p>In my XNA game, I program and design the entire thing for 1920x1080 resolution and then scale scale and letterbox to fit the running system (XBox or PC).</p>
  
  <p>This has been a great solution as it allows me to only ever worry about one resolution.</p>
  
  <p>However, I'm now wondering if this will come back to bite me in the future as the game becomes more complex.</p>
  
  <p>Since I'm having to scale everything with every draw (I scale SpriteBatch.Begin() with the scale factor only once, do all drawing, then call End()), is this going to have any detrimental effect on performance?  I know the XBox already does this for XNA games for you when set to 720p natively (which, I actually am when running on XBox, it just gets the appropriate scaling factor).... so I can't imagine it's too bad, even for the PC.</p>