Vector2 vs Vector3 performance?

Questions & Answers
1

the answer to this is probably pretty obvious but would it be a better idea to use vector 2 instead of vector 3 if you aren’t going to alter the z axis? as in would it result in a lower performance cost?

3

I think This might help. The general theme is the same, concepts remain the same even if implementation is different (XNA V2, Unity3d V2, etc)

2

try instantiating a Vector2 and performing some operations in a loop, wrapped in a System.Diagnostics.Stopwatch

Then do the same with a Vector3 and compare results

using System.Diagnostics;
// ...

Stopwatch sw = new Stopwatch();

sw.Start();

// ...

sw.Stop();

Console.WriteLine("Elapsed={0}", sw.Elapsed);