SimpleLambdaPerfTest.cs

using System;
using System.Diagnostics;

internal class Program
{
    public const int Range = 100000000;
    public const int Input = 2;

    private static void Main(string[] args)
    {
        var watch = new Stopwatch();

        // Method call
        watch.Start();

        for (int i = 0; i < Range; i++)
            SomeMethod(Input);

        watch.Stop();
        Console.WriteLine($"Method: {watch.ElapsedMilliseconds} ms");

        // Invoke anonymous function
        watch.Start();

        Func<int, int> fn = (x) => { return x + x; };
        for (int i = 0; i < Range; i++)
            fn.Invoke(Input);

        watch.Stop();
        Console.WriteLine($"Anonymous Function: {watch.ElapsedMilliseconds} ms");

        // Wait....
        Console.Read();
    }

    public static int SomeMethod(int x)
    {
        return x + x;
    }
}