Compare a += b with a = a + b

ComparePlusEqualWithEqualPlus.cs

using System;
using System.Diagnostics;

class Program
{
    static void Main(string[] args)
    {
        int a = 0;
        int b = 1;
        Stopwatch sw = new Stopwatch();
        sw.Start();
        for (int i = 0; i < 100000000; i++)
        {
            a += b;
            // a = a + b;
        }

        Console.WriteLine(sw.Elapsed);
    }
}