List<T> Any vs Exists vs Contains

Benchmark.cs

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;

[HtmlExporter]
public class LINQBenchmarks
{
	[Params(10_000, 100_000, 1_000_000, 10_000_000)]
	public int N;
	private List<string> list { get; set; } = new List<string>();
	
	[GlobalSetup]
	public void GlobalSetup()
	{
		Random r = new Random();

		for (int i = 0; i < N; i++)
		{
			int it = r.Next(0, 100);
			list.Add(new string('0', it));
		}
		list.Add("0123456789012");
	}

	[Benchmark]
	public bool Any()
	{
		return list.Any(o => o == "0123456789012");
	}

	[Benchmark]
	public bool Exists()
    {
		return list.Exists(o => o == "0123456789012");
	}

	[Benchmark]
	public bool Contains()
	{
		return list.Contains("0123456789012");
	}
}

public class Program
{
	public static void Main(string[] args)
	{
		var summary = BenchmarkRunner.Run(typeof(Program).Assembly);
	}
}

Results.md

BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.1645 (21H2)
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET SDK=6.0.201
  [Host]     : .NET 6.0.4 (6.0.422.16404), X64 RyuJIT
  DefaultJob : .NET 6.0.4 (6.0.422.16404), X64 RyuJIT

Method	N	Mean	Error	StdDev
Any	10000	118.93 μs	1.272 μs	1.190 μs
Exists	10000	26.74 μs	0.241 μs	0.226 μs
Contains	10000	27.60 μs	0.202 μs	0.189 μs
Any	100000	1,205.88 μs	22.752 μs	24.344 μs
Exists	100000	298.77 μs	5.601 μs	6.226 μs
Contains	100000	319.28 μs	6.345 μs	15.564 μs
Any	1000000	13,208.13 μs	236.847 μs	339.679 μs
Exists	1000000	8,192.19 μs	84.736 μs	70.758 μs
Contains	1000000	8,295.04 μs	144.080 μs	201.980 μs
Any	10000000	131,926.95 μs	2,610.394 μs	3,006.134 μs
Exists	10000000	89,094.71 μs	1,732.868 μs	2,313.329 μs
Contains	10000000	88,575.13 μs	1,595.753 μs	2,184.285 μs

The results of this benchmark show that List<T>.Exists and List<T>.Contains are both faster than List<T>.Any.