diff --git a/collections-lists/ArrayListVsList/ArrayListVsList.sln b/collections-lists/ArrayListVsList/ArrayListVsList.sln
index 4a8718638..24680e4f7 100644
--- a/collections-lists/ArrayListVsList/ArrayListVsList.sln
+++ b/collections-lists/ArrayListVsList/ArrayListVsList.sln
@@ -7,20 +7,54 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ArrayListVsList", "ArrayLis
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "Tests\Tests.csproj", "{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Benchmarks", "Benchmarks\Benchmarks.csproj", "{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
 		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{844DACC5-2552-4136-8EE4-EC215A721884}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{844DACC5-2552-4136-8EE4-EC215A721884}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Debug|x64.Build.0 = Debug|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Debug|x86.Build.0 = Debug|Any CPU
 		{844DACC5-2552-4136-8EE4-EC215A721884}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{844DACC5-2552-4136-8EE4-EC215A721884}.Release|Any CPU.Build.0 = Release|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Release|x64.ActiveCfg = Release|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Release|x64.Build.0 = Release|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Release|x86.ActiveCfg = Release|Any CPU
+		{844DACC5-2552-4136-8EE4-EC215A721884}.Release|x86.Build.0 = Release|Any CPU
 		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Debug|x64.Build.0 = Debug|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Debug|x86.Build.0 = Debug|Any CPU
 		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Release|x64.ActiveCfg = Release|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Release|x64.Build.0 = Release|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Release|x86.ActiveCfg = Release|Any CPU
+		{4B4BE163-4AD2-4848-AAD5-AB2C0A5F4F95}.Release|x86.Build.0 = Release|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Debug|x64.Build.0 = Debug|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Debug|x86.Build.0 = Debug|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Release|x64.ActiveCfg = Release|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Release|x64.Build.0 = Release|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Release|x86.ActiveCfg = Release|Any CPU
+		{FB7AABD4-ABF9-4D94-AD26-61A0DE6EA773}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/collections-lists/ArrayListVsList/Benchmarks/Benchmarks.csproj b/collections-lists/ArrayListVsList/Benchmarks/Benchmarks.csproj
new file mode 100644
index 000000000..f1f8bf88d
--- /dev/null
+++ b/collections-lists/ArrayListVsList/Benchmarks/Benchmarks.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="BenchmarkDotNet" Version="0.15.4" />
+  </ItemGroup>
+
+</Project>
diff --git a/collections-lists/ArrayListVsList/Benchmarks/BoxingBenchmark.cs b/collections-lists/ArrayListVsList/Benchmarks/BoxingBenchmark.cs
new file mode 100644
index 000000000..628e11119
--- /dev/null
+++ b/collections-lists/ArrayListVsList/Benchmarks/BoxingBenchmark.cs
@@ -0,0 +1,99 @@
+using System.Collections;
+using BenchmarkDotNet.Attributes;
+
+namespace BoxingBench;
+
+// Measures the one claim the article argues from mechanism: List is faster than ArrayList
+// because it does not box, so the effect is large for value types and small for reference types.
+// Both collections are created with the final capacity, so the only allocation difference left
+// is the boxing itself.
+[MemoryDiagnoser]
+public class BoxingBenchmark
+{
+    private const int N = 1000;
+
+    private static readonly string[] Words = CreateWords();
+
+    private static string[] CreateWords()
+    {
+        var words = new string[N];
+        for (var i = 0; i < N; i++)
+        {
+            words[i] = "item-" + i;
+        }
+
+        return words;
+    }
+
+    [Benchmark(Description = "ArrayList, 1000 int")]
+    public int ArrayListOfInt()
+    {
+        var collection = new ArrayList(N);
+        for (var i = 0; i < N; i++)
+        {
+            collection.Add(i);
+        }
+
+        var sum = 0;
+        foreach (var item in collection)
+        {
+            sum += (int)item!;
+        }
+
+        return sum;
+    }
+
+    [Benchmark(Description = "List, 1000 int")]
+    public int ListOfInt()
+    {
+        var collection = new List<int>(N);
+        for (var i = 0; i < N; i++)
+        {
+            collection.Add(i);
+        }
+
+        var sum = 0;
+        foreach (var item in collection)
+        {
+            sum += item;
+        }
+
+        return sum;
+    }
+
+    [Benchmark(Description = "ArrayList, 1000 string")]
+    public int ArrayListOfString()
+    {
+        var collection = new ArrayList(N);
+        for (var i = 0; i < N; i++)
+        {
+            collection.Add(Words[i]);
+        }
+
+        var total = 0;
+        foreach (var item in collection)
+        {
+            total += ((string)item!).Length;
+        }
+
+        return total;
+    }
+
+    [Benchmark(Description = "List, 1000 string")]
+    public int ListOfString()
+    {
+        var collection = new List<string>(N);
+        for (var i = 0; i < N; i++)
+        {
+            collection.Add(Words[i]);
+        }
+
+        var total = 0;
+        foreach (var item in collection)
+        {
+            total += item.Length;
+        }
+
+        return total;
+    }
+}
diff --git a/collections-lists/ArrayListVsList/Benchmarks/Program.cs b/collections-lists/ArrayListVsList/Benchmarks/Program.cs
new file mode 100644
index 000000000..689c711d9
--- /dev/null
+++ b/collections-lists/ArrayListVsList/Benchmarks/Program.cs
@@ -0,0 +1,4 @@
+using BenchmarkDotNet.Running;
+using BoxingBench;
+
+BenchmarkRunner.Run<BoxingBenchmark>();