diff --git a/src/BizHawk.Emulation.Cores/Computers/DOS/DOSBox.cs b/src/BizHawk.Emulation.Cores/Computers/DOS/DOSBox.cs
index 7fd0151f23..33a48e4745 100644
--- a/src/BizHawk.Emulation.Cores/Computers/DOS/DOSBox.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/DOS/DOSBox.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
@@ -41,6 +42,11 @@ namespace BizHawk.Emulation.Cores.Computers.DOS
 		private int _floppyDiskCount = 0;
 		private int _currentFloppyDisk = 0;
 		private int _currentCDROM = 0;
+
+		// VGA Refresh rate info
+		private ulong _VGARefreshRateNumerator = LibDOSBox.VIDEO_NUMERATOR_DOS;
+		private ulong _VGARefreshRateDenominator = LibDOSBox.VIDEO_DENOMINATOR_DOS;
+
 		private string GetFullName(IRomAsset rom) => rom.Game.Name + rom.Extension;
 
 		public override int VirtualWidth => BufferHeight * 4 / 3;
@@ -442,6 +448,21 @@ namespace BizHawk.Emulation.Cores.Computers.DOS
 		protected override void FrameAdvancePost()
 		{
 			DriveLightOn = _libDOSBox.getDriveActivityFlag();
+
+			// Checking on VGA refresh rate updates
+			var currentVGARefreshRateNumerator = _VGARefreshRateNumerator;
+			var currentVGARefreshRateDenominator = _VGARefreshRateDenominator;
+
+			_VGARefreshRateNumerator = _libDOSBox.getVGARefreshRateNumerator();
+			_VGARefreshRateDenominator = _libDOSBox.getVGARefreshRateDenominator();
+
+			// If it changed, notify now
+			if (currentVGARefreshRateNumerator != _VGARefreshRateNumerator || currentVGARefreshRateDenominator != _VGARefreshRateDenominator)
+			{
+				double newVGARefreshRate = (double) _VGARefreshRateNumerator / _VGARefreshRateDenominator;
+				CoreComm.Notify($"VGA Refresh Rate changed to: {_VGARefreshRateNumerator} / {_VGARefreshRateDenominator} = {newVGARefreshRate} Hz", null);
+				Console.WriteLine($"VGA Refresh Rate changed to: {_VGARefreshRateNumerator} / {_VGARefreshRateDenominator} = {newVGARefreshRate} Hz", null);
+			}
 		}
 
 		protected override void SaveStateBinaryInternal(BinaryWriter writer)
diff --git a/src/BizHawk.Emulation.Cores/Computers/DOS/LibDOSBox.cs b/src/BizHawk.Emulation.Cores/Computers/DOS/LibDOSBox.cs
index 8345928ccb..ebfa6f6ddc 100644
--- a/src/BizHawk.Emulation.Cores/Computers/DOS/LibDOSBox.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/DOS/LibDOSBox.cs
@@ -58,6 +58,12 @@ namespace BizHawk.Emulation.Cores.Computers.DOS
 		[BizImport(CC)]
 		public abstract void pushTrackData(int cdIdx, int trackId, CDTrack data);
 
+		[BizImport(CC)]
+		public abstract ulong getVGARefreshRateNumerator();
+
+		[BizImport(CC)]
+		public abstract ulong getVGARefreshRateDenominator();
+
 		[StructLayout(LayoutKind.Sequential)]
 		public class InitSettings
 		{
@@ -89,6 +95,8 @@ namespace BizHawk.Emulation.Cores.Computers.DOS
 			public JoystickButtons joystick1;
 			public JoystickButtons joystick2;
 			public MouseInput mouse;
+			public ulong vgaRefreshRateNumerator;
+			public ulong vgaRefreshRateDenominator;
 		}
 
 		[StructLayout(LayoutKind.Sequential)]