diff --git a/inc/core/palScreen.h b/inc/core/palScreen.h
index f3d48ad2..849bf123 100644
--- a/inc/core/palScreen.h
+++ b/inc/core/palScreen.h
@@ -208,7 +208,7 @@ struct ScreenMode
 
     Extent2d       extent;       ///< Width and height of the resolution.
     SwizzledFormat format;       ///< Pixel format and channel swizzle of the display mode.
-    uint32         refreshRate;  ///< Refresh rate in Hz.
+    Rational       refreshRate;  ///< Refresh rate in Hz.
 };
 
 /// 3-component floating point vector describing the red, green, and blue channels of a color.
diff --git a/src/core/os/amdgpu/amdgpuDevice.cpp b/src/core/os/amdgpu/amdgpuDevice.cpp
index 6e1236f7..8ae36e69 100644
--- a/src/core/os/amdgpu/amdgpuDevice.cpp
+++ b/src/core/os/amdgpu/amdgpuDevice.cpp
@@ -5708,7 +5708,8 @@ Result Device::QueryScreenModesForConnector(
 
                 pScreenModeList[j].extent.width   = pMode->hdisplay;
                 pScreenModeList[j].extent.height  = pMode->vdisplay;
-                pScreenModeList[j].refreshRate    = pMode->vrefresh;
+                pScreenModeList[j].refreshRate.numerator   = pMode->clock * 1000;
+                pScreenModeList[j].refreshRate.denominator = pMode->htotal * pMode->vtotal;
                 pScreenModeList[j].flags.u32All   = 0;
             }