diff --git a/src/dxvk/dxvk_constant_state.h b/src/dxvk/dxvk_constant_state.h
index 70e76e1e5..8ca573d0d 100644
--- a/src/dxvk/dxvk_constant_state.h
+++ b/src/dxvk/dxvk_constant_state.h
@@ -16,6 +16,16 @@ namespace dxvk {
    */
   struct DxvkBlendConstants {
     float r, g, b, a;
+
+    bool operator == (const DxvkBlendConstants& other) const {
+      return this->r == other.r && this->g == other.g
+          && this->b == other.b && this->a == other.a;
+    }
+
+    bool operator != (const DxvkBlendConstants& other) const {
+      return this->r != other.r || this->g != other.g
+          || this->b != other.b || this->a != other.a;
+    }
   };
   
   
diff --git a/src/dxvk/dxvk_context.cpp b/src/dxvk/dxvk_context.cpp
index 86b74fa74..4b4dc9c66 100644
--- a/src/dxvk/dxvk_context.cpp
+++ b/src/dxvk/dxvk_context.cpp
@@ -1406,15 +1406,19 @@ namespace dxvk {
   
   void DxvkContext::setBlendConstants(
     const DxvkBlendConstants&   blendConstants) {
-    m_state.om.blendConstants = blendConstants;
-    m_flags.set(DxvkContextFlag::GpDirtyBlendConstants);
+    if (m_state.om.blendConstants != blendConstants) {
+      m_state.om.blendConstants = blendConstants;
+      m_flags.set(DxvkContextFlag::GpDirtyBlendConstants);
+    }
   }
   
   
   void DxvkContext::setStencilReference(
     const uint32_t            reference) {
-    m_state.om.stencilReference = reference;
-    m_flags.set(DxvkContextFlag::GpDirtyStencilRef);
+    if (m_state.om.stencilReference != reference) {
+      m_state.om.stencilReference = reference;
+      m_flags.set(DxvkContextFlag::GpDirtyStencilRef);
+    }
   }