diff --git a/src/gallium/drivers/d3d12/d3d12_video_enc.cpp b/src/gallium/drivers/d3d12/d3d12_video_enc.cpp
index 9865398e679..9250bd21b34 100644
--- a/src/gallium/drivers/d3d12/d3d12_video_enc.cpp
+++ b/src/gallium/drivers/d3d12/d3d12_video_enc.cpp
@@ -971,9 +971,8 @@ d3d12_video_encoder_reconfigure_encoder_objects(struct d3d12_video_encoder *pD3D
       }
 
       HRESULT hr = S_OK;
-      ComPtr<ID3D12VideoDevice4> spVideoDevice4;
-      if (SUCCEEDED(pD3D12Enc->m_spD3D12VideoDevice->QueryInterface(
-          IID_PPV_ARGS(spVideoDevice4.GetAddressOf()))))
+      // Use cached ID3D12VideoDevice4 interface if available
+      if (pD3D12Enc->m_spD3D12VideoDevice4)
       {
          D3D12_VIDEO_ENCODER_HEAP_FLAGS heapFlags = D3D12_VIDEO_ENCODER_HEAP_FLAG_NONE;
          if (pD3D12Enc->m_currentEncodeCapabilities.m_currentResolutionSupportCaps.DirtyRegions.DirtyRegionsSupportFlags) {
@@ -1018,7 +1017,7 @@ d3d12_video_encoder_reconfigure_encoder_objects(struct d3d12_video_encoder *pD3D
          // Create encoder heap
          pD3D12Enc->m_spVideoEncoderHeap.Reset();
          ComPtr<ID3D12VideoEncoderHeap1> spVideoEncoderHeap1;
-         hr = spVideoDevice4->CreateVideoEncoderHeap1(&heapDesc1,
+         hr = pD3D12Enc->m_spD3D12VideoDevice4->CreateVideoEncoderHeap1(&heapDesc1,
                                                               IID_PPV_ARGS(spVideoEncoderHeap1.GetAddressOf()));
          if (SUCCEEDED(hr))
          {
@@ -2554,6 +2553,11 @@ d3d12_video_encoder_create_encoder(struct pipe_context *context, const struct pi
       goto failed;
    }
 
+   // Cache ID3D12VideoDevice4 interface
+   pD3D12Enc->m_spD3D12VideoDevice->QueryInterface(
+      IID_PPV_ARGS(pD3D12Enc->m_spD3D12VideoDevice4.GetAddressOf()));
+   // Note: m_spD3D12VideoDevice4 may be nullptr if the interface is not supported
+
    pD3D12Enc->m_MaxOutputBitstreamSize = d3d12_video_encoder_calculate_max_output_compressed_bitstream_size(
       codec->width,
       codec->height,
diff --git a/src/gallium/drivers/d3d12/d3d12_video_enc.h b/src/gallium/drivers/d3d12/d3d12_video_enc.h
index d42740b4586..1cd9774c3dd 100644
--- a/src/gallium/drivers/d3d12/d3d12_video_enc.h
+++ b/src/gallium/drivers/d3d12/d3d12_video_enc.h
@@ -587,6 +587,7 @@ struct d3d12_video_encoder
    bool                m_bPendingWorkNotFlushed = false;
 
    ComPtr<ID3D12VideoDevice3>            m_spD3D12VideoDevice;
+   ComPtr<ID3D12VideoDevice4>            m_spD3D12VideoDevice4;
    ComPtr<ID3D12VideoEncoder>            m_spVideoEncoder;
    ComPtr<ID3D12VideoEncoderHeap>        m_spVideoEncoderHeap;
    ComPtr<ID3D12CommandQueue>            m_spEncodeCommandQueue;