diff --git a/tests/d3d12.c b/tests/d3d12.c
index 329602378..dabed44cf 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -5669,10 +5669,6 @@ static void test_clear_unordered_access_view_buffer(void)
 
         {DXGI_FORMAT_R11G11B10_FLOAT, { 0, BUFFER_SIZE / sizeof(uint32_t), 0, 0, D3D12_BUFFER_UAV_FLAG_NONE},
                 {0, 0, 0, 0}, 0},
-        {DXGI_FORMAT_R11G11B10_FLOAT, { 0, BUFFER_SIZE / sizeof(uint32_t), 0, 0, D3D12_BUFFER_UAV_FLAG_NONE},
-                {0x7ff, 0x7ff, 0x3ff, 0}, 0xffffffff},
-        {DXGI_FORMAT_R11G11B10_FLOAT, { 0, BUFFER_SIZE / sizeof(uint32_t), 0, 0, D3D12_BUFFER_UAV_FLAG_NONE},
-                {0x7ff, 0, 0x3ff, 0}, 0xffc007ff},
         {DXGI_FORMAT_R11G11B10_FLOAT, { 0, BUFFER_SIZE / sizeof(uint32_t), 0, 0, D3D12_BUFFER_UAV_FLAG_NONE},
                 {0x3f000000 /* 0.5f */, 0x3f800000 /* 1.0f */, 0x40000000 /* 2.0f */, 0}, 0x801e0380, true},
         {DXGI_FORMAT_R11G11B10_FLOAT, { 0, BUFFER_SIZE / sizeof(uint32_t), 0, 0, D3D12_BUFFER_UAV_FLAG_NONE},
@@ -5905,7 +5901,12 @@ static void test_clear_unordered_access_view_image(void)
         {DXGI_FORMAT_R16G16_FLOAT,    1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 4}, 0x00020001},
         {DXGI_FORMAT_R8G8B8A8_UINT,   1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 4}, 0x04030201},
         {DXGI_FORMAT_R8G8B8A8_UNORM,  1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 4}, 0x04030201},
-        {DXGI_FORMAT_R11G11B10_FLOAT, 1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 4}, 0x00c01001},
+        /* Implementations have completely different behaviours here: AMD and
+         * WARP just shift the inputs in the bitfields, NVIDIA interprets them
+         * as floating-point numbers and converts them to the
+         * partial-precision target formats. We retain the test to exercise
+         * the code path, but there is no meaningful semantic to check. */
+        {DXGI_FORMAT_R11G11B10_FLOAT, 1, 1, 0, 0, 1, 0, {}, {0,       0, 0, 0}, 0x00000000},
         {DXGI_FORMAT_B5G6R5_UNORM,    1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 4}, 0x00000843, false, false, true},
         {DXGI_FORMAT_B5G5R5A1_UNORM,  1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 1}, 0x00008443, false, false, true},
         {DXGI_FORMAT_B4G4R4A4_UNORM,  1, 1, 0, 0, 1, 0, {}, {1,       2, 3, 1}, 0x00001123, false, false, true},