diff --git a/GPU/Common/TextureCacheCommon.cpp b/GPU/Common/TextureCacheCommon.cpp
index 668db2a130..1fedfa67d3 100644
--- a/GPU/Common/TextureCacheCommon.cpp
+++ b/GPU/Common/TextureCacheCommon.cpp
@@ -146,19 +146,18 @@ static int TexLog2(float delta) {
 	return useful - 127 * 256;
 }
 
-void TextureCacheCommon::GetSamplingParams(int &minFilt, int &magFilt, bool &sClamp, bool &tClamp, float &lodBias, int maxLevel, u32 addr, GETexLevelMode &mode) {
-	minFilt = gstate.texfilter & 0x7;
-	magFilt = gstate.isMagnifyFilteringEnabled();
-	sClamp = gstate.isTexCoordClampedS();
-	tClamp = gstate.isTexCoordClampedT();
+void TextureCacheCommon::UpdateSamplingParams(int maxLevel, u32 texAddr, SamplerCacheKey &key) {
+	int minFilt = gstate.texfilter & 0x7;
+	int magFilt = gstate.isMagnifyFilteringEnabled();
+	bool sClamp = gstate.isTexCoordClampedS();
+	bool tClamp = gstate.isTexCoordClampedT();
 
 	GETexLevelMode mipMode = gstate.getTexLevelMode();
-	mode = mipMode;
 
 	bool autoMip = mipMode == GE_TEXLEVEL_MODE_AUTO;
 
 	// TODO: Slope mipmap bias is still not well understood.
-	lodBias = (float)gstate.getTexLevelOffset16() * (1.0f / 16.0f);
+	float lodBias = (float)gstate.getTexLevelOffset16() * (1.0f / 16.0f);
 	if (mipMode == GE_TEXLEVEL_MODE_SLOPE) {
 		lodBias += 1.0f + TexLog2(gstate.getTextureLodSlope()) * (1.0f / 256.0f);
 	}
@@ -175,8 +174,8 @@ void TextureCacheCommon::GetSamplingParams(int &minFilt, int &magFilt, bool &sCl
 		lodBias = 0.0f;
 	}
 
-	if (!(magFilt & 1) && addr != 0 && g_Config.iTexFiltering != TEX_FILTER_FORCE_NEAREST) {
-		if (videos_.find(addr & 0x3FFFFFFF) != videos_.end()) {
+	if (!(magFilt & 1) && texAddr != 0 && g_Config.iTexFiltering != TEX_FILTER_FORCE_NEAREST) {
+		if (videos_.find(texAddr & 0x3FFFFFFF) != videos_.end()) {
 			// Enforce bilinear filtering on magnification.
 			magFilt |= 1;
 		}
@@ -211,18 +210,7 @@ void TextureCacheCommon::GetSamplingParams(int &minFilt, int &magFilt, bool &sCl
 		minFilt &= ~1;
 		break;
 	}
-}
 
-void TextureCacheCommon::UpdateSamplingParams(int maxLevel, u32 texAddr, SamplerCacheKey &key) {
-	// TODO: Make GetSamplingParams write SamplerCacheKey directly
-	int minFilt;
-	int magFilt;
-	bool sClamp;
-	bool tClamp;
-	float lodBias;
-	GETexLevelMode mode;
-
-	GetSamplingParams(minFilt, magFilt, sClamp, tClamp, lodBias, maxLevel, texAddr, mode);
 	key.minFilt = minFilt & 1;
 	key.mipEnable = (minFilt >> 2) & 1;
 	key.mipFilt = (minFilt >> 1) & 1;
@@ -235,8 +223,9 @@ void TextureCacheCommon::UpdateSamplingParams(int maxLevel, u32 texAddr, Sampler
 		key.maxLevel = 0;
 		key.minLevel = 0;
 		key.lodBias = 0;
+		key.mipFilt = 0;
 	} else {
-		switch (mode) {
+		switch (mipMode) {
 		case GE_TEXLEVEL_MODE_AUTO:
 			key.maxLevel = maxLevel * 256;
 			key.minLevel = 0;
diff --git a/GPU/D3D11/TextureCacheD3D11.cpp b/GPU/D3D11/TextureCacheD3D11.cpp
index 8e4b72b338..717a4b8119 100644
--- a/GPU/D3D11/TextureCacheD3D11.cpp
+++ b/GPU/D3D11/TextureCacheD3D11.cpp
@@ -159,6 +159,7 @@ void TextureCacheD3D11::InvalidateLastTexture(TexCacheEntry *entry) {
 void TextureCacheD3D11::SetFramebufferSamplingParams(u16 bufferWidth, u16 bufferHeight, SamplerCacheKey &key) {
 	UpdateSamplingParams(0, 0, key);
 
+	key.mipEnable = false;
 	key.minFilt &= 1;
 	key.mipFilt = 0;
 	key.magFilt &= 1;
diff --git a/GPU/Directx9/TextureCacheDX9.cpp b/GPU/Directx9/TextureCacheDX9.cpp
index 89b294b763..16272c3b84 100644
--- a/GPU/Directx9/TextureCacheDX9.cpp
+++ b/GPU/Directx9/TextureCacheDX9.cpp
@@ -119,37 +119,15 @@ D3DFORMAT getClutDestFormat(GEPaletteFormat format) {
 	return D3DFMT_A8R8G8B8;
 }
 
-static const u8 MinFilt[8] = {
-	D3DTEXF_POINT,
-	D3DTEXF_LINEAR,
-	D3DTEXF_POINT,
-	D3DTEXF_LINEAR,
-	D3DTEXF_POINT,	// GL_NEAREST_MIPMAP_NEAREST,
-	D3DTEXF_LINEAR,	// GL_LINEAR_MIPMAP_NEAREST,
-	D3DTEXF_POINT,	// GL_NEAREST_MIPMAP_LINEAR,
-	D3DTEXF_LINEAR,	// GL_LINEAR_MIPMAP_LINEAR,
-};
-
-static const u8 MipFilt[8] = {
-	D3DTEXF_NONE,
-	D3DTEXF_NONE,
-	D3DTEXF_NONE,
-	D3DTEXF_NONE,
-	D3DTEXF_POINT,	// GL_NEAREST_MIPMAP_NEAREST,
-	D3DTEXF_POINT,	// GL_LINEAR_MIPMAP_NEAREST,
-	D3DTEXF_LINEAR,	// GL_NEAREST_MIPMAP_LINEAR,
-	D3DTEXF_LINEAR,	// GL_LINEAR_MIPMAP_LINEAR,
-};
-
-static const u8 MagFilt[2] = {
-	D3DTEXF_POINT,
-	D3DTEXF_LINEAR
-};
-
 void TextureCacheDX9::SetFramebufferSamplingParams(u16 bufferWidth, u16 bufferHeight) {
 	SamplerCacheKey key;
 	UpdateSamplingParams(0, 0, key);
 
+	key.mipEnable = false;
+	key.minFilt &= 1;
+	key.mipFilt = 0;
+	key.magFilt &= 1;
+
 	// Often the framebuffer will not match the texture size. We'll wrap/clamp in the shader in that case.
 	int w = gstate.getTextureWidth(0);
 	int h = gstate.getTextureHeight(0);
@@ -165,8 +143,17 @@ void TextureCacheDX9::ApplySamplingParams(const SamplerCacheKey &key) {
 	dxstate.texMinFilter.set(key.minFilt ? D3DTEXF_LINEAR : D3DTEXF_POINT);
 	dxstate.texMipFilter.set(key.mipFilt ? D3DTEXF_LINEAR : D3DTEXF_POINT);
 	dxstate.texMagFilter.set(key.magFilt ? D3DTEXF_LINEAR : D3DTEXF_POINT);
-	dxstate.texMipLodBias.set((float)key.lodBias / 256.0f);
-	dxstate.texMaxMipLevel.set(key.maxLevel / 256);
+
+	// DX9 mip levels are .. odd. The "max level" sets the LARGEST mip to use.
+	// We can enforce only the top mip level by setting a massive negative lod bias.
+
+	if (!key.mipEnable) {
+		dxstate.texMaxMipLevel.set(0);
+		dxstate.texMipLodBias.set(-100.0f);
+	} else {
+		dxstate.texMipLodBias.set((float)key.lodBias / 256.0f);
+		dxstate.texMaxMipLevel.set(key.minLevel / 256);
+	}
 
 	dxstate.texAddressU.set(key.sClamp ? D3DTADDRESS_CLAMP : D3DTADDRESS_WRAP);
 	dxstate.texAddressV.set(key.tClamp ? D3DTADDRESS_CLAMP : D3DTADDRESS_WRAP);
diff --git a/GPU/Vulkan/TextureCacheVulkan.cpp b/GPU/Vulkan/TextureCacheVulkan.cpp
index 0b3fa58544..6ecd34e419 100644
--- a/GPU/Vulkan/TextureCacheVulkan.cpp
+++ b/GPU/Vulkan/TextureCacheVulkan.cpp
@@ -442,6 +442,7 @@ static const VkFilter MagFiltVK[2] = {
 void TextureCacheVulkan::SetFramebufferSamplingParams(u16 bufferWidth, u16 bufferHeight, SamplerCacheKey &key) {
 	UpdateSamplingParams(0, 0, key);
 
+	key.mipEnable = false;
 	key.minFilt &= 1;
 	key.mipFilt = 0;
 	key.magFilt &= 1;