diff --git a/pcsx2/GS/Renderers/HW/GSTextureReplacements.cpp b/pcsx2/GS/Renderers/HW/GSTextureReplacements.cpp
index 0accf065cf..2592c56547 100644
--- a/pcsx2/GS/Renderers/HW/GSTextureReplacements.cpp
+++ b/pcsx2/GS/Renderers/HW/GSTextureReplacements.cpp
@@ -117,6 +117,8 @@ namespace GSTextureReplacements
 	static std::optional<TextureName> ParseReplacementName(const std::string& filename);
 	static std::string GetGameTextureDirectory();
 	static std::string GetDumpFilename(const TextureName& name, u32 level);
+	template <GSTexture::Format format>
+	std::pair<u8, u8> GetBCAlphaMinMax(ReplacementTexture& rtex);
 	static void SetReplacementTextureAlphaMinMax(ReplacementTexture& rtex);
 	static std::optional<ReplacementTexture> LoadReplacementTexture(const TextureName& name, const std::string& filename, bool only_base_image);
 	static void QueueAsyncReplacementTextureLoad(const TextureName& name, const std::string& filename, bool mipmap, bool cache_only);
@@ -485,61 +487,80 @@ GSTexture* GSTextureReplacements::LookupReplacementTexture(const GSTextureCache:
 	}
 }
 
-void GSTextureReplacements::SetReplacementTextureAlphaMinMax(ReplacementTexture& rtex)
+template <GSTexture::Format format>
+std::pair<u8, u8> GSTextureReplacements::GetBCAlphaMinMax(ReplacementTexture& rtex)
 {
-	if (rtex.format >= GSTexture::Format::BC1 && rtex.format <= GSTexture::Format::BC7)
+	constexpr u32 BC_BLOCK_SIZE = 4;
+	constexpr u32 BC_BLOCK_BYTES = (format == GSTexture::Format::BC1) ? 8 : 16;
+
+	const u32 blocks_wide = (rtex.width + (BC_BLOCK_SIZE - 1)) / BC_BLOCK_SIZE;
+	const u32 blocks_high = (rtex.height + (BC_BLOCK_SIZE - 1)) / BC_BLOCK_SIZE;
+
+	GSVector4i minc = GSVector4i::xffffffff();
+	GSVector4i maxc = GSVector4i::zero();
+
+	for (u32 y = 0; y < blocks_high; y++)
 	{
-		constexpr u32 BC_BLOCK_SIZE = 4;
-		constexpr u32 BC_BLOCK_BYTES = 16;
+		const u8* block_in = rtex.data.data() + y * rtex.pitch;
+		alignas(16) u8 block_pixels_out[BC_BLOCK_SIZE * BC_BLOCK_SIZE * sizeof(u32)];
 
-		const u32 blocks_wide = (rtex.width + (BC_BLOCK_SIZE - 1)) / BC_BLOCK_SIZE;
-		const u32 blocks_high = (rtex.height + (BC_BLOCK_SIZE - 1)) / BC_BLOCK_SIZE;
-
-		GSVector4i minc = GSVector4i::xffffffff();
-		GSVector4i maxc = GSVector4i::zero();
-
-		for (u32 y = 0; y < blocks_high; y++)
+		for (u32 x = 0; x < blocks_wide; x++, block_in += BC_BLOCK_BYTES)
 		{
-			const u8* block_in = rtex.data.data() + y * rtex.pitch;
-			alignas(16) u8 block_pixels_out[BC_BLOCK_SIZE * BC_BLOCK_SIZE * sizeof(u32)];
-
-			for (u32 x = 0; x < blocks_wide; x++, block_in += BC_BLOCK_BYTES)
+			switch (format)
 			{
-				switch (rtex.format)
-				{
-					case GSTexture::Format::BC1:
-						DecompressBlockBC1(0, 0, sizeof(u32) * BC_BLOCK_SIZE, block_in, block_pixels_out);
-						break;
-					case GSTexture::Format::BC2:
-						DecompressBlockBC2(0, 0, sizeof(u32) * BC_BLOCK_SIZE, block_in, block_pixels_out);
-						break;
-					case GSTexture::Format::BC3:
-						DecompressBlockBC3(0, 0, sizeof(u32) * BC_BLOCK_SIZE, block_in, block_pixels_out);
-						break;
+				case GSTexture::Format::BC1:
+					DecompressBlockBC1(0, 0, sizeof(u32) * BC_BLOCK_SIZE, block_in, block_pixels_out);
+					break;
+				case GSTexture::Format::BC2:
+					DecompressBlockBC2(0, 0, sizeof(u32) * BC_BLOCK_SIZE, block_in, block_pixels_out);
+					break;
+				case GSTexture::Format::BC3:
+					DecompressBlockBC3(0, 0, sizeof(u32) * BC_BLOCK_SIZE, block_in, block_pixels_out);
+					break;
 
-					case GSTexture::Format::BC7:
-						bc7decomp::unpack_bc7(block_in, reinterpret_cast<bc7decomp::color_rgba*>(block_pixels_out));
-						break;
-				}
+				case GSTexture::Format::BC7:
+					bc7decomp::unpack_bc7(block_in, reinterpret_cast<bc7decomp::color_rgba*>(block_pixels_out));
+					break;
+			}
 
-				const u8* out_ptr = block_pixels_out;
-				for (u32 i = 0; i < ((BC_BLOCK_SIZE * BC_BLOCK_SIZE * sizeof(u32)) / sizeof(GSVector4i)); i++)
-				{
-					const GSVector4i v = GSVector4i::load<true>(out_ptr);
-					out_ptr += sizeof(GSVector4i);
-					minc = minc.min_u32(v);
-					maxc = maxc.max_u32(v);
-				}
+			const u8* out_ptr = block_pixels_out;
+			for (u32 i = 0; i < ((BC_BLOCK_SIZE * BC_BLOCK_SIZE * sizeof(u32)) / sizeof(GSVector4i)); i++)
+			{
+				const GSVector4i v = GSVector4i::load<true>(out_ptr);
+				out_ptr += sizeof(GSVector4i);
+				minc = minc.min_u32(v);
+				maxc = maxc.max_u32(v);
 			}
 		}
-
-		rtex.alpha_minmax =
-			std::make_pair<u8, u8>(static_cast<u8>(minc.minv_u32() >> 24), static_cast<u8>(maxc.maxv_u32() >> 24));
 	}
-	else
+
+	return std::make_pair<u8, u8>(static_cast<u8>(minc.minv_u32() >> 24), static_cast<u8>(maxc.maxv_u32() >> 24));
+}
+
+void GSTextureReplacements::SetReplacementTextureAlphaMinMax(ReplacementTexture& rtex)
+{
+	switch (rtex.format)
 	{
-		pxAssert(rtex.format == GSTexture::Format::Color);
-		rtex.alpha_minmax = GSGetRGBA8AlphaMinMax(rtex.data.data(), rtex.width, rtex.height, rtex.pitch);
+		case GSTexture::Format::BC1:
+			rtex.alpha_minmax = GetBCAlphaMinMax<GSTexture::Format::BC1>(rtex);
+			break;
+
+		case GSTexture::Format::BC2:
+			rtex.alpha_minmax = GetBCAlphaMinMax<GSTexture::Format::BC2>(rtex);
+			break;
+
+		case GSTexture::Format::BC3:
+			rtex.alpha_minmax = GetBCAlphaMinMax<GSTexture::Format::BC3>(rtex);
+			break;
+
+		case GSTexture::Format::BC7:
+			rtex.alpha_minmax = GetBCAlphaMinMax<GSTexture::Format::BC7>(rtex);
+			break;
+
+		default:
+			pxAssert(rtex.format == GSTexture::Format::Color);
+			rtex.alpha_minmax = GSGetRGBA8AlphaMinMax(rtex.data.data(), rtex.width, rtex.height, rtex.pitch);
+			break;
 	}
 }