diff --git a/plugins/GSdx/GLLoader.cpp b/plugins/GSdx/GLLoader.cpp
index d0a1d017a44e8..6d061944cec45 100644
--- a/plugins/GSdx/GLLoader.cpp
+++ b/plugins/GSdx/GLLoader.cpp
@@ -118,8 +118,6 @@ PFNGLMAKETEXTUREHANDLENONRESIDENTARBPROC gl_MakeTextureHandleNonResidentARB = NU
 PFNGLUNIFORMHANDLEUI64VARBPROC         gl_UniformHandleui64vARB             = NULL;
 PFNGLPROGRAMUNIFORMHANDLEUI64VARBPROC  gl_ProgramUniformHandleui64vARB      = NULL;
 
-PFNGLDEPTHRANGEDNVPROC                 gl_DepthRangedNV                     = NULL;
-
 // GL4.5
 PFNGLCREATETEXTURESPROC				   gl_CreateTextures                    = NULL;
 PFNGLTEXTURESTORAGE2DPROC			   gl_TextureStorage2D                  = NULL;
@@ -173,8 +171,6 @@ namespace GLLoader {
 	bool found_GL_ARB_shader_image_load_store = false; // GLES3.1
 	bool found_GL_ARB_shader_subroutine = false;
 	bool found_GL_ARB_bindless_texture = false; // GL5 GPU?
-	// Surely recent hardware
-	bool found_GL_NV_depth_buffer_float = false;
 
 	// GL4.5 for the future (dx10/dx11 compatibility)
 	bool found_GL_ARB_clip_control = false;
@@ -312,7 +308,9 @@ namespace GLLoader {
 #endif
 #ifdef GLBINDLESS // Need to debug the code first
 				if (ext.compare("GL_ARB_bindless_texture") == 0) found_GL_ARB_bindless_texture = true;
-#endif
+				// GL4.5
+				if (ext.compare("GL_ARB_direct_state_access") == 0) found_GL_ARB_direct_state_access = true;
+				if (ext.compare("GL_ARB_clip_control") == 0) found_GL_ARB_clip_control = true;
 
 #ifdef ENABLE_GLES
 				fprintf(stderr, "DEBUG ext: %s\n", ext.c_str());
@@ -343,7 +341,6 @@ namespace GLLoader {
 		status &= status_and_override(found_GL_ARB_multi_bind,"GL_ARB_multi_bind");
 		status &= status_and_override(found_GL_ARB_bindless_texture,"GL_ARB_bindless_texture");
 
-		status &= status_and_override(found_GL_NV_depth_buffer_float,"GL_NV_depth_buffer_float");
 
 		status &= status_and_override(found_GL_ARB_clip_control, "GL_ARB_clip_control");
 		// Mandatory extension in DSA mode
diff --git a/plugins/GSdx/GLLoader.h b/plugins/GSdx/GLLoader.h
index 9992139a0b1ac..fdbc7c3178c72 100644
--- a/plugins/GSdx/GLLoader.h
+++ b/plugins/GSdx/GLLoader.h
@@ -302,8 +302,6 @@ extern PFNGLMAKETEXTUREHANDLENONRESIDENTARBPROC gl_MakeTextureHandleNonResidentA
 extern PFNGLUNIFORMHANDLEUI64VARBPROC           gl_UniformHandleui64vARB;
 extern PFNGLPROGRAMUNIFORMHANDLEUI64VARBPROC    gl_ProgramUniformHandleui64vARB;
 
-extern PFNGLDEPTHRANGEDNVPROC                   gl_DepthRangedNV;
-
 // GL4.5
 extern PFNGLCREATETEXTURESPROC					gl_CreateTextures;
 extern PFNGLTEXTURESTORAGE2DPROC				gl_TextureStorage2D;
@@ -435,7 +433,6 @@ namespace GLLoader {
 	extern bool found_GL_ARB_shader_subroutine;
 	extern bool found_GL_ARB_bindless_texture;
 	extern bool found_GL_ARB_explicit_uniform_location;
-	extern bool found_GL_NV_depth_buffer_float;
 	extern bool found_GL_ARB_clip_control;
 	extern bool found_GL_ARB_direct_state_access;
 }
diff --git a/plugins/GSdx/GSDeviceOGL.cpp b/plugins/GSdx/GSDeviceOGL.cpp
index 2b8fa0fc43ecf..b9eacceeb77b2 100644
--- a/plugins/GSdx/GSDeviceOGL.cpp
+++ b/plugins/GSdx/GSDeviceOGL.cpp
@@ -321,8 +321,6 @@ bool GSDeviceOGL::Create(GSWnd* wnd)
 	if (GLLoader::found_GL_ARB_clip_control) {
 		// Change depth convention
 		gl_ClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);
-	} else if (GLLoader::found_GL_NV_depth_buffer_float) {
-		gl_DepthRangedNV(-1.0f, 1.0f);
 	}
 #endif
 
diff --git a/plugins/GSdx/GSShaderOGL.cpp b/plugins/GSdx/GSShaderOGL.cpp
index ec5a76e9fb740..77587cc75686d 100644
--- a/plugins/GSdx/GSShaderOGL.cpp
+++ b/plugins/GSdx/GSShaderOGL.cpp
@@ -403,7 +403,7 @@ std::string GSShaderOGL::GenGlslHeader(const std::string& entry, GLenum type, co
 		header += "#define ENABLE_BINDLESS_TEX\n";
 	}
 
-	if (GLLoader::found_GL_NV_depth_buffer_float || GLLoader::found_GL_ARB_clip_control) {
+	if (GLLoader::found_GL_ARB_clip_control) {
 		header += "#define ZERO_TO_ONE_DEPTH\n";
 	}
 
diff --git a/plugins/GSdx/GSWnd.cpp b/plugins/GSdx/GSWnd.cpp
index a11dff9da04aa..41aa4fbca18ff 100644
--- a/plugins/GSdx/GSWnd.cpp
+++ b/plugins/GSdx/GSWnd.cpp
@@ -121,8 +121,6 @@ void GSWndGL::PopulateGlFunction()
 	*(void**)&(gl_UniformHandleui64vARB) = GetProcAddress("glUniformHandleui64vARB", true);
 	*(void**)&(gl_ProgramUniformHandleui64vARB) = GetProcAddress("glProgramUniformHandleui64vARB", true);
 
-	*(void**)&(gl_DepthRangedNV) = GetProcAddress("glDepthRangedNV", true);
-
 	// GL4.5
 	*(void**)&(gl_CreateTextures) = GetProcAddress("glCreateTextures", true);
 	*(void**)&(gl_TextureStorage2D) = GetProcAddress("glTextureStorage2D", true);