diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index 1c0e3df4c2..5fe2711845 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -6,6 +6,7 @@
 #include <cinttypes>
 #include <cmath>
 #include <cstdio>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -1002,8 +1003,6 @@ u32 Renderer::AccessEFB(EFBAccessType type, u32 x, u32 y, u32 poke_data)
 	{
 	case PEEK_Z:
 		{
-			u32 z;
-
 			if (!s_efbCacheValid[0][cacheRectIdx])
 			{
 				if (s_MSAASamples > 1)
@@ -1017,19 +1016,17 @@ u32 Renderer::AccessEFB(EFBAccessType type, u32 x, u32 y, u32 poke_data)
 					g_renderer->RestoreAPIState();
 				}
 
-				float* depthMap = new float[targetPixelRcWidth * targetPixelRcHeight];
+				std::unique_ptr<float> depthMap(new float[targetPixelRcWidth * targetPixelRcHeight]);
 
 				glReadPixels(targetPixelRc.left, targetPixelRc.bottom, targetPixelRcWidth, targetPixelRcHeight,
-				             GL_DEPTH_COMPONENT, GL_FLOAT, depthMap);
+				             GL_DEPTH_COMPONENT, GL_FLOAT, depthMap.get());
 
-				UpdateEFBCache(type, cacheRectIdx, efbPixelRc, targetPixelRc, depthMap);
-
-				delete[] depthMap;
+				UpdateEFBCache(type, cacheRectIdx, efbPixelRc, targetPixelRc, depthMap.get());
 			}
 
 			u32 xRect = x % EFB_CACHE_RECT_SIZE;
 			u32 yRect = y % EFB_CACHE_RECT_SIZE;
-			z = s_efbCache[0][cacheRectIdx][yRect * EFB_CACHE_RECT_SIZE + xRect];
+			u32 z = s_efbCache[0][cacheRectIdx][yRect * EFB_CACHE_RECT_SIZE + xRect];
 
 			// if Z is in 16 bit format you must return a 16 bit integer
 			if (bpmem.zcontrol.pixel_format == PEControl::RGB565_Z16)
@@ -1045,9 +1042,6 @@ u32 Renderer::AccessEFB(EFBAccessType type, u32 x, u32 y, u32 poke_data)
 			// Tested in Killer 7, the first 8bits represent the alpha value which is used to
 			// determine if we're aiming at an enemy (0x80 / 0x88) or not (0x70)
 			// Wind Waker is also using it for the pictograph to determine the color of each pixel
-
-			u32 color;
-
 			if (!s_efbCacheValid[1][cacheRectIdx])
 			{
 				if (s_MSAASamples > 1)
@@ -1061,24 +1055,22 @@ u32 Renderer::AccessEFB(EFBAccessType type, u32 x, u32 y, u32 poke_data)
 					g_renderer->RestoreAPIState();
 				}
 
-				u32* colorMap = new u32[targetPixelRcWidth * targetPixelRcHeight];
+				std::unique_ptr<u32> colorMap(new u32[targetPixelRcWidth * targetPixelRcHeight]);
 
 				if (GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGLES3)
 				// XXX: Swap colours
 					glReadPixels(targetPixelRc.left, targetPixelRc.bottom, targetPixelRcWidth, targetPixelRcHeight,
-						     GL_RGBA, GL_UNSIGNED_BYTE, colorMap);
+						     GL_RGBA, GL_UNSIGNED_BYTE, colorMap.get());
 				else
 					glReadPixels(targetPixelRc.left, targetPixelRc.bottom, targetPixelRcWidth, targetPixelRcHeight,
-						     GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, colorMap);
+						     GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, colorMap.get());
 
-				UpdateEFBCache(type, cacheRectIdx, efbPixelRc, targetPixelRc, colorMap);
-
-				delete[] colorMap;
+				UpdateEFBCache(type, cacheRectIdx, efbPixelRc, targetPixelRc, colorMap.get());
 			}
 
 			u32 xRect = x % EFB_CACHE_RECT_SIZE;
 			u32 yRect = y % EFB_CACHE_RECT_SIZE;
-			color = s_efbCache[1][cacheRectIdx][yRect * EFB_CACHE_RECT_SIZE + xRect];
+			u32 color = s_efbCache[1][cacheRectIdx][yRect * EFB_CACHE_RECT_SIZE + xRect];
 
 			// check what to do with the alpha channel (GX_PokeAlphaRead)
 			PixelEngine::UPEAlphaReadReg alpha_read_mode = PixelEngine::GetAlphaReadMode();