diff --git a/src/gba/core.c b/src/gba/core.c
index 0edd73b85..3feb64176 100644
--- a/src/gba/core.c
+++ b/src/gba/core.c
@@ -255,12 +255,19 @@ static void _GBACoreLoadConfig(struct mCore* core, const struct mCoreConfig* con
 	mCoreConfigCopyValue(&core->config, config, "threadedVideo");
 #endif
 	mCoreConfigCopyValue(&core->config, config, "hwaccelVideo");
+	mCoreConfigCopyValue(&core->config, config, "videoScale");
 }
 
 static void _GBACoreDesiredVideoDimensions(struct mCore* core, unsigned* width, unsigned* height) {
-	UNUSED(core);
-	*width = GBA_VIDEO_HORIZONTAL_PIXELS;
-	*height = GBA_VIDEO_VERTICAL_PIXELS;
+	struct GBACore* gbacore = (struct GBACore*) core;
+	int fakeBool;
+	int scale = 1;
+	if (mCoreConfigGetIntValue(&core->config, "hwaccelVideo", &fakeBool) && fakeBool) {
+		scale = gbacore->glRenderer.scale;
+	}
+
+	*width = GBA_VIDEO_HORIZONTAL_PIXELS * scale;
+	*height = GBA_VIDEO_VERTICAL_PIXELS * scale;
 }
 
 static void _GBACoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
@@ -406,6 +413,7 @@ static void _GBACoreReset(struct mCore* core) {
 #endif
 		if (mCoreConfigGetIntValue(&core->config, "hwaccelVideo", &fakeBool) && fakeBool) {
 			renderer = &gbacore->glRenderer.d;
+			mCoreConfigGetIntValue(&core->config, "videoScale", &gbacore->glRenderer.scale);
 		}
 		if (core->videoLogger) {
 			gbacore->proxyRenderer.logger = core->videoLogger;
diff --git a/src/platform/qt/CoreController.cpp b/src/platform/qt/CoreController.cpp
index 5f6f8ba04..37ea45cac 100644
--- a/src/platform/qt/CoreController.cpp
+++ b/src/platform/qt/CoreController.cpp
@@ -40,7 +40,7 @@ CoreController::CoreController(mCore* core, QObject* parent)
 	m_threadContext.core = core;
 	m_threadContext.userData = this;
 
-	QSize size(256, 512);
+	QSize size(1024, 2048);
 	m_buffers[0].resize(size.width() * size.height() * sizeof(color_t));
 	m_buffers[1].resize(size.width() * size.height() * sizeof(color_t));
 	m_buffers[0].fill(0xFF);
diff --git a/src/platform/qt/DisplayGL.cpp b/src/platform/qt/DisplayGL.cpp
index 722359255..8ff657016 100644
--- a/src/platform/qt/DisplayGL.cpp
+++ b/src/platform/qt/DisplayGL.cpp
@@ -251,7 +251,7 @@ PainterGL::PainterGL(int majorVersion, VideoProxy* proxy, QGLWidget* parent)
 	m_backend->lockAspectRatio = false;
 
 	for (int i = 0; i < 2; ++i) {
-		m_free.append(new uint32_t[256 * 256]);
+		m_free.append(new uint32_t[1024 * 2048]);
 	}
 }