diff --git a/src/GUI/app.cpp b/src/GUI/app.cpp
index d08caef2..e18ce0cd 100644
--- a/src/GUI/app.cpp
+++ b/src/GUI/app.cpp
@@ -56,7 +56,6 @@ App::App(int &argc, char **argv) : QApplication(argc, argv)
 	   "QThreadStorage: Thread X exited after QThreadStorage Y destroyed" */
 	Downloader::setNetworkManager(new QNetworkAccessManager(this));
 	DEM::setDir(ProgramPaths::demDir());
-	DEM::setCacheSize(536870912/*512MB*/);
 	QSurfaceFormat fmt;
 	fmt.setStencilBufferSize(8);
 	fmt.setSamples(4);
diff --git a/src/GUI/gui.cpp b/src/GUI/gui.cpp
index b767b81c..11b2c099 100644
--- a/src/GUI/gui.cpp
+++ b/src/GUI/gui.cpp
@@ -2416,6 +2416,7 @@ void GUI::writeSettings()
 	WRITE(useOpenGL, _options.useOpenGL);
 	WRITE(enableHTTP2, _options.enableHTTP2);
 	WRITE(pixmapCache, _options.pixmapCache);
+	WRITE(demCache, _options.demCache);
 	WRITE(connectionTimeout, _options.connectionTimeout);
 	WRITE(hiresPrint, _options.hiresPrint);
 	WRITE(printName, _options.printName);
@@ -2697,6 +2698,7 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	_options.useOpenGL = READ(useOpenGL).toBool();
 	_options.enableHTTP2 = READ(enableHTTP2).toBool();
 	_options.pixmapCache = READ(pixmapCache).toInt();
+	_options.demCache = READ(demCache).toInt();
 	_options.connectionTimeout = READ(connectionTimeout).toInt();
 	_options.hiresPrint = READ(hiresPrint).toBool();
 	_options.printName = READ(printName).toBool();
@@ -2784,6 +2786,7 @@ void GUI::loadOptions()
 	Downloader::setTimeout(_options.connectionTimeout);
 
 	QPixmapCache::setCacheLimit(_options.pixmapCache * 1024);
+	DEM::setCacheSize(_options.demCache * 1024);
 
 	_poi->setRadius(_options.poiRadius);
 
@@ -2909,6 +2912,8 @@ void GUI::updateOptions(const Options &options)
 
 	if (options.pixmapCache != _options.pixmapCache)
 		QPixmapCache::setCacheLimit(options.pixmapCache * 1024);
+	if (options.demCache != _options.demCache)
+		DEM::setCacheSize(options.demCache * 1024);
 
 	if (options.connectionTimeout != _options.connectionTimeout)
 		Downloader::setTimeout(options.connectionTimeout);
diff --git a/src/GUI/optionsdialog.cpp b/src/GUI/optionsdialog.cpp
index 49ac4f07..a38e1c9d 100644
--- a/src/GUI/optionsdialog.cpp
+++ b/src/GUI/optionsdialog.cpp
@@ -723,6 +723,12 @@ QWidget *OptionsDialog::createSystemPage()
 	_pixmapCache->setSuffix(UNIT_SPACE + tr("MB"));
 	_pixmapCache->setValue(_options.pixmapCache);
 
+	_demCache = new QSpinBox();
+	_demCache->setMinimum(64);
+	_demCache->setMaximum(2048);
+	_demCache->setSuffix(UNIT_SPACE + tr("MB"));
+	_demCache->setValue(_options.demCache);
+
 	_connectionTimeout = new QSpinBox();
 	_connectionTimeout->setMinimum(30);
 	_connectionTimeout->setMaximum(120);
@@ -740,6 +746,7 @@ QWidget *OptionsDialog::createSystemPage()
 #else // Q_OS_MAC
 	QFormLayout *formLayout = new QFormLayout();
 	formLayout->addRow(tr("Image cache size:"), _pixmapCache);
+	formLayout->addRow(tr("DEM cache size:"), _demCache);
 	formLayout->addRow(tr("Connection timeout:"), _connectionTimeout);
 	QFormLayout *checkboxLayout = new QFormLayout();
 	checkboxLayout->addWidget(_enableHTTP2);
@@ -932,6 +939,7 @@ void OptionsDialog::accept()
 	_options.useOpenGL = _useOpenGL->isChecked();
 	_options.enableHTTP2 = _enableHTTP2->isChecked();
 	_options.pixmapCache = _pixmapCache->value();
+	_options.demCache = _demCache->value();
 	_options.connectionTimeout = _connectionTimeout->value();
 	_options.dataPath = _dataPath->dir();
 	_options.mapsPath = _mapsPath->dir();
diff --git a/src/GUI/optionsdialog.h b/src/GUI/optionsdialog.h
index b259c71e..847f9252 100644
--- a/src/GUI/optionsdialog.h
+++ b/src/GUI/optionsdialog.h
@@ -79,6 +79,7 @@ struct Options {
 	bool useOpenGL;
 	bool enableHTTP2;
 	int pixmapCache;
+	int demCache;
 	int connectionTimeout;
 	QString dataPath;
 	QString mapsPath;
@@ -182,6 +183,7 @@ private:
 #endif // QT 5.14
 	// System
 	QSpinBox *_pixmapCache;
+	QSpinBox *_demCache;
 	QSpinBox *_connectionTimeout;
 	QCheckBox *_useOpenGL;
 	QCheckBox *_enableHTTP2;
diff --git a/src/GUI/settings.cpp b/src/GUI/settings.cpp
index e84311ed..de90892a 100644
--- a/src/GUI/settings.cpp
+++ b/src/GUI/settings.cpp
@@ -34,8 +34,10 @@
 
 #ifdef Q_OS_ANDROID
 #define PIXMAP_CACHE 256
+#define DEM_CACHE    128
 #else // Q_OS_ANDROID
 #define PIXMAP_CACHE 512
+#define DEM_CACHE    256
 #endif // Q_OS_ANDROID
 
 
@@ -243,6 +245,7 @@ SETTING(demPassword,         "demPassword",            ""                     );
 SETTING(useOpenGL,           "useOpenGL",              false                  );
 SETTING(enableHTTP2,         "enableHTTP2",            true                   );
 SETTING(pixmapCache,         "pixmapCache",            PIXMAP_CACHE           );
+SETTING(demCache,            "demCache",               DEM_CACHE              );
 SETTING(connectionTimeout,   "connectionTimeout",      30                     );
 SETTING(hiresPrint,          "hiresPrint",             false                  );
 SETTING(printName,           "printName",              true                   );
diff --git a/src/GUI/settings.h b/src/GUI/settings.h
index 021e06e4..b08a18eb 100644
--- a/src/GUI/settings.h
+++ b/src/GUI/settings.h
@@ -189,6 +189,7 @@ public:
 	static const Setting useOpenGL;
 	static const Setting enableHTTP2;
 	static const Setting pixmapCache;
+	static const Setting demCache;
 	static const Setting connectionTimeout;
 	static const Setting hiresPrint;
 	static const Setting printName;