Samsung officially announced the Samsung Galaxy Tab 3 7.0 Lite.
The Galaxy Tab 3 7.0 Lite feature a 7-inch TFT LCD WSVGA display resolution of 1024×600 pixels and a 1.2GHz Dual Core CPU, along with an 2MP Camera, Android 4.2, 1GB of RAM ,8GB of internal storage and and a 3.600 mAh battery.
Here is the chart you can see the difference between the Tab 3 and its Lite version.
Galaxy Tab 3 7.0 Lite Vs Galaxy Tab 3 7.0