Here is a comparison of specifications, features and price of the NVIDIA SHIELD tablet and the Samsung Galaxy Tab S 8.4.
Source: au.ibtimes.com
The NVIDIA SHIELD tablet (16 GB, Wi-Fi) model is priced at US $299 and the SHIELD (32 GB, LTE) model can be purchased for US $399. Meanwhile, the Samsung Galaxy Tab S (16 GB, LTE variant) is priced at 599, whereas the Wi-Fi only variant with 16 GB storage can be purchased for 499.