Apples and oranges. Check this out:
http://www.intel.com/products/sitemap.htm
As can be seen, Intel currently develops Semiconductor process tech, CPUs, iGPUs, mobile phone chips, SSDs, smart TV solutions, various software, WLAN chips, Ethernet controllers, health care solutions, cable modems, ..., you name it!
So the Intel R&D budget is spread out over lots of different areas. To make a fair comparison with AMD's R&D budget, you should compare the part of Intel's R&D budget that is directed only towards those areas that AMD is active, i.e. primarily CPU, chipset and GPU development (and related SW such as drivers).