Best Cpu And MB for 200-250$

What is the best motherboard and cpu i can buy for around 200-250 my current a10 6800k bottelnecks my 2 R9 270X 4gb, The motherboard needs to have a optical out and 7.1 soundjacks

possibly x5650 and EVGA x58 motherboard from ebay?

The FX 8320, and Gigabyte 990FXA-UD3 are your best bet.