Graphics cards aren't normally our go-to choices for audio processing, but we may have to make exceptions for AMD's just-unveiled Radeon R9 and R7 lines. The R9 290X (shown above), R9 290 and R7 260X (after the break) will support TrueAudio, a new programmable pipeline that enables advanced audio effects without burdening a PC's main processor or a dedicated sound card. Not that the range will be lacking in visual prowess, of course. While the company isn't revealing full specifications, it claims that the R9 290X flagship will have five teraflops o