The Radeon R9 290 has dropped from its $399 price to $299, while its more powerful brother, the R9 290X drops from $549 to $399, a drop of $150. The R9 285 has also dropped to $229 or so, while the 280X is down to around $269. The new price cuts are effective immediately, with Newegg and Amazon prices being adjusted already.
AMD begins slashing the prices of its Radeon R9 290, R9 290X GPUs