Under the younger series of video Volcanic Islands, AMD renamed last generation solutions . In particular, Radeon HD 7970 into a Radeon R9 280X. The latter, however, will receive a processor Tahiti, produced by a new stepping, but its performance is not affected.
In turn, Radeon HD 7970 will be phased out , and sale of these cards will continue until exhaustion of stocks. According to foreign colleagues, it will happen in mid-November.
Associate confirmed the compatibility of video cards Radeon HD 7970 and Radeon R9 280X to run in CrossFire. A similar trick can be done with video cards Radeon HD 7870 and Radeon R9 270X, Radeon HD 7790 and Radeon R7 260X.