The first GPU-Z screenshots from the AMD Radeon R9 390X and R9 390 cards have surfaced today, revealing some key details.
From the GPU-Z benchmarks, it can be seen that the R9 390X and the R9 390 cards will indeed be re-brands of the current R9 290X and the R9 290 respectively. Both cards share the exact same device-ID as their predecessors.
GPU-Z reveals that the Radeon R9 390X is built on the 28nm Hawaii XT GPU with 2816 Stream Cores, while the Radeon R9 390 is built on the 28nm Hawaii PRO GPU with 2560 Stream Cores. While the GPU architecture and the Stream Core count is similar, AMD has bumped up the core clock on both the cards. The R9 390X features a 1060 MHz core clock, 50 MHz higher than the R9 290X. Similarly, the R9 390 features a core clock of 1000 MHz, up from 947 MHz on the R9 290. Apart from this, the two cards also feature twice the memory at 8GB. Memory bandwidth is higher too, 384 GB/s instead of 320 GB/s on the older cards.