It appears that AMD's upcoming Radeon R9 390 series graphics cards, the R9 390X and the R9 390, will be nothing more than just a rebrands with higher GPU, higher memory clocks and 8GB of GDDR5 memory, according to a leaked GPU-Z screenshot.

If two GPU-Z screenshots posted by Videocardz.com are legit, it appears that AMD's "new" Grenada GPU is identical to the Hawaii GPU, since both the R9 390X and the R9 390 have the same device-IDs as the Radeon R9 290X and R9 290. Even the GPU-Z reads both graphics cards as based on Hawaii GPU while the GPU codename Grenada appares in BIOS.

To be fair, AMD did include some changes as both the R9 390X and the R9 390 will have higher GPU and memory clocks as well as pack 8GB of memory, which is double the amount of memory compared to the R9 290X and the R9 290. The memory clock on both graphics cards have been raised from 1250MHz (5.0GHz effective) up to 1500MHz (6.0GHz effective), which results in memory bandwidth increase to 384GB/s.

The GPU clocks are a bit tricky as these have not been yet confirmed but according to rumors, the R9 390X should be clocked at 1050MHz, up from 1000MHz on the R9 290X, while R9 390 should work at 1000MHz, up from 947MHz on the R9 290.

In any case, we will know for sure tomorrow, when AMD is expected to launch its full Radeon 300 series graphics cards and possibly show the new flagship Radeon R9 Fury series.



Source: Techpowerup.com.