In fact, before the announcement of Hawaii in less than a week. Especially because some of the predictions in this regard have been taken back in May . For the memory bus width of the new AMD GPU were divided opinions: some sources claim that they preserved 384-bit bus and the ability to increase the storage capacity from 3 to 6 GB, others insist on a wider 512-bit memory bus and a proportionate increase in the maximum memory - to 4 or 8 GB, respectively.
manufacturers fear wider memory bus , because it complicates the design of printed circuit board and the processor, increasing the cost. So, we list the main characteristics of the graphical solutions Radeon R9 290X (Hawaii):
- The number of transistors - about 4.9 billion shares;
- Chip area - 430 square millimeters;
- Manufacturing technology - 28 nm;
- The number of stream processors - 2816 pieces;
- The number of texture units - 176 units;
- The number of ROP units - 64 units;
- The estimated frequency of 925/7000 MHz;
- The memory bus width - 512 bits;
- Memory - 4 GB GDDR5;
- The TDP value - about 250 watts.
Of course, most of these characteristics are still to be confirmed.