AMD released its specs for the OEM models of the Radeon R9 380, Radeon R9 370 and Radeon R9 360. These all are based on existing chips and designs.
I specifically will add the keyword OEM here as the actual retail products might differ in specs a little. AMD names all the product R9, that is at least new. The AMD Radeon R9 380 is based on Tonga (Radeon R8 285) and has 1792 stream processors. The AMD Radeon R9 370 OEM “Pitcairn” and has 1024 stream processors (Radeon 7800/ R9 270X). Then the low-end R9 360 OEM (radeon 7790 / Radeon R9 260) is based on Bonaire and gets 768 stream processors. When we chart up stuff here's what the table looks like:
AMD Radeon R9 380, R9 370, R9 360 OEM Graphics Cards as listed at the AMD website:
| AMD Radeon R9 380 OEM | AMD Radeon R9 370 OEM | AMD Radeon R9 360 OEM | |
| Fabrication Process | 28nm | 28nm | 28nm |
| GPU | Tonga Pro | Pitcairn Pro | Bonaire Pro |
| Compute Engines | 28 | 16 | 12 |
| Streaming Processors | 1792 | 1024 | 768 |
| Graphics memory | 4 GB GDDR5 | 4-2 GB GDDR5 | 2 GB GDDR5 |
| Memory Clock | 5.5 GHz | 5.6 GHz | 6.5 GHz |
| Core Clock | 918 MHz | 975 MHz | 1050 MHz |
| Memory Bandwidth | 176 GB/s | 179.2 GB/s | 104 GB/s |
| Power Connectors | 2 x 6-pin | 1 x 6-pin | n/a |
| Form Factor | Full Height, Dual slot | Full Height, Dual slot | Full Height, Dual slot |
| Freesync | Yes | No | Yes |
| DirectX 12 Support | Yes | Yes | Yes |
This begs one question, Hawaii Pro and XT have not been named, (Radeon R9 290/290x). Obviously these will be respun as well in some sort of SKU. Again let me state, this is the OEM lineup, thus add-in cards for system builders and not retail standalone SKUs.
