Radeon R7 260X
Like the Bonaire chip in the Radeon HD 7790, the Bonaire XTX in the R7 260X is a fully enabled GPU with 896 stream processors, 56 texture units and 16 ROPs. The processor communicates with the frame buffer via a 128-bit bus. But, in addition to TrueAudio support and updated PowerTune, the R7 260X is characterized by significantly increased clock frequencies: 1100 and 6500 MHz (core and memory, respectively) versus 1000 and 6000 MHz for the HD 7790. However, the TDP has increased along the way: from 85 to 115 watts.
The specification calls for 2 GB of GDDR5 memory, while the Radeon HD 7790 officially exists in a version with 1 GB of frame buffer.
Radeon R7 260X Specifications
| Name | Radeon HD 7850 |
| Core | Bonaire XTX |
| Process technology (µm) | 0.028 |
| Core frequency | 1100 |
| Memory frequency (DDR) | 6500 |
| Bus and memory type | GDDR5 128-bit |
| Bandwidth (Gb/s) | 104 |
| Unified shader blocks | 1024 |
| Frequency of unified shader units | 1100 |
| TMU per conveyor | 56 |
| ROP | 16 |
| Shader Model | 5.0 |
| Fill Rate (Mpix/s) | 17520 |
| Fill Rate (Mtex/s) | 61040 |
| DirectX | 11.2 |
| Memory | 2048 |
| Interface | PCI-E 3.0 x16 |