Radeon HD 2600 XT DUAL
The Gemini 3 PCB houses two 65nm RV630 cores designed for the Radeon HD 2600 XT.
Specifications ATI Radeon HD 2600 XT Dual
| Name | Radeon HD 2600 XT Dual |
| Core | 2 x RV630 |
| Process technology (µm) | 0.065 |
| Transistors (million) | 390 |
| Core frequency | 800 |
| Memory frequency (DDR) | 700 (1400) |
| Bus and memory type | GDDR3 128 Bit |
| Bandwidth (Gb/s) | 22.4 |
| Unified shader blocks | 240 (2 x 120) |
| Frequency of unified shader units | 800 |
| TMU per conveyor | 16 (2 x 8) |
| ROP | 8 (2 x 4) |
| textures per clock | 16 |
| textures per pass | 16 |
| Shader Model | 4.0 |
| Fill Rate (Mpix/s) | 2 x 3200 |
| Fill Rate (Mtex/s) | 2 x 6400 |
| DirectX | 10.0 |
| Anti-Aliasing (Max) | MS-24x |
| Anisotropic Filtering (Max) | 16x |
| Memory | 2 x 256/2 x 512 |
| Interface | PCI-E |
| RAMDAC | 2x400 |
The performance of the ATI Radeon HD 2600 XT DUAL was on par with two Radeon HD 2600 XTs in the Crossfire bundle.