Radeon HD 2600 PRO
Radeon HD 2600 Pro and Radeon HD 2600 XT, in addition to the standard DirectX 10 support for all new products, they support Avivo HD technology with hardware HD video processing.
Radeon HD 2600 chips contain about 390 million transistors, 120 stream processors. The clock speeds for Radeon HD 2600 Pro chips are 600 MHz, for Radeon HD 2600 XT chips - 800 MHz. The memory bus of the new cards is 128-bit.
Specifications ATI Radeon HD 2600 PRO
| Name | Radeon HD 2600 PRO |
| Core | RV630 |
| Process technology (µm) | 0.065 |
| Transistors (million) | 390 |
| Core frequency | 600 |
| Memory frequency (DDR) | 500 (1000) |
| Bus and memory type | GDDR2-3 128 Bit |
| Bandwidth (Gb/s) | 16 |
| Unified shader blocks | 120 |
| Frequency of unified shader units | 600 |
| TMU per conveyor | 8 |
| ROP | 4 |
| textures per clock | 8 |
| textures per pass | 8 |
| Shader Model | 4.0 |
| Fill Rate (Mpix/s) | 2400 |
| Fill Rate (Mtex/s) | 4800 |
| DirectX | 10.0 |
| Anti-Aliasing (Max) | MS-24x |
| Anisotropic Filtering (Max) | 16x Quality |
| Memory | 256/512 |
| Interface | PCI-E/AGP |
| RAMDAC | 2x400 |
The situation with 3D performance in games was not so rosy. The 2600PRO is significantly slower than the HD 2600 XT, which by itself lacks stars from the sky in this area.
In this case, the main bottleneck of solutions based on RV630 was due to the presence of only 4 blocks of raster operations in the core, supplemented by a much slower memory subsystem.