Radeon X1550
The chip consisted of 105 million transistors and had 4 pixel pipelines with one TMU per pipeline, as well as 2 vertex processors. At one time, video cards of the ATI Radeon X1300 family were based on this graphics processor. The eldest of them, ATI Radeon X1300 Pro, was designed to withstand the then very popular NVIDIA GeForce 6600, for which it received sufficiently high frequencies of both the graphics chip and the memory.
By the way, it didn't turn out to be a competitor - for a number of reasons, one of which was the presence of only 4 pixel pipelines.
And now, after some time, already being a part of AMD corporation, ATI decided to abolish the Radeon X1300 family of video cards, introducing Radeon X1550 series products to replace them. At the same time, the Radeon X1300 Pro video cards based on the RV515 and RV516 Pro chips were discontinued, and the Radeon X1300 was simply renamed the Radeon X1550. True, along with this, the frequencies of the GPU and memory have slightly grown. Also, later it is possible to install RV516 and RV505 Pro chips (actually the same RV515) on these video cards, made according to a thinner 0.08 micron technical process and operating at a frequency of 550 MHz.
Specifications ATI Radeon X1550
| Name | Radeon X1550 |
| Core | RV516/RV505Pro |
| Process technology (µm) | 0.08 |
| Transistors (million) | 105 |
| Core frequency | 400 |
| Memory frequency (DDR) | 400 (800) |
| Bus and memory type | GDDR2 128 Bit |
| Bandwidth (Gb/s) | 12.8 |
| Pixel pipelines | 4 |
| TMU per conveyor | 1 |
| ROP | 4 |
| textures per clock | 4 |
| textures per pass | 4 |
| Vertex conveyors | 2 |
| Pixel Shaders | 3.0 |
| Vertex Shaders | 3.0 |
| Fill Rate (Mpix/s) | 1600 |
| Fill Rate (Mtex/s) | 1600 |
| DirectX | 9.0c |
| Anti-Aliasing (Max) | MS-6x |
| Anisotropic Filtering (Max) | 16x Quality |
| Memory | 256/128 |
| Interface | PCI-E |
| RAMDAC | 2x400 |