Sapphire Radeon X1800 XL Published: 6th July 2014 (last update 1st January 2017 ) Compare to fastest reference R520 board Add to compare GPU GPU type R520 Manufacturing process90 nm Transistors321 million Die size288 mm2 ROPs16 TMUs16 Pixel shaders16 Vertex shaders8 Unified shaders- Clock500 MHz Pixel fillrate8000 MP/s Texel fillrate8000 MT/s SP gigaflops- DP gigaflops- DirectX9c OpenGL2.0 OpenCL / Compute ver.- Memory Capacity256 MB TypeGDDR3 Clock1000 MHz Bus width256 bit Bandwith32000 MB/s Rated speed- Brand- The card ManufacturerSapphire InterfacePCI-E x16 Interface bandwith4096 MB/s TDP70 W Analog I/O ports1 × S-Video in, 1 × S-Video out, 2 × DVI-I Digital I/O ports2 × DVI-I Independent screens2 Manufacture date47th week of 2005 Release date2005 Sapphire Radeon X1800 XL (front side) Sapphire Radeon X1800 XL (back side) R520 GPU ATi FireGL V7200 ATi FireGL V7350 Sapphire Radeon X1800 XL R5xx architecture ATi FireGL V3300 (OEM) Sapphire Radeon X1800 XL Sapphire Radeon X1950 XT (256 MB) Sapphire Radeon X1800 XL gallery Sapphire Radeon X1800 XL gallery