Hardware museum

	Reference R520 Board	Sapphire Radeon X1800 XL
GPU type	R520	R520
Manufacturing process	90 nm	90 nm
Transistors	321 million	321 million
Die size	288 mm²	288 mm²
ROPs	16	16
TMUs	16	16
PS / VS \| Unified Shaders	16 / 8 \| -	16 / 8 \| -
GPU clock	625 MHz	500 MHz (0.8×)
Pixel / texel fillrate	10 000 MP/s ; 10 000 MT/s	8 000 MP/s (0.8×) ; 8 000 MT/s (0.8×)
SP / DP gigaflops	- ; -	- ; -
DirectX / OpenGL	9c ; 2.0	9c ; 2.0
CUDA / OpenCL	- ; -	- ; -
Memory	512 MB GDDR3	256 MB (0.5×) GDDR3
Memory	1 500 MHz ; 256 bit	1 000 MHz (1×) ; 256 bit
Bandwith	48 000 MB/s	32 000 MB/s (0.67×)
Interface	PCI-E x16 [4 096 MB/s]	PCI-E x16 [4 096 MB/s]
TDP	-	70 W
Analog I/O ports	1 × S-Video in, 1 × S-Video out, 2 × DVI-I	1 × S-Video in, 1 × S-Video out, 2 × DVI-I
Digital I/O ports	2 × DVI-I	2 × DVI-I
Independent screens	2	2
Introduce date	2005	2005