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ATI Radeon X1950XTX - Part 1 - Specifications & pictures

X1950XTX house the same GPU as X1900XTX, more precise the transistor-giant R580. Even if X1950XTX is code-named R580Plus which implies a change of the architecture this is not the case, if you neglect the GDDR4 updated memory controller. R580 is big but also a very powerful GPU which together with the improved bandwidth makes X1950XTX the most powerful single-GPU graphics card available on the market.

Below we've listed the most important specifications for X1950XTX. It's worth mentioning that the RAMDAC supports 10-bit colors all the way through the pipe, something ATI is the sole company to offer and results in a dramatic improvement of the color ratios when e.g. watching movies with the right TV.

Code-name: R580+
Manufacturing process: 90nm
Transistors: ~384 million
Interface: Native PCI-Ex 16x
Pixel shaders: 48
Vertex shaders: 8
Rendering support: DirectX 9.0, OpenGL 2.0
Shader Model: 3.0
Image properties : HDR+AA, Angeld-AF
GPU frequency (MHz): 650
Memory interface: 256-bit (up to 512-bit internally)
Buffer size: 512MB
Memory frequency (MHz): 1000/2000 (DDR)
Memory bandwidth (GB/s) 64
RAMDAC: 400MHz 10bit
Cooling system : Dual-slot
Standard outputs 2x Dual-link DVI (HDCP), 1x VIVO
Price: $449

Graphics card comparison
X1950XTX X1950 Crossfire X1900XTX X1900 Crossfire X1900XT X1800XT
Code-name: R580+ R580+ R580 R580 R580 R520
Manufacturing process : 90nm 90nm 90nm 90nm 90nm 90nm
Memory: GDDR4 0.9ns GDDR4 0.9ns GDDR3 1.1ns GDDR3 1.2ns GDDR3 1.2ns GDDR3 1.2ns
Transistors: ~384 million ~384 million ~384 million ~384 million ~384 million ~320 million
Pixel shaders 48 48 48 48 48 16
Vertex shaders: 8 8 8 8 8 8
Frequency (core): 650MHz 650MHz 650MHz 625MHz 625MHz 625MHz
Frequency (memory): 2000MHz 2000MHz 1550MHz 1450MHz 1450MHz 1500MHz

We continue with taking a look at our test system.

Page 5 of 14

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