HIS X1900 XTX and HIS X1900 Crossfire Edition

INTRODUCTION

Earlier this year, ATI released the X1900 XT and X1900 XTX GPUs. With 48 rendering pipelines compared to the 24 in the GeForce 7800 GTX and the 16 in the X1800 XT, these GPUs were more than just a spring refresh of the X1800 and gave ATI once again the top spot in the video card market. Plus, it did so at a lower price than its main competitor, the GeForce 7800 GTX 512MB.

Even though NVIDIA has responded with the excellent 7900 series of cards, the X1900 XT and XTX still are considered among the fastest and are still priced competitively.

Today, we are looking at the HIS X1900 Crossfire Edition Master Card and the HIS X1900 XTX. We will test them both separately and in Crossfire mode.

SPECIFICATIONS & FEATURES

The specifications and features of these GPUs are as expected pretty impressive (for more info read our preview of the X1900): 

Chipset features

• R580 90nm process
• 48 Pixel Shader Processors
• 8 Vertex shader Processors
• Vertex and Pixel Shader 3.0
• 10bit Native Display Quality
• Dynamic Flow Control
• 128-bit FP32 Processing
• 1024 instruction slots Shaders
• 128-way Ultra-threaded dispatch processor
• 512-bit Ring Bus
• High Dymanic Range rendering
• All stage Trilinear (16X) Anisotropic Filtering
• Full (HQ) Anisotropic Filtering
• 12X Temporal Max. MSAA
• 6X Adaptive AA
• Parallax Occlusion Mapping
• 12-tap error-free Dynamic Soft Shadows
• RMX/RMC
• H.264 Accelerated
• Dual DL-DVI + VIVO
• CrossFire support
• DirectX® 9 and OpenGL® supported

The difference between the X1900 XTX and the X1900 XT is in the clockspeed of the GPU and the memory. The difference between these two HIS cards is that the X1900 XTX has VIVO (Video In/Out) support.