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Gigabyte GV-R465D2-1GI Radeon HD 4650 1GB ATX HDMI Graphics Card |
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Price:
£78.94
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Faster clocks double the transistor density of earlier 65 nm technology. 55nm technology helped make HD4650 series products the most advanced GPUs ever highest clocks speeds incredible feature integration full performance and precision all the time and ability to take advantage of future higher-speed memories. ATI Avivo HD continues to provide brilliant colours sharp images smooth playback of Blu-ray and HD DVD content and now adds enhanced connectivity through DisplayPort HDMI with built-in multi-channel digital audio and on some GPUs Unified Video Decoding (UVD). UVD is designed to enable a cool and quiet media PC with low GPU and CPU power requirements and playback of full HD 1080p content. ATI?s all-new Catalyst Control Center goes far beyond traditional driver configuration software?it?s a feature-rich and stable 3D acceleration control application that puts you in complete command of your ATI visual processing unit (VPU). Catalyst Control Center offers exceptional graphics performance and visual quality for the ultimate in performance stability and innovation. Safe GPU overclocking custom profiles and assignable hotkeys are just a few of the many new features. You?ll also enjoy frequent updates reliable customer service and an interactive user feedback program all backed by ATI?s technical confidence industry-leading capability and uncompromising commitment to creating your ultimate visual experience. The power of DirectX 10.1 with awesome performance stunning visual effects and more dynamic interactivity than ever before.Ensures the best performance and application compatibility for all DirectX 10.1 applications. Microsoft DirectX 10.1 games with stunning 3D graphics and shading effects. Shader Model 4.1 adds support for indexed temporaries which can be quite useful for certain tasks.Regular direct temporary access is preferable is most cases. One reason is that indexed temporaries are hard to optimize. The shader optimizer may not be able to identify optimizations across indexed accesses that could otherwise have been detected. Furthermore indexed temporaries tend to increase register pressure a lot. An ordinary shader that contains for instance a few dozen variables will seldom consume a few dozen temporaries in the end but is likely to be optimized down to a handful depending on what the shader does. This is because the shader optimizer can easily track all variables and reuse registers. This is typically not possible for indexed temporaries thus the register pressure of the shader may increase dramatically. This could be detrimental to performance as it reduces the hardware?s ability to hide latencies. |
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