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微软发布DX12 Ultimate终极版驱动,不支持低于RTX20系列显卡

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大家都知道DX(DirectX)对游戏来说非常重要，现在Win10已经包含了DX12版本，近日微软还发布了DX12 Ultimate终极版驱动，能够让RTX 20系列的显卡发挥出最高效的性能，显卡大厂NVIDIA和AMD都纷纷表示做好支持工作，使得驱动更加兼容，发挥出硬件的最大性能~还不了解DX12 Ultimate终极版驱动是怎么回事的朋友一起来看看资讯吧。

Ultimate终极版是什么：也可以理解为DX12_2

1、其新增支持DXR 1.1光线追踪

2、可变速着色率(VRS Tier 1/2)

3、网格着色器

4、采样器反馈等高级特性

5、将集成于Windows 10 v2004、Xbox Series X之中。

NVIDIA、AMD也明确表态会全力支持DX12终极版

其中NVIDIA现有的图灵架构已经支持，AMD则要等下一代的RDNA 2架构。

可以说，DX12终极版里有着NVIDIA莫大的贡献，很大程度上就是汲取了其Turing图灵架构设计的精髓，NVIDIA支持起来自然也会更轻松，今天就面向开发者，发布了DX12终极版的首个开发者预览版驱动， 版本号450.82。

该驱动已经支持DX12终极版的所有新特性，硬件方面游戏卡仅支持RTX 20系列，专业卡仅支持Quadro RTX系列。

至于中低端的GTX 16系列，因为核心精简了光追单元而无法完整支持，NVIDIA也暂时没有详细解释会支持到何种程度。

需要注意的是，该驱动仅供开发者预览，不适合普通玩家，下载也需要先登录NVIDIA开发者项目账号。



DirectX光线追踪1.1是DirectX光线追踪1.0的一个增强版本。它的新特性包括在现有的光线追踪管线状态对象（Pipeline State Object）中可以加入额外的着色器（Shader）、支持GPU执行时间轴自行决定要处理的光线数量以及引入了新的内联式光线追踪。

简单来说DXR 1.1可以给开发者赋予游戏更好的光追效果及性能。目前有30多款已上市以及即将上市的游戏都表示支持DXR 1.1，《我的世界》就是其中一款，微软更是把其中的Path tracing路径渲染来演示XBOX Series X支持光追。

总来说来DirectX 12 Ultimate主要有两大特点，第一它是一个多平台的API接口，微软的次世代主机XBOX Series X也会是用这个图形API，可以说是统一了PC以及XBOX的图形API接口，这可以让开发者在开发时更加得心应手，不用再为XBOX以及PC的不同API接口而烦恼，同时也可以拥有更大的用户群体。

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