英伟达发布十月版DLSS 5模型，实测提速未达2倍
英伟达发布了 DLSS 5 神经渲染的新版本（十月更新），称该更新将模型参数量减少 24%，执行时间减半，显存占用降低 20%，同时画质基本持平。TechSpot 在《NBA 2K27》中实测，该游戏再次成为首个正式搭载最新模型的游戏；在 RTX 50 系列上测得 4K 平均渲染时间改善约 83%、1440p 约 94%，提升显著但未达到英伟达所称的 2 倍，TechSpot 也指出这一提速针对的是 DLSS 5 自身的渲染开销，而非整体帧率。TechSpot 表示本次更新重点是性能而非画质，初版存在的伪影和画质问题依然存在。
TechSpot 认为这次优化让神经渲染比发布之初能在更多 GPU 上可用，但同时表示处理速度翻倍只是该技术仍需解决的多个问题之一。
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Nvidia has released a new version of DLSS 5 neural rendering, claiming it runs twice as fast as the previous model. This October update reduces the number of parameters in the DLSS 5 model by 24%, halving execution time and reducing VRAM usage by 20%. All of this has been achieved while maintaining comparable image quality, according to Nvidia.
We thought it was worth revisiting DLSS 5 in everyone's favorite title, NBA 2K27, which is once again the first game to officially ship with the latest model. Does the new version really run twice as fast across all RTX 50 series GPUs without compromising image quality? Does it address some of the issues we raised in our initial DLSS 5 analysis? And does this performance improvement make DLSS 5 worth using now?
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