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总结
多家科技媒体称，在“GeForce Super”新款显卡迟迟未见的背景下，英伟达将重心放在软件与驱动升级上：NVIDIA App更新引入DLSS 4.5“Super Resolution”并同步发布新的GeForce Game Ready驱动。社区测试显示，相比DLSS 4.0，DLSS 4.5在部分旧款RTX 30/20系列上可能出现超过20%的性能下降，验证了英伟达此前关于兼容与性能差异的提醒。与此同时，英伟达继续强化多帧生成等功能卖点，甚至提及6倍多帧生成与240Hz模式，并就实现方式回答媒体提问。整体反映其以AI渲染与软件栈优化延展游戏体验，但也带来不同代际硬件表现分化。
正文
With GeForce Super GPUs missing in action, Nvidia focuses on software upgrades Ars Technica NVIDIA App Update Adds DLSS 4.5 Super Resolution & New GeForce Game Ready Driver NVIDIA Community tests confirm DLSS 4.5 yields 20%+ performance loss on older RTX 30 and 20 series GPUs compared to DLSS 4.0 - Nvidia warnings ring true following rollout Tom's Hardware Nvidia Is Pushing the Number of Fake Frames for Games to Ludicrous Levels Gizmodo NVIDIA Answers TechPowerUp Questions on DLSS 4.5, 6x Multi FrameGen, and 240 Hz Mode TechPowerUp
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