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画质党狂喜！英伟达DLSS 4.5光线重建8月25日发布：RTX 20到50全系免费升级_我的网站

A |     Moscow, Oct 14 (UNI) The United Nations' Food and Agriculture Organization (FAO) called on Friday for renewed support for small-scale farms supplying food to their communities as a way of mitigating global hunger.
"More should be done to assist small-scale farms, which produce more than a third of the world’s food but represent 80 percent of the world’s producers," the agency said in a statement.
The organization said ahead of the World Food Day on Sunday that farmers in rural areas were among the most vulnerable, despite being one of the foundations of the global agri-food system.
"Yet they are too often trapped in cycles of poverty and food insecurity and excluded from opportunities in systems dominated by large producers and retailers," it said.
FAO said that governments should provide equal opportunities for all producers and help smallholders enter new markets. Investment in training, technologies and innovation can go a long way in placing small farms at the center of transformation, it said.
UNI/SPUTNIK GNK。    英伟达官方近日宣布，GeForce On社区更新直播将于北京时间8月25日23:00在YouTube和Twitch平台播出。业界普遍预期，DLSS 4.5光线重建的正式推送将是本次活动的核心内容。对于光线追踪和路径追踪游戏玩家来说，这无疑是一次值得期待的画质升级。

B |     英伟达于今年6月在COMPUTEX 2026上正式发布了DLSS 4.5光线重建技术。

C | 该技术采用第二代Transformer AI模型，相比前代，新模型计算能力提升35%，参数数量增加20%，降噪器更强大，空间感知能力更深入。此前，DLSS 4.5光线重建的相关文件已在《使命召唤：现代战争4》测试版文件中被发现。

D | 其驱动文件通过NVIDIA Profile Inspector即可在已支持游戏中提前启用。正式推送在即，用户无需更换硬件就能升级，DLSS 4.5光线重建将覆盖RTX 20、30、40、50全系显卡。由于RTX 40和50系列支持FP8精度加速，运行光线重建的效率更高；而RTX 20和30系列不支持FP8，性能开销会相对更大。此外，新版光线重建在RTX 50系列上还支持6倍多帧生成，这是一个专为50系优化的功能，能进一步放大帧率表现。除DLSS 4.5外，本次GeForce On还可能涉及RTX Spark和Reflex 2等话题。关于DLSS 5，英伟达今年3月GTC上已宣布计划秋季推出。    至于新硬件方面，2025年Gamescom曾明确宣布无新硬件，今年英伟达虽未作类似说明，但目前尚无新GPU迹象。

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Published on:00:07:12