Over a year later, AMD is bringing improved FSR 4 upscaling to its older GPUs
Over a year later, AMD is bringing improved FSR 4 upscaling to its older GPUs
时隔一年多，AMD 终于将改进后的 FSR 4 超分辨率技术带到了旧款 GPU 上
When AMD announced version 4 of its FidelityFX Super Resolution (FSR) graphics upscaling technology early last year, it came with strings attached: The improved hardware-backed image quality would be available only on Radeon RX 9000-series GPUs based on the RDNA4 architecture, not on any older Radeon GPUs. 去年年初，当 AMD 发布其 FidelityFX Super Resolution (FSR) 图形超分辨率技术的第 4 版本时，它附带了一些限制条件：改进后的硬件加速图像质量仅适用于基于 RDNA4 架构的 Radeon RX 9000 系列 GPU，而不支持任何旧款 Radeon GPU。
To date, AMD has released only a handful of 90-series graphics cards, including the RX 9070 XT, the RX 9070, the 8GB and 16GB versions of the RX 9060 XT, and an RX 9060 that’s only available to PC companies rather than end users. That list notably doesn’t include any integrated GPUs, such as those found in AMD-powered thin-and-light laptops or gaming handhelds like the Steam Deck and its imitators. 迄今为止，AMD 仅发布了少数几款 90 系列显卡，包括 RX 9070 XT、RX 9070、8GB 和 16GB 版本的 RX 9060 XT，以及一款仅面向 PC 厂商而非终端用户的 RX 9060。值得注意的是，该列表不包含任何集成显卡，例如 AMD 驱动的轻薄笔记本电脑或 Steam Deck 及其同类产品等游戏掌机中使用的集成显卡。
Over a year later, AMD Computing and Graphics SVP Jack Huynh has announced that a version of FSR 4 is finally coming to older GPUs. The rollout will begin in July with RDNA3- and 3.5-based GPUs, which include the Radeon RX 7000 series, as well as integrated GPUs like the Radeon 890M and Radeon 8060S. 一年多后的今天，AMD 计算与图形部门高级副总裁 Jack Huynh 宣布，FSR 4 的一个版本终于要适配旧款 GPU 了。此次推广将于 7 月开始，首先覆盖基于 RDNA3 和 RDNA3.5 架构的 GPU，包括 Radeon RX 7000 系列，以及 Radeon 890M 和 Radeon 8060S 等集成显卡。
In “early 2027,” support will also be extended to the RDNA2 architecture, which includes the Radeon RX 6000 series, integrated GPUs like the Radeon 680M, and the Steam Deck’s GPU. This would also open the door to supporting FSR 4 on the PlayStation 5 and Xbox Series X and S, all of which also use RDNA2-based GPUs. 在“2027 年初”，支持范围还将扩展至 RDNA2 架构，其中包括 Radeon RX 6000 系列、Radeon 680M 等集成显卡以及 Steam Deck 的 GPU。这也为在 PlayStation 5 以及 Xbox Series X 和 S 上支持 FSR 4 打开了大门，因为这些设备也都使用了基于 RDNA2 的 GPU。
Huynh’s short video presentation didn’t get into performance comparisons, but did mention that AMD had to work to get FSR 4’s superior hardware-backed upscaling working on its older graphics architectures. RDNA4 includes AI accelerators that support the FP8 data format in the hardware, and porting FSR 4 to older GPUs meant getting it running on the integer-based INT8 hardware in the RDNA3 and RDNA2-based GPUs. Huynh 在简短的视频演示中并未深入探讨性能对比，但提到 AMD 必须付出努力，才能让 FSR 4 更出色的硬件加速超分辨率技术在其旧款图形架构上运行。RDNA4 包含支持硬件 FP8 数据格式的 AI 加速器，而将 FSR 4 移植到旧款 GPU 意味着必须使其能够在基于 RDNA3 和 RDNA2 的 GPU 的整数型 INT8 硬件上运行。
This may mean that FSR 4.1 running on an RDNA3 or RDNA2-based GPU may come with a larger performance hit relative to RDNA4 cards, or that image quality may differ slightly. Modders have already worked to get FSR 4 working on INT8-supporting GPUs, and the older GPUs reportedly see a 10 to 20 percent performance hit relative to FSR 3.1 running on the same hardware. AMD’s official implementation may or may not improve on these numbers. 这意味着在 RDNA3 或 RDNA2 GPU 上运行的 FSR 4.1 相比 RDNA4 显卡可能会有更大的性能损耗，或者图像质量可能会略有差异。模组制作者们已经尝试让 FSR 4 在支持 INT8 的 GPU 上运行，据报道，旧款 GPU 在运行 FSR 4 时，相比运行 FSR 3.1 的性能损耗约为 10% 到 20%。AMD 的官方实现可能会改善这些数据，也可能不会。
Regardless, it’s nice to see AMD doing work to support owners of older GPUs, especially since it continues to sell many products that use the older RDNA3 and RDNA2 architectures. Some of the company’s recent driver releases have implied that the company was doing less work to support older graphics architectures; the FSR 4.1 announcement should put some of those fears to rest, even though it’s coming later than some owners of those older GPUs might have preferred. 无论如何，很高兴看到 AMD 为支持旧款 GPU 用户所做的努力，尤其是考虑到该公司仍在销售许多使用旧款 RDNA3 和 RDNA2 架构的产品。该公司最近发布的一些驱动程序曾暗示其在支持旧架构方面投入的精力有所减少；FSR 4.1 的公告应该能消除部分担忧，尽管它的到来比一些旧款 GPU 用户所期望的要晚一些。
Any games that support FSR 4 should be able to support FSR 4.1 running on Radeon 7000-series cards; users will presumably be able to install a driver update in July that enables the new feature. Games that support the older FSR 3.1 can also be forced to use FSR 4 in the Radeon graphics driver. 任何支持 FSR 4 的游戏都应该能够支持在 Radeon 7000 系列显卡上运行 FSR 4.1；用户预计可以在 7 月通过安装驱动更新来启用该新功能。支持旧版 FSR 3.1 的游戏也可以在 Radeon 图形驱动程序中强制使用 FSR 4。
AMD’s FSR competes primarily with Nvidia’s Deep Learning Super Sampling (DLSS) upscaling technology, which tends to be more widely supported in games and deliver better results (partly because it has always been hardware-accelerated, something FSR only started doing in version 4). Part of the appeal of previous FSR versions is that they worked on pretty much any reasonably modern GPU hardware, including Intel’s integrated graphics and old GeForce GPUs that didn’t support DLSS. FSR 4.1 still won’t be as widely compatible as older versions were, even with the expanded hardware support. AMD 的 FSR 主要与 Nvidia 的深度学习超采样 (DLSS) 技术竞争，后者在游戏中的支持度往往更广，且效果更好（部分原因是它一直采用硬件加速，而 FSR 直到第 4 版才开始这样做）。此前 FSR 版本的部分吸引力在于它们几乎可以在任何现代 GPU 硬件上运行，包括英特尔的集成显卡和不支持 DLSS 的旧款 GeForce GPU。即便硬件支持范围有所扩大，FSR 4.1 的兼容性仍无法达到旧版本的广泛程度。