刚逛FB看到HKEPC转发VideoCardz的报导
英文来源：VideoCardz
https://videocardz.com/newz/up-to-3x-fps-boost-nvidia-and-amd-frame-generation-technologies-can-work-together-in-games-like-cyberpunk-2077
短网址：
https://reurl.cc/Ry54Dx
原文(韩文)来源：QuasarZone论坛
https://quasarzone.com/bbs/qc_plan/views/34540
短网址：
https://reurl.cc/r6yxnr
VideoCardz报导节录：
The Frame Generation is part of NVIDIA DLSS 3, and it is only supported by
NVIDIA RTX 40 graphics. AMD’s Fluid Motion Frames technology is part of the
enablement for FSR3 (next-gen upscaling) and HYPR-RX. AMD is working on
enabling its frame generation tech separately as part of their driver
features. Gamers may now enable AFMF per each supported game, but it requires
an AMD driver and GPU present to work.
QuasarZone had a crazy idea to combine both NVIDIA’s and AMD’s frame
generation to the same graphics pipeline. This means that both GPUs will
generate frames and, technically, this should much even higher performance.
Spoiler alert, performance is indeed much higher (in some tests) but there
are issues that may prevent this idea from making much sense.
For starters, to enable FG on both GPUs, two cards are required in the
system. The RX 6600 GPU (like in this case) must be connected to the primary
monitor, and the game has to be rendered on that monitor as well. Users then
must individually select the rendering GPU to RTX 40 graphics (RTX 4090 in
this example).
The way it works, the game is rendered on RTX 4090 which is using its native
DLSS3 FG technology, but the output image is then interpolated by AFMF again,
which increases the average framerate by up to 290% compared to native
resolution. Without AFMF, it would be around 200% in games like Cyberpunk
2077.
======
The improvement in performance is remarkable. Significant enhancements in
average frames per second (FPS) have been achieved. However, the impact on
the bottom 1% FPS performance varies depending on the game. In titles like
Cyberpunk 2077, the application of AFMF has contributed to the improvement of
bottom 1% FPS performance, while in Ratchet & Clank: Rift Apart, it has, on
the contrary, resulted in a decline in bottom 1% FPS.
Conversely, in Call of Duty: Modern Warfare III 2023, the implementation of
AFMF has enhanced the bottom 1% FPS performance, but when used in conjunction
with DLSS 3 FG, there is a slight decrease, showcasing differences across
games.
— QuasarZone
======
As mentioned, this configuration is not without compromises, and it does not
always produce the best experience. The average framerate will increase, but
the number of the slowest frames (1%) may go lower. This metric is often used
to showcase the smoothness of gameplay. In other words, despite an increase
in average framerate, the experience may be worse.
Furthermore, this setup means that two cards are used, so higher power
consumption and exotic GPU setup will enforce full-screen rendering mode, as
AFMF does not work in other modes. The Radeon GPU needs to be at least a
middle-range one because the AFMF uses 90% of the Radeon RX 6600 GPU, so
using cards like the RX 6500 XT might not be enough.
We look forward to seeing how modders and gamers take advantage of this these
technologies in the future. It is extremely unlikely that AMD and NVIDIA will
ever work together to combine their technologies, either officially or
unofficially. Moreover, the artificial doubling of already interpolated
frames will almost certainly introduce more graphics glitches. For science,
however, this seems like a very interesting thing to test.
大意：
韩国人使用RTX 4090 + RX 6600双卡配置
同时使用N卡FG+A卡AFMF双补帧 大幅提升游戏帧数
https://i.imgur.com/zbSwzWg.jpg
4090负责渲染游戏+DLSS3 FG补帧
6600负责AFMF补帧+输出画面
设置方法：
跑游戏的萤幕要插在A卡上
Windows设定内要指定用N卡跑游戏
A卡驱动内开启AFMF选项
游戏要跑在全萤幕 因为AFMF目前只支援全萤幕游玩
全视窗、视窗化、无边界模式都不支援
帧数提升可以参考韩文论坛
https://i.imgur.com/7NSQscx.png
https://i.imgur.com/7eR1Xk5.png
在2077中
平均帧提升291%
1%最低帧提升147%
不过要注意虽然平均帧上升 但有些游戏的1%帧反而降低
所以游戏体验不一定更好
例如COD MW3的1%最低帧在开启双补帧后反而略降
https://i.imgur.com/pD19nCG.png
https://i.imgur.com/asGvFwa.png
结论：
https://i.imgur.com/M31NwVE.png
真的有用，但有几个注意事项/缺点
-不是每个游戏都更顺畅 有些的1%帧反而降低
-AFMF在镜头快速变动时会关闭，这点在FG+AFMF也一样
-韩国作者建议使用支援PCIe x16拆分x8/x8的主机板
-4K游玩下RX6600没开AFMF就已经使用40%，开启后使用率达90%
加上作者用6500XT除了效能低落外还遇到闪退重开等稳定性问题
因此建议使用6600以上的A卡
-
一个补帧不够 你有试过用两个吗XD
感觉很像A卡以前的FM 也是可以N+A双卡配置
N卡拿来跑游戏 A卡负责输出跟影片补帧 只是现在是补游戏
我大二组第一台电脑也是装N+A
不过可能是驱动打架的缘故常常蓝屏
加上对我而言实用度不高
后来就改回单卡设置了
韩国作者也提到这玩法的效益问题
毕竟要考虑驱动、主板相容性
以及多插一张卡而增加的功耗等等
值不值得这样玩就看个人了