I also use TenFourFox with the PowerUOC mods and am very happy of its web performance. I don't use it to browse the web all that much though, but it's good to know that it still works great online.
TenFourFox still has a ways to go as far as being as smooth as it could be online. It's largely CPU dependent, and either for an OS limitation or another reason, is not compiled to offload content to the GPU, in the process leaving these vintage processors to do all the heavy work of rendering the bloated, modern Web by themselves.
Therefore, whenever someone browses the Web with a PowerPC Mac on TenFourFox, they're not getting the full picture of just what they can pull off because the GPU is not being leveraged for content rendering. When you take that into account, watchable 480p video being reserved for G5s start to make sense. Although PowerUOC attempts to mitigate this as much as absolutely possible (and it shows), it cannot simply flip a switch to "re-enable" GPU offloading, as that is out of its realm of control.
I
believe that the browsers available on Linux for PowerPC (Arctic Fox, SpiderWeb, Firefox, etc.) do not have this limitation however, and take full advantage of the system GPU whenever browsing the Web. This heavily lines up with consistent reports of Web browsing on Linux being vastly superior (faster) to that of OS X, oftentimes even being able to play back much higher definition video as a result.
So the fact that your G5 CPU is pulling everything essentially by itself and
still yields good performance online, is a real testament to the sheer power that the PowerPC 970 houses and is still capable of today, even for relatively mundane tasks.
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Anyway, I agree with the others on this fantastic job with this initiative you're taking part in. Don't forget the Pentium 4 and the Core 2 Duo, as those can also be had for peanuts (many times free) and are very capable of handling the modern Web as well. And being that PowerUOC is a universal patch, it can be used across different platforms, architectures, and browsers (even ones that DO take advantage of the GPU, might I add) to the same proportional effect. From a lowly Pentium !!! on Windows XP all the way to a twelve-core Xeon on macOS Mojave.
Sent from my Pentium 4.
