32 GB memory expansion
At 32 GB of memory, all is still right with the world for both cards. We can see that the frame time jumps (blue curve) are a bit larger at the neuralgic points with AMD, but that is peanuts. NVIDIA has an interesting spot where the power consumption (red curve) increases more for a few seconds. We will also notice this spot later when the memory drops, so it is not a coincidence. The NVIDIA card clearly has more to do here (total with sunset).
24 GB memory expansion
The picture doesn’t change here either, so there’s no need to comment further. The big blow is yet to come.
16 GB memory expansion
Even now, everything is still in the green area. However, you can also see here which part is more to AMD’s liking and where NVIDIA can render faster (always in relation to the respective card). So, nothing will really burn here for the time being. But it’s about to get fun!
12 GB memory expansion
There are still 2 GB available over the requirement – actually. Because with the AMD card we now see regular hang-ups. While we see a maximum of 32 ms drop with NVIDIA (where AMD doesn’t show anything noticeable), it’s 10 ms in a common spot for NVIDIA in contrast to over 330 ms with AMD. You can also see this jerk more than clearly, In addition, there are then two more with up to 125 ms drops.
10 GB memory expansion
Now we are in the valley of tears. The big NVIDIA card collapses downright brachially. With over 550 ms in the peak (AMD just under 400 ms) and further real hangs, it is visually unround, even in the further course, where one would actually not have expected any real jerks. AMD can do that a bit better.
8 GB memory expansion
Now we come to the runs with considerably less free memory than would actually be needed for rendering. Here, the graphics card normally accesses the slower system memory and sucks on the PCIe slot. NVIDIA advertises smart memory management in such situations and, well, you can see it. With the AMD card, it hangs in the same places as with 10 GB, but not quite as extremely. However, there is one more spot. And what happens with NVIDIA? We see an almost regular “pumping” (though the 10 ms or so is nothing that really bothers) with a new site. However, all the previous frame drops have miraculously disappeared. Incidentally, the new site with the rapidly successive frame-time drops is a long shot in the forest with a lot of vegetation and light/shadow clutter.
6 GB memory expansion
Now we finally come to the minimum version and the 6 GB memory for over 10 GB memory requirements. We again see NVIDIA’s almost rhythmic “pumping”, with FPS drops generally not exceeding 15 ms. But the exact intervals are really highly interesting and definitely no coincidence. Let’s call it planned “breathing” of the memory management or periodic “muscle twitching”, the drops on the AMD card get stronger, but not that much worse than with 10 GB.
Interim conclusion
So, NVIDIA’s clever memory management isn’t just marketing blubber, because you can really see the heartbeat from 8 GB downwards. Whether you really like it visually is up to you. But the few ms difference during refilling is certainly more bearable than real complete dropouts.
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