This is because at 4K the portion of the render time per frame is heavier on FP32 shaders. The two times FP32 design can only be fully utilized at 4K and beyond. We noted part of the reason for the weaker than expected 1440p performance was down to the Ampere architecture and the change to the SM configuration. In our review we tested with both the Ryzen 9 3950X and Core i9-10900K and both often saw the same resolution scaling. We saw this as did many other reviewers, some of which simply suggested it was a CPU bottleneck, the RTX 3080 is powerful enough that even the latest and greatest CPUs can't keep up.īut simply writing this off as a CPU issue didn't sit right with us. But back to Ampere and its interesting quirks, the aim here is to investigate and explain what's going on.įor those of you not up to speed, in our RTX 3080 review we found that gaming performance at 1440p was not as impressive relative to what was seen at 4K. The RTX 3080 is the best value high-end GPU on the market by a country mile. Now before we get into it, do note, this article is not designed to change your opinion (our ours) about Ampere. It's time we get to explore something we've been eager to investigate since our day-one GeForce RTX 3080 review, and that's the weaker-than-expected resolution scaling of the new Ampere architecture.
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