Originally Posted by andrewlef
For many (perhaps even most) of us, we don't sit close enough to our TV's to discern any difference between 1080p and 4K in the first place.
That may be true, and is a point worth bringing up. Certainly those viewing "TVs" (even large ones) will be less likely to benefit, depending on how far away they sit. So both 4K content and 4K displays may be moot, for them (and perhaps yourself). For example VBB mentioned he sits 12' from a 70" diag TV, which is a 61" horizontal width. That puts him at a d/w = 2.4x, with a ~24-deg field-of-view span. While others may have TVs that are smaller, or sit farther away, or both.
OTOH, some of the folks in this Forum are using projection displays, and clean upscaled 4K can be very easily differentiated. As a counter-example to the above, I sit (well, will be when I get a room ready) 10' from an almost 9'-wide screen. So my d/w will = 1.1-1.2, or a 48-deg span. And while that may seem really
close to some people, I'm actually at the low end. Some with 4K PJs (or 4K-eshift with JVCs) go for an immersion factor that puts them at d/w < 1.0! Or a FOV of 60+deg. I.e., they're closer to the screen than it is wide.
At this end of the range, the extreme quality of scaling that MadVR provides can make a very large visible difference.
Hence some of us trying to determine how much horsepower we need in a GPU to access various levels of PQ that MadVR makes available. Because that will impact not only $$$, but also heat and noise. Not always an easy task to know, in advance. But MadVR gives you the flexibility to make numerous options available, at any price-point. We know what MadVR CAN do, and don't want to buy a card that's too wimpy to achieve the kind of results we've seen.
Genuinely curious about this because I just got a 4K capable AVR and I'm weighing a switch to a 4K display (and a 4K HTPC).
Depending on how big the display, how close you sit, and how sharp an eye you have, all that extra $$$ spent for 4K could wind up being totally wasted. You need to figure out first what your specific situation is, by going somewhere to preview some clean true 4K, and seeing at what distance it stops making a meaingful difference. Each person must do that for themself (i.e., no blanket "rules", because no two situations are the same.