HyperZ
When we took a look at PowerVR's new chip solution, the Kyro, it became clear that a tile based rendering technique had some major advantages over the conventional rendering technique. By substantially decreasing the amount of data that had to pass over the relatively slow memory bus, the tile based rendering solution seemed like a good idea.
ATI seems to have agreed as well. Taking some of the techniques involved in tile based rendering, ATI created their HyperZ technology. HyperZ enables various forms of compression of the data going to the Z-buffer and performs an early culling of polygons so that objects that aren’t visible to the viewer aren’t rendered. By doing so, ATI claims that they can boost the effective memory bandwidth by about 20%.
Now that we know a bit behind the chip that powers ATI's new Radeon graphics card, let's take a look at how the chip is used.
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Thatguy97 - Tuesday, May 5, 2015 - link
ahh i remember anadtechs jihad against atiwow im dating myself
Frumious1 - Monday, August 29, 2016 - link
I don't remember it at all. The only thing I recall is a bunch of whiny ass fanboys complaining when their chosen CPU, GPU, etc. didn't get massive amounts of acclaim. The very first Radeon cards were good, but they weren't necessarily superior to the competition. You want a good Radeon release, that would be the 9700 Pro and later 9800 Pro -- those beat Nvidia hands down, and AnandTech said as much.