From Wikipedia, the free encyclopedia. It is the successor to the Mach series of 2D accelerators. There are tweakers with sliders that should help with this issue sacrificing some performance, but I couldn’t achieve any change. Also depth buffer never delivered improved performance, so it is unlikely there is any z-compare rejection of pixels. There is one suspicious image quality issue, textures often seem to have reduced color range. But for the time Rage II line gained big market share among 3d accelerators. Similarly to Laguna3D all members of Rage II family suffers from perspective problems, some surfaces are just wavy instead of straight.
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Thus the improvement over first Rage II comes down only to more memory.
As the name says, AFR renders each frame on an independent graphics processor. Current technologies and software.
3D Rage II family review (DVD, VT4, IIc)
It was up to Rage Pro to move ATi into higher class 3d gaming. Most important was z-buffering implemented in hardware, as it became requirement for many Direct3D games. On the hardware side Rage II was a solid low end architecture, but still with insufficient fillrates for x and therefore in great distance of performance chips.
Even if these features were “free”, Rage II performance would be far from best. Ato some bugs and simplifications hold image quality back. Windows 95 and Mac OS were not supported.
They were ATI’s first graphics solutions to carry the Mobility moniker. On top of that AGP 1x interface became an option, but without any advanced features. As for driver bugs, I found only one serious, objects are disappearing in Battlezone. Similarly to Laguna3D all members of Rage II family suffers from perspective problems, some surfaces are just wavy instead of straight.
Driver selected VT3 string, interesting For it’s time it is quite feature rich and can draw nice pictures, unless one nasty bug kicks in.
ATI 3d Rage IIC AGP Card – Vintage | eBay
Experience 3d gaming with mere 2 MB is very limiting even if the chip was powerful. This, in addition to its early lack of OpenGL support, hurt sales for what was touted to be a solid gaming solution.
So I have nothing much to talk about, gallery is at your disposal anyway. Autumn came and before anyone could yet realize first Rage will have miserable Direct3D compatibility, ATI unveiled second chip of the line.
I did some feature tests on VT4 in Tomb Raider 2. NT put them both on the AGP bus and switched between them, and so the board could only operate as a single Rage Pro with the performance of a Rage Fury card.
ATI 3d Rage IIC AGP Card – Vintage
More promising feature could be texture compression technique with two to four times compression ratio, but by this ATi understood less exciting palletized textures. This is not much of surprise from a chip without texture caching, still despite this optimization in synthetic tests the performance drop of bilinear filtering remains rather big. The processor was known for its well-performing bit color mode, but also its poorly dithered bit mode; strangely, the RAGE was not much faster in bit color despite the dage bandwidth requirements.
In other projects Wikimedia Commons.
ATI RAGE IIC graphics card – RAGE IIC – 4 MB
The chip was basically a die-shrunk Rage Prooptimized to be very inexpensive for solutions where only basic graphics output was necessary. All 3d primitives from points to quadrilaterals are supported. It seems despite die shrink ATI did not made any architectural advancements, at least not iiv 3d.
Reported chip clock is 75 MHz, but that is wrong without a doubt. Considering full availability in Christmas season such figure was far from exciting.
Initial versions relied on standard graphics memory configurations: Not because of lack of memory, this is true for all Rage II cards reviewed.
In reality, early versions of the new driver only delivered increased performance in benchmarks such as Ziff-Davis ‘ 3D Winbench 98 and Final Reality. Yet the driver is not preferring format, there is no speed improvement anyway. It took many years but final drivers are definitely good.