3DNow! has been surpassed by....how many code extensions? And if your software supported 3DNow!, the software will still run, just without the extensions now. Which might be a performance issue....if your software wasn't 15 years old and designed to run on K6-2 CPU's anyways. So the 10% performance hit you take from no 3DNow! will be canceled by the 1000000% performance gain from a modern CPU
Things change. 3DNow! served its purpose and that is now behind us. In the day, 3DNow! was cool, but not often used so its passing at a time when CPUs are so much more advanced could have passed without an AMD announcement (except in the old dude SW dev world). BTW, I am one of those old dudes.
Well even though it served it's purpose back in the day I do not think many or if any modern programs use it any longer. So if this makes more die space so AMD can ad other features into their CPU's I am all for it.
I'm sure Quake 2 will run fine still without it..lol
I actually still have a K6-2+ based Sony Vaio at home with a whopping 256MB of RAM running Puppy Linux. When we bought it for my wife, it was state of the art and came pre-loaded with Windows ME (that was removed within minutes of opening the box and replaced with Win2K).
Even so, if I had to guess, the 3DNow! extensions were likely never used on this machine as it was never used for games.
Regardless, it is cool to discuss these changes in the tech landscape.
[citation][nom]iggybeans[/nom]As this decision affects backward compatibility, I personally view it as a negative.[/citation]
are you thick? you can still play the games you'll just get 500 fps instead of 550
The reason behind 3DNow and SSE was to improve performance. On the Intel side performance increased by 60% just by adding the instruction sets even on a clock by clock bases with the same core. You all can look up old articles about this or do lot of benchmarking on vintage systems to see it's impact. Modern cpu get most of their performance from SSE while AMD's 3DNow if optimized can see big gains but that is a waste knowing market share. Basically what these instruction sets do is allow the FPU to cheat in certain calculations and reduce the time needed to complete them. Some can be scripted for encryption or multimedia decoding ect. However there are limits and to how much scripting can be done as well the limits of the architecture of the cpu core/s. This is why emulation of different platforms such as Power PC, Amiga, and many game consoles are so difficult.
The First cpu to include such scripting for the improvement of performance was the Zilog Z80.