AMD Zone heeft een review van de Athlon 900 gepost. Naast een zak met benchmarks brengt deze review ons interessante info over de overklokbaarheid van de 900MHz Athlon. Het exemplaar van AMD Zone liep tot 1.03GHz, bij een Vcore van 1,9V:
As you can see the Athlon ran fine at .1V less than spec at 900MHz. It was only after I hit 1GHz that I had to raise the voltage past spec. I could post and start get to the welcome to Windows screen at 1040MHz but it would crash there. Now voltage would get me past that point. I tried 1050MHz but could not get a bios post. Remember, this is all with a 2/5 L2 cache divisor. I expect that with better cooling and a 1/3 cache divisor that higher speeds will be obtainable.
I want to be clear on the settings I used to get a stable 1030MHz. I set the GFD to 1GHz and 1.9V in conjunction with a bus speed of 103MHz. Now I could lower the GFD to 950 or 900MHz and raise the bus speed higher, but this was the optimal clock speed I was able to reach. This was with Cas 2 PC100 ram and with super bypass enabled. To test stability I used the system as my main computer since I picked up the 900MHz and my normal tasks include several windows on IE 5 open, Outlook, RC5 cracking, ICQ, and various other miscellaneous programs in the background. I also tested with several hours of intense Quake Arena death matching. I used Windows 98 for gaming, and Windows NT 4 SP6A as my primary work OS. I'm happy with the 1030MHz setting, but it is not as stable as the Sys Cold Fusion 1000 system I reviewed.