AMD Socket AM2 has a secret weapon: Reverse HT

Posted on Friday, Jun 23 2006 @ 23:46 CEST by Thomas De Maesschalck
The Inquirer found out AMD has one major secret weapon hidden in its Socket AM2 processors. It appears that all AM2 CPUs feature support for the new Reverse-HyerThreading technology from AMD, an architectural change which enables software to think that it is working on a single-core alone.
By combining two cores, the company has been able to produce the six IPC "core" that will go head to head against four IPC "core" from Conroe/Merom/WoodCrest combo.

It seems that in certain cases, even an old AMD Athlon 64 3800+ can wipe the floor with Core 2 Duo E6300 CPU.

As we all know - the results from E6700 and X6800 against FX-62 will be nice, but the real fight with AMD is the one for the Conroe with 2MB of L2 cache. The system memory avoidance technology is working flawlessly on a 4MB cache model, but the case is reversed in the two Meg cache variant, especially in cache-hit sensitive apps, such as games.

In single-threaded apps, Core 2 Duo is expected to struggle against Reverse HyperThreading CPUs, which work at higher clock frequencies and produce higher instruction per clock ratios (IPC).
More details over here.


About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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