SPEC CPU 2000(SpecInt) for AMD K8 "ClawHammer"

[Hattig]

A pretty old article there.

AMD will be releasing benchmarks in October for the Clawhammer or the Sledgehammer. Presumably these will be running at full speed then.

FYI, a Clawhammer running in 32-bit mode (not 64-bit with all the extras) running the openssl speed benchmark at 800MHz performs between a 1GHz Athlon and a 1.4GHz Athlon. A 64-bit version, properly optimised, could run 4 times faster apparently (due to being able to reduce iterations by a factor of 4 because you have 64-bit integers to play with)! A 2GHz Clawhammer in 64-bit mode running this particular benchmark would perform like a 10GHz Athlon!

Of course, this is one single benchmark which can really benefit from going to 64-bit, most applications will see a 20% - 40% speedup over a similarly clocked Athlon.

[Hattig]

AMD have not said that, some idiot on a website said that is would be 2.6GHz for 3400+. AMD have said nothing about clockspeeds for Hammer and how they relate to the performance rating. All they have said is 2GHz+ for 3400+ rating.

It looks likely that 2.2GHz will receive the 3400+ rating.

AMD are going to release the 2400+ and 2600+ Athlon TBred's next week according to The Inquirer. That is 2GHz and 2.133GHz. Intel will release the 2.8GHz P4 a week later.

Edit: Also, the G5 core controller chips (8500) run at 500MHz, so no wonder they perform a lot lower than the to be released desktop version! Probably have lot smaller caches, perhaps less execution units, etc.