Gamespot UK heeft 12 systemen met een PIII of K6-III processor op de testbank gezet. Hier heb je een stukkie gelul over SSE vs 3DNow!:
Intel's Pentium III introduces a new set of 128bit registers, each of which can hold four 32bit floating point numbers. This means that any operation carried out on any of these registers performs the equivalent of four floating point operations in just a single instruction cycle. With the K6-2 and K6-III, however, AMD decided to use an existing set of registers, already shared between the conventional floating point unit and the MMX execution unit. This means that 3DNow! is constrained to the same 64bit register width as MMX, fitting two floating point numbers into each.
This would seem to give Intel an advantage, as the Pentium III can fit twice as many floating point numbers into each register as the K6-III can. However, the K6-III boasts two independent instruction pipelines, X and Y, that can both carry out 3DNow! operations at the same time, and both manufacturers claim a peak performance of 2.0 gigaflops per second when using a 500MHz clock speed.
De besprekingen van de afzonderlijke systemen lijken me niet zo interessant voor ons Nederlanders. De algemene K6-III vs PIII info is dat misschien wel. Check 't bij www.gamespot.co.uk.