AMD Turion 64 X2 Meets Intel's Mobile Core 2 Duo
In contrast, AMD has introduced a different brand for its mobile processors: the Turion 64. While Turion CPUs with a single processing core have been available for almost two years, the dual-core version Turion 64 X2 (Taylor and Trinidad cores) was launched in late spring of 2006; this was shortly before Intel launched its Core 2 Duo micro architecture, and clearly earlier than the mobile Core 2 Duo. Adoption of the Turion 64 X2 was slower, however, as there were fewer system designs available. In addition, Intel has been doing a great job with its Centrino brand, which basically bundles the mobile processor, mobile core logic and mobile wireless solution.
Unfortunately, it has become impossible for non-enthusiasts to decipher AMD's and Intel's model numbers. Both companies follow their own nomenclatures to express clock speed, cache size, features and energy consumption within a single model number. Moving away from gigahertz numbers as the sole figure for performance makes a lot of sense, as clock speed has been only one part of the performance equation in recent years. Unfortunately, the product nomenclatures require some knowledge in order to determine exactly what, for example, a Turion 64 X2 TL56 is.
While there are still many Pentium M and Turion 64 notebooks on the market, not to mention all the low-cost processors that we haven't even mentioned here, the future clearly belongs to dual core processors. Two CPU cores not only translate into better performance, they also provide excellent system responsiveness - this is why we recommend against purchasing a single core system today if you care about a future-proof notebook. Even the energy requirements - which should be as low as possible to achieve long battery runtime - are negligible, because modern multi-core processors shut down transistors or even whole processor segments when they aren't used.
