Again, the dual-core Core 2 Duo finishes up our compression job in short order, faster than the quad-core Phenom X4 or the dual-core Athlon X2. The interesting question this raises is as follows: is our platform comparison being negatively influenced by the 740G chipset or can we really get better performance out of a dual-core machine?
We fired our 780G configuration up to find out, dropping in the same Phenom X4 9850, memory, and hard drive. This way, the higher-end AMD CPU would at least enjoy the benefit of its HyperTransport 3.0 interconnect. Our 2:54 result for the same test suggests that this isn’t an issue of platform limitation. Rather, Intel’s architecture is simply enabling better performance, even in the face of a quad-core competitor. Only when the application is explicitly written to take advantage of those four cores, such as in the case of our DivX test, is the outcome in favor of more parallelism.
Same story here. The Core 2 Duo serves up better performance in Photoshop, while both AMD chips at 2.5 GHz serve up relatively similar filtering speed.