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Not listed in the table above are the improvements to the cache subsystem and memory accesses on Core 2 Duo.

The slightly deeper pipeline helps increase clock speeds on Merom (which will bump performance a bit), but the added decode and execution width will increase overall performance. You can get the details from the table above or from our previous articles on Intel's Core 2 processors, but simply put Merom is wider and slightly deeper than Yonah. Obviously clock speeds (both CPU and FSB) are lower because these things will be going in notebooks where power consumption is more of a concern, but other than that the architectures are identical.Ĭompared to Yonah, Merom has some very clear advantages on the surface the larger L2 cache is responsible for the 140M increase in transistor count, but architecturally the improvements extend far beyond that. The table below should help summarize the differences:Ĭompared to the desktop Core 2 Duo (Conroe), the mobile version is architecturally no different. Despite the similarities in name and in architecture, there are some fairly major differences between the two CPUs, some of which won't become apparent until next year.

Unlike its desktop predecessor, Core 2 Duo comes from the same genealogy as the Core Duo. We've spent a lot of time comparing Intel's Core architecture to NetBurst and AMD's K8 however, we've stayed away from quite possibly one of the most confusing comparisons: Core 2 Duo vs.