Arrandale Processor

What is Arrandale Processor?

Arrandale basically refers to the core name given by Intel to the dual-core, mainstream microprocessors built on the x86-64 microarchitecture. These processors are typically built on a 32 nm fabrication process.

From a technical perspective, the Arrandale processors use a 5-series chipset and belong to the 1st generation of Westmere-based Core mainstream CPUs that support 64-bit word size.

Understanding Arrandale Processor

What is Arrandale Processor

The term Arrandale signifies the codename of the Intel mobile processor family, built on x86-64 microarchitecture and a 32 nm technology node.

These processors are successors to the Clarksfield processors and predecessors of the Sandy Bridge mobile processors.

These processors are also the successors of the Penryn processors that are built on the 45 nm core microarchitecture.

Unlike Penryn, the Arrandale processors do not contain a separate Northbridge and a Southbridge.

This is because the architecture of the Arrandale processor already includes most of the major components found on the Northbridge. These are:

With such inclusions already made in the chip, it makes things much easier for the designers to build more compact devices.

Launched on January 7, 2010, the package of this particular processor typically comes with two dies. These are:

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However, this physical separation of the processor die with the memory controller die results in memory latency greater than before.

The design of this architecture is pretty similar to the Clarkdale desktop processor, especially in the following aspects:

Brand names

The Arrandale processors are sold under different brand names such as:

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However, it is only the Intel Core i7 variants that come with all of the features mentioned later on in the article, and use the full Level 3 cache.

Also, the names of the processors ending in E in place of an M are usually the embedded versions of the processors that come with specific features to support the following:

On the other hand, the standard mobile versions of the Arrandale processors do not support ECC memory and come with only one single PCIe port.

And, as for the Celeron variants of Arrandale processors, they typically come with the smallest size of Level 3 cache, measuring only 2 MB.

Significant features

Some of the notable features of the Arrandale processors, apart from those mentioned above, are summarized for you as follows:

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Instruction Set Architecture and extension support

Just like most of the Intel processors, the Arrandale processors also support an x86-64 Instruction Set Architecture. Along with it, the CPU architecture also supports a variety of extensions such as:

However, the Celeron variants do not support all of these instruction extensions.

On the other hand, there are a few specific models of Arrandale processors that also support the following, in addition to the above extensions:


Released on January 7, 2010, the Arrandale processors expanded the Intel Core i3 and i5 mobile processor families.

The features and functionalities of these processors are much improved over their predecessor, the Clarksfield, and offer a reasonably high level of performance in spite of being built on a 32 nm process.