Clarkdale (microprocessor)

Clarkdale

Produced	January 7, 2010
Designed by	Intel
Max. CPU clock rate	2.8 GHz to 3.46 GHz
Min. feature size	32 nm
Instruction set	x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES-NI
Microarchitecture	Nehalem
CPUID code	02065x
Product code	80616
Cores	2
L2 cache	2x256kb
L3 cache	4 MB
Application	Desktop
Socket(s)	LGA 1156
Brand name(s)	Core i5-6xx Core i3-5xx Pentium G6xxx Celeron G1xxx Xeon L340x

Clarkdale is the code name for an Intel processor^{[clarification needed]}, initially sold as desktop Intel Core i5 and Core i3 and Pentium^[1]. It is closely related to the mobile Arrandale processor; both use dual-core dies based on the 32 nm Westmere version of the Nehalem microarchitecture and have integrated Graphics as well as PCI Express and DMI links.

Clarkdale is the successor of the 45 nm Core microarchitecture-based Wolfdale processor that is used in the many desktop Intel Core 2, Celeron and Pentium Dual-Core processors. While Wolfdale typically used both a north bridge and a south bridge, Clarkdale already contains the major north bridge components, which are the memory controller, PCI Express for external graphics, integrated graphics and the DMI connector, making it possible to build more compact systems without a separate northbridge or discrete graphics as Lynnfield. The Clarkdale processor package contains two dies: the actual 32 nm processor with the I/O connections and the 45 nm graphics controller with the memory interface^[2]. The CPUID for Clarkdale is family 6, model 37 (2065x).

Brand names

Clarkdale processors are sold under the Intel Core, Pentium and Celeron brand names, with varying feature sets. The Core i5 versions generally have all features enabled, with only the Core i5-661 model lacking Intel VT-d and TXT like the Core i3, which also does not support Turbo Boost and the AES new instructions. In addition, the Pentium and Celeron versions do not have SMT, and they can only use a reduced amount of third-level cache.

The Xeon L340x line has a lower clock frequency and thermal design power, and supports unbuffered ECC memory in addition to the features of the Core i5-6xx, but has support for the integrated graphics disabled.

Brand Name	Model (list)	Logo	L3 Cache size	Thermal Design Power
Celeron	G1xxx		2 MB	73 W
Pentium	G6xxx		3 MB
Core i3	i3-5xx		4 MB
Core i5	i5-6xx			73-87 W
Xeon	L340x		4 MB	30 W

See also

• Intel Core
• Intel Core i5
• Wolfdale (microprocessor)
• Arrandale (microprocessor)
• Lynnfield (microprocessor)

External links

• IDF: Intel Clarkdale Up Close and Personal

References

1. ^ http://www.xbitlabs.com/news/cpu/display/20090813091122_Intel_May_Unveil_Microprocessors_with_Integrated_Graphics_Cores_at_Consumer_Electronics_Show.html
2. ^ http://www.brighthub.com/computing/hardware/articles/26620.aspx