Clarkdale (microprocessor)

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)

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).

Contents

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 Intel i3 Logo.png 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

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

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