Clarkdale is the codename for
Intel
Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...
's first-generation
Core i5,
i3 and Pentium dual-core desktop processors. It is closely related to the mobile
Arrandale processor; both use dual-core dies based on the
32 nm
The "32 nm" node is the step following the "45 nm" process in CMOS (MOSFET) semiconductor device fabrication. "32-nanometre" refers to the average half-pitch (i.e., half the distance between identical features) of a memory cell at this technolo ...
Westmere microarchitecture and have integrated Graphics,
PCI Express
PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe, is a high-speed standard used to connect hardware components inside computers. It is designed to replace older expansion bus standards such as Peripher ...
and
DMI
DMI may refer to:
Organizations
* Danish Meteorological Institute
* Data Management Inc., a time-and-attendance software company
* Dead Man Incorporated, a predominantly white prison-gang formed in Maryland
* Development Media International, a ...
links built-in.
Clarkdale is the successor of the
Wolfdale used in desktop
Intel Core 2
Intel Core 2 is a processor family encompassing a range of Intel's mainstream 64-bit x86-64 single-, dual-, and quad-core microprocessors based on the Core microarchitecture. The single- and dual-core models are single- die, whereas the quad-co ...
,
Celeron
Celeron is a series of IA-32 and x86-64 computer microprocessor, microprocessors targeted at low-cost Personal computer, personal computers, manufactured by Intel from 1998 until 2023.
The first Celeron-branded CPU was introduced on April 15, ...
and
Pentium Dual-Core
The Pentium Dual-Core brand was used for mainstream x86-architecture microprocessors from Intel from 2006 to 2009, when it was renamed to Pentium. The processors are based on either the 32-bit '' Yonah'' or (with quite different microarchitectu ...
processors. Unlike its predecessor, Clarkdale already contains the major
north bridge components, such as memory controller, PCI Express for external graphics, integrated graphics and the DMI connector, making it possible to build more compact systems without a separate north bridge or discrete graphics like
Lynnfield.
The Clarkdale processor package contains two dies: the 32 nm processor die with the I/O connections, and the 45 nm graphics and integrated memory controller die. Physical separation of the processor die and memory controller die resulted in increased memory latency.
The
CPUID
In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from " CPU Identification") allowing software to discover details of the processor. It was introduced by Int ...
for Clarkdale is family 6, model 37 (2065x). The mobile equivalent of Clarkdale is
Arrandale.
Brand names
Clarkdale processors are sold under the
Intel Core
Intel Core is a line of multi-core (with the exception of Core Solo and Core 2 Solo) central processing units (CPUs) for midrange, embedded, workstation, high-end and enthusiast computer markets marketed by Intel Corporation. These processors ...
,
Pentium
Pentium is a series of x86 architecture-compatible microprocessors produced by Intel from 1993 to 2023. The Pentium (original), original Pentium was Intel's fifth generation processor, succeeding the i486; Pentium was Intel's flagship proce ...
and
Celeron
Celeron is a series of IA-32 and x86-64 computer microprocessor, microprocessors targeted at low-cost Personal computer, personal computers, manufactured by Intel from 1998 until 2023.
The first Celeron-branded CPU was introduced on April 15, ...
brand names, with varying feature sets. The Core i5 versions generally have all features enabled, with the Core i5-661 and Core i5-655K models lacking
Intel VT-d
x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU.
In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-a ...
and
TXT like the Core i3, which also does not support
Turbo Boost
Intel Turbo Boost is Intel's trade name for central processing units' (CPUs') dynamic frequency scaling feature that automatically raises certain versions of its operating frequency when demanding tasks are running, thus enabling a higher result ...
and
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
Cache, caching, or caché may refer to:
Science and technology
* Cache (computing), a technique used in computer storage for easier data access
* Cache (biology) or hoarding, a food storing behavior of animals
* Cache (archaeology), artifacts p ...
.
The Xeon L340x line has a lower clock frequency and thermal design power, and supports unbuffered
ECC memory
Error correction code memory (ECC memory) is a type of computer data storage that uses an error correction code (ECC) to detect and correct ''n''-bit data corruption which occurs in memory.
Typically, ECC memory maintains a memory system immun ...
in addition to the features of the Core i5-6xx, but has support for the integrated graphics disabled.
Importantly, although the
memory controller
A memory controller, also known as memory chip controller (MCC) or a memory controller unit (MCU), is a digital circuit that manages the flow of data going to and from a computer's main memory. When a memory controller is integrated into anothe ...
in Clarkdale processors is on-package, it is on a separate
die from the CPU cores, and thus has increased latency compared to
processor architectures which integrate it on-die with the main CPU cores.
See also
*
Intel Core
Intel Core is a line of multi-core (with the exception of Core Solo and Core 2 Solo) central processing units (CPUs) for midrange, embedded, workstation, high-end and enthusiast computer markets marketed by Intel Corporation. These processors ...
*
Intel Core i5
*
Wolfdale (microprocessor)
Wolfdale is the code name for a processor from Intel that is sold in varying configurations as Core 2 Duo, Celeron, Pentium and Xeon. In Intel's Tick-Tock cycle, the 2007/2008 "Tick" was Penryn microarchitecture, the shrink of the Merom micro ...
*
Lynnfield (microprocessor)
Lynnfield is the code name for a quad-core processor from Intel released in September 2009. It was sold in varying configurations as Intel Core i5, Core i5-7xx, Intel Core i7, Core i7-8xx or Xeon X34xx. Lynnfield uses the Nehalem (microarchitectur ...
*
List of Macintosh models grouped by CPU type
This list of Mac models grouped by CPU type contains all central processing units (CPUs) used by Apple Inc. for their Mac (computer), Mac computers. It is grouped by processor family, processor model, and then chronologically by Mac models.
Moto ...
References
External links
IDF: Intel Clarkdale Up Close and Personal
{{Intel processors, nehalem
Intel microprocessors