The document discusses the history and architecture of Intel processors including the i3 processor. It describes the Nehalem architecture that the i3 is based on, which improved on earlier Core architectures by establishing direct point-to-point communication between cores and memory. The document provides a detailed timeline of Intel processors from the 4004 in 1971 to the Sandy Bridge in 2011, noting improvements in performance, transistor count, and features with each generation. It focuses on the i3 processor and describes its 64-bit architecture and three main designs including the Nehalem.

1. i
Intel I3 Processor
Arpit
Section- E2E43, roll no.-A34, Reg. no.-11106840
Schoolof Electronics and communication
Lovely professional university, phagwara, Punjab
Abstract-This term paper on Intel i3 processor is
to define the role played by the Intel processor in
the field of data manipulation and graphic display.
This term paper present report on the architecture
of i3 processor made by Intel and improvement in
it from predecessor.
1-Introduction
The Intel i3 processor with Intel HD Graphics
offers an unparalleled computing Experience. This
revolutionary new architecture allows for new
levels of intelligent performance and advanced
media and graphics features—all while being
energy efficient. The processor include an
Integrated Memory Controller (IMC) making
them monolithic processors. The IMC and the
multiple processor cores are connected by the new
Quick Path Interconnect (QPI).
2-History
Intel is the world’s biggest company which is
famous for manufacturing the best processors ever
created in processor history. Every time they have
introduced something interesting and new in their
processors and devices. They introduced the series
of processors in 1940s and till now the advanced
version of their processors are still considered the
best. Some of the famous processor are from the
latest group of the family ‘core’. Intel core is the
processors i3 family which is famous for its latest
revolutionary structure and integrated architecture
which also provide the advantage of the parallel
computing. It’s also wonderful in providing the
users with the excellent graphical user interfaces.
Intel was founded in 1968 and its first product was
Intel 3101 produced in 1969, Intel first product
was world’s first solid state memory device with
16 x 4-bit SRAM. Intel 1103 came in 1970 was
world first DRAM product with 1K-bit PMOS
and it was used in HP 9800 series computers. By
1972, it became world bestselling memory chip,
defeating Magnetic memory
Intel MCS Family
MCS Family Intel CPU
MCS-4 4004
MCS-40 4040
MCS-8 8008
MCS-80 8080
MCS-85 8085
MCS-86 8086, 8088, 80186, 80188,
80286, 80386, 80486,
Pentiums
Intel 4004 produced in 1971 was world first
“general purpose” micro-processor and its Lead

2. ii
designers were– Ted Hoff, Federico Faggin, Stan
Mazor, and Masatoshi Shim. Intel 4004 have
Word width: 4-bit, 2300 transistors, Clock
frequency: 108KHz/500/740.It have 46
instructions, Registers: 16 x 4-bit, Stack: 12 x 4-
bit with Address space of 1Kb for program and
4Kb for data. In1972 came the Intel 8008 - world
first 8-bit microprocessor whose designers were–
Ted Hoff, Stan Mazor, Hal Feeney, and Federico
Faggin. Intel 8008 have word width: 8-bit, Clock
frequency: 800 KHz with 3500 transistors, 48
instructions, Registers: 6 x 8-bit, Stack: 17 x 7-bit
and Address space: 16KB. In 1974 came the Intel
8080 whose Lead designers were – Feder1ico
Faggin, Masatoshi Shima and Stan Mazor. "The
8080 really created the microprocessor market”. It
was used in MITS Altair 8800 in 1975 and termed
as “Microcomputer”. It have Word width: 8-bit
with 4500 transistors, Clock frequency: 2M-
3MHz and Address space: 64KB, Registers: 6 x 8-
bit, IO ports and Stack pointer.
Intel 16-bit Microprocessors came in 1978 when
Intel launched Intel 8086, first x86 family
microprocessor with Source compatibility with
80xx lines and its Followers were: 8088 (1979),
80186 (1982). It have 16-bit: all registers, internal
and external buses with 29,000 transistors, 5MHz
of clock frequency, 20-bit address bus, 4MB
address space and 16-bit register - segmentation
programming. IBM PC in 1981 used 8088
processor. Then came the Intel 80286 in 1982
with 134,000 transistors with clock frequency of
6M-8MHz and 1.5 MIPS it was used by IBM
PC/AT in 1984 it was Designed for multi-tasking
with MMU “protection mode”. Intel i432, Intel
first 32-bit microprocessor design it was “intel
Advanced Processor architecture”. Started in 1975
as the 8800, follow-on to the existing 8008 and
8080 CPUs, intended purely 32-bit, to be Intel
backbone in the 1980s, to support Ada, LISP,
advanced computations, the HW supports to all
the good terms with Object Oriented
programming and capability-based addressing,
multi-tasking and IPC, Multiprocessing, Fault
tolerance. But the Problems with it was two-chip
implementation, lack of cache, bit-aligned
variable length instructions. It Failed: ¼
performance of 286 as of 1982. Then in 1980 Intel
8087 came into picture with First floating-point
coprocessor for 8086 lines, its Performance was:
+20% ~ 5x; it have Floating registers form 8-level
stack: st0~st7 work in two mode: 8-bit/16-bit
follow IEEE 754 standard. Then follows: Intel
80287 – 16-bit and Intel 80387, 80487 – 32-bit.
Starting from Intel 80486DX, Pentium and later
model has on chip floating point unit and “DX”
was used for on-chip FP capability.
Intel introduced 80386 processor in 1985 it was
Intel first X86 32-bit flat memory model with
4GB space. 80386 instruction set, programming
model, and binary encodings were the common
denominator for all IA-32, i386, x86 series. It has
Paging to support VM, hardware debugging, first
use of pipeline it wasn’t necessarily a big
performance improvement over 80286,it contain
275,000 transistors with clock frequency of
12MHz initially, later 33MHz and 11.4MIPS.
Compaq: first PC using 80386, legitimize PC
“clone” industry.
In 1985 Intel produced i960. Intel 80960, Intel
was first RISC (Reduced instruction set
computing) microprocessor it was the Best-selling
embedded microcontroller at the time. It was
intended to replace 80286/i386, and for UNIX
systems, it used Berkeley RISC, flat memory
model, superscalar structure but Dropped after
acquiring Strong ARM in late 90’s when its
Price/performance/power remain no longer
competitive and team went to design another i386
processor.
Intel 80486 was another processor introduced by
Intel in 1989 with Improvements in Atomic
instructions, On-die 8KB SRAM cache, tightly
coupled pipelining: 1 IPC with clock frequency of
50MHz and 40MIPS on average and 50MIPS at
peak it has Integrated FPU (no longer need x87).
It was first chip which exceeds 1M transistors.
Now the competitor were more manufacturers,
AMD Am5x86, Cyrix Cx5x86, and Motorola
68040 in Macintosh Quadra.

3. iii
In 1989 Intel presented new masterpiece Intel i860
with entirely new RISC microprocessor, high-
performance FP operations it have 32-bit ALU
core, and 64-bit FPU (adder, multiplier, GPU)
along with Register sets: 32 x 32-bit integer, 16 x
64-bit FP. It GPU uses FP registers as 8 x 128-bit,
with iSIMD (Influenced MMX), 64/128-bit buses,
fetch 2 x 32-bit instructions. It was dropped in
mid-90 because Compiler support was mission
impossible and Context switch took 62 - 2000
cycles which was Unacceptable for GP CPU, it
was Incompatible with X86, Confusing the market
with Intel 486 CISC. It was being used in some
parallel computers and graphic workstations.
Intel introduced Pentium in
1993. Pentium means “5”, because court
disallowed number based trademark, later
Pentium was used in many Intel processors. P5
micro-architecture first used X86 superscalar
micro-architecture with dual integer pipelines,
separate D/I caches, 64-bit external data-bus and
60M-300MHz (at 75 MHz -126.5 MIPS) .It’s
Competitors were X86: AMD K5/K6, Cyrix 6x86,
etc. from Pentium processor Intel started to use a
cooler.
In 1996 Intel launched MMX which has SIMD
instruction set, introduced with P5 it has “Matrix
Math Extensions”, mainly for graphics and 8 x 64-
bit integer registers MM0 ~ MM7, alias of FPU
ST0 ~ ST7. Integer was not enough soon due to
gfx cards. Intel introduced SSE in 1999 and
started with Pentium-III it have new XMM
register set with 70 new instructions. It has "Intel
Wireless MMX Technology" and then Intel
Pentium Pro in 1995, P6 (or i686) was completely
new apart from Pentium (P5) it had no. of
transistors: Pentium 3.1M, Pentium MMX 4.5M,
Pentium Pro 5.5M with Speculative execution,
RISC-like micro-ops and three pipelines, 2
integer, 1 for floating point. Innovative on-
package level-2 cache but manufacturing did
allow on-die L2 cache it had Same CPU clock
rate, non-blocking, SMP advantage. Dies had to
be bonded early, it had Low yield rate and high
price it had36-bit address bus (PAE), low 16-bit
performance but Performance was better than best
RISC with SPECint95.
Pentium II by Intel in 1997 had 7.5M transistors
and Slot replaced Socket with a daughterboard,
solved the issues of off-package L2 cache in
Pentium Pro with half CPU clock. It implemented
MMX, improved 16-bit performance. Celeron and
Xeon was launched in 1998, Celeron: no on-die
L2-cache. And Pentium II Xeon: L2-cache,
100MT/s, SMP. Intel launched Pentium III in
1999 it introduced SSE for FP and vector
processing it had on-die L2 cache with .18um
Coppermine. Intel then Streaming SIMD
Extensions in 1999 in which MMX uses FP
registers for SIMD data, and has only integer
SIMD, SSE introduces separate XMM registers.
Intel Xscale came in light in 1997 when Intel
acquired Strong ARM from DEC, 1997 to replace
the RISC processors i860 and i960. It had Strong
ARM implemented ARMv4 ISA. It’s Successor,
Xscale implemented ARMv5 with Seven-stage
integer and an eight-stage memory super pipelined
microarchitecture, 32KB data cache and 32KB
instruction cache.• Xscale processor family had
Application Processors (with the prefix PXA), I/O
Processors (with the prefix IOP), Network
Processors (with the prefix IXP), Control Plane
Processors (with the prefix IXC).• Intel sold
Xscale PXA business to Marvell in 2006.
Intel Itanium was in limelight in 2001 which was
originated from HP, EPIC: explicitly parallel
instruction computing. All believed EPIC would
supplant RISC and CISC. Compaq and SGI gave
up Alpha and MIPS, Microsoft and SUN etc.
developed Operating system for it and in 1999,
Intel named it Itanium it had Speculation,
prediction, predication, and renaming with 128
integer registers, 128 FP registers, 64 one-bit
predicates, and eight branch registers 128-bit
instruction word has 3 instruction, dual-issue, max

4. iv
6 IPC, X86 support in HW initially and then
purely in SW.
Intel introduced Pentium 4 in 2000 with Net Burst
microarchitecture (P68, successor to P6), it Pursue
higher frequency, smaller IPC with Hyper
Pipelined: 20-stage Willamette. It had Rapid
Execution Engine: Two ALUs in the core are
double-pumped and execution Trace Cache,
SSE2, L3-cache (Extreme Edition). It was
confined with Hyper-Threading Technology. But
its performance worse than Northwood with
similar clock as designed to be 10GHz, but
achieved 3.8GHz. Core-based: 27W,
Pentium4:115W, Pentium4M:88W. Then comes
Pentium D – Dual-core which was abandoned due
to High power consumption and heat intensity and
Inability to increase clock speed, and inefficient
pipeline. Intel introduced Pentium M in 2003
derived From Pentium III, based on P6
microarchitecture. FSB interface of Pentium 4,
SSE2, much larger cache, improved
decoding/issuing FE, L2 cache only switches on
the portion being accessed. It has dynamically
variable clock frequency and core voltage it has
1.6 GHz Pentium M performance > 2.4 GHz
Pentium 4-M. Next generation of it released as
Intel Core brand on Jan 2006. Core 2: Intel-64
Core microarchitecture came in light in July 2006.
It has larger cache in size. Then comes the Intel
Tick-Tock Model which was introduced since
2007 to describe progress cadence where “Tick“:
shrinking of process technology – same
microarchitecture. And “Tock“: new
microarchitecture – same process. Tick-Tock is
expected alternating every year.
Intel
Nehalem came in 2008 it was successor of Core
micro-architecture and was planned as Net burst
evolution, but then a completely different design
of microarchitecture with size of 45nm. It was
Multi-core with on-package GPU and integrated
memory controller, Integrated PCI-E and DMI
replacing Northbridge. It had level branch
predictor and 20% gain performance/clock, 30%
cut power/performance and on this architecture
Intel introduced Core i3, i5, i7, Celeron, Pentium,
Xeon. Intel introduced Atom Processors in 2008
which was based on Bonnell microarchitecture,
45nm in size with dual-issue in order, 16-stage
pipeline and only around 4% of instructions
produce multiple micro-operations. It can contain
both a load and a store with an ALU operation
with Partial revival of old principle in P5 and 486
for performance/watt.
Intel Sandy Bridge came into light in 2011, it was
new microarchitecture after Nehalem, 32nm in
size and it shared L3 cache for cores, including
GPU, it has two load/store ops/cycle for memory
channel.in this there is Ring bus interconnect
between Cores, Graphics, Cache and System
Agent Domain. As compared to Nehalem, 17%
gain in performance/clock over Lynnfield, 2x
graphics over Clarkdale and then in 2012 came
the Ivy Bridge architecture with, size of 22nm and
3D gates.
3-Architecture
Intel i3 is a 64 bit microprocessor and is available
in different versions depending on different
architecture, and there are three main architecture
on which Intel i3 processor is designed.
a) Nehalem Computer Architecture
The predecessor to Nehalem, Intel’s Core
architecture, made use of multiple cores on a
single die to improve performance over traditional
single-core architectures. But as more cores and
processors were added to a high-performance
system, some serious weaknesses and bandwidth
bottlenecks began to appear. After the initial
generation of dual-core Core processors, Intel
began a Core 2 series processor which was not
much more than using two or more pairs of dual-

5. v
core dies. The cores communicated via system
memory which caused large delays due to limited
bandwidth on the processor bus. Adding more
cores increased the burden on the processor and
memory buses, which diminished the performance
gains that could be possible with more cores. The
new Nehalem architecture sought to improve
core-to-core communication by establishing a
point-to-point topology in which microprocessor
cores can communicate directly with one another
and have more direct access to system memory.
The approach to the Nehalem architecture is more
modular than the Core architecture which makes it
much more flexible and customizable to the
application. The architecture really only consists
of a few basic building blocks. The main blocks
are a microprocessor core (with its own L2 cache),
a shared L3 cache, a Quick Path Interconnect
(QPI) bus controller, an integrated memory
controller (IMC), and graphics core. With this
flexible architecture, the blocks can be configured
to meet what the market demands. For example,
the Bloomfield model, which is intended for a
performance desktop application, has four cores,
an L3 cache, one memory controller, and one QPI
bus controller. Server microprocessors like the
Beckton model can have eight cores, and four QPI
bus controllers. The architecture allows the cores
to communicate very effectively in either case.
In Nehalem architecture I3 has 32 nm process
technology with following specifications: 2
physical cores/4 threads, 64 Kb L1 cache, 512 Kb
L2 cache, 4 MB L3 cache, Introduced January,
2012, Socket 1156 LGA, 2-channel DDR3,
Integrated HD GPU with different variants.
b) Sandy bridge/ Ivy bridge architecture
Sandy Bridge is the codename for
a microarchitecture developed by Intel beginning
in 2005 for central processing units in computers
to replace the Nehalem microarchitecture. Intel
demonstrated a Sandy Bridge processor in 2009,
and released first products based on the
architecture in January 2011 under
the Core brand. Sandy Bridge implementations
targeted a 32 nanometer manufacturing process
based on planar double-gate transistors. Intel's
subsequent product, codenamed Ivy Bridge, uses
a 22 nanometer process.
The Ivy Bridge die shrink, known in the Intel
Tick-Tock model as the "tick", is based on Fin
FET (non-planar, "3D") tri-gate transistors. Intel
demonstrated the Ivy Bridge processors in 2011.
Developed primarily by the Israel branch of Intel,

6. vi
the codename was originally "Gesher" (meaning
"bridge” in Hebrew). The name was changed to
avoid being associated with the defunct Gesher
political party; the decision was led by Ron
Friedman, vice president of Intel managing the
group at the time. Intel demonstrated a Sandy
Bridge processor with A1 stepping at
2 GHz during the Intel Developer Forum in
September 2009. Upgraded features from
Nehalem include:
 32 KB data + 32 KB instruction L1
cache (4 clocks) and 256 KB L2
cache (11 clocks) per core.
 Shared L3 cache includes the processor
graphics (LGA 1155).
 64-byte cache line size.
 Two load/store operations per CPU cycle for
each memory channel.
 Decoded micro-operation cache and enlarged,
optimized branch predictor.
 Improved performance for transcendental
mathematics. With 256-bit/cycle ring bus
interconnect between cores, graphics, cache
and System Agent Domain.
 Intel Quick Sync Video, hardware support for
video encoding and decoding. And it have up
to 8 physical cores or 16 logical cores
through Hyper-threading.
 Integration of the GMCH (integrated graphics
and memory controller) and processor into a
single die inside the processor package. In
contrast, Sandy Bridge's predecessor,
Clarkdale, has two separate dies (one for
GMCH, one for processor) within the
processor package. This tighter integration
reduces memory latency even more.
 A 14- to 19-stage instruction pipeline,
depending on the micro-operation cache hit or
miss.
Intel continues to drive platform enhancements
that increase the overall user experience. Some of
these enhancements include areas such as
connectivity, manageability, security, and
reliability, as well as compute capability. One of
the means of significantly increasing compute
capability is with Intel multi-core processors
delivering greater levels of performance and
performance-per-watt capabilities. The move to
multi-core processing has also opened the door to
many other micro-architectural innovations to
continue to even further improve performance.
Intel Core microarchitecture is one such state-of-
the-art micro architectural update that was
designed to deliver increased performance
combined with superior power efficiency. As
such, Intel Core microarchitecture is focused on
enhancing existing and emerging application and
usage models across each platform segment,
including desktop, server, and mobile.
4-Feature
Intel i3 is based on Hyper-Threading Technology
and the improvements to Intel Smart Cache
combine to create dynamic and adaptive
performance. Add the integration of the memory
controller and the graphics to the processor and the
Intel Core i3 processor gets things done faster
and more efficiently. Intel Hyper-Threading
Technology offers more computer muscle while
reducing wait time. Intel Smart Cache improves
responsiveness by providing faster access to
data. Intel HD Graphics is the ideal graphics
solution for your everyday visual computing needs.

7. vii
Performance has an immediate, impact on
what you do on your PC. Accelerate your
productivity, inspire your digital creations, and
enjoy video smoothness and music quality on
a system with the Intel Core i3 processor—the
smart choice for home and office. The basic
feature of the i3 are highly improved as compared
to the previous version of the processor by Intel,i3
offers the perfect accuracy and high performance
and response rate which in result provide the users
with the high throughput rates, also reduced time
in executing the programs by the processor. The
Intel i3 processor is fully equipped by the latest HD
graphics with powerful and video engine that
provide smooth high quality display along with 3d
graphics capabilities. On the whole i3 processor
can be considered as the high graphical and
multimedia display processors for daily computing.
Intel i3 processor also provide hyper threading
technology to its users which enable the
multitasking capability of both user and system.
The systems with i3 processor can perform
execution and compilation of two tasks
simultaneously without causing the executing
delays and debuggers errors. They are also so
responsive that output of the program can be
generated at the same time too. We can easily say
that Intel i3 are the best choice for homes and
offices. More than seven applications can run
simultaneously on the system with i3 processor
built on the motherboards. I3 processor are the
smarter, faster and more adaptive in all kinds of
networking scheme. They can be used with any of
the hard disk configurations. They are also famous
in the market with the name of desktop processor
because of the great quality resolution they have.
Integrated components on the motherboards also
makes i3 processors unique in their architecture
and circuit installations.
I3 processors have 3.06 GHz and 2.93 GHz core
speed which is very high as compared to the
previous configurations of the Intel processors.
They have 4 processing threads that enables
multithreading and multitasking. 4 megabyte
additional cache memory is also provided inside
the processor. Double channeled DDR with 1333
MHz memory sequence.
5-Advantage
I3 processors have remarkable advantages that are
of great use in the field of computers and
technology. Some of them are: dual processor have
the capability to run two independent program with
one hardware. I3 processor have improved Pentium
base, they have totally new architecture with more
integrations and high speed performance structure.
Hyper threading technology also enables the user
to enjoy the high speed and better performance
with more reliable outputs. It has 4 tasking threads
that allows user to easily execute 3-4 programs at a
time. Smart memory and cache sequence allows
user to enjoy the optimized and efficient data
access both direct and sequentially. Effective
shortcuts have reduced the access time of the file
and system. HD graphical features also make these
processors distinguished from the others because
they are considered as best in their resolution. I3
have advantage because it have different power
management and thermal management unit. Intel
Core processors include an Integrated Graphics
Device (IGD) providing excellent graphical
capabilities. For the Intel Core processor models
that do not have an IGD, a PCI Express (PCIe)
interconnect is integrated into all processors to
support up to PCIe x16 video cards.
6) Difference from predecessor
Ivy Bridge CPUs (3rd gen) are basically on
average 6% more processing power than Sandy
Bridge CPUs (2nd gen). They also use a little less
power. The main difference is the new Intel HD
4000 which is on average around 35% - 40% more
powerful than the older Intel HD 3000. Sounds
impressive, but it is still relatively weak compared
to desktop graphic cards. The Intel HD 4000 is a
bit slower than AMD's most powerful graphic
core found in the older Llano A8 APUs.
Compared to desktop graphic cards, the mobile
version of the Intel HD 3000 is a little slower than
the Radeon HD 5450, while the Intel HD 4000
would be a little slower than the Radeon HD
5550.

8. viii
I3 processor is different from the predecessor
because it have: Integrated Memory Controller
(IMC) where, IMC offers high bandwidth and low
latency for memory I/O leading to faster memory
read and write cycle’s along with Hyper-
Threading Technology (HT); Hyper-Threading
technology allows one physical processor core to
be seen as two logical processors by firmware and
software. Each logical processor can execute a
thread allowing for two concurrent threads to be
executed. And Turbo Boost Technology - A
feature that automatically allows processor cores
to run faster than its base operating frequency
when other cores are not being utilized. Automatic
performance boost. It also provide service of
Quick Path Interconnect (QPI) which provide a
new high bandwidth, low latency bus that
connects processor cores and memory.
7) List of 64 bit i3 processor
 Sandy Bridge – 32 nm process technology
 2 physical cores/4 threads
 32+32 Kb (per core) L1 cache
 256 Kb (per core) L2 cache
 3 MB L3 cache
 624 million transistors
 Introduced January, 2012
 Socket 1155 LGA
 2-channel DDR3-1333
 Variants ending in 'T' have a peak TDP of
35 W, others 65 W
 Integrated GPU
 All variants have peak GPU turbo
frequencies of 1.1 GHz
 Variants ending in 'T' have GPUs
running at a base frequency of
650 MHz; others at 850 MHz
 Variants ending in '5' have Intel HD
Graphics 3000 (12 execution units);
others have Intel HD Graphics 2000
(6 execution units)
 Variants
 i3-2100T – 2.5 GHz
 i3-2120T – 2.6 GHz
 i3-2100 – 3.1 GHz
 i3-2102 – 3.1 GHz
 i3-2105 – 3.1 GHz
 i3-2120 – 3.3 GHz
 i3-2125 – 3.3 GHz
 i3-2130 – 3.4 GHz

Ivy Bridge – 22 nm Tri-gate transistor process
technology
 2 physical cores/4 threads
 32+32 Kb (per core) L1 cache
 256 Kb (per core) L2 cache
 3 MB L3 cache
 Introduced September, 2012
 Socket 1155 LGA
 2-channel DDR3-1600
 Variants ending in '5' have Intel HD
Graphics 4000; others have Intel HD
Graphics 2500
 All variants have GPU base frequencies of
650 MHz and peak GPU turbo
frequencies of 1.05 GHz
 TDP 55 W
 Variants
 i3-3220T – 2.8 GHz
 i3-3240T – 2.9 GHz
 i3-3220 – 3.3 GHz
 i3-3225 – 3.3 GHz
 i3-3240 – 3.4 GHz
References
1-A Brief History of Intel CPU Microarchitectures
by Xiao-Feng Li-2/10/13.
2- White paper on inside Intel Core
Microarchitecture by Intel.
3-Intel Nehalem Computer Architecture by Trent
Rolf/University of Utah Computer
Engineering/CS 6810 /Final Project/December
2009
4-Intel processor 4th generation/datasheet by Intel
5-http://www.wifinotes.com/computer-hardware-
components/I3-intel-processors.html
6-
http://en.wikipedia.org/wiki/List_of_Intel_microp
rocessors#Core_i3