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Intel

Core i5 661

▲ 527 ▼

2 Cores, 4 Threads @3.33 GHz, Clarkdale.
Release date ≤ Q4 2013.

Average Bench: 40.7% (505th of 1206)

Based on 1,178 user benchmarks.  Devices: BFEBFBFF00020652, BFEBFBFF00020655 Model: Intel(R) Core(TM) i5 CPU 661 @ 3.33GHz
Poor: 29%Average: 40.7% Great: 46%
Gaming
Gaming 41%
Speed boat
Desktop
Desktop 46%
Yacht
Workstation
Workstation 20%
Surfboard

Popular builds with this CPU

Below average average bench

The Intel Core i5 661 averaged 59.2% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. Single Core Mixed Speed 75.6Pts
Avg. Dual Core Mixed Speed 131Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core i5 661 is just 17.1%. This is a relatively narrow range which indicates that the Intel Core i5 661 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Mixed Speed 193Pts
Avg. Octa Core Mixed Speed 192Pts
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Average Bench

(Based on 1,178 samples)
Rank 50540.7%
Min Avg Max
53.4 1-Core 75.6 86.3
87.9 2-Core 131 162
49.8% 103 Pts
Min Avg Max
123 4-Core 189 215
130 8-Core 192 215
26% 191 Pts
Min Avg Max
135 64-Core 193 215
13% 193 Pts
User Benchmarks Bench Normal Heavy Extreme
The fastest CPU (mainstream) averages a speed of 100%
Socket 1156, 1 CPU, 2 cores, 4 threads
Base clock 4.25 GHz, turbo 4.4 GHz (avg)
57.8% Above average
1-Core 107
2-Core 184
70% 146 Pts
4-Core 271
8-Core 261
36% 266 Pts
64-Core 250
17% 250 Pts
LGA1156, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.45 GHz (avg)
46.1% Average
1-Core 84.8
2-Core 154
57% 120 Pts
4-Core 214
8-Core 209
29% 212 Pts
64-Core 212
14% 212 Pts
1,178 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 22,611,589 CPUs tested.

 Prices

AmazonUS $22015 mins
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Typical Core i5 661 Builds (Compare 48,082 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 26%
Raft
Desktop
Desktop 45%
Yacht
Workstation
Workstation 17%
Surfboard

Disqualified System: bin bin

CPU
Core i5 661Intel  $220Bench 41%, 1,178 samples1x
GPU
GTX 1050-TiNvidia  $155Bench 31%, 463,263 samples2,152x
HD 2000 (Desktop 1.1 GHz)IntelBench 1%, 78,404 samples1,943x
GTX 1060-6GBNvidia  $259Bench 57%, 731,336 samples1,472x
SSD
850 Evo 250GBSamsung  $55Bench 105%, 518,957 samples1,146x
A400 120GBKingston  $22Bench 60%, 65,912 samples778x
A400 240GBKingston  $27Bench 65%, 93,217 samples771x
RAM
2x2GBUnknownBench 20%, 259,818 samples2,200x
4x2GBUnknownBench 25%, 119,808 samples1,522x
1x4GBUnknownBench 25%, 91,156 samples721x
EDIT WITH CUSTOM PC BUILDER Value: 42% - Average Total price: $430

Popular Core i5 661 systems:

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  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
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Processor Rankings (Price vs Performance) December 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Specifications

Essentials

DescriptionIntel® Core™ i5-661 Processor (4M Cache, 3.33 GHz)
Code NameClarkdale
Launch DateQ1'10
Processor Numberi5-661
# of Cores2
# of Threads4
Cache4 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.2
Embedded Options AvailableNo
Lithography32 nm
VID Voltage Range0.6500V-1.4000V
Recommended Price$177.00
Clock Speed3.33 GHz
Max Turbo Frequency3.6 GHz
Bus Speed2.5 GT/s DMI
Max TDP87 W

Graphics

Processor GraphicsIntel® HD Graphics
Graphics Base Frequency900 MHz
# of Displays Supported2
Clear Video HD TechYes
Flexible Display InterfaceYes

Memory

Max Memory Size16 GB
Memory TypesDDR3 1066/1333
Memory Channels2
Memory Bandwidth21 GB/s
Physical Address Extensions36-bit

Expansion Options

PCI Express Revision2.0
PCI Express Configurations1x16, 2x8
Max # of PCI Express Lanes16

Data Protection

AES New InstructionsYes

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Thermal Monitoring TechnologiesNo
Turbo Boost Tech1.0
Hyper-Threading TechYes
VT-x with Extended Page Tables (EPT)Yes
Demand Based SwitchingNo
vPro TechNo

Package

Package Size37.5mm x 37.5mm
Graphics and IMC Lithography45 nm
Max CPU Configuration1
Sockets SupportedFCLGA1156
Processing Die Size81 mm2
# of Processing Die Transistors382 million
Graphics and IMC Die Size114 mm2
# of Graphics and IMC Die Transistors177 million

Platform Protection

Execute Disable BitYes
Trusted Execution TechNo

 Comments

Added n/a ago.
USA-User
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5,988

Liked (edit your comment) Add link

9 days ago.

ColdSpy
Avatar level
222

Average

9 days ago.

A higher end Clarkdale hyperthreaded dual core processor. Came with similar amount of cores as i3-540 but comes with performance boosting features such as turbo which boost operating frequency to determined clock. For most users might worth looking to spend $30 more for more powerful i5-750 which comes with 4 core and 4 thread. Still worth it for today albeit for light gaming and modern basic tasks.

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Speed Comparisons

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1206 Processors (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Processors FAQ
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
What is the GeekBench score?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $260Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $58
Intel Core i7-9700K $369Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $65SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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