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Intel

Core i5 661

▲ 515 ▼

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

VS

Average Bench: 32% (529th of 1182)

Based on 1,107 user benchmarks.  Devices: BFEBFBFF00020652, BFEBFBFF00020655 Model: Intel(R) Core(TM) i5 CPU 661 @ 3.33GHz
Poor: 22%Average: 32% Great: 36%
Gaming
Gaming 32%
Sail boat
Desktop
Desktop 46%
Yacht
Workstation
Workstation 20%
Surfboard

Popular builds with this CPU

Poor average bench

The Intel Core i5 661 averaged 67.9% 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 76Pts
Avg. Dual Core Mixed Speed 132Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core i5 661 is just 13.9%. 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 196Pts
Avg. Octa Core Mixed Speed 194Pts
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Average Bench

(Based on 1,107 samples)
Rank 52932%
Min Avg Max
53 1-Core 76 86.5
92 2-Core 132 163
50.1% 104 Pts
Min Avg Max
128 4-Core 191 216
134 8-Core 194 217
26.2% 192 Pts
Min Avg Max
142 64-Core 196 218
13.1% 196 Pts
User Benchmarks Bench Normal Heavy Extreme
The fastest CPU (mainstream) averages a speed of 100%
LGA1156, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.45 GHz (avg)
36% Below average
1-Core 76.7
2-Core 133
51% 105 Pts
4-Core 220
8-Core 218
30% 219 Pts
64-Core 213
14% 213 Pts
Socket 1156, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.45 GHz (avg)
34.9% Below average
1-Core 79.4
2-Core 132
51% 106 Pts
4-Core 212
8-Core 209
29% 210 Pts
64-Core 210
14% 210 Pts
XU1, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz
34.3% Below average
1-Core 84.2
2-Core 163
58% 123 Pts
4-Core 202
8-Core 202
28% 202 Pts
64-Core 199
13% 199 Pts
LGA1156, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz
33.6% Below average
1-Core 75.3
2-Core 142
52% 109 Pts
4-Core 197
8-Core 213
28% 205 Pts
64-Core 214
14% 214 Pts
CPU1, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.45 GHz (avg)
31.8% Below average
1-Core 58.1
2-Core 128
43% 92.8 Pts
4-Core 198
8-Core 185
26% 192 Pts
64-Core 212
14% 212 Pts
Socket 1156, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.45 GHz (avg)
30.4% Below average
1-Core 74.3
2-Core 130
49% 102 Pts
4-Core 176
8-Core 194
25% 185 Pts
64-Core 211
14% 211 Pts
XU1, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.3 GHz (avg)
26.1% Poor
1-Core 57.1
2-Core 137
44% 97.1 Pts
4-Core 155
8-Core 152
21% 153 Pts
64-Core 144
10% 144 Pts
LGA 1156, 1 CPU, 2 cores, 4 threads
Base clock 3.35 GHz, turbo 3.45 GHz (avg)
15.7% Very poor
1-Core 54.5
2-Core 69.4
31% 62 Pts
4-Core 85.3
8-Core 98.9
12% 92.1 Pts
64-Core 102
7% 102 Pts
1,107 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,556,366 CPUs tested.

 Prices

AmazonUS $2208 hrs
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Typical Core i5 661 Builds (Compare 41,890 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 23%
Surfboard
Desktop
Desktop 46%
Yacht
Workstation
Workstation 17%
Surfboard

Disqualified System: bin bin

CPU
Core i5 661Intel  $220Bench 32%, 1,107 samples1x
GPU
GTX 1050-TiNvidia  $150Bench 31%, 399,276 samples1,870x
HD 2000 (Desktop 1.1 GHz)IntelBench 1%, 70,210 samples1,660x
GTX 1060-6GBNvidia  $270Bench 56%, 658,194 samples1,282x
SSD
850 Evo 250GBSamsung  $86Bench 106%, 458,148 samples1,020x
850 Evo 500GBSamsung  $102Bench 112%, 348,759 samples658x
SSDNow V300 120GBKingston  $60Bench 54%, 198,640 samples640x
RAM
2x2GBUnknownBench 20%, 248,234 samples1,961x
4x2GBUnknownBench 26%, 103,899 samples1,364x
1x4GBUnknownBench 25%, 75,883 samples605x
EDIT WITH CUSTOM PC BUILDER Value: 35% - Below average Total price: $456

Popular Core i5 661 systems:

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Processor Rankings (Price vs Performance) August 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 which is geared towards gamers. 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

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Speed Comparisons

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1182 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 $143Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $196AMD RX 580 $167Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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