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Intel

Core i7-3820

▲ 5584 ▼

4 Cores, 8 Threads @3.6 GHz, Sandy Bridge E.
Release date ≤ Q4 2013.

VS

Average Bench: 66.1% (186th of 1146)

more Based on 19,819 user benchmarks.  Devices: BFEBFBFF000206D7, , 0FEBFBFF000206D7, BFEBFBFF000206D6, 1FABFBFF000206D7 Models: Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz, Intel(R) Core(TM) i7-3820 CPU @ 3.60 GHz, Intel Core i7-3820 CPU @ 3.60GHz, Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz
Poor: 52%Average: 66.1% Great: 81%
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 49%
Yacht

Popular builds with this CPU

Above average average bench

The Intel Core i7-3820 averaged 33.8% 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

Single Core Integer Speed 95.4Pts
Multi Core Integer Speed 472Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is 29.5%. This is a relatively narrow range which indicates that the Intel Core i7-3820 performs reasonably consistently under varying real world conditions.

Weaknesses

Multi Core Floating Point Speed 488Pts
Quad Core Floating Point Speed 322Pts
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Average Bench

(Based on 19,819 samples)
Rank 18666.1%
Min Avg Max
75.3 SC Int 95.4 118
76.3 SC Float 96.1 118
76.4 SC Mixed 95.3 118
76.5% 95.6 Pts
Min Avg Max
241 QC Int 316 399
251 QC Float 322 397
239 QC Mixed 320 400
72.4% 320 Pts
Min Avg Max
390 MC Int 472 581
396 MC Float 488 597
393 MC Mixed 489 605
72.4% 483 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 4.2 GHz
87.7% Excellent
SC Int 109
SC Float 117
SC Mixed 114
91% 113 Pts
QC Int 448
QC Float 456
QC Mixed 453
102% 452 Pts
MC Int 564
MC Float 581
MC Mixed 586
86% 577 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4.3 GHz (avg)
79.3% Very good
SC Int 114
SC Float 114
SC Mixed 113
91% 114 Pts
QC Int 406
QC Float 440
QC Mixed 386
93% 411 Pts
MC Int 559
MC Float 579
MC Mixed 583
86% 574 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
69% Good
SC Int 98.5
SC Float 99.5
SC Mixed 84
75% 94 Pts
QC Int 360
QC Float 382
QC Mixed 363
84% 368 Pts
MC Int 480
MC Float 497
MC Mixed 495
74% 491 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
67.4% Good
SC Int 96.8
SC Float 98
SC Mixed 97.6
78% 97.5 Pts
QC Int 315
QC Float 319
QC Mixed 326
72% 320 Pts
MC Int 480
MC Float 496
MC Mixed 498
74% 491 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.8 GHz (avg)
65.8% Good
SC Int 95.3
SC Float 98.3
SC Mixed 99.4
78% 97.7 Pts
QC Int 302
QC Float 308
QC Mixed 311
70% 307 Pts
MC Int 475
MC Float 497
MC Mixed 483
73% 485 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
64.6% Good
SC Int 85.6
SC Float 98.2
SC Mixed 94
74% 92.6 Pts
QC Int 286
QC Float 311
QC Mixed 309
68% 302 Pts
MC Int 480
MC Float 495
MC Mixed 497
74% 491 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
64% Good
SC Int 96.9
SC Float 97.8
SC Mixed 97.6
78% 97.4 Pts
QC Int 305
QC Float 311
QC Mixed 304
70% 307 Pts
MC Int 449
MC Float 458
MC Mixed 446
68% 451 Pts
LGA2011, 1 CPU, 3 cores, 6 threads
Base clock 3.6 GHz, turbo 3.6 GHz (avg)
54.8% Above average
SC Int 87.2
SC Float 92.5
SC Mixed 88.5
72% 89.4 Pts
QC Int 254
QC Float 266
QC Mixed 253
58% 257 Pts
MC Int 338
MC Float 364
MC Mixed 364
53% 355 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
48.8% Average
SC Int 77.1
SC Float 76.4
SC Mixed 77.3
62% 76.9 Pts
QC Int 206
QC Float 229
QC Mixed 224
50% 219 Pts
MC Int 346
MC Float 390
MC Mixed 360
55% 365 Pts
19,819 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 14,804,268 CPUs tested.

 Prices

AmazonUS $40042 mins
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Typical Core i7-3820 Builds (Compare 2,827 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 48%
Yacht

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $400Bench 66%, 19,819 samples1,276x
GPU
GTX 970Nvidia  $374Bench 63%, 395,234 samples229x
GTX 1080Nvidia  $528Bench 123%, 363,472 samples224x
GTX 1070Nvidia  $330Bench 97%, 479,344 samples190x
SSD
850 Evo 250GBSamsung  $78Bench 105%, 359,537 samples155x
850 Evo 500GBSamsung  $80Bench 113%, 300,271 samples136x
840 Evo 250GBSamsung  $100Bench 96%, 93,831 samples88x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 13,947 samples124x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 54%, 9,323 samples60x
Vengeance LP DDR3 1600 C9 4x4GBCorsairBench 56%, 3,206 samples46x
EDIT WITH CUSTOM PC BUILDER Value: 66% - Good Total price: $1,152

Popular Core i7-3820 compatible motherboards:

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Processor Rankings (Price vs Performance) February 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. 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™ i7-3820 Processor (10M Cache, up to 3.80 GHz)
Code NameSandy Bridge E
Launch DateQ1'12
Processor Numberi7-3820
# of Cores4
# of Threads8
Cache10 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.2, AVX, AES
Embedded Options AvailableNo
Lithography32 nm
VID Voltage Range0.600V – 1.350V
Recommended PriceN/A
Clock Speed3.6 GHz
Max Turbo Frequency3.8 GHz
Bus Speed5 GT/s DMI2
Max TDP130 W

Memory

Max Memory Size64 GB
Memory TypesDDR3 1066/1333/1600
Memory Channels4
Memory Bandwidth51.2 GB/s
ECC Memory SupportedNo

Expansion Options

PCI Express Revision2.0
Max # of PCI Express Lanes40

Data Protection

AES New InstructionsYes

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Thermal Monitoring TechnologiesYes
Turbo Boost Tech2.0
Hyper-Threading TechYes
Virtualization for Directed I/O (VT-d)Yes
VT-x with Extended Page Tables (EPT)Yes
Demand Based SwitchingNo
vPro TechNo
Identity Protection TechYes
Smart Response TechYes

Package

Package Size52.5mm x 45.0mm
Max CPU Configuration1

Platform Protection

Execute Disable BitYes
Trusted Execution TechNo

 Comments

Added n/a ago.
USA-User
Avatar level
4,884

Excellent (edit your comment) Add link

19 days ago.

Overclocked (and properly cooled), the 3820 is a great processor. Mine runs at just under 4.9ghz... and these are cheap on eBay. For a budget gaming build, I wouldn't hesitate to buy a used, working, and tested 3820 and throw it in a used Asus or gigabyte Mobo with 32gb of ddr3 1600 ram and used gtx 980ti or even a gtx 1060/1070. Then, overclock it and enjoy the latest games at decent frame rates on high settings.

CAN-User
Avatar level
2,666

Excellent

12 months ago.

since 2012 my i73820 oc speed max 6.67GHZ worth it

ROU-User
Avatar level
2,279

Excellent

1 month ago.

it is bad cuz i dont ahve it

AUS-User
Avatar level
2,140

Poor

20 days ago.

Done an amazing job for 5 years. Still plays CPU intensive games with no problem.

ARG-User
Avatar level
1,830

Excellent

2 months ago.

i love this processador !! i have 4700 ghz

SVK-User
Avatar level
1,504

Average

21 days ago.

...but old, i7 8700k more faster

ZAF-User
Avatar level
1,398

Excellent

12 months ago.

Bought this at launch and still have it. I've upgraded my graphics card twice in that time and this processor keeps on delivering so never saw the the need to upgrade the cpu. Maybe in another 3 years I will need to but for now...it's still great.

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 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)?
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $330Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $148Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $80
Intel Core i5-8600K $259Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $750SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $120SanDisk Ultra Fit 32GB $12
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