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Intel

Core i7-3820

▲ 55106 ▼

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

VS

Average Bench: 67.4% (186th of 1159)

more Based on 20,901 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: 54%Average: 67.4% Great: 84%
Gaming
Gaming 67%
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 32.6% 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 96.2Pts
Avg. Single Core Mixed Speed 96.2Pts

Above average consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is 30.6%. 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 486Pts
Avg. Multi Core Mixed Speed 486Pts
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Average Bench

(Based on 20,901 samples)
Rank 18667.4%
Min Avg Max
75.1 SC Int 96.2 119
75.4 SC Float 96.3 119
75.1 SC Mixed 96.2 119
77% 96.3 Pts
Min Avg Max
234 QC Int 326 424
242 QC Float 331 425
233 QC Mixed 329 418
74.5% 329 Pts
Min Avg Max
373 MC Int 470 589
391 MC Float 486 607
369 MC Mixed 486 608
72% 481 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
89.1% Excellent
SC Int 123
SC Float 123
SC Mixed 117
97% 121 Pts
QC Int 466
QC Float 439
QC Mixed 455
103% 453 Pts
MC Int 606
MC Float 627
MC Mixed 629
93% 621 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
82% Excellent
SC Int 121
SC Float 120
SC Mixed 115
95% 119 Pts
QC Int 378
QC Float 394
QC Mixed 401
88% 391 Pts
MC Int 574
MC Float 610
MC Mixed 615
90% 600 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
70.1% Very good
SC Int 96.6
SC Float 97.8
SC Mixed 96.3
78% 96.9 Pts
QC Int 320
QC Float 348
QC Mixed 350
77% 339 Pts
MC Int 472
MC Float 491
MC Mixed 494
73% 486 Pts
CPUSocket, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
69.7% Good
SC Int 98.7
SC Float 100
SC Mixed 98.9
79% 99.2 Pts
QC Int 328
QC Float 348
QC Mixed 345
77% 340 Pts
MC Int 474
MC Float 471
MC Mixed 474
71% 473 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
69.1% Good
SC Int 99.2
SC Float 99.7
SC Mixed 97.9
79% 98.9 Pts
QC Int 341
QC Float 348
QC Mixed 337
78% 342 Pts
MC Int 486
MC Float 507
MC Mixed 511
75% 502 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
67.5% Good
SC Int 88
SC Float 92
SC Mixed 86.3
71% 88.8 Pts
QC Int 320
QC Float 361
QC Mixed 346
78% 342 Pts
MC Int 483
MC Float 502
MC Mixed 500
74% 495 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
62.2% Good
SC Int 97
SC Float 92.4
SC Mixed 93.2
75% 94.2 Pts
QC Int 290
QC Float 275
QC Mixed 291
65% 285 Pts
MC Int 478
MC Float 491
MC Mixed 495
73% 488 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.8 GHz (avg)
60.6% Good
SC Int 65.7
SC Float 69.4
SC Mixed 72.9
56% 69.3 Pts
QC Int 317
QC Float 328
QC Mixed 315
72% 320 Pts
MC Int 474
MC Float 487
MC Mixed 491
72% 484 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
60.1% Good
SC Int 57.4
SC Float 74.4
SC Mixed 58.7
51% 63.5 Pts
QC Int 332
QC Float 336
QC Mixed 335
76% 335 Pts
MC Int 475
MC Float 491
MC Mixed 495
73% 487 Pts
20,901 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,712,986 CPUs tested.

 Prices

AmazonUS $3803 mins
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CPU GPU SSD HDD RAM MBD
Typical Core i7-3820 Builds (Compare 3,372 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 53%
Yacht

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $380Bench 67%, 20,901 samples1,488x
GPU
GTX 1080Nvidia  $528Bench 123%, 484,715 samples263x
GTX 970Nvidia  $374Bench 63%, 465,724 samples255x
GTX 1070Nvidia  $390Bench 98%, 579,633 samples244x
SSD
850 Evo 250GBSamsung  $85Bench 105%, 432,736 samples177x
850 Evo 500GBSamsung  $100Bench 114%, 320,095 samples164x
840 Evo 250GBSamsung  $130Bench 97%, 95,392 samples105x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 13,697 samples140x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 54%, 10,490 samples69x
Vengeance LP DDR3 1600 C9 4x4GBCorsairBench 56%, 4,038 samples52x
EDIT WITH CUSTOM PC BUILDER Value: 84% - Excellent Total price: $1,293

Popular Core i7-3820 compatible motherboards:

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Processor Rankings (Price vs Performance) June 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
5,264

Poor (edit your comment) Add link

22 days ago.

well considering the 10mb of L3, at a base clock of 3.6ghz and the quad memory channels totally beastly, only draw back is its a pcie 2.0 chip not a 3.0 chip. but the upgrade path is solid vs the 1155/1150 chipsets.

CAN-User
Avatar level
2,872

Good

2 months ago.

h

AUS-User
Avatar level
2,302

Poor

4 months ago.

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

ARG-User
Avatar level
1,982

Excellent

6 months ago.

i love this processador !! i have 4700 ghz

SVK-User
Avatar level
1,560

Average

4 months ago.

...but old, i7 8700k more faster

ZAF-User
Avatar level
1,514

Excellent

16 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.

DNK-User
Avatar level
1,402

Excellent

1 month ago.

Also bought this at launch and still running it, but it seems that it's time to upgrade it, my setup is starting to bottleneck with this at the moment...

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Speed Comparisons

vs Intel Core i7-8700K
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vs AMD Ryzen 5 1600
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1159 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 i7-8700K $365Nvidia GTX 1070 $390Samsung 850 Evo 250GB $85
AMD Ryzen 5 2600 $144Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $79SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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