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Intel Core i7-3820 - CM8061901049606 / BX80619I73820

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Intel Core i7-3820 specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyIntel Core i7
Model number  ? i7-3820
CPU part numbers
  • CM8061901049606 is an OEM/tray microprocessor
  • BX80619I73820 is a boxed microprocessor
Frequency  ? 3600 MHz
Turbo frequency3800 MHz
Bus speed  ? 5 GT/s DMI
Clock multiplier  ? 36
Package2011-land Flip-Chip Land Grid Array
SocketSocket 2011 / LGA2011
Size2.07" x 1.77" / 5.25cm x 4.5cm
Introduction dateFebruary 12, 2012
End-of-Life dateLast order date is September 26, 2014
Last shipment date is March 6, 2015
Price at introduction$294 (OEM)
$305 (box)
S-spec numbers
  ES/QS processors Production processors
Part number QBWJ SR0LD
BX80619I73820 +
Architecture / Microarchitecture
MicroarchitectureSandy Bridge
Processor core  ? Sandy Bridge-E
Core stepping  ? M1 (QBWJ, SR0LD)
Manufacturing process0.032 micron Hi-K metal gate process
Data width64 bit
The number of cores4
The number of threads8
Floating Point UnitIntegrated
Level 1 cache size  ? 4 x 32 KB instruction caches
4 x 32 KB data caches
Level 2 cache size  ? 4 x 256 KB
Level 3 cache size10 MB
Physical memory64 GB
  • MMX instructions
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSSE3 / Supplemental Streaming SIMD Extensions 3
  • SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4  ? 
  • AES / Advanced Encryption Standard instructions
  • AVX / Advanced Vector Extensions
  • EM64T / Extended Memory 64 technology / Intel 64  ? 
  • NX / XD / Execute disable bit  ? 
  • HT / Hyper-Threading technology  ? 
  • VT-x / Virtualization technology  ? 
  • VT-d / Virtualization for directed I/O
  • TBT 2.0 / Turbo Boost technology 2.0  ? 
Low power featuresEnhanced SpeedStep technology  ? 
Integrated peripherals / components
Integrated graphicsNone
Memory controller
  • The number of controllers: 1
    Memory channels: 4
    Supported memory: DDR3-1066, DDR3-1333, DDR3-1600
    Maximum memory bandwidth (GB/s): 51.2
Other peripherals
  • Direct Media Interface 2.0
  • PCI Express 2.0 interface
Electrical / Thermal parameters
V core  ? 0.6V - 1.35V
Maximum operating temperature  ? 66.8°C
Thermal Design Power  ? 130 Watt
Notes on Intel Core i7-3820
  • Maximum Turbo boost frequency is 3.9 GHz according to Intel roadmaps, and 3.8 GHz according to ARK
  • The processor has the following security, data protection and/or software features: Intel Identity Protection technology.

Detailed side-by-side comparison

For detailed comparision of the Intel i7-3820 and any other other chip from our CPU database type in a chip name and/or its partial specs:

You can specify any of the following: manufacturer name, family name, model number, part number, core name, socket name, operating frequency, bus speed, and the last level cache. Here are examples of searches: i7-3820, CM8061901049606, Intel Core i7 3.6GHz, Sandy Bridge-E Socket 2011

Historical price chart

The chart below shows official prices of Intel Core i7-4790K, i7-3820 and i7-4820K processors:

Historical official prices of Core i7-4790K, i7-3820 and i7-4820K processors


Q: Can I upgrade my Core i7-3820 processor?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see resource for CPU support list for your board.

Core i7-3820 Overclocking

Sorry, overclocking information is not available at this time.

Related news stories

Intel Sandy Bridge-E CPUs to retire in September 2014
Mar 04, 2014: Intel's line of "Sandy Bridge-E" extreme CPUs was launched in Q4 2011, and consisted of i7-3930K and i7-3960X models. The processors had such innovated features as 6 Hyper-Threaded CPU cores, up to 15 MB of level 3 cache, and quad-channel memory controller, but on another side they were priced at premium and required new and expensive socket 2011 motherboards. The family was expanded with Core i7-3820K and i7-3970X SKUs in 2012, and replaced with Core i7-4xxx "Ivy Bridge-E" products last year.

Intel releases Core i7-3820 processor
Feb 14, 2012: Socket 2011 platform, and consumer-class processors for the platform were introduced three month ago. The first two models were Core i7-3930K and i7-3960X, based on "Sandy Bridge-E" core. The third socket 2011 SKU, also planned to launch last November, was Core i7-3820. The processor was delayed by three months, and only yesterday Intel added this model to official price list.

Launch dates of Intel processors in Q1
Jan 13, 2012: VR-Zone and Fudzilla recently revealed launch dates of several desktop Intel processors, as well as introduction date of "Romley" platform and Sandy Bridge-EP server chips.

Core i7-3820 is available for pre-order in the US
Dec 19, 2011: One month ago Intel launched socket 2011 enthusiast platform, comprised of X79 chipset, and Core i7-3960X and i7-3930K microprocessors. Both Core i7s are six-core CPUs, that boast better performance than previous generation of Extreme Edition consumer chips, at a premium price. The good news is that much less expensive socket 2011 processor is coming in the first quarter 2012. As was previously reported, Core i7-3820 will be released in February, and it will be priced at $294 in 1K tray quantities. This CPU is now available for pre-order in Provantage online store.

Ivy Bridge-E to be compatible with Sandy Bridge-E socket
Nov 21, 2011: A slide leaked on the forums at Chinese site xfastest indicates that Ivy Bridge Extreme processors will be socket and chipset compatible with Sandy Bridge-E. It shows that IB-E processors will work in current X79 Express motherboards. This is good news for a lot of potential purchasers, as it means a system bought now will not cost as much to upgrade in 12 months.

Intel Sandy Bridge-E processors priced
Aug 15, 2011: In the forth quarter of this year Intel plans to introduce three high-performance models, based on new Sandy Bridge-E core. One of these chips, Core i7-3960X Extreme, is going to supersede Core i7-990X, while two others, unlocked Core i7-3930K and locked Core i7-3820, are positioned as a replacement for top Core i7 processors for sockets 1156 and 1366. Specifications of these CPUs were disclosed one month ago.

More details surface on Sandy Bridge-E extreme CPUs
Jul 19, 2011: Current generation of extreme consumer desktop platform, represented by Westmere Core i7-900X series microprocessors, is going to be replaced with three new Sandy Bridge models, supposedly by the end of this year. The new processors will be built on Sandy Bridge-E core, and will utilize new socket LGA2011. Basic specifications for these CPUs were known since mid of April. Yesterday, DonanimHaber published new details on forthcoming extreme processors, including turbo boost frequencies and processor numbers.

Details emerge on Sandy Bridge-E processors
Apr 21, 2011: Yesterday, XFastest published a roadmap of Sandy Bridge-E microprocessors, covering the rest of this year and the first half 2012. "Sandy Bridge-E" is a variation of Sandy Bridge core, used in the next generation of Core i7/i7 Extreme processors. According to the roadmap, there will be three new SKUs released in the 4th quarter 2011.

CPU ID information for the Core i7-3820

Our CPUID database contains 3 records for this microprocessor. See all submitted records.

Use our CPU identification tool to check features of your CPU.

NOTE: The CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the Intel Core i7 i7-3820 CPU.

CPU Family:Core i7
Processor Number:i7-3820
Frequency:4500 MHz
Part number:
S-Spec Number:L202B741.step7 revC2
Comment:Easy 4.9Ghz O/C
Submitted by:MARKO
General information
Processor name (BIOS): Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz
Logical processors:8
Processor type:Original OEM Processor
CPUID signature:206D7
Family: 6 (06h)
Model:45 (02Dh)
Stepping: 7 (07h)
TLB/Cache details:64-byte Prefetching
Data TLB0: 2-MB or 4-MB pages, 4-way set associative, 32 entries
Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Instruction TLB: 4-KB pages, 4-way set associative, 64 entries
L2 TLB: 1-MB, 4-way set associative, 64-byte line size
Shared 2nd-level TLB: 4 KB pages, 4-way set associative, 512 entries

Cache: L1 data L1 instruction L2 L3
Size: 4 x 32 KB 4 x 32 KB 4 x 256 KB 10 MB
Associativity: 8-way set
8-way set
8-way set
20-way set
Line size: 64 bytes 64 bytes 64 bytes 64 bytes
Comments: Direct-mapped Direct-mapped Non-inclusive
Shared between all cores
Instruction set extensionsAdditional instructions
  XSETBV/XGETBV are enabled
Major featuresOther features
On-chip Floating Point Unit 1 GB large page support
64-bit / Intel 64 36-bit page-size extensions
NX bit/XD-bit 64-bit debug store
Hyper-Threading Technology Advanced programmable interrupt controller
Intel Virtualization CPL qualified debug store
Turbo Boost Debug store
Enhanced SpeedStep Debugging extensions
  Digital Thermal Sensor capability
  Direct Cache access
  Extended xAPIC support
  LAHF/SAHF support in 64-bit mode
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Pending break enable
  Perfmon and Debug capability
  Physical address extensions
  Power Limit Notification capability
  Process context identifiers
  TSC rate is ensured to be invariant across all states
  Thermal monitor
  Thermal monitor 2
  Thermal monitor and software controlled clock facilities
  Time stamp counter
  Timestamp counter deadline
  Virtual 8086-mode enhancements
  xTPR Update Control

CPUs, related to Intel Core i7-3820

Model Cores /
Frequency Turbo
TDP Features Price  
Intel Core i7 family, Socket 2011
   Core i7-38204 / 83.6 GHz3.8 GHz10 MB130W  
   Core i7-4820K4 / 83.7 GHz3.9 GHz10 MB130WUnlock$323>
   Core i7-3930K6 / 123.2 GHz3.8 GHz12 MB130WUnlock >
   Core i7-4930K6 / 123.4 GHz3.9 GHz12 MB130WUnlock$583>
Intel Core i7 family, Sandy Bridge micro-architecture, Other sockets
   Core i7-2600S4 / 82.8 GHz3.8 GHz8 MB65WTXT >
   Core i7-26004 / 83.4 GHz3.8 GHz8 MB95WTXT >
   Core i7-2600K4 / 83.4 GHz3.8 GHz8 MB95WUnlock >
   Core i7-2700K4 / 83.5 GHz3.9 GHz8 MB95WUnlock >
Other families, Sandy Bridge micro-architecture, Socket 2011
   Core i7-3960X6 / 123.3 GHz3.9 GHz15 MB130WUnlock >
   Core i7-3970X6 / 123.5 GHz4 GHz15 MB150WUnlock >
 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
 • Background color of specs and features indicate whether they are better or worse than similar spec/feature of the Core i7-3820
 • Click on the >  icon to compare any CPU in the table with the Intel Core i7-3820 (Javascript required).
 • The 'Price' column shows official Intel prices as of Jun 2, 2014. Prices for obsolete and tray-only processors are not provided.
 • Features abbreviations:
TXT - Trusted Execution
Unlock - Unlocked multiplier

Pictures (2)

Picture of the Processor.
2012-02-22 01:30:18
Posted by: Enigma 8750

Please refer to outer cpu mount for correct alignment proceedure. it can be confusing unless you check the outer metal mount for direction of CPU placement.
Picture of the Processor.
Processor is partially Unlocked
2012-02-22 01:52:43
Posted by: Enigma8750

it has a BLCK step up from 100 - 125 - 166
it has a governor on the multiplier of 43 MAX
So at 100 BLCK and 43 = 4.3 Ghz.
Stable to (125 x 37) = 4.6 Ghz.
Processor is partially Unlocked
Comments (1)

You're welcome to post suggestions, corrections, your own personal Intel Core i7-3820 review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.

i7-3820 Turbo frequency 3900 MHz?

2014-06-19 12:00:57
Posted by: ALex
i7-3820 Turbo frequency 3800 MHz

Response: I fixed it. Thank you for the correction!
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