Intel Core i7-3820: specs and benchmarks

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Intel Core i7-3820
Intel Core i7-3820
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Year of release 2012
Performance 5.29

Summary

Intel started Intel Core i7-3820 sales on February 2012 at a recommended price of $400. This is Sandy Bridge-E architecture desktop processor primarily aimed at office systems. It has 4 cores and 8 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 3800 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA2011 processor with a TDP of 130 Watt and a maximum temperature of 67 °C. It supports DDR3 memory.

It provides poor benchmark performance at

5.29%

of a leader's which is AMD Ryzen Threadripper PRO 5995WX.

General info

Of Core i7-3820 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating1030
Value for money2.32
Market segmentDesktop processor
Architecture codenameSandy Bridge-E (2011−2013)
Release dateFebruary 2012 (10 years ago)
Launch price (MSRP)$400of 305 (Core i7-870)
Price now$192 (0.5x MSRP)of 14999 (Xeon Platinum 9282)
Value for money

To get the index we compare the characteristics of the processors and their cost, taking into account the cost of other processors.

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Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores4 (Quad-Core)
Threads8
Base clock speed3.6 GHzof 4.7 (FX-9590)
Boost clock speed3.8 GHzof 5.5 (Core i9-12900KS)
L1 cache64 KB (per core)of 1536 (EPYC Embedded 3401)
L2 cache256 KB (per core)of 12288 (Core 2 Quad Q9550)
L3 cache10240 KB (shared)of 32768 (Ryzen Threadripper 1998)
Chip lithography32 nmof 5 (Apple M1)
Die size294 mm2
Maximum core temperature67 °Cof 110 (Atom x7-E3950)
Maximum case temperature (TCase)67 °Cof 105 (Core i7-5950HQ)
Number of transistors1270 millionof 57000 (Apple M1 Max)
64 bit support+
Windows 11 compatibility-
Unlocked multiplier-
VID voltage range0.6V – 1.35V

Compatibility

Information on Core i7-3820 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1of 8 (Opteron 842)
SocketFCLGA2011
Thermal design power (TDP)130 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i7-3820. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2, Intel® AVX
AES-NI+
AVX+
vPro-
Enhanced SpeedStep (EIST)+
Turbo Boost Technology2.0
Hyper-Threading Technology+
Idle States+
Thermal Monitoring+
Smart Response+
Demand Based Switching-

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT-
EDB+
Identity Protection+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d+
VT-x+
EPT+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-3820's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR3of 4800 (Ryzen 9 6980HX)
Maximum memory size64.23 GBof 786 (Xeon E5-2670 v3)
Max memory channels4of 12 (Xeon Platinum 9221)
Maximum memory bandwidth51.2 GB/sof 281.6 (Xeon Platinum 9221)
ECC memory support-

Peripherals

Specifications and connection types of supported peripherals.

PCIe version2.0of 3 (Core i7-7700K)
PCI Express lanes40of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core i7-3820. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-3820 5.29
  • Passmark
  • 3DMark Fire Strike Physics
  • GeekBench 5 Single-Core
  • GeekBench 5 Multi-Core

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-3820 5757

3DMark Fire Strike Physics

i7-3820 6240

GeekBench 5 Single-Core

i7-3820 732

GeekBench 5 Multi-Core

i7-3820 3105

Mining hashrates

Cryptocurrency mining performance of Core i7-3820. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256) 5.8 Mh/s  

Relative perfomance

Overall Core i7-3820 performance compared to nearest competitors among desktop CPUs.


AMD equivalent

We believe that the nearest equivalent to Core i7-3820 from AMD is Phenom II X6 1100T BE, which is nearly equal in speed and lower by 5 positions in our rating.

AMD Phenom II X6 1100T BE Phenom II X6 1100T BE
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Here are some closest AMD rivals to Core i7-3820:

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Intel Core i7-4770T Core i7 4770T
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AMD Phenom II X6 1100T BE Phenom II X6 1100T BE
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Intel Core i5-4690K Core i5 4690K
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Intel Core i7-2700K Core i7 2700K
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AMD FX-8350 FX 8350
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Intel Core i7-3770T Core i7 3770T
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Recommended graphics cards

These graphics cards are most commonly used with Core i7-3820 according to our statistics.

User rating

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


3.5 103 ratings

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Questions and comments

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