Intel Core i7-3820: specs and benchmarks

Intel Core i7-3820

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 DDR3-1066, DDR3-1333, DDR3-1600 memory.

It provides poor benchmark performance at 7.21 percent of a leader's which is AMD Ryzen Threadripper 3990X.

General info

Of Core i7-3820 processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
 
Value for money (0-100)
15.12
 
Type
Desktop
 
Architecture codename
Sandy Bridge-E
 
Release date
February 2012
 
Launch price (MSRP)
$400
 
Price now
$200
 
of 8685 (Xeon E5-4650L)

Technical specs

Core i7-3820's quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Core i7-3820's performance, but to be more precise you have to review its test results.
Number of cores
4
 
Number of threads
8
 
Maximum frequency
3.8 GHz
 
L1 cache
64 KB (per core)
 
of 896 (Atom C3950)
L2 cache
256 KB (per core)
 
of 8192 (FX-8350)
L3 cache
10240 KB (shared)
 
Manufacturing process technology
32 nm
 
Die size
294 mm2
 
Maximum core temperature
67 °C
 
of 110 (Atom x7-E3950)
Maximum case temperature (TCase)
67 °C
 
of 105 (Core i7-5557U)
Transistor count
1270 million
 
of 19200 (Ryzen 7 3700)
64 bit support
+
 
VID voltage range
0.6V – 1.35V
 

Compatibility

Information on Core i7-3820 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Max number of CPUs in a configuration
1
 
Socket
FCLGA2011
 
Power consumption (TDP)
130 Watt
 
of 650 (Atom Z500)

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3820. You'll probably need this information if you require some particular technology.
Instruction set extensions
Intel® SSE4.2, Intel® AVX
 
AES-NI
+
 
AVX
+
 
vPro
-
 
Enhanced SpeedStep (EIST)
+
 
Turbo Boost
2.0
 
Hyper-Threading
+
 
Idle States
+
 
Thermal Monitoring
+
 
Smart Response
+
 
Demand Based Switching
-
 

Security technologies

Core i7-3820 technologies aimed at raising security, for example, by protecting against hacks.
TXT
-
 
EDB
+
 
Identity Protection
+
 

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3820 are enumerated here.
VT-d
+
 
VT-x
+
 
EPT
+
 

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-3820.
Supported memory types
DDR3-1066, DDR3-1333, DDR3-1600
 
of 4266 (Ryzen 9 4900H)
Maximum memory size
64.23 GB
 
Max memory channels
4
 
Maximum memory bandwidth
51.2 GB/s
 
of 262.26 (Xeon Platinum 9221)

Peripherals

Specifications and connection of Core i7-3820's supported peripherals.
PCIe revision
2.0
 
Max number of PCIe lanes
40
 
of 128 (EPYC 7551P)

Benchmark performance

Non-gaming benchmarks performance of Core i7-3820. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

7.21

Passmark

5865

3DMark Fire Strike Physics

6240

Mining hashrates

Cryptocurrency mining performance of Core i7-3820. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
5.8 Mh/s
 
 

Game benchmarks

Let's see how good Core i7-3820 is for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

Overall Core i7-3820 performance compared to nearest competitors. All CPU types participate.

AMD equivalent

We believe that the nearest equivalent to Core i7-3820 from AMD is Phenom II X6 1100T BE, which is slower by 2% and lower by 15 positions in our rating.

User rating

Here you can see the rating of the processor by users, as well as give your rating.

Advices and comments

Here you can ask a question about Core i7-3820, agree or disagree with our judgements, or report an error or mismatch.