Intel Core i7-7820X: specs and benchmarks

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Aggregated performance score

Core i7-7820X
2017
8 cores / 16 threads
11.12

Summary

Intel started Core i7-7820X sales 26 June 2017 at a recommended price of $599. This is a Skylake (server) architecture desktop processor primarily aimed at office systems. It has 8 cores and 16 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 4500 MHz and an unlocked multiplier.

Compatibility-wise, this is FCLGA2066 processor with a TDP of 140 Watt and a maximum temperature of 72 °C. It supports DDR4-2666 memory.

It provides poor benchmark performance at 11.12% of a leader's which is AMD Ryzen Threadripper PRO 7995WX.

Ryzen Threadripper PRO 7995WXRyzen ThreadripperPRO 7995WX
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General info

Core i7-7820X processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking627
Place by popularitynot in top-100
Value for money8.99
Market segmentDesktop processor
SeriesIntel Core i7
Architecture codenameSkylake (server) (2017−2019)
Release date26 June 2017 (6 years old)
Launch price (MSRP)$599of 305 (Core i7-870)
Current price$376 (0.6x MSRP)of 17802 (Threadripper PRO 7995WX)

Value for money

Performance per price, higher is better.

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 cores8 (Octa-Core)
Threads16
Base clock speed3.6 GHzof 4.7 (FX-9590)
Boost clock speed4.5 GHzof 6.2 (Core i9-14900KS)
Bus support4 × 8 GT/s
L1 cache64 KB (per core)of 7475.2 (Apple M2 Pro 10-Core)
L2 cache1 MB (per core)of 96 (Ryzen Threadripper PRO 7995WX)
L3 cache11 MB (shared)of 768 (EPYC 7373X)
Chip lithography14 nmof 3 (Apple M3 Max 16-Core)
Maximum core temperature99 °Cof 110 (Atom x7-E3950)
Maximum case temperature (TCase)72 °Cof 105 (Core i7-5950HQ)
64 bit support+
Windows 11 compatibility+
Unlocked multiplierYes

Compatibility

Information on Core i7-7820X 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)
SocketFCLGA2066
Power consumption (TDP)140 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i7-7820X. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI+
AVX+
Enhanced SpeedStep (EIST)+
Turbo Boost Technology2.0
Hyper-Threading Technology+
TSX+
Turbo Boost Max 3.0+
StatusDiscontinued

Security technologies

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

EDB+

Virtualization technologies

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

VT-d+
VT-x+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-7820X's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4-2666
Maximum memory size128 GBof 786 (Xeon E5-2670 v3)
Max memory channels4of 12 (Xeon Platinum 9221)
Maximum memory bandwidth85 GB/sof 460.8 (EPYC 9124)
ECC memory support-

Graphics specifications

General parameters of a GPU integrated into Core i7-7820X.

Integrated graphics cardN/A

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3.0of 5 (Core i9-12900K)
PCI Express lanes28of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core i7-7820X. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark 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.

i7-7820X 11.12

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.

Benchmark coverage: 68%

i7-7820X 17190

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

i7-7820X 1413

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

i7-7820X 7847

Gaming performance

Relative perfomance

Overall Core i7-7820X performance compared to nearest competitors among desktop CPUs.


Ryzen 7 2700X 101.98
Core i7-6950X 101.44
Core i5-11500 101.17
Core i7-7820X 100

AMD equivalent

According to our data, the closest AMD alternative to Core i7-7820X is Ryzen 7 PRO 2700X, which is slower by 2% and lower by 10 positions in our ranking.

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Here are some closest AMD rivals to Core i7-7820X:

Similar processors

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

i7-6950XCore i76950X
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Ryzen 7 PRO 2700XRyzen 7PRO 2700X
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Ryzen 7 2700XRyzen 72700X
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Ryzen Threadripper 1900XRyzen Threadripper1900X
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Ryzen 5 3600Ryzen 53600
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i9-9900Core i99900
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Recommended GPUs

People consider these graphics cards to be good for Core i7-7820X, according to our PC configuration statistics.

These are the fastest graphics cards for Core i7-7820X in our user configuration statistics. There is a total of 198 configurations based on Core i7-7820X in our database.

User Ratings

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


3.7 121 vote

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Questions and comments

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