Core i7-7820X

Name: Intel Core i7-7820X
Brand: Intel
Rating: 3.9 (25 reviews)

8 cores · 16 threads · up to 4.5 GHz on FCLGA2066.

3.9 · 25 votes

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Cores

Threads

Boost

4.5 GHz

L3 cache

11 MB

TDP

140W

Socket

FCLGA2066

Performance breakdown

Gaming10

Productivity10

Single-core10

Multi-core33

Power efficiency9

Lab scores

Performance score10

Cores8

Threads16

Boost clock (GHz)4.5 GHz

Estimated gaming FPS

Paired with a high-end GPU. CPU impact is largest at 1080p.

1080p22 fps

1440p18 fps

4K12 fps

Full specifications

Processor & cores

Architecture: Skylake (server)
Process node: 14 nm
Socket: FCLGA2066
Release year: 2017
Total cores: 8
Threads: 16

Clocks & cache

Base clock: 3.6 GHz
Boost clock: 4.5 GHz
Multiplier: 36 (unlocked)
L1 cache: 512 KB
L2 cache: 8 MB
L3 cache: 11 MB

Memory & platform

Memory support: DDR4-2666
Max capacity: 128 GB
Channels: 4
Max bandwidth: 85.33 GB/s
Base power (TDP): 140W
Max temperature: 99°C
PCIe: PCIe 3.0
Launch price: $599

Technologies

Instruction sets: SSE4.1, SSE4.2, AVX2, AVX-512
Extensions: AES-NI, AVX, VT-x, VT-d, Turbo Boost Max 3.0, TSX

Community Feedback

What Owners Say

Owners love the raw multi-core muscle for heavy tasks and overclocking headroom. The usual gripe is the high heat output and power draw, making cooling a serious consideration.

Pros

Stays fast under heavy loads
Great for multithreaded work
Overclocks well with good cooling
Works with cheap DDR4 memory

Cons

Hot and power hungry under load
Needs expensive motherboard and cooler
Outclassed by newer cheaper CPUs

Verdict

Our verdict on the Core i7-7820X

Intel’s i7-7820X is a high-core-count desktop chip from a server lineage, but its high power draw and heat limit its appeal.

Get it if you need loads of PCIe lanes and memory bandwidth for heavy workstation tasks on an older platform. Skip it if you're building a gaming PC, where cheaper newer chips offer better single-core performance and run cooler.