Intel · Core

Core i7-7800X

Released June 2017

An unlocked 6-core Skylake-X desktop processor with Hyper-Threading and four-channel DDR4 memory for LGA2066 enthusiast systems.

Model history · 3 models, 2014–2017

2014Core i7-5820K Compare
2016Core i7-6800K Compare
2017Core i7-7800X

Cores: 6/12
Boost: 4 GHz
L3: 8.25 MB
Power: 140 W
Socket: LGA2066

Unlocked

What reviewers say

Reviewers praise its rendering and encoding performance, but question the cost of the X299 platform against cheaper Ryzen alternatives and mainstream Intel chips for gaming. Bit-tech found worthwhile overclocking headroom, while TechSpot was less convinced by the platform's power consumption and value.

From bit-tech.net and techspot.com

Specifications

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Cores and clocks

Cores: 6
Threads: 12
Base clock: 3.5 GHz
Boost clock: 4 GHz
L3 cache: 8.25 MB
Cores: Skylake-X; 6 cores with Hyper-Threading. The unlocked multiplier is confirmed by Intel’s exact-model family product brief.
Clocks: Turbo Boost 2.0 up to 4.00 GHz. Intel’s September press-kit record names 26 June 2017 availability for the first Core X processors; its August record confirms the four- to ten-core models were already on shelves. The exact model’s first-sale day was not established, so month precision is retained.
Cache: 8.25 MB Intel Smart Cache (L3).

Graphics and AI

Built-in graphics: No
Graphics: No processor graphics, explicitly stated in Intel’s exact-model comparison-chart row; a separate graphics solution is required.

Platform

Socket: LGA2066
Base power: 140 W
Unlocked: Yes
Cooler in the box: No
Memory support: Up to 128 GB; four channels of DDR4-2400; 77 GB/s maximum published bandwidth; no ECC. Current exact-model Intel specifications list DDR4-2400; the family comparison chart’s DDR4-2666 entry conflicts and is not used.
PCIe: 28 CPU lanes; PCIe 3.0.
Chipsets: Intel X299; LGA2066.
Process: 14 nm; Skylake-X.
Cooler: Intel explicitly excludes a fan and heatsink from the boxed product; a separate compatible cooler is required. Published junction limit: 100°C.