Intel
Intel Core i7-7700K
The last four-core mainstream i7 and the highest-clocked one, at 4.2 GHz base and 4.5 GHz turbo. It has the strongest per-core speed of any 6th/7th gen LGA1151 chip, and Intel made it obsolete nine months later with the six-core 8700K.
Pros
- Highest single-thread performance available on a 100/200-series board
- Four cores with Hyper-Threading and 8 MB L3
- Unlocked, and 4.8-5.0 GHz is reachable on better samples with strong cooling
- HD Graphics 630 with 10-bit HEVC/VP9 hardware decode and QuickSync
- Official DDR4-2400, plus memory overclocking on Z270
Cons
- Notorious thermals - paste under the IHS and sharp temperature spikes; delidding was common practice
- 91 W and no bundled cooler
- Only four cores, and six-core Coffee Lake chips arrived months later at similar prices
- Not on the Windows 11 supported-CPU list
Below average
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the Intel Core i7-7700K
General
- Announced
- 2017
- Socket
- LGA1151
- Process
- 14 nm
- Base TDP
- 91 W
- Unlocked multiplier
- Yes
- Cooler included
- No
Cores & Clocks
- Cores
- 4
- Performance cores
- 4
- Efficiency cores
- 0
- Threads
- 8
- Base clock
- 4.2 GHz
- Boost clock
- 4.5 GHz
- L2 cache
- 1 MB
- L3 cache
- 8 MB
Integrated GPU
- iGPU
- Intel HD Graphics 630
- iGPU clock
- 1,150 MHz
Memory
- Memory support
- DDR4-2400 / DDR3L-1600
- Max memory
- 64 GB
- Memory channels
- 2
Platform
- PCIe version
- 3
- CPU PCIe lanes
- 16
Benchmarks
- Geekbench 6 (single)
- 1,520
- Geekbench 6 (multi)
- 4,950
- Cinebench R23 (single)
- 1,180
- Cinebench R23 (multi)
- 5,400
- PassMark
- 9,700
Quick answers
Is the Intel Core i7-7700K good in 2026?
The Intel Core i7-7700K earns an Inno Score of 29.8/100 (“Below average”) based on its specs and benchmark results. The last four-core mainstream i7 and the highest-clocked one, at 4.2 GHz base and 4.5 GHz turbo. It has the strongest per-core speed of any 6th/7th gen LGA1151 chip, and Intel made it obsolete nine months later with the six-core 8700K.
What are the key specs of the Intel Core i7-7700K?
Cores: 4 · Threads: 8 · Boost clock: 4.5 GHz · Socket: LGA1151
What are the closest alternatives to the Intel Core i7-7700K?
Its closest rivals on InnoReviews are Intel Core i7-5930K, Intel Core i7-5820K, Intel Core i5-8400 — open the comparison pages for a spec-by-spec breakdown.