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Intel Core i7-7700K @ 4.20GHz

Explore Intel Core i7-7700K @ 4.20GHz technical reviews, specifications and benchmark results, with practical context for performance, compatibility and upgrade comparisons.

Last updated: 2026-10-20
5.8/ 10
Technical rating

Good

Intel Core i7-7700K @ 4.20GHz is a Desktop processor with 4 cores and 8 threads. It runs at 4.2 GHz and boosts up to 4.5 GHz. It records a PassMark CPU Mark of 9635 and a single-thread rating of 2699. Its stated TDP is 95 W.

CPU Mark9,635
15,276 samples
Single Thread2,699
Overall rank#1,783
of 6,054
Reference price$107.75

Technical assessment

A summary based on specifications and results.

Good
5.8Good

Intel Core i7-7700K @ 4.20GHz is a Desktop processor with 4 cores and 8 threads. It runs at 4.2 GHz and boosts up to 4.5 GHz. It records a PassMark CPU Mark of 9635 and a single-thread rating of 2699. Its stated TDP is 95 W.

Specification context

What do these specifications mean in practice?

The Intel Core i7-7700K @ 4.20GHz is a Desktop released in 2016. Recorded specifications include 4 cores and 8 threads, up to 4.50 GHz turbo, a 95 W reference TDP, a 9,635 CPU Mark. Use these figures to understand its position, then compare the results with your software and the complete platform.

Reading guide

Read the performance results

The 9,635 CPU Mark is a broad overall-performance measure, while the 2,699 single-thread result adds context for less-parallel work. Compare the nearby alternatives on this page and do not treat one score as a verdict for every application.

Platform and compatibility

It uses socket LGA1151. A matching socket is only the first check; confirm the official motherboard CPU-support list, BIOS revision and board power limits.

Memory and power

Recorded memory support: DDR4-2133. The 95 W TDP helps size the cooling class, but it is not the same as peak wall-power consumption.

FAQ

Common processor questions

What are the key Intel Core i7-7700K @ 4.20GHz specifications?

The main recorded details are 4 cores and 8 threads, up to 4.50 GHz turbo, a 95 W reference TDP, a 9,635 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the Intel Core i7-7700K @ 4.20GHz good for gaming?

The product name or CPU Mark alone cannot answer that. Check single-thread performance, core count, the target graphics card, gaming resolution and results from the games you play.

Which motherboards support the Intel Core i7-7700K @ 4.20GHz?

Start with LGA1151 motherboards, then confirm the official CPU-support list and required BIOS revision for the exact board before buying.

How much power does the Intel Core i7-7700K @ 4.20GHz use?

The recorded reference TDP is 95 W. Real consumption can be lower or higher depending on power limits, motherboard, workload and cooling.

This guidance interprets recorded specifications and results; it does not claim hands-on device testing. Results can vary with motherboard, power, memory and cooling.

Multi-axis comparison

How does this processor compare?

A direct comparison with nearby processors from the same brand and a similar core count.

5 CPU

Overall and multi-core performance

A higher CPU Mark indicates stronger overall performance.

02AMD Ryzen 5 PRO 3350GEAMD9,643 points
03Intel Core i7-7700K @ 4.20GHzThis CPU9,635 points
05Intel Core i5-8500 @ 3.00GHzIntel9,500 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

02Intel Core i7-7700K @ 4.20GHzThis CPU2,699 points
03Intel Core i5-8500 @ 3.00GHzIntel2,428 points
05AMD Ryzen 5 PRO 3350GEAMD2,340 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01AMD Ryzen 5 PRO 3350GEAMD275.5 Mark/W
03Intel Core i5-8500 @ 3.00GHzIntel146.2 Mark/W
04Intel Core i7-7700K @ 4.20GHzThis CPU101.4 Mark/W

Bars are relative to the processors shown here, not a global ranking of every CPU.

Detailed benchmark results

Snapshot from 2026-10-20

Data CompressionKBytes/Sec
136,559.00
Data EncryptionMBytes/Sec
3,345.00
Extended InstructionsMillion Matrices/Sec
8,984.00
Find Prime NumbersMillion Primes/Sec
31.00
Floating Point MathMOps/Sec
18,840.00
Integer MathMOps/Sec
30,674.00
PhysicsFrames/Sec
654.00
Random String SortingThousand Strings/Sec
17,171.00

Core specifications

BrandIntel
CategoryDesktop
Release year2016
SocketLGA1151
Cores / threads4 / 8
Base clock4.20 GHz
Max turbo4.50 GHz
TDP95 W
Integrated graphics—

Memory support

DDR4
Memory typeDDR4
Official speedDDR4-2133
Maximum capacity64 GB

Cache hierarchy

L1I4 x 32 KB
L1D4 x 32 KB
L24 x 256 KB
L38 MB