IntelBX80677I77740X
IntelBX80677I77700K

4 Cores, 8 Threads @4.30 GHz, Kaby Lake.
Release date ≈ Q3 2017.

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 488,671 user samples
3,856 User Benchmarks
Best Bench: 97% Base clock 4.3 GHz, turbo 4.95 GHz (avg)
Worst Bench: 74% Base clock 4.3 GHz, turbo 4.45 GHz (avg)
Poor: 74% Great: 97%
SPEED RANK: 45th / 1275
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 74%
Battleship
484,815 User Benchmarks
Best Bench: 97% Base clock 4.2 GHz, turbo 5.15 GHz (avg)
Worst Bench: 75% Base clock 4.2 GHz, turbo 1.75 GHz (avg)
Poor: 75% Great: 97%
SPEED RANK: 48th / 1275
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
87.7 % +0% 87.5 %
Memory
Avg. Memory Latency
91.4 Pts +0% 91 Pts
1-Core
Avg. Single Core Mixed Speed
135 Pts +1% 134 Pts
2-Core
Avg. Dual Core Mixed Speed
259 Pts +1% 256 Pts
4-Core
Avg. Quad Core Mixed Speed
454 Pts 454 Pts
8-Core
Avg. Octa Core Mixed Speed
687 Pts +1% 682 Pts
Memory
OC Memory Latency
97 Pts 97.1 Pts +0%
1-Core
OC Single Core Mixed Speed
152 Pts +3% 148 Pts
2-Core
OC Dual Core Mixed Speed
293 Pts 294 Pts +0%
4-Core
OC Quad Core Mixed Speed
537 Pts 539 Pts +0%
8-Core
OC Octa Core Mixed Speed
787 Pts +0% 784 Pts
Market Share
Based on 38,721,966 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 1.12 % Insanely higher market share.
+11,100%
Value
Value For Money
87.5 % Slightly better value.
+9%
80.4 %
User Rating
UBM User Rating
53 % 80 % Much more popular.
+51%
Price
Price (score)
$280 Cheaper.
+26%
$379
Age
Newest
42+ Months More recent.
+12%
48 Months
64-Core
OC Multi Core Mixed Speed
782 Pts 787 Pts +1%
64-Core
Avg. Multi Core Mixed Speed
697 Pts +1% 693 Pts
Launch Date
Launch Date
Q2'17 Q1'17
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Thermal Solution Specification
Thermal Solution Specification
PCG 2017X PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 630

More specs » More specs »
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Kaby Lake-X CPUs is probably one of the Intel's most embarrassing release ever for their HEDT platform. Requires X299 motherboard and only offered 16 PCIe lanes whilst being only little better than i7-7700K. [Oct '19 ColdSpy]

MORE DETAILS

The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

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Processor Rankings (Price vs Performance) January 2021 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

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