Intel
IntelBX80677I77700K

2 Cores, 4 Threads @3.4 GHz, Sandy Bridge.
Release date ≤ Q4 2013.

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

Real World Speed
Performance profile from 296,388 user samples
3,546 User Benchmarks
Best Bench: 50% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Worst Bench: 34% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Poor: 34% Great: 50%
SPEED RANK: 425th / 1173
Gaming
Gaming 46%
Yacht
Desktop
Desktop 52%
Yacht
Workstation
Workstation 27%
Raft
292,842 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 80% Base clock 4.2 GHz, turbo 2.25 GHz (avg)
Poor: 80% Great: 111%
SPEED RANK: 39th / 1173
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed
45.7 % 96.1 % Hugely faster effective speed.
+110%
SC Mixed
Avg. Single Core Mixed Speed
81.6 Pts 136 Pts Much faster single-core speed.
+67%
QC Mixed
Avg. Quad Core Mixed Speed
207 Pts 470 Pts Hugely faster quad-core speed.
+127%
MC Mixed
Avg. Multi Core Mixed Speed
213 Pts 705 Pts Hugely faster multi-core speed.
+231%
SC Mixed
OC Single Core Mixed Speed
89.6 Pts 152 Pts Much faster OC single-core speed.
+70%
QC Mixed
OC Quad Core Mixed Speed
230 Pts 566 Pts Hugely faster OC quad-core speed.
+146%
MC Mixed
OC Multi Core Mixed Speed
232 Pts 806 Pts Hugely faster OC multi-core speed.
+247%
Market Share
Based on 18,583,852 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.03 % 1.55 % Insanely higher market share.
+5,067%
Value
Value For Money
67.1 % 89.8 % Much better value.
+34%
User Rating
UBM User Rating
55 % 129 % Hugely more popular.
+135%
Price
Price (score)
$105 Much cheaper.
+70%
$349
Age
Newest
67+ Months 30 Months Much more recent.
+55%
SC Int
Single Core Integer Speed
89.3 Pts 148 Pts Much faster single-core int speed.
+66%
SC Float
Single Core Floating Point Speed
89.9 Pts 157 Pts Much faster single-core fp speed.
+75%
QC Int
Quad Core Integer Speed
222 Pts 546 Pts Hugely faster quad-core int speed.
+146%
QC Float
Quad Core Floating Point Speed
229 Pts 584 Pts Hugely faster quad-core fp speed.
+155%
MC Int
Multi Core Integer Speed
223 Pts 730 Pts Hugely faster multi-core int speed.
+227%
MC Float
Multi Core Floating Point Speed
230 Pts 861 Pts Hugely faster multi-core fp speed.
+274%
Launch Date
Launch Date
Q3'11 Q1'17
Cache
Cache
3 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 14 nm
Recommended Price
Recommended Customer Price
$117.00 $339.00 - $350.00
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1066/1333 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 2000 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
850 MHz 350.00 MHz
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.1 GHz 1.15 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology
No 2.0
AES New Instructions
Intel® AES New Instructions
No Yes
PCI Express Revision
PCI Express Revision
2.0 3.0

More specs » More specs »
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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]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $252Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Ultra Fit 32GB $12
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