IntelBX80677I77700K
IntelBX80619I73930K

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

VS
About

6 Cores, 12 Threads @3.2GHz, Sandy Bridge-E.
Release date: Q4 2011.

Real World Speed
Performance profile from 325,397 user samples
303,929 User Benchmarks
Best Bench: 97% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 66% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 66% Great: 97%
SPEED RANK: 42nd / 1182
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 61%
Destroyer
21,468 User Benchmarks
Best Bench: 79% Base clock 3.2 GHz, turbo 4.65 GHz (avg)
Worst Bench: 53% Base clock 3.2 GHz, turbo 0.5 GHz (avg)
Poor: 53% Great: 79%
SPEED RANK: 115th / 1182
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed
82.2 % Faster effective speed.
+25%
65.9 %
1-Core
Avg. Single Core Mixed Speed
135 Pts Much faster single-core speed.
+39%
97 Pts
2-Core
Avg. Dual Core Mixed Speed
261 Pts Much faster dual-core speed.
+35%
193 Pts
4-Core
Avg. Quad Core Mixed Speed
462 Pts Faster quad-core speed.
+24%
372 Pts
8-Core
Avg. Octa Core Mixed Speed
687 Pts Faster octa-core speed.
+17%
588 Pts
64-Core
Avg. Multi Core Mixed Speed
699 Pts 722 Pts +3%
1-Core
OC Single Core Mixed Speed
151 Pts Much faster OC single-core speed.
+30%
116 Pts
2-Core
OC Dual Core Mixed Speed
298 Pts Faster OC dual-core speed.
+29%
231 Pts
4-Core
OC Quad Core Mixed Speed
555 Pts Faster OC quad-core speed.
+23%
450 Pts
8-Core
OC Octa Core Mixed Speed
786 Pts Slightly faster OC octa-core speed.
+9%
720 Pts
64-Core
OC Multi Core Mixed Speed
794 Pts 871 Pts Slightly faster OC 64-core speed.
+10%
Market Share
Based on 19,603,573 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.46 % Insanely higher market share.
+1,023%
0.13 %
Value
Value For Money
78.2 % Much better value.
+39%
56.2 %
User Rating
UBM User Rating
100 % Much more popular.
+59%
63 %
Price
Price (score)
$333 Much cheaper.
+33%
$495
Age
Newest
31 Months Much more recent.
+67%
93 Months
TDP
Thermal Design Power (TDP)
91 Watts Much more energy efficient.
+30%
130 Watts
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
8 threads 12 threads Much higher thread count.
+50%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
4.2 GHz Much faster base frequency.
+31%
3.2 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+18%
3.8 GHz
Series
CPU Architecture
Kaby Lake Sandy Bridge-E
Socket
Motherboard Socket
FCLGA1151 FCLGA2011
Graphics
Integrated Graphics
HD 630 None
Launch Date
Launch Date
Q1'17 Q4'11
Cache
Cache
8 MB 12 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.2, AVX, AES
Lithography
Lithography
14 nm 32 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 N/A
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR3 1066/1333/1600
Memory Channels
Max # of Memory Channels
2 4
Package Size
Package Size
37.5mm x 37.5mm 52.5mm x 45.0mm
PCI Express Revision
PCI Express Revision
3.0 2.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 40

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

The 3930K has an outstanding multi-core performance profile, almost as good as you can buy at any budget, which considering its relatively reasonable price tag really make it stand out from the crowd. The reason for the extraordinary multi-core benchmark scores is down to the 3930K's six cores. Having six cores effectively results in a 50% lead over quad core cpus and a 200% percent lead over dual core cpu's. Typical desktop users rarely use more than two cores simultaneously thus rendering the additional four cores largely redundant for consumer use. In terms of regular use this CPU will offer virtually no better real world performance than the leaders in my Desktop CPU Group Test. For server orientated workloads the 3930K offers both outstanding performance and superb value for money. [Jun '13 CPUPro]

MORE DETAILS

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

We calculate effective speed which measures real world performance for typical gamers and desktop users. 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.

UserBenchmark of the month

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
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Intel Core i5-9600K $219Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $196AMD RX 580 $167Samsung 850 Pro 256GB $97
HDDRAMUSB
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