IntelBX80671I76900K
IntelBX80662I76700K

8 Cores, 16 Threads @3.2GHz, Broadwell-E.
Release date: Q2 2016.

VS
About

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 356,283 user samples
4,493 User Benchmarks
Best Bench: 94% Base clock 3.2 GHz, turbo 3.6 GHz (avg)
Worst Bench: 69% Base clock 3.2 GHz, turbo 1.65 GHz (avg)
Poor: 69% Great: 94%
SPEED RANK: 63rd / 1206
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 80%
Battleship
Workstation
Workstation 80%
Battleship
351,790 User Benchmarks
Best Bench: 94% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 67% Great: 94%
SPEED RANK: 60th / 1206
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
80.2 % 81 % +1%
1-Core
Avg. Single Core Mixed Speed
114 Pts 126 Pts Slightly faster single-core speed.
+11%
2-Core
Avg. Dual Core Mixed Speed
228 Pts 243 Pts Slightly faster dual-core speed.
+7%
4-Core
Avg. Quad Core Mixed Speed
458 Pts Slightly faster quad-core speed.
+6%
433 Pts
8-Core
Avg. Octa Core Mixed Speed
850 Pts Much faster octa-core speed.
+32%
645 Pts
1-Core
OC Single Core Mixed Speed
135 Pts 143 Pts Slightly faster OC single-core speed.
+6%
2-Core
OC Dual Core Mixed Speed
268 Pts 283 Pts Slightly faster OC dual-core speed.
+6%
4-Core
OC Quad Core Mixed Speed
535 Pts +1% 528 Pts
8-Core
OC Octa Core Mixed Speed
1034 Pts Much faster OC octa-core speed.
+38%
749 Pts
Market Share
Based on 22,716,699 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 1.39 % Insanely higher market share.
+6,850%
Value
Value For Money
60.3 % 79.5 % Much better value.
+32%
User Rating
UBM User Rating
58 % 114 % Hugely more popular.
+97%
Price
Price (score)
$785 $298 Much cheaper.
+62%
Age
Newest
42 Months More recent.
+19%
52 Months
TDP
Thermal Design Power (TDP)
140 Watts 91 Watts Much more energy efficient.
+35%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+100%
4 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+100%
8 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.2 GHz 4 GHz Faster base frequency.
+25%
Turbo Clock
Turbo Clock Speed
4 GHz 4.2 GHz +5%
64-Core
OC Multi Core Mixed Speed
1371 Pts Hugely faster OC 64-core speed.
+83%
751 Pts
64-Core
Avg. Multi Core Mixed Speed
1174 Pts Hugely faster 64-core speed.
+80%
652 Pts
Series
CPU Architecture
Broadwell-E Skylake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1151
Graphics
Integrated Graphics
None HD 530
Launch Date
Launch Date
Q2'16 Q3'15
Cache
Cache
20 MB 8 MB SmartCache
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 64 GB
Memory Types
Memory Types
DDR4 2400/2133 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels
4 2
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 530
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »
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The Core i7-6900K is one of four new Broadwell-E prosumer CPUs. This model has eight cores with base and turbo frequencies of 3.2 and 4.0 GHz respectively. The 6900K is based on a 14 nm architecture, it has a TDP of 140 watts, 40 PCIe 3.0 lanes and no integrated graphics. Because of its MSRP of $1,100, the 6900K only makes sense for very niche use cases which include top end graphics design and video production. Comparing the 6900K and 6700K shows that for typical desktop use the 6900K only offers a gain of around 12% for a whopping three fold price increase. This is because desktop computing largely depends on single core performance and the Skylake i7-6700K is both clocked higher and has higher IPC due to its one generation lead over the 6900K. That said, as a workstation CPU the 6900K is bested only by the $2,000 flagship ten core 6950X. (6900K vs 6950X[Jun '16 CPUPro]

MORE DETAILS

The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) December 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. 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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Intel Core i7-9700K $360Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
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WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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