IntelBX80662I76700K
IntelBX80637I73770K

4 Cores, 8 Threads
@4.0GHz Skylake (2015)

4 Cores, 8 Threads
@3.5GHz Ivy Bridge (2012)

Real World Speed
Performance profile from 250,491 user samples
201,766 User Benchmarks
Best Bench: 103% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 77% Base clock 4 GHz, turbo 0.2 GHz (avg)
Poor: 77% Great: 103%
SPEED RANK: 34th / 1117
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
48,725 User Benchmarks
Best Bench: 90% Base clock 5 GHz, turbo 6.95 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 0.2 GHz (avg)
Poor: 57% Great: 90%
SPEED RANK: 104th / 1117
Gaming
Gaming 73%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 54%
Yacht
Effective Speed
Effective CPU Speed
89 % Faster effective speed.
+22%
73 %
SC Mixed
Avg. Single Core Mixed Speed
127 Pts Faster single-core speed.
+22%
104 Pts
QC Mixed
Avg. Quad Core Mixed Speed
431 Pts Faster quad-core speed.
+21%
355 Pts
MC Mixed
Avg. Multi Core Mixed Speed
676 Pts Faster multi-core speed.
+25%
539 Pts
SC Mixed
OC Single Core Mixed Speed
142 Pts Slightly faster OC single-core speed.
+14%
125 Pts
QC Mixed
OC Quad Core Mixed Speed
521 Pts Slightly faster OC quad-core speed.
+15%
454 Pts
MC Mixed
OC Multi Core Mixed Speed
768 Pts Faster OC multi-core speed.
+19%
645 Pts
Market Share
Based on 9,787,711 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.66 % Hugely higher market share.
+219%
0.52 %
Value
Value For Money
86 % Much better value.
+43%
60 %
User Rating
UBM User Rating
73 % More popular.
+16%
63 %
Price
Price (score)
$320 Much cheaper.
+35%
$492
Age
Newest
35 Months Much more recent.
+53%
75 Months
TDP
Thermal Design Power (TDP)
91 Watts 77 Watts More energy efficient.
+15%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
4 GHz Slightly faster base frequency.
+14%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+8%
3.9 GHz
SC Int
Single Core Integer Speed
138 Pts Slightly faster single-core int speed.
+11%
124 Pts
SC Float
Single Core Floating Point Speed
147 Pts Faster single-core fp speed.
+17%
126 Pts
QC Int
Quad Core Integer Speed
512 Pts Slightly faster quad-core int speed.
+15%
446 Pts
QC Float
Quad Core Floating Point Speed
542 Pts Faster quad-core fp speed.
+19%
455 Pts
MC Int
Multi Core Integer Speed
706 Pts Slightly faster multi-core int speed.
+11%
636 Pts
MC Float
Multi Core Floating Point Speed
808 Pts Faster multi-core fp speed.
+27%
634 Pts
Series
CPU Architecture
Skylake (2015) Ivy Bridge (2012)
Socket
Motherboard Socket
FCLGA1151 FCLGA1155
Graphics
Integrated Graphics
HD 530 HD 4000
Launch Date
Launch Date
Q3'15 Q2'12
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $332.00 - $342.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) 2011D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR3 1333/1600
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 4000
Graphics Base Frequency
Graphics Base Frequency
350 MHz 650 MHz
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 up to 1x16, 2x8, 1x8 & 2x4

More specs » More specs »
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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]

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The third gen Ivy Bridge Core i7-3770K can't really be described as a consumer orientated processor. With 8 threads and four cores its capabilities are better aligned to server use. For price insensitive consumers that want the best of the best, this is currently one of the fastest processors available. The PassMark Single Thread score of 2080 points put the 3770K right at the top of the pack in terms of raw processing power and real world performance. The GeekBench and PassMark scores of 17210 and 9653 are within 20% or so of the best we have ever seen. Despite the near record breaking processing throughputs the 3770K is only rated at 77 TDP, which is also very reasonable by historical standards. For typical consumer use there are better value propositions out there. [May '13 CPUPro]

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Processor Rankings (Price vs Performance) July 2018 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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CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $408Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i5-8600K $235AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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