IntelBX80662I76700K
IntelBX80648I75930K

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

6 Cores, 12 Threads
@3.5GHz Haswell-E (2014)

Real World Speed
Performance profile from 201,093 user samples
191,250 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 75% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 75% Great: 105%
SPEED RANK: 27th / 985
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
9,843 User Benchmarks
Best Bench: 106% Base clock 3.5 GHz, turbo 4.6 GHz (avg)
Worst Bench: 74% Base clock 3.5 GHz, turbo 1.45 GHz (avg)
Poor: 74% Great: 106%
SPEED RANK: 30th / 985
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 78%
Battleship
Effective Speed
Effective CPU Speed
90.8 % +2% 88.9 %
SC Mixed
Avg. Single Core Mixed Speed
128 Pts Faster single-core speed.
+15%
111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
444 Pts +2% 436 Pts
MC Mixed
Avg. Multi Core Mixed Speed
679 Pts 884 Pts Much faster multi-core speed.
+30%
SC Mixed
OC Single Core Mixed Speed
144 Pts Slightly faster OC single-core speed.
+9%
132 Pts
QC Mixed
OC Quad Core Mixed Speed
536 Pts +2% 524 Pts
MC Mixed
OC Multi Core Mixed Speed
770 Pts 1044 Pts Much faster OC multi-core speed.
+36%
Market Share
Based on 7,413,028 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.87 % Insanely higher market share.
+1,600%
0.11 %
Value
Value For Money
86.3 % Better value.
+27%
67.9 %
User Rating
UBM User Rating
94 % Much more popular.
+36%
69 %
Price
Price (score)
$334 Much cheaper.
+44%
$599
Age
Newest
30 Months More recent.
+29%
42 Months
TDP
Thermal Design Power (TDP)
91 Watts Much more energy efficient.
+35%
140 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.
+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.
+14%
3.7 GHz
SC Int
Single Core Integer Speed
141 Pts Slightly faster single-core int speed.
+7%
132 Pts
SC Float
Single Core Floating Point Speed
147 Pts Slightly faster single-core fp speed.
+11%
132 Pts
QC Int
Quad Core Integer Speed
523 Pts 524 Pts +0%
QC Float
Quad Core Floating Point Speed
550 Pts Slightly faster quad-core fp speed.
+5%
522 Pts
MC Int
Multi Core Integer Speed
712 Pts 994 Pts Much faster multi-core int speed.
+40%
MC Float
Multi Core Floating Point Speed
809 Pts 1067 Pts Much faster multi-core fp speed.
+32%
Series
CPU Architecture
Skylake (2015) Haswell-E (2014)
Socket
Motherboard Socket
FCLGA1151 LGA2011-V3
Graphics
Integrated Graphics
HD 530 None
Launch Date
Launch Date
Q3'15 Q3'14
Cache
Cache
8 MB SmartCache 15 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.2, AVX 2.0, AES
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $583.00 - $594.00
Bus Speed
Bus Speed
8 GT/s DMI3 0 GT/s
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4 1333/1600/2133
Memory Channels
Max # of Memory Channels
2 4
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 68 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 None
Package Size
Package Size
37.5mm x 37.5mm 52.5mm x 45.0mm
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 40

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 Intel 5930K is Intel's new middle tier Haswell-E prosumer CPU. This model has base/turbo clocks of 3.5/3.7 GHz and sports 6 physical cores with 12 hyperthreads. The 5930K offers enormous processing throughput but like its Haswell-E siblings it lacks in single and dual-core speed. Comparing the 5930K and 4790K shows that the 4790K offers nearly 20% more single and dual core throughput and is priced nearly 40% lower than the 5930K. The 5930K does win hands down on multi-core workloads but these are not generally relevant to consumers. Finally since the Haswell-E architecture is coupled with the X99 chipset it requires far more expensive DDR4 RAM with offers little upside over DDR3. [Sep '14 CPUPro]

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Processor Rankings (Price vs Performance) February 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

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Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $146
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HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $200SanDisk Extreme 16GB $18
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