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 173,733 user samples
164,994 User Benchmarks
Best Bench: 106% Base clock 4 GHz
Worst Bench: 80% Base clock 4 GHz, turbo 0.75 GHz (avg)
Poor: 80% Great: 106%
SPEED RANK: 22nd / 980
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 68%
Battle cruiser
8,739 User Benchmarks
Best Bench: 105% Base clock 3.5 GHz, turbo 4.5 GHz (avg)
Worst Bench: 75% Base clock 3.5 GHz, turbo 1.2 GHz (avg)
Poor: 75% Great: 105%
SPEED RANK: 29th / 980
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 78%
Battleship
Effective Speed
Effective CPU Speed
92.5 % +5% 88.4 % -5%
SC Mixed
Avg. Single Core Mixed Speed
130 Pts Faster single-core speed.
+18%
110 Pts -18%
QC Mixed
Avg. Quad Core Mixed Speed
453 Pts +4% 434 Pts -4%
MC Mixed
Avg. Multi Core Mixed Speed
688 Pts -28% 879 Pts Faster multi-core speed.
+28%
SC Mixed
OC Single Core Mixed Speed
144 Pts Slightly faster OC single-core speed.
+9%
132 Pts -9%
QC Mixed
OC Quad Core Mixed Speed
537 Pts +4% 518 Pts -4%
MC Mixed
OC Multi Core Mixed Speed
778 Pts -33% 1034 Pts Much faster OC multi-core speed.
+33%
Market Share
Based on 6,241,704 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.39 % Insanely higher market share.
+1,228%
0.18 % -1,228%
Value
Value For Money
95.2 % Much better value.
+41%
67.5 % -41%
User Rating
UBM User Rating
107 % Much more popular.
+53%
70 % -53%
Price
Price (score)
$270 Much cheaper.
+55%
$599 -55%
Age
Newest
28 Months Much more recent.
+30%
40 Months -30%
TDP
Thermal Design Power (TDP)
91 Watts Much more energy efficient.
+35%
140 Watts -35%
Cores
CPU Processing Cores
4 cores -50% 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
8 threads -50% 12 threads Much higher thread count.
+50%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm -36%
Base Clock
Base Clock Speed
4 GHz Slightly faster base frequency.
+14%
3.5 GHz -14%
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+14%
3.7 GHz -14%
SC Int
Single Core Integer Speed
142 Pts Slightly faster single-core int speed.
+8%
132 Pts -8%
SC Float
Single Core Floating Point Speed
147 Pts Slightly faster single-core fp speed.
+11%
133 Pts -11%
QC Int
Quad Core Integer Speed
523 Pts +1% 517 Pts -1%
QC Float
Quad Core Floating Point Speed
552 Pts Slightly faster quad-core fp speed.
+6%
520 Pts -6%
MC Int
Multi Core Integer Speed
718 Pts -37% 984 Pts Much faster multi-core int speed.
+37%
MC Float
Multi Core Floating Point Speed
815 Pts -29% 1051 Pts Faster multi-core fp speed.
+29%
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

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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) December 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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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  • - 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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CPUGPUSSD
Intel Core i7-7700K $313Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $285AMD RX 480 $265Samsung 850 Evo 500GB $138
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $260Samsung 850 Pro 256GB $113
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $200SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $215SanDisk Ultra Fit 32GB $10
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