IntelBX80646I74790K
IntelBX80662I76700K
Real World Speed
Performance profile from 293,812 user samples
123,471 User Benchmarks
Best Bench: 100% Base clock 4.8 GHz, turbo 5.75 GHz (avg)
Worst Bench: 74% Base clock 4 GHz
Poor: 74% Great: 100%
SPEED RANK: 31st / 981
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
170,341 User Benchmarks
Best Bench: 106% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 80% Base clock 4 GHz, turbo 0.65 GHz (avg)
Poor: 80% Great: 106%
SPEED RANK: 23rd / 981
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 68%
Battle cruiser
Effective Speed
Effective CPU Speed
87.6 % -6% 92.6 % Slightly faster effective speed.
+6%
SC Mixed
Avg. Single Core Mixed Speed
124 Pts -5% 130 Pts +5%
QC Mixed
Avg. Quad Core Mixed Speed
429 Pts -6% 454 Pts Slightly faster quad-core speed.
+6%
MC Mixed
Avg. Multi Core Mixed Speed
640 Pts -8% 688 Pts Slightly faster multi-core speed.
+8%
SC Mixed
OC Single Core Mixed Speed
139 Pts -4% 144 Pts +4%
QC Mixed
OC Quad Core Mixed Speed
506 Pts -6% 536 Pts Slightly faster OC quad-core speed.
+6%
MC Mixed
OC Multi Core Mixed Speed
727 Pts -7% 777 Pts Slightly faster OC multi-core speed.
+7%
Market Share
Based on 6,886,549 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.65 % -28% 2.11 % Higher market share.
+28%
Value
Value For Money
81 % -13% 91.6 % Slightly better value.
+13%
User Rating
UBM User Rating
100 % -9% 109 % Slightly more popular.
+9%
Price
Price (score)
$360 -17% $300 Cheaper.
+17%
Age
Newest
43 Months -33% 29 Months Much more recent.
+33%
TDP
Thermal Design Power (TDP)
88 Watts +3% 91 Watts -3%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads 0% 8 threads 0%
Lithography
Manufacturing process
22 nm -36% 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
4 GHz 0% 4 GHz 0%
Turbo Clock
Turbo Clock Speed
4.4 GHz +5% 4.2 GHz -5%
SC Int
Single Core Integer Speed
139 Pts -2% 142 Pts +2%
SC Float
Single Core Floating Point Speed
138 Pts -7% 147 Pts Slightly faster single-core fp speed.
+7%
QC Int
Quad Core Integer Speed
506 Pts -3% 523 Pts +3%
QC Float
Quad Core Floating Point Speed
511 Pts -8% 551 Pts Slightly faster quad-core fp speed.
+8%
MC Int
Multi Core Integer Speed
690 Pts -4% 718 Pts +4%
MC Float
Multi Core Floating Point Speed
737 Pts -11% 816 Pts Slightly faster multi-core fp speed.
+11%
Series
CPU Architecture
Haswell (2013) Skylake (2015)
Socket
Motherboard Socket
FCLGA1150 FCLGA1151
Graphics
Integrated Graphics
HD 4600 HD 530
Launch Date
Launch Date
Q2'14 Q3'15
Lithography
Lithography
22 nm 14 nm
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth
25.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® HD Graphics 530
Graphics Output
Graphics Output
eDP/DP/HDMI/DVI/VGA eDP/DP/HDMI/DVI
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.25 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Graphics and IMC Lithography
Graphics and IMC Lithography
22 nm 14 nm
TSX-NI
Intel® TSX-NI
No Yes

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The Intel Core i7-4790K, codenamed Devil's Canyon, is an upgraded 4770K, Intel's current flagship i7. The 4790K features an improved thermal interface which enables it to dissipate heat more efficiently than the 4770K. Comparing the 4770K and 4790K shows that stock performance has improved by 13% which is consistent with the base clock jump from 3.5 GHz to 4.0 GHz. OC performance remains unchanged. Comparing the 4790K and 4790 shows that at stock clocks the 4790K is around 16% faster which considering the small price difference makes the 4790K a far better choice. Previously Intel targeted the unlocked K versions at overclockers but with Devil's Canyon they have included VT-d on the K chip and this time it's squarely aimed at both power users and overclockers alike. Until the release of Broadwell in six months, the 4790K is the high end CPU of choice. [Jul '14 CPUPro]

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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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Processor Rankings (Price vs Performance) January 2018 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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