IntelBX80646I74790K
IntelBX80662I76700K
Real World Speed
Performance profile from 336,734 user samples
131,857 User Benchmarks
Best Bench: 101% Base clock 4 GHz
Worst Bench: 72% Base clock 4 GHz
Poor: 72% Great: 101%
SPEED RANK: 41st / 1100
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
204,877 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 76% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 76% Great: 105%
SPEED RANK: 30th / 1100
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
88.4 % 90.6 % +2%
SC Mixed
Avg. Single Core Mixed Speed
125 Pts 128 Pts +2%
QC Mixed
Avg. Quad Core Mixed Speed
433 Pts 442 Pts +2%
MC Mixed
Avg. Multi Core Mixed Speed
646 Pts 679 Pts Slightly faster multi-core speed.
+5%
SC Mixed
OC Single Core Mixed Speed
138 Pts 144 Pts +4%
QC Mixed
OC Quad Core Mixed Speed
515 Pts 527 Pts +2%
MC Mixed
OC Multi Core Mixed Speed
727 Pts 771 Pts Slightly faster OC multi-core speed.
+6%
Market Share
Based on 8,488,958 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.44 % 1.8 % Higher market share.
+25%
Value
Value For Money
83.1 % 83.8 % +1%
User Rating
UBM User Rating
101 % Slightly more popular.
+11%
91 %
Price
Price (score)
$344 +4% $359
Age
Newest
46 Months 32 Months Much more recent.
+30%
TDP
Thermal Design Power (TDP)
88 Watts +3% 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
4 GHz 4 GHz
Turbo Clock
Turbo Clock Speed
4.4 GHz +5% 4.2 GHz
SC Int
Single Core Integer Speed
138 Pts 142 Pts +3%
SC Float
Single Core Floating Point Speed
138 Pts 147 Pts Slightly faster single-core fp speed.
+7%
QC Int
Quad Core Integer Speed
510 Pts 516 Pts +1%
QC Float
Quad Core Floating Point Speed
508 Pts 547 Pts Slightly faster quad-core fp speed.
+8%
MC Int
Multi Core Integer Speed
688 Pts 710 Pts +3%
MC Float
Multi Core Floating Point Speed
737 Pts 813 Pts Slightly faster multi-core fp speed.
+10%
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) April 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.
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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.
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  • - 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.
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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Extreme 16GB $18
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