IntelBX80646I74790
IntelBX80662I56600K
Real World Speed
Performance profile from 121,903 user samples
35,342 User Benchmarks
Best Bench: 86% Base clock 3.6 GHz, turbo 3.8 GHz (avg)
Worst Bench: 67% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 67% Great: 86%
SPEED RANK: 55th / 980
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 57%
Gunboat
86,561 User Benchmarks
Best Bench: 108% Base clock 3.5 GHz
Worst Bench: 69% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 69% Great: 108%
SPEED RANK: 27th / 980
Gaming
Gaming 90%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 54%
Yacht
Effective Speed
Effective CPU Speed
77.4 % -16% 89.7 % Faster effective speed.
+16%
SC Mixed
Avg. Single Core Mixed Speed
110 Pts -12% 123 Pts Slightly faster single-core speed.
+12%
QC Mixed
Avg. Quad Core Mixed Speed
378 Pts -23% 466 Pts Faster quad-core speed.
+23%
MC Mixed
Avg. Multi Core Mixed Speed
566 Pts Faster multi-core speed.
+19%
476 Pts -19%
SC Mixed
OC Single Core Mixed Speed
119 Pts -22% 145 Pts Faster OC single-core speed.
+22%
QC Mixed
OC Quad Core Mixed Speed
439 Pts -29% 567 Pts Faster OC quad-core speed.
+29%
MC Mixed
OC Multi Core Mixed Speed
600 Pts +5% 572 Pts -5%
Market Share
Based on 5,492,308 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.9 % -91% 1.72 % Hugely higher market share.
+91%
Value
Value For Money
75.8 % -32% 100 % Much better value.
+32%
User Rating
UBM User Rating
76 % -38% 105 % Much more popular.
+38%
Price
Price (score)
$308 -30% $217 Cheaper.
+30%
Age
Newest
41 Months -37% 26 Months Much more recent.
+37%
TDP
Thermal Design Power (TDP)
84 Watts Slightly more energy efficient.
+8%
91 Watts -8%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads -100%
Lithography
Manufacturing process
22 nm -36% 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.6 GHz +3% 3.5 GHz -3%
Turbo Clock
Turbo Clock Speed
4 GHz +3% 3.9 GHz -3%
SC Int
Single Core Integer Speed
118 Pts -19% 141 Pts Faster single-core int speed.
+19%
SC Float
Single Core Floating Point Speed
119 Pts -25% 149 Pts Faster single-core fp speed.
+25%
QC Int
Quad Core Integer Speed
439 Pts -26% 552 Pts Faster quad-core int speed.
+26%
QC Float
Quad Core Floating Point Speed
439 Pts -34% 587 Pts Much faster quad-core fp speed.
+34%
MC Int
Multi Core Integer Speed
571 Pts +3% 556 Pts -3%
MC Float
Multi Core Floating Point Speed
607 Pts +3% 590 Pts -3%
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
Cache
Cache
8 MB SmartCache 6 MB SmartCache
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$303.00 - $312.00 $242.00 - $243.00
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
1.2 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
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
Up to 3.0 3.0

More specs » More specs »
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The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

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The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 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]

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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.
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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.
  • - Identify the strongest components in your PC.
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  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
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CPUGPUSSD
Intel Core i7-7700K $300Nvidia GTX 1070 $394Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $491Samsung 850 Pro 256GB $128
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $950SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3000 C15 2x8GB $163SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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