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IntelBX80677I77740X
IntelBX80646I74790K
$348
▲ 53240 ▼

4 Cores, 8 Threads @4.30 GHz, Kaby Lake.
Release date ≈ Q3 2017.

VS
▲ 8841,575 ▼
 $348 

4 Cores, 8 Threads @4.0GHz, Haswell.
Release date: Q2 2014.

Effective Speed 
+10%
Real World Speed
Performance profile from 460,840 user samples
Benchmark your CPU here
5,094 User Benchmarks
Best Bench: 96% Base clock 4.3 GHz, turbo 5.15 GHz (avg)
Worst Bench: 74% Base clock 4.3 GHz, turbo 1 GHz (avg)
Poor: 74% Great: 96%
SPEED RANK: 160th / 1442
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 74%
Battleship
455,746 User Benchmarks
Best Bench: 87% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.7 GHz (avg)
Poor: 67% Great: 87%
SPEED RANK: 251st / 1442
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed 		87 % Faster effective speed.
+10% 		78.9 %
Average Score 
+16%
Memory
Avg. Memory Latency 		90.5 Pts +3% 88.1 Pts
1-Core
Avg. Single Core Speed 		133 Pts Faster single-core speed.
+17% 		114 Pts
2-Core
Avg. Dual Core Speed 		252 Pts Faster dual-core speed.
+17% 		216 Pts
4-Core
Avg. Quad Core Speed 		451 Pts Faster quad-core speed.
+19% 		378 Pts
8-Core
Avg. Octa Core Speed 		699 Pts Faster octa-core speed.
+25% 		560 Pts
Overclocked Score 
+17%
Memory
OC Memory Latency 		96.7 Pts 96.8 Pts +0%
1-Core
OC Single Core Speed 		151 Pts Faster OC single-core speed.
+18% 		128 Pts
2-Core
OC Dual Core Speed 		293 Pts Faster OC dual-core speed.
+18% 		248 Pts
4-Core
OC Quad Core Speed 		532 Pts Faster OC quad-core speed.
+23% 		433 Pts
8-Core
OC Octa Core Speed 		819 Pts Faster OC octa-core speed.
+27% 		643 Pts
Value & Sentiment 
+1,315%
Market Share
Based on 67,751,555 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.54 % Insanely higher market share.
+5,300%
Value
Value For Money 		107 % Much better value.
+45% 		74.2 %
User Rating
UBM User Rating 		53 % 88 % Much more popular.
+66%
Price
Price (score) 		$130 Much cheaper.
+63% 		$348
Nice To Haves 
+27%
Age
Newest 		81+ Months Much more recent.
+31% 		118 Months
64-Core
OC Multi Core Speed 		824 Pts Faster OC 64-core speed.
+26% 		654 Pts
64-Core
Avg. Multi Core Speed 		710 Pts Faster 64-core speed.
+24% 		573 Pts
Specifications 
Launch Date
Launch Date 		Q2'17 Q2'14
Cache
Cache 		8 MB 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography 		14 nm 22 nm
Max Turbo Frequency
Max Turbo Frequency 		4.50 GHz 4.4 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification 		PCG 2017X PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4-2666 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Processor Graphics
Processor Graphics ‡ 		None Intel® HD Graphics 4600

More specs » More specs »
Conclusion 
Average Bench 87%
Average Bench 78.9%
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Kaby Lake-X CPUs is probably one of the Intel's most embarrassing release ever for their HEDT platform. Requires X299 motherboard and only offered 16 PCIe lanes whilst being only little better than i7-7700K. [Oct '19 ColdSpy]

MORE DETAILS

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]

MORE DETAILS

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

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Gaming Desktop ProGaming

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - 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 current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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