COMPARE
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX80684I59600KF
IntelBX80648I75820K
▲ 824,322 ▼

6 Cores, 6 Threads @3.70 GHz, 95 W.
Release date ≈ Q2 2019.

VS
▲ 669,879 ▼

6 Cores, 12 Threads @3.3GHz, Haswell-E.
Release date: Q3 2014.

Effective Speed 
+21%
Real World Speed
Performance profile from 166,816 user samples
Benchmark your CPU here
65,122 User Benchmarks
Best Bench: 102% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 81% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 81% Great: 102%
SPEED RANK: 129th / 1452
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 77%
Battleship
101,694 User Benchmarks
Best Bench: 88% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 68% Base clock 3.3 GHz, turbo 1.2 GHz (avg)
Poor: 68% Great: 88%
SPEED RANK: 289th / 1452
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed 		93.2 % Faster effective speed.
+21% 		76.8 %
Average Score 
+29%
Memory
Avg. Memory Latency 		91.4 Pts Slightly lower memory latency.
+6% 		86.4 Pts
1-Core
Avg. Single Core Speed 		134 Pts Much faster single-core speed.
+39% 		96.3 Pts
2-Core
Avg. Dual Core Speed 		267 Pts Much faster dual-core speed.
+39% 		192 Pts
4-Core
Avg. Quad Core Speed 		521 Pts Much faster quad-core speed.
+43% 		364 Pts
8-Core
Avg. Octa Core Speed 		686 Pts Faster octa-core speed.
+15% 		594 Pts
Overclocked Score 
+19%
Memory
OC Memory Latency 		96.4 Pts +3% 94 Pts
1-Core
OC Single Core Speed 		151 Pts Faster OC single-core speed.
+26% 		120 Pts
2-Core
OC Dual Core Speed 		303 Pts Faster OC dual-core speed.
+28% 		237 Pts
4-Core
OC Quad Core Speed 		597 Pts Faster OC quad-core speed.
+29% 		462 Pts
8-Core
OC Octa Core Speed 		808 Pts Slightly faster OC octa-core speed.
+10% 		737 Pts
Value & Sentiment 
+34%
Market Share
Based on 68,074,519 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.23 % Hugely higher market share.
+130% 		0.1 %
Value
Value For Money 		105 % Better value.
+11% 		94.7 %
User Rating
UBM User Rating 		82 % More popular.
+24% 		66 %
Price
Price (score) 		$180 $130 Cheaper.
+28%
Nice To Haves 
+10%
Age
Newest 		62+ Months Much more recent.
+47% 		118 Months
64-Core
OC Multi Core Speed 		838 Pts 933 Pts Faster OC 64-core speed.
+11%
64-Core
Avg. Multi Core Speed 		712 Pts 748 Pts Slightly faster 64-core speed.
+5%
Specifications 
Launch Date
Launch Date 		Q1'19 Q3'14
Cache
Cache 		9 MB SmartCache 15 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.2, AVX 2.0, AES
Lithography
Lithography 		14 nm 22 nm
Max Turbo Frequency
Max Turbo Frequency 		4.60 GHz 3.6 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 0 GT/s
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 64 GB
Memory Types
Memory Types 		DDR4-2666 DDR4 1333/1600/2133
Memory Channels
Max # of Memory Channels 		2 4
Memory Bandwidth
Max Memory Bandwidth 		41.6 GB/s 68 GB/s
Package Size
Package Size 		37.5mm x 37.5mm 52.5mm x 45.0mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		No Yes
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		16 28

More specs » More specs »
Conclusion 
Average Bench 93.2%
Average Bench 76.8%
ADVERTISEMENT

My favorite CPU of all time after the Core i3-8100 that I upgraded it from, to this, the amazing Core i5-9600KF, that has no problem being soft overclocked to 4.8 GHz on all cores with no stability or heat issues. I just love it and I have been using and don't plan on upgrading it anytime soon. What a beast! [Jun '23 therealmustii]

MORE DETAILS

The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 CPUPro]

MORE DETAILS

User Builds 
65,122
101,694
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Processor Rankings (Price vs Performance) June 2024 CPU Rankings

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]

ADVERTISEMENT

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.

UserBenchmark of the month

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?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $164Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $149
Intel Core i5-12400F $110Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $89
Intel Core i5-13600K $245Nvidia RTX 4070 $549Crucial T700 M.2 4TB $359
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback