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IntelBX80684I58600
IntelBX80648I75820K
▲ 54552 ▼

6 Cores, 6 Threads @3.10 GHz, Coffee Lake.
Release date ≈ Q2 2018.

VS
▲ 669,879 ▼

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

Effective Speed 
+15%
Real World Speed
Performance profile from 119,935 user samples
Benchmark your CPU here
18,241 User Benchmarks
Best Bench: 95% Base clock 3.1 GHz, turbo 4.1 GHz (avg)
Worst Bench: 73% Base clock 3.1 GHz, turbo 1.6 GHz (avg)
Poor: 73% Great: 95%
SPEED RANK: 149th / 1442
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 73%
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: 281st / 1442
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed 		88.2 % Faster effective speed.
+15% 		76.8 %
Average Score 
+21%
Memory
Avg. Memory Latency 		87.7 Pts +2% 86.4 Pts
1-Core
Avg. Single Core Speed 		125 Pts Faster single-core speed.
+30% 		96.3 Pts
2-Core
Avg. Dual Core Speed 		248 Pts Faster dual-core speed.
+29% 		192 Pts
4-Core
Avg. Quad Core Speed 		484 Pts Much faster quad-core speed.
+33% 		364 Pts
8-Core
Avg. Octa Core Speed 		658 Pts Faster octa-core speed.
+11% 		594 Pts
Overclocked Score 
+8%
Memory
OC Memory Latency 		95.3 Pts +1% 94 Pts
1-Core
OC Single Core Speed 		132 Pts Slightly faster OC single-core speed.
+10% 		120 Pts
2-Core
OC Dual Core Speed 		262 Pts Faster OC dual-core speed.
+11% 		237 Pts
4-Core
OC Quad Core Speed 		517 Pts Faster OC quad-core speed.
+12% 		462 Pts
8-Core
OC Octa Core Speed 		765 Pts +4% 737 Pts
Value & Sentiment 
+63%
Market Share
Based on 67,716,938 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.06 % 0.19 % Hugely higher market share.
+217%
Value
Value For Money 		102 % Slightly better value.
+7% 		94.7 %
User Rating
UBM User Rating 		54 % 66 % More popular.
+22%
Price
Price (score) 		$165 $130 Cheaper.
+21%
Nice To Haves 
+2%
Age
Newest 		72+ Months Much more recent.
+38% 		116 Months
64-Core
OC Multi Core Speed 		764 Pts 933 Pts Faster OC 64-core speed.
+22%
64-Core
Avg. Multi Core Speed 		674 Pts 748 Pts Faster 64-core speed.
+11%
Specifications 
Launch Date
Launch Date 		Q2'18 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
Recommended Price
Recommended Customer Price 		$213.00 - $224.00 $389.00 - $396.00
Max Turbo Frequency
Max Turbo Frequency 		4.30 GHz 3.6 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 0 GT/s
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
Processor Graphics
Processor Graphics ‡ 		Intel® UHD Graphics 630 None
Package Size
Package Size 		37.5mm x 37.5mm 52.5mm x 45.0mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		No Yes
vPro Tech
Intel® vPro™ Technology ‡ 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		16 28

More specs » More specs »
Conclusion 
Average Bench 88.2%
Average Bench 76.8%
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Incredible performance for the $. Hard to justify going to an i7.  [Sep '18 GeneralDylan]

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

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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

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair 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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