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IntelBX80648I75820K
IntelBX8070811600
▲ 669,879 ▼

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

VS
▲ 53177 ▼

6 Cores, 12 Threads.
Release date ≈ Q2 2021.

Effective Speed 
+26%
Real World Speed
Performance profile from 103,990 user samples
Benchmark your CPU here
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
2,296 User Benchmarks
Best Bench: 104% Base clock 2.8 GHz, turbo 4.4 GHz (avg)
Worst Bench: 89% Base clock 2.8 GHz, turbo 2.8 GHz (avg)
Poor: 89% Great: 104%
SPEED RANK: 103rd / 1452
Gaming
Gaming 97%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 88%
Aircraft carrier
Effective Speed
Effective CPU Speed 		76.8 % 97 % Faster effective speed.
+26%
Average Score 
+45%
Memory
Avg. Memory Latency 		86.4 Pts 88.1 Pts +2%
1-Core
Avg. Single Core Speed 		96.3 Pts 156 Pts Much faster single-core speed.
+62%
2-Core
Avg. Dual Core Speed 		192 Pts 303 Pts Much faster dual-core speed.
+58%
4-Core
Avg. Quad Core Speed 		364 Pts 569 Pts Much faster quad-core speed.
+56%
8-Core
Avg. Octa Core Speed 		594 Pts 875 Pts Much faster octa-core speed.
+47%
Overclocked Score 
+28%
Memory
OC Memory Latency 		94 Pts 95.1 Pts +1%
1-Core
OC Single Core Speed 		120 Pts 166 Pts Much faster OC single-core speed.
+38%
2-Core
OC Dual Core Speed 		237 Pts 324 Pts Much faster OC dual-core speed.
+37%
4-Core
OC Quad Core Speed 		462 Pts 624 Pts Much faster OC quad-core speed.
+35%
8-Core
OC Octa Core Speed 		737 Pts 932 Pts Faster OC octa-core speed.
+26%
Value & Sentiment 
+190%
Market Share
Based on 67,989,036 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.17 % Hugely higher market share.
+750% 		0.02 %
Value
Value For Money 		94.7 % 117 % Better value.
+24%
User Rating
UBM User Rating 		66 % More popular.
+25% 		53 %
Price
Price (score) 		$130 Slightly cheaper.
+7% 		$140
Nice To Haves 
+45%
Age
Newest 		118 Months 37+ Months Much more recent.
+69%
64-Core
OC Multi Core Speed 		933 Pts 1136 Pts Faster OC 64-core speed.
+22%
64-Core
Avg. Multi Core Speed 		748 Pts 1072 Pts Much faster 64-core speed.
+43%
Conclusion 
Average Bench 76.8%
Average Bench 97%
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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

TDP 65W 6C 12T desktop CPU with base clock of 2.8Ghz, turbo up to 4.8Ghz. As the 11th gen, iGPU UHD 75- and DDR4 max up to 3200Mhz. [Jun '21 Gamejang]

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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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The Best.
CPUGPUSSD
Intel Core i5-12600K $170Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $122Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-13600K $260Nvidia RTX 4070 $550Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $28Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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