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IntelBX80684I99900KS
IntelBX80648I75820K
▲ 573,635 ▼
  

8 Cores, 16 Threads @4.00 GHz, 127 W.
Release date ≈ Q4 2019.

VS
▲ 669,880 ▼

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

Effective Speed 
+29%
Real World Speed
Performance profile from 114,534 user samples
Benchmark your CPU here
12,840 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 5.1 GHz (avg)
Worst Bench: 89% Base clock 4 GHz, turbo 5 GHz (avg)
Poor: 89% Great: 105%
SPEED RANK: 94th / 1463
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 99%
Nuclear submarine
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: 296th / 1463
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed 		98.8 % Faster effective speed.
+29% 		76.8 %
Average Score 
+47%
Memory
Avg. Memory Latency 		92.8 Pts Slightly lower memory latency.
+7% 		86.4 Pts
1-Core
Avg. Single Core Speed 		147 Pts Much faster single-core speed.
+53% 		96.3 Pts
2-Core
Avg. Dual Core Speed 		289 Pts Much faster dual-core speed.
+51% 		192 Pts
4-Core
Avg. Quad Core Speed 		563 Pts Much faster quad-core speed.
+55% 		364 Pts
8-Core
Avg. Octa Core Speed 		1016 Pts Much faster octa-core speed.
+71% 		594 Pts
Overclocked Score 
+30%
Memory
OC Memory Latency 		97.7 Pts +4% 94 Pts
1-Core
OC Single Core Speed 		155 Pts Faster OC single-core speed.
+29% 		120 Pts
2-Core
OC Dual Core Speed 		308 Pts Faster OC dual-core speed.
+30% 		237 Pts
4-Core
OC Quad Core Speed 		614 Pts Much faster OC quad-core speed.
+33% 		462 Pts
8-Core
OC Octa Core Speed 		1148 Pts Much faster OC octa-core speed.
+56% 		737 Pts
Value & Sentiment 
+191%
Market Share
Based on 68,725,933 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.03 % 0.14 % Hugely higher market share.
+367%
User Rating
UBM User Rating 		57 % 66 % More popular.
+16%
Nice To Haves 
+78%
Age
Newest 		59+ Months Much more recent.
+52% 		122 Months
64-Core
OC Multi Core Speed 		1664 Pts Much faster OC 64-core speed.
+78% 		933 Pts
64-Core
Avg. Multi Core Speed 		1531 Pts Hugely faster 64-core speed.
+105% 		748 Pts
Specifications 
Launch Date
Launch Date 		Q4'19 Q3'14
Cache
Cache 		16 MB Intel® Smart Cache 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 		5.00 GHz 3.6 GHz
Bus Speed
Bus Speed 		8 GT/s 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
Processor Graphics
Processor Graphics ‡ 		Intel® UHD Graphics 630 None
Package Size
Package Size 		37.5mm x 37.5mm 52.5mm x 45.0mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2 2.0
PCI Express Revision
PCI Express Revision 		3 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		16 28

More specs » More specs »
Conclusion 
Average Bench 98.8%
Average Bench 76.8%

The Intel's specially binned i9-9900K, featuring 5GHz all core boost and base clock of 4GHz. This CPU is one of the most powerful Intel CPU in term of day-to-day and gaming performance but with TDP of 127W, bulky air cooler or 240mm AIO is recommended to make sure the CPU doesn't overheat, and open loop liquid cooling if you want to OC. [Jun '20 ColdSpy]

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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