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IntelBX80684I59600K
IntelBX80684I78086K

6 Cores, 6 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2018.

6 Cores, 12 Threads @4.00 GHz, Coffee Lake.
Release date ≈ Q2 2018.

Real World Speed
Performance profile from 359,280 user samples
321,194 User Benchmarks
Best Bench: 103% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 82% Base clock 3.7 GHz, turbo 4.3 GHz (avg)
Poor: 82% Great: 103%
SPEED RANK: 138th / 1468
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 77%
Battleship
38,086 User Benchmarks
Best Bench: 102% Base clock 4 GHz, turbo 5.15 GHz (avg)
Worst Bench: 81% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 81% Great: 102%
SPEED RANK: 153rd / 1468
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
Effective Speed
Effective CPU Speed
93.2 % +3% 90.8 %
10 Mar21|HardwareLUXX
Processor non grata: Rocket Lake-S...
6 % BFV 3%, SotTR 9%, MetroEx 2%, Divis2 9%
Memory
Avg. Memory Latency
91 Pts 91.6 Pts +1%
1-Core
Avg. Single Core Speed
135 Pts +2% 132 Pts
2-Core
Avg. Dual Core Speed
268 Pts +5% 256 Pts
4-Core
Avg. Quad Core Speed
525 Pts Slightly faster quad-core speed.
+8%
484 Pts
8-Core
Avg. Octa Core Speed
688 Pts 800 Pts Faster octa-core speed.
+16%
Memory
OC Memory Latency
96.5 Pts 97 Pts +1%
1-Core
OC Single Core Speed
153 Pts 153 Pts
2-Core
OC Dual Core Speed
306 Pts +1% 304 Pts
4-Core
OC Quad Core Speed
604 Pts +4% 580 Pts
8-Core
OC Octa Core Speed
822 Pts 948 Pts Faster OC octa-core speed.
+15%
Market Share
Based on 69,051,549 CPUs tested
Market Share
Market Share (trailing 30 days)
1.15 % Hugely higher market share.
+858%
0.12 %
Value
Value For Money
115 % Much better value.
+40%
82.2 %
User Rating
UBM User Rating
92 % Much more popular.
+67%
55 %
Price
Price (score)
$130 Much cheaper.
+67%
$399
Age
Newest
73 Months Slightly more recent.
+5%
77+ Months
64-Core
OC Multi Core Speed
848 Pts 1,194 Pts Much faster OC 64-core speed.
+41%
64-Core
Avg. Multi Core Speed
717 Pts 1,008 Pts Much faster 64-core speed.
+41%
Launch Date
Launch Date
Q4'18 Q2'18
Cache
Cache
9 MB SmartCache 12 MB SmartCache
Recommended Price
Recommended Customer Price
$262.00 - $263.00 N/A
Max Turbo Frequency
Max Turbo Frequency
4.60 GHz 5.00 GHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.20 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No

More specs » More specs »

The hex-core i5-9600K is third in Intel’s line-up of 9th generation Coffee Lake CPUs. It has a TDP of 95W and requires an aftermarket cooler (such as the $20 GAMMAXX 400). The 9600K was designed to be overclocked. Once this is enabled in the BIOS (requires a Z-series motherboard), the 9600K runs 10% faster. In terms of performance, the i5-9600K is almost unbeatable for desktop users and it has sufficient multi-core performance to handle all but the most demanding workstation tasks. For CPU encoding (Cinebench, Blender, Handbrake etc.) the Ryzen 3000 series offers great 64-core performance. For example the overclocked Ryzen 3600 is approximately 13% worse for gaming, desktop and normal consumer workloads but it is 27% faster for 64-core processing. CPU encoding is akin to using hair clippers on a lawn, encoding tasks are far better performed by dedicated hardware such an NVENC or QuickSync. At stock clocks the i5-9600K is around 8% slower than Intel’s flagship i9-9900K but when both are overclocked, the 9600K closes the gaming gap to within two or three percent. Considering that the 9900K is the fastest gaming processor available, and almost twice the price of the 9600K, this is no small feat. The i5-9600K is aimed squarely at gamers who are not willing to compromise on performance but don't want to pay more than they need to. [Oct '18 CPUPro]

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Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a TDP of 95W. Essentially, the 8086K is Intel’s current Coffee Lake flagship, the i7-8700K, with a single-core turbo frequency factory overclocked by 300 MHz. Thermals permitting, out of the box, the i7-8086K achieves a single core boost speed of 5.0 GHz – which is a new record for Intel. That said, you would be unlucky if you were unable to achieve a 5.0 GHz single core OC with an 8700K. For everything other than single core, the turbo clock speeds on the 8086K exactly match the 8700K which puts the 8086K firmly into gimmick territory. Directly comparing the 8086K and 8700K shows that for a $100 (24%) price premium you get around a 5% performance improvement which drops to around 2% when both chips are overclocked. If the price gap between the 8086K and the 8700K were to fall to less than 20 USD it may be worth considering the 8086K. [Jun '18 CPUPro]

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Processor Rankings (Price vs Performance) November 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]

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.
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