IntelBX80684I78086K
IntelBX80673I97900X

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

10 Cores, 20 Threads @3.8GHz, Skylake-X.
Release date: Q2 2017.

Real World Speed
Performance profile from 57,518 user samples
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: 135th / 1443
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
19,432 User Benchmarks
Best Bench: 92% Base clock 3.3 GHz, turbo 4.95 GHz (avg)
Worst Bench: 72% Base clock 3.3 GHz, turbo 0.7 GHz (avg)
Poor: 72% Great: 92%
SPEED RANK: 209th / 1443
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
Effective Speed
Effective CPU Speed
90.8 % Faster effective speed.
+11%
81.9 %
Memory
Avg. Memory Latency
91.6 Pts Lower memory latency.
+20%
76.1 Pts
1-Core
Avg. Single Core Speed
132 Pts Slightly faster single-core speed.
+7%
123 Pts
2-Core
Avg. Dual Core Speed
256 Pts Slightly faster dual-core speed.
+5%
243 Pts
4-Core
Avg. Quad Core Speed
484 Pts +3% 470 Pts
8-Core
Avg. Octa Core Speed
800 Pts 898 Pts Faster octa-core speed.
+12%
Memory
OC Memory Latency
97 Pts Lower OC memory latency.
+11%
87.6 Pts
1-Core
OC Single Core Speed
153 Pts Faster OC single-core speed.
+11%
138 Pts
2-Core
OC Dual Core Speed
304 Pts Faster OC dual-core speed.
+10%
276 Pts
4-Core
OC Quad Core Speed
580 Pts Slightly faster OC quad-core speed.
+6%
548 Pts
8-Core
OC Octa Core Speed
948 Pts 1069 Pts Faster OC octa-core speed.
+13%
Market Share
Based on 67,836,986 CPUs tested
Market Share
Market Share (trailing 30 days)
0.07 % Much higher market share.
+75%
0.04 %
Value
Value For Money
82.3 % Better value.
+10%
74.4 %
User Rating
UBM User Rating
55 % 55 %
Price
Price (score)
$399 $393 +1%
Age
Newest
70+ Months More recent.
+15%
82 Months
64-Core
OC Multi Core Speed
1194 Pts 1853 Pts Much faster OC 64-core speed.
+55%
64-Core
Avg. Multi Core Speed
1008 Pts 1589 Pts Much faster 64-core speed.
+58%
Launch Date
Launch Date
Q2'18 Q2'17
Cache
Cache
12 MB SmartCache 13.75 MB L3
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX2, AVX-512
Recommended Price
Recommended Customer Price
N/A $989.00 - $999.00
Max Turbo Frequency
Max Turbo Frequency
5.00 GHz 4.30 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2017X
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Channels
Max # of Memory Channels
2 4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 44

More specs » More specs »
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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]

MORE DETAILS

Intel’s core i9-7900X, from the Skylake-X series, is Intel’s latest 10-core, 20-thread flagship processor. It's the first to bear the i9 moniker and utilize the new X299 (Basin Falls) chipset/motherboard. The 7900X is the fastest CPU on the market today, however, imminent competition from AMD’s 16-core, 32-thread Ryzen Threadripper CPUs and the forthcoming release of more Intel Core X series mean that its reign will be a short one. The i9-7900X supersedes the 10-core Broadwell-E core i7-6950X that held the crown for little over a year. Both are extremely powerful and pricey high end desktop processors (HEDTs) which excel in multi-threaded tasks such as media encoding. However, despite the same power draw (TDP 140W), the newer i9-7900X betters the i7-6950X in terms of peak overclocked performance by 10% mostly thanks to increased clock speeds from 3.0GHz/4.0GHz to 3.3GHz/4.3GHz for base/turbo. It also betters the i7-6950X on price by around 28%. This all translates to the i9-7900X offering around 20% more value for money, even despite its eye-watering $999 price tag. The more accessible pricing (albeit not accessible for the majority) and hurried release of the i9-7900k to market is widely perceived as a reaction to AMD’s Ryzen Threadripper CPUs, rumoured for release towards the end of July 2017. So if you want to own the fastest consumer CPU in the world, it would be wise to wait for the dust to settle. [Jul '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 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]

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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.
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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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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
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  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
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 Frequently Asked Questions

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