IntelBX80684I99900K
IntelBX80673I97900X

8 Cores, 16 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2018.

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

Real World Speed
Performance profile from 68,381 user samples
60,333 User Benchmarks
Best Bench: 131% Base clock 2 GHz, turbo 2 GHz (avg)
Worst Bench: 98% Base clock 3.6 GHz, turbo 1.85 GHz (avg)
Poor: 98% Great: 131%
SPEED RANK: 7th / 1159
Gaming
Gaming 121%
UFO
Desktop
Desktop 117%
UFO
Workstation
Workstation 124%
UFO
8,048 User Benchmarks
Best Bench: 125% Base clock 3.3 GHz, turbo 4.9 GHz (avg)
Worst Bench: 100% Base clock 3.3 GHz, turbo 4.2 GHz (avg)
Poor: 100% Great: 125%
SPEED RANK: 17th / 1159
Gaming
Gaming 111%
UFO
Desktop
Desktop 107%
UFO
Workstation
Workstation 130%
UFO
Effective Speed
Effective CPU Speed
121 % Slightly faster effective speed.
+9%
111 %
SC Mixed
Avg. Single Core Mixed Speed
145 Pts Slightly faster single-core speed.
+13%
128 Pts
QC Mixed
Avg. Quad Core Mixed Speed
567 Pts Slightly faster quad-core speed.
+13%
501 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1507 Pts 1662 Pts Slightly faster multi-core speed.
+10%
SC Mixed
OC Single Core Mixed Speed
156 Pts Slightly faster OC single-core speed.
+8%
145 Pts
QC Mixed
OC Quad Core Mixed Speed
620 Pts Slightly faster OC quad-core speed.
+8%
576 Pts
MC Mixed
OC Multi Core Mixed Speed
1660 Pts 1886 Pts Slightly faster OC multi-core speed.
+14%
Market Share
Based on 17,684,631 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.77 % Insanely higher market share.
+2,112%
0.08 %
Value
Value For Money
99.7 % Much better value.
+37%
72.7 %
User Rating
UBM User Rating
72 % Slightly more popular.
+14%
63 %
Price
Price (score)
$485 Much cheaper.
+46%
$899
Age
Newest
7 Months Much more recent.
+70%
23 Months
TDP
Thermal Design Power (TDP)
95 Watts Much more energy efficient.
+32%
140 Watts
Cores
CPU Processing Cores
8 cores 10 cores Higher core count.
+25%
Threads
CPU Processing Threads
16 threads 20 threads Higher thread count.
+25%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.8 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
5 GHz Faster turbo frequency.
+16%
4.3 GHz
SC Int
Single Core Integer Speed
153 Pts Slightly faster single-core int speed.
+9%
140 Pts
SC Float
Single Core Floating Point Speed
162 Pts Slightly faster single-core fp speed.
+9%
149 Pts
QC Int
Quad Core Integer Speed
602 Pts Slightly faster quad-core int speed.
+8%
560 Pts
QC Float
Quad Core Floating Point Speed
640 Pts Slightly faster quad-core fp speed.
+7%
596 Pts
MC Int
Multi Core Integer Speed
1510 Pts 1725 Pts Slightly faster multi-core int speed.
+14%
MC Float
Multi Core Floating Point Speed
1772 Pts 2003 Pts Slightly faster multi-core fp speed.
+13%
Series
CPU Architecture
Coffee Lake Skylake-X
Socket
Motherboard Socket
FCLGA1151 LGA2066
Graphics
Integrated Graphics
UHD 630 None
Launch Date
Launch Date
Q4'18 Q2'17
Cache
Cache
16 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
$488.00 - $499.00 $989.00 - $999.00
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’s new consumer flagship CPU for 2018 is the i9-9900K, an 8 core, 16 thread, unlocked 9th generation Intel core desktop processor. It is based on the third round of optimization of Intel’s 14nm Coffee Lake architecture, which in this iteration, yields more cores. This is a retort to AMD’s 8 core 16 thread Ryzen 7 processors that launched in Q2 2018, to fill the gap before Intel releases it’s 10nm Cannon Lake based CPUs in, perhaps, late 2019. In direct proportion to the increased number of cores, average multi-core benchmarks are around 33% higher on the 8 core 9900K than the previous generation 6 core 8700K. The i9-9900K has a base frequency of 3.6 GHz, ramping up to an all-core turbo boost frequency of 4.7 GHz and a single-core turbo boost speed of 5.0 GHz (the highest frequency achieved yet from this class of Intel CPU). It features 16 MB of cache, a 95W TDP and Intel UHD graphics 630. The 9900K is compatible with the new Z390 chipset from Intel, and subject to a BIOS update, is also compatible with the Z370 chipset. This premium CPU is expected to retail at $500, which compares to around $300 for the 8 core, 16 thread Ryzen 7 2700X. Although the 9900K has around a 16% effective speed advantage over the 2700X, the Ryzen 2700X offers better value for money for most users. [Oct '18 CPUPro]

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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) June 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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 freeware 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 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.
  • - 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.
  • - Share your opinion by voting.

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CPUGPUSSD
Intel Core i7-8700K $365Nvidia GTX 1070 $390Samsung 850 Evo 250GB $87
AMD Ryzen 5 2600 $139Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $639SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $12
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