IntelBX80673I97900X
IntelBX80684I99900K

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

VS
About

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

Real World Speed
Performance profile from 132,428 user samples
9,781 User Benchmarks
Best Bench: 102% Base clock 3.3 GHz, turbo 4.85 GHz (avg)
Worst Bench: 77% Base clock 3.3 GHz, turbo 3.3 GHz (avg)
Poor: 77% Great: 102%
SPEED RANK: 34th / 1206
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 100%
Nuclear submarine
122,647 User Benchmarks
Best Bench: 108% Base clock 3.6 GHz, turbo 5.15 GHz (avg)
Worst Bench: 85% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 85% Great: 108%
SPEED RANK: 2nd / 1206
Gaming
Gaming 100%
UFO
Desktop
Desktop 100%
UFO
Workstation
Workstation 101%
UFO
Effective Speed
Effective CPU Speed
88.5 % 100 % Slightly faster effective speed.
+13%
1-Core
Avg. Single Core Mixed Speed
127 Pts 145 Pts Slightly faster single-core speed.
+14%
2-Core
Avg. Dual Core Mixed Speed
254 Pts 287 Pts Slightly faster dual-core speed.
+13%
4-Core
Avg. Quad Core Mixed Speed
501 Pts 565 Pts Slightly faster quad-core speed.
+13%
8-Core
Avg. Octa Core Mixed Speed
973 Pts 1057 Pts Slightly faster octa-core speed.
+9%
1-Core
OC Single Core Mixed Speed
145 Pts 156 Pts Slightly faster OC single-core speed.
+8%
2-Core
OC Dual Core Mixed Speed
291 Pts 311 Pts Slightly faster OC dual-core speed.
+7%
4-Core
OC Quad Core Mixed Speed
579 Pts 617 Pts Slightly faster OC quad-core speed.
+7%
8-Core
OC Octa Core Mixed Speed
1128 Pts 1206 Pts Slightly faster OC octa-core speed.
+7%
Market Share
Based on 23,839,268 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 1.55 % Insanely higher market share.
+2,483%
Value
Value For Money
63.1 % 86.9 % Much better value.
+38%
User Rating
UBM User Rating
65 % 161 % Hugely more popular.
+148%
Price
Price (score)
$950 $465 Much cheaper.
+51%
Age
Newest
30 Months 15 Months Much more recent.
+50%
TDP
Thermal Design Power (TDP)
140 Watts 95 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
10 cores Higher core count.
+25%
8 cores
Threads
CPU Processing Threads
20 threads Higher thread count.
+25%
16 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.8 GHz Slightly faster base frequency.
+6%
3.6 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz 5 GHz Faster turbo frequency.
+16%
64-Core
OC Multi Core Mixed Speed
1882 Pts Slightly faster OC 64-core speed.
+13%
1668 Pts
64-Core
Avg. Multi Core Mixed Speed
1641 Pts Slightly faster 64-core speed.
+9%
1505 Pts
Series
CPU Architecture
Skylake-X Coffee Lake
Socket
Motherboard Socket
LGA2066 FCLGA1151
Graphics
Integrated Graphics
None UHD 630
Launch Date
Launch Date
Q2'17 Q4'18
Cache
Cache
13.75 MB L3 16 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2, AVX-512 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Recommended Price
Recommended Customer Price
$989.00 - $999.00 $488.00 - $499.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2017X PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 64 GB
Memory Channels
Max # of Memory Channels
4 2
Max # of PCI Express Lanes
Max # of PCI Express Lanes
44 16

More specs » More specs »
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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

The Intel i9-9900K is an 8 core, 16 thread, unlocked 9th generation Coffee Lake processor. It has a base / boost clocks of 3.6 / 4.7 GHz and a single-core boost 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 630 graphics. The 9900K is compatible with the new Z390 chipset, and subject to a BIOS update, is also compatible with the older Z370 chipset. Aimed at users who do not wish to compromise, the i9-9900K offers the best gaming and desktop experience available at any price. Heavy workstation users should consider the Ryzen 9 3900X which is similarly priced. Comparing the overclocked 3900X shows that it is just 10% worse for gaming and desktop (sub octa-core) but around 40% better for 64-core computations. Gamers should consider the 9700K which offers identical overclocked gaming performance at a $100 USD discount. [Oct '18 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) January 2020 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 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

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Explore your best upgrade options with a virtual PC build.
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  • - Share your opinion by voting.

 Frequently Asked Questions

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