8 Cores, 16 Threads @3.80 GHz, Skylake.
Release date ≈ Q4 2018.

6 Cores, 12 Threads @3.50 GHz, Skylake.
Release date ≈ Q2 2017.

Real World Speed
Performance profile from 8,167 user samples
167 User Benchmarks
Best Bench: 122% Base clock 3.8 GHz, turbo 4.35 GHz (avg)
Worst Bench: 97% Base clock 3.8 GHz, turbo 1.2 GHz (avg)
Poor: 97% Great: 122%
SPEED RANK: 20th / 1147
Gaming 109%
Desktop 105%
Workstation 113%
8,000 User Benchmarks
Best Bench: 113% Base clock 3.5 GHz, turbo 4.85 GHz (avg)
Worst Bench: 83% Base clock 3.5 GHz, turbo 2.2 GHz (avg)
Poor: 83% Great: 113%
SPEED RANK: 29th / 1147
Gaming 97%
Nuclear submarine
Desktop 94%
Nuclear submarine
Workstation 86%
Aircraft carrier
Effective Speed
Effective CPU Speed
109 % Slightly faster effective speed.
97.3 %
SC Mixed
Avg. Single Core Mixed Speed
131 Pts Slightly faster single-core speed.
123 Pts
QC Mixed
Avg. Quad Core Mixed Speed
514 Pts Slightly faster quad-core speed.
474 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1373 Pts Much faster multi-core speed.
981 Pts
SC Mixed
OC Single Core Mixed Speed
146 Pts +3% 142 Pts
QC Mixed
OC Quad Core Mixed Speed
579 Pts +4% 557 Pts
MC Mixed
OC Multi Core Mixed Speed
1544 Pts Much faster OC multi-core speed.
1127 Pts
Market Share
Based on 15,752,651 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 0.08 % Hugely higher market share.
User Rating
UBM User Rating
50 % 60 % More popular.
3+ Months Hugely more recent.
20+ Months
SC Int
Single Core Integer Speed
142 Pts +3% 138 Pts
SC Float
Single Core Floating Point Speed
151 Pts +3% 146 Pts
QC Int
Quad Core Integer Speed
563 Pts +4% 543 Pts
QC Float
Quad Core Floating Point Speed
600 Pts +5% 574 Pts
MC Int
Multi Core Integer Speed
1410 Pts Much faster multi-core int speed.
1028 Pts
MC Float
Multi Core Floating Point Speed
1652 Pts Much faster multi-core fp speed.
1194 Pts
Launch Date
Launch Date
Q4'18 Q2'17
16.5 MB SmartCache 8.25 MB L3
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 SSE4.1/4.2, AVX 2.0, AVX-512
Recommended Price
Recommended Customer Price
N/A $383.00 - $389.00
Memory Types
Memory Types
DDR4-2666 DDR4-2400
Max # of PCI Express Lanes
Max # of PCI Express Lanes
44 28

More specs » More specs »

Core i7-9800X is a 64-bit octa-core high-performance x86 desktop microprocessor from Intel (late 2018). A Skylake micro-architecture chip, is fabricated on using Intel's 14 nm process. The i7-9800X operates at 3.8 GHz with a TDP of 165 W and a Turbo Boost frequency of up to 4.4 GHz and am Turbo Max Boost frequency of 4.5 GHz. The processor supports up to 128 GiB of quad-channel DDR4-2666 memory and supports 44 PCIe lanes. A strong contender to the i9-9900k, yet slightly slower, except utilizing the x299 platform allowing for more ram and PCIe lanes (44 vs 16) [Jan '19 deweycd]


Completely outclassed by the 8700k which is cheaper and faster. RIP Skylake-X [May '18 koopahermit]


Processor Rankings (Price vs Performance) March 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]


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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

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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Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $88
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Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $716SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $118SanDisk Ultra Fit 32GB $12
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