IntelBX80673I77820X
IntelBX8071512400

8 Cores, 16 Threads @3.6GHz, Skylake-X.
Release date: Q2 2017.

6 Cores, 12 Threads @2.5GHz, Alder Lake.
Release date: Q1 2022.

Real World Speed
Performance profile from 45,876 user samples
28,524 User Benchmarks
Best Bench: 92% Base clock 3.6 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 3.6 GHz, turbo 3.85 GHz (avg)
Poor: 70% Great: 92%
SPEED RANK: 233rd / 1442
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 81%
Aircraft carrier
17,352 User Benchmarks
Best Bench: 106% Base clock 2.5 GHz, turbo 4 GHz (avg)
Worst Bench: 91% Base clock 2.5 GHz, turbo 4 GHz (avg)
Poor: 91% Great: 106%
SPEED RANK: 84th / 1442
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 101%
UFO
Workstation
Workstation 92%
Nuclear submarine
Effective Speed
Effective CPU Speed
80.1 % 98.2 % Faster effective speed.
+23%
Memory
Avg. Memory Latency
75.5 Pts 80.7 Pts Slightly lower memory latency.
+7%
1-Core
Avg. Single Core Speed
121 Pts 173 Pts Much faster single-core speed.
+43%
2-Core
Avg. Dual Core Speed
238 Pts 331 Pts Much faster dual-core speed.
+39%
4-Core
Avg. Quad Core Speed
455 Pts 621 Pts Much faster quad-core speed.
+36%
8-Core
Avg. Octa Core Speed
822 Pts 973 Pts Faster octa-core speed.
+18%
Memory
OC Memory Latency
85 Pts 90.4 Pts Slightly lower OC memory latency.
+6%
1-Core
OC Single Core Speed
138 Pts 182 Pts Much faster OC single-core speed.
+32%
2-Core
OC Dual Core Speed
272 Pts 353 Pts Faster OC dual-core speed.
+30%
4-Core
OC Quad Core Speed
533 Pts 673 Pts Faster OC quad-core speed.
+26%
8-Core
OC Octa Core Speed
976 Pts 1039 Pts Slightly faster OC octa-core speed.
+6%
Market Share
Based on 67,720,645 CPUs tested
Market Share
Market Share (trailing 30 days)
0.05 % 0.38 % Hugely higher market share.
+660%
Value
Value For Money
73.8 % 116 % Much better value.
+57%
User Rating
UBM User Rating
63 % 92 % Much more popular.
+46%
Price
Price (score)
$375 $152 Much cheaper.
+59%
Age
Newest
81 Months 27 Months Much more recent.
+67%
TDP
Thermal Design Power (TDP)
140 Watts 65 Watts Much more energy efficient.
+54%
Cores
CPU Processing Cores
8 cores Much higher core count.
+33%
6 cores
Threads
CPU Processing Threads
16 threads Much higher thread count.
+33%
12 threads
Lithography
Manufacturing process
14 nm 10 nm Newer manufacturing.
+29%
Base Clock
Base Clock Speed
3.6 GHz Much faster base frequency.
+44%
2.5 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz +2% 4.4 GHz
64-Core
OC Multi Core Speed
1445 Pts Faster OC 64-core speed.
+18%
1221 Pts
64-Core
Avg. Multi Core Speed
1263 Pts Slightly faster 64-core speed.
+7%
1176 Pts
Series
CPU Architecture
Skylake-X Alder Lake
Socket
Motherboard Socket
LGA2066 FCLGA1700
Graphics
Integrated Graphics
None UHD 730
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The I7-7820X is the second of three new Skylake-X HEDT (high end desktop processors) released by Intel as part of their core X series (the others being the flagship 10-core i9-7900X and the 6-core i7-7800X). The 7820X is an 8-core, 16-thread CPU which will amply satisfy all but the heaviest of multi-threaded use cases. The 7820X requires a relatively expensive X299 (Basin Falls) motherboard, which costs upwards of $250. The 7820X is listed at $599 which is about $200 more than AMD's current flagship 8-core, 16 thread Ryzen 7 1800X. In addition to better IPC, the 7820X is higher clocked with base and max boost clocks of 3.6/4.5 GHz respectively, compared to 3.6G/4.0 GHz for the Ryzen 7 1800X. The additional $200 (50%) buys you around 20% more performance in both single and multi core workloads. Intel have also released several Kabylake-X HEDT CPUs: the 4-thread i5-7640X and the 8-thread i7-7740X and will shortly release of even higher spec Skylake-X processors. It's probably wise to hold off purchasing until the eagerly anticipated 16-core, 32-thread Ryzen Threadripper CPUs are launched later this month. [Jul '17 CPUPro]

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I originally wanted an i5-12600 but unfortunately, it was not available so I settled for a 12400. It's really affordable and the performance is great. [Nov '22 arvinjason]

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Processor Rankings (Price vs Performance) April 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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

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.

UserBenchmark of the month

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
  • - 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

 Frequently Asked Questions

 Best User Rated

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Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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