IntelBX80673I79800X
IntelBX80673I77820X

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

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

Real World Speed
Performance profile from 22,144 user samples
1,684 User Benchmarks
Best Bench: 97% Base clock 3.8 GHz, turbo 4.8 GHz (avg)
Worst Bench: 76% Base clock 3.8 GHz, turbo 0.4 GHz (avg)
Poor: 76% Great: 97%
SPEED RANK: 73rd / 1258
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 86%
Aircraft carrier
20,460 User Benchmarks
Best Bench: 95% Base clock 3.6 GHz, turbo 4.8 GHz (avg)
Worst Bench: 73% Base clock 3.6 GHz, turbo 1.2 GHz (avg)
Poor: 73% Great: 95%
SPEED RANK: 96th / 1258
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 85%
Aircraft carrier
Effective Speed
Effective CPU Speed
85.4 % +2% 83.6 %
Memory
Avg. Memory Latency
79.7 Pts +2% 77.8 Pts
1-Core
Avg. Single Core Mixed Speed
127 Pts +2% 124 Pts
2-Core
Avg. Dual Core Mixed Speed
252 Pts +2% 246 Pts
4-Core
Avg. Quad Core Mixed Speed
488 Pts +2% 479 Pts
8-Core
Avg. Octa Core Mixed Speed
911 Pts +2% 890 Pts
Memory
OC Memory Latency
90.7 Pts +2% 88.9 Pts
1-Core
OC Single Core Mixed Speed
144 Pts +1% 143 Pts
2-Core
OC Dual Core Mixed Speed
284 Pts 285 Pts +0%
4-Core
OC Quad Core Mixed Speed
575 Pts +2% 566 Pts
8-Core
OC Octa Core Mixed Speed
1110 Pts +3% 1080 Pts
Market Share
Based on 31,657,242 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 0.06 % Hugely higher market share.
+500%
Value
Value For Money
79.3 % Better value.
+16%
68.5 %
User Rating
UBM User Rating
53 % 93 % Much more popular.
+75%
Price
Price (score)
$363 Much cheaper.
+37%
$574
Age
Newest
20+ Months Much more recent.
+46%
37 Months
64-Core
OC Multi Core Mixed Speed
1513 Pts +2% 1483 Pts
64-Core
Avg. Multi Core Mixed Speed
1314 Pts +2% 1287 Pts
Launch Date
Launch Date
Q4'18 Q2'17
Cache
Cache
16.5 MB SmartCache 11 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 $589.00 - $599.00
Max Turbo Frequency
Max Turbo Frequency
4.40 GHz 4.30 GHz
Max # of PCI Express Lanes
Max # of PCI Express Lanes
44 28

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really strange because have 8 core  [Dec '19 Viper207]

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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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Processor Rankings (Price vs Performance) August 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.
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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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.
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  • - 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.

 Frequently Asked Questions

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