Compare Processors

Intel Core i9-9900K vs Core i7-7820X

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Brand
Intel
Brand
Intel
Model
BX80684I99900K
Model
BX80673I77820X
Release Date
📅 October 2018
Release Date
📅 June 2017
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★★
(123 reviews)
User reviews
★★★★☆
(21 reviews)
CPU Single-Core Performance (Charts)
95th / 529
CPU Single-Core Performance (Charts)
110th / 529
Single-Core Effective Value
197th / 238
Single-Core Effective Value
189th / 238
Workstation Performance (Charts)
99th / 240
Workstation Performance (Charts)
97th / 240
Workstation Effective Value
142nd / 234
Workstation Effective Value
125th / 234
TDP
🔌 95 Watts
TDP
🔌 140 Watts
Price history
View Details ►
Price history
View Details ►
Supported PC parts
Supported PC parts
Series
Core i9 9th Gen
Series
Core i7 X-Series
Core Name
Coffee Lake
Core Name
Skylake X
Socket
LGA1151
Socket
LGA2066
Integrated Graphics
Intel UHD Graphics 630
Integrated Graphics
None
CPU Cores
8
CPU Cores
8
CPU Threads
16
CPU Threads
16
CPU Clock Rate
3600 MHz
CPU Clock Rate
3600 MHz
CPU Turbo Clock Rate
5000 MHz
CPU Turbo Clock Rate
4500 MHz
CPU Cooler included
No
CPU Cooler included
No
Manufacturing Process
14 nm
Manufacturing Process
14 nm
Maximum Supported Memory
128 GB
Maximum Supported Memory
128 GB
Cache L3
16 MB
Cache L3
11 MB

What are the differences between Intel Core i9-9900K and Core i7-7820X? Analyze head-to-head all specifications and features to find out the better cpu.

Comparison and key differences summary

Reasons to pick the Intel Core i9-9900K:

  • Slightly better average single-core performance, around +4%.
  • Newer Product, it was released around 16 months later.
  • Around 32% lower thermal design power.
  • +5 MB L3 Cache.
  • Integrated graphics in the CPU (Intel UHD Graphics 630).

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Reasons to pick the Intel Core i7-7820X:

  • 18% cheaper, you can save $84.00.
  • Slightly better single-core effective value.
  • Slightly better average multithreading performance, around +3%.
  • Moderately better workstation effective value.

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