IntelBX80673I77820X
IntelBX80684I39100F

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

4 Cores, 4 Threads @3.6GHz, Coffee Lake.
Release date: Q2 2019.

Real World Speed
Performance profile from 62,834 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
34,310 User Benchmarks
Best Bench: 86% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 72% Base clock 3.6 GHz, turbo 4 GHz (avg)
Poor: 72% Great: 86%
SPEED RANK: 236th / 1442
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 61%
Destroyer
Effective Speed
Effective CPU Speed
80.1 % +0% 80.1 %
Memory
Avg. Memory Latency
75.5 Pts 88 Pts Lower memory latency.
+17%
1-Core
Avg. Single Core Speed
121 Pts 122 Pts +1%
2-Core
Avg. Dual Core Speed
238 Pts 240 Pts +1%
4-Core
Avg. Quad Core Speed
455 Pts Slightly faster quad-core speed.
+9%
416 Pts
8-Core
Avg. Octa Core Speed
822 Pts Hugely faster octa-core speed.
+94%
423 Pts
Memory
OC Memory Latency
85 Pts 94.6 Pts Lower OC memory latency.
+11%
1-Core
OC Single Core Speed
138 Pts Slightly faster OC single-core speed.
+10%
126 Pts
2-Core
OC Dual Core Speed
272 Pts Slightly faster OC dual-core speed.
+9%
250 Pts
4-Core
OC Quad Core Speed
533 Pts Faster OC quad-core speed.
+12%
476 Pts
8-Core
OC Octa Core Speed
976 Pts Hugely faster OC octa-core speed.
+105%
475 Pts
Market Share
Based on 67,757,757 CPUs tested
Market Share
Market Share (trailing 30 days)
0.04 % 0.4 % Hugely higher market share.
+900%
Value
Value For Money
73.8 % 110 % Much better value.
+49%
User Rating
UBM User Rating
63 % 85 % Much more popular.
+35%
Price
Price (score)
$375 $88 Much cheaper.
+77%
Age
Newest
82 Months 60 Months More recent.
+27%
TDP
Thermal Design Power (TDP)
140 Watts 65 Watts Much more energy efficient.
+54%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+100%
4 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+300%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.6 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Slightly faster turbo frequency.
+7%
4.2 GHz
64-Core
OC Multi Core Speed
1445 Pts Hugely faster OC 64-core speed.
+205%
474 Pts
64-Core
Avg. Multi Core Speed
1263 Pts Hugely faster 64-core speed.
+196%
427 Pts
Series
CPU Architecture
Skylake-X Coffee Lake
Socket
Motherboard Socket
LGA2066 FCLGA1151
Graphics
Integrated Graphics
None None
Launch Date
Launch Date
Q2'17 Q2'19
Cache
Cache
11 MB L3 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0, AVX-512 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
4.30 GHz 4.20 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2017X PCG 2015C (65W)
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 64 GB
Memory Types
Memory Types
DDR4-2666 DDR4-2400
Memory Channels
Max # of Memory Channels
4 2
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Max # of PCI Express Lanes
Max # of PCI Express Lanes
28 16

More specs » More specs »
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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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Intel’s Core i3-9100F is a quad-core 9th generation Coffee Lake desktop processor. It features base / boost clocks of 3.6 / 4.2 GHz, 6 MB of cache, a 65W TDP and it ships with a cooler. Gamers should pair the 9100F with a Z390 motherboard and unlock higher XMP RAM speeds. This will deliver up to a 15% fps boost which is well worth it considering that many Z390 boards are available for around $100 USD (here is one of the builds from our EFps test lab). The 9100F has great single core performance coupled with a strong memory sub system. This enables it to deliver excellent all round performance, easily holding its own against far pricier CPUs for the majority of use cases. The heavily hyped 12 threaded 6 core Ryzen 3600, paired with a 2060S, barely pulls ahead in any of the top five games. [Oct '19 CPUPro]

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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.
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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.

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