IntelBX80684I78700K
IntelBX80684I39350KF

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

4 Cores, 4 Threads @4.0GHz, Coffee Lake.
Release date: Q1 2019.

CSGO
Dust 2 1080p Max
284 EFps Slightly Better CSGO EFps.
+5%
270 EFps
GTAV
Franklin & Lamar 1080p Max
106 EFps 108 EFps +2%
Overwatch
Temple of Anubis 1080p Max
139 EFps +4% 134 EFps
PUBG
M249 Training 1080p Max
139 EFps Better PUBG EFps.
+11%
125 EFps
Fortnite
UserBenchmark Island 1080p Max
139 EFps 145 EFps +4%
Real World Speed
Performance profile from 714,819 user samples
713,475 User Benchmarks
Best Bench: 100% Base clock 3.7 GHz, turbo 5.2 GHz (avg)
Worst Bench: 80% Base clock 3.7 GHz, turbo 0.95 GHz (avg)
Poor: 80% Great: 100%
SPEED RANK: 77th / 1355
Gaming
Gaming 90%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
1,344 User Benchmarks
Best Bench: 97% Base clock 4 GHz, turbo 5.3 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 4.35 GHz (avg)
Poor: 70% Great: 97%
SPEED RANK: 98th / 1355
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
90.2 % +5% 86.3 %
10 Mar21|HardwareLUXX
Processor non grata: Rocket Lake-S...
38 % BFV 27%, SotTR 60%, MetroEx 4%, Divis2 60%
Memory
Avg. Memory Latency
91.6 Pts +3% 89.2 Pts
1-Core
Avg. Single Core Mixed Speed
131 Pts 131 Pts
2-Core
Avg. Dual Core Mixed Speed
254 Pts 259 Pts +2%
4-Core
Avg. Quad Core Mixed Speed
478 Pts 481 Pts +1%
8-Core
Avg. Octa Core Mixed Speed
797 Pts Much faster octa-core speed.
+63%
488 Pts
Memory
OC Memory Latency
97 Pts +1% 96.3 Pts
1-Core
OC Single Core Mixed Speed
150 Pts +1% 148 Pts
2-Core
OC Dual Core Mixed Speed
292 Pts 296 Pts +1%
4-Core
OC Quad Core Mixed Speed
563 Pts 567 Pts +1%
8-Core
OC Octa Core Mixed Speed
934 Pts Much faster OC octa-core speed.
+64%
569 Pts
Market Share
Based on 53,521,701 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.22 % Insanely higher market share.
+12,100%
0.01 %
Value
Value For Money
88.3 % 101 % Better value.
+15%
User Rating
UBM User Rating
82 % Much more popular.
+32%
62 %
Price
Price (score)
$300 $156 Much cheaper.
+48%
Age
Newest
56 Months 39 Months Much more recent.
+30%
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+200%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz 4 GHz Slightly faster base frequency.
+8%
Turbo Clock
Turbo Clock Speed
4.7 GHz +2% 4.6 GHz
64-Core
OC Multi Core Mixed Speed
1177 Pts Hugely faster OC 64-core speed.
+105%
574 Pts
64-Core
Avg. Multi Core Mixed Speed
1003 Pts Hugely faster 64-core speed.
+104%
492 Pts
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 None
Launch Date
Launch Date
Q4'17 Q1'19
Cache
Cache
12 MB 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 4.60 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2666 DDR4-2400
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

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The i3-9350KF is a 9th generation quad core Coffee Lake CPU which is designed to be used with a discrete graphics card. It has base/boost turbo frequencies of 4.0/4.6 GHz. The 9350KF generates less heat than its higher core "K" counterparts so getting a decent overclock without expensive cooling is relatively straightforward. Overclocking the 9350KF to 5 GHz with a $20 USD Gammaxx 400 cooler puts the 9350KF at similar single, dual and quad core performance levels as the 9600K, 9700K and 9900K SKUs. Consequently there is not much difference in fps between the 9350KF and any other CPU regardless of core count. At $180 USD the 9350KF sits amongst the top value gaming and desktop CPUs currently available. Comparing the 4 thread 9350KF to AMD’s twice as expensive 16 thread Ryzen 3700X shows that the 9350KF wins hands down in all five of today’s most popular games. The only other CPUs worth considering for unbeatable gaming performance are the 9600K or 9600KF which have 50% more, equally fast cores, for less than 10% more money.  [Nov '19 CPUPro]

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Processor Rankings (Price vs Performance) June 2022 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.
  • - 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.

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CPUGPUSSD
Intel Core i5-12600K $280Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-12400F $170Nvidia RTX 3050 $250Samsung 850 Evo 120GB $109
Intel Core i7-12700K $380Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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