IntelBX80684I78700K
IntelBX80684I58400

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

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

CSGO
Dust 2 1080p Max
284 EFps Better CSGO EFps.
+22%
233 EFps
GTAV
Franklin & Lamar 1080p Max
106 EFps 107 EFps +1%
Overwatch
Temple of Anubis 1080p Max
139 EFps +1% 138 EFps
PUBG
M249 Training 1080p Max
139 EFps Better PUBG EFps.
+13%
123 EFps
Fortnite
UserBenchmark Island 1080p Max
139 EFps Slightly Better Fortnite EFps.
+7%
130 EFps
Real World Speed
Performance profile from 904,497 user samples
630,213 User Benchmarks
Best Bench: 103% Base clock 2.6 GHz
Worst Bench: 81% Base clock 3.7 GHz, turbo 4.3 GHz (avg)
Poor: 81% Great: 103%
SPEED RANK: 50th / 1316
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 84%
Aircraft carrier
274,284 User Benchmarks
Best Bench: 90% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 72% Base clock 2.8 GHz, turbo 1.25 GHz (avg)
Poor: 72% Great: 90%
SPEED RANK: 97th / 1316
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 69%
Battle cruiser
Effective Speed
Effective CPU Speed
92.5 % Slightly faster effective speed.
+9%
84.5 %
28 May20|Techpowerup
Intel Core i5-10400F Review - Six ...
6 % FarC5 12%, BFV 9%, SotTR 0%, Rage2 4%, Witcher3 1%, Civ6 9%, ACO 20%, Sekiro 7% MetroEx 1%, Wolf2 0%
14 Nov19|PCGamer
AMD Ryzen 9 3950X review
10 % Hitm2 11%, FarC5 12%, StrangeB 0%, TWarW2 13%, SotTR 12%, ACO 19%, MetroEx 1%, MESoW 5%, Divis2 12%
30 Oct19|Gamers Nexus
Intel i9-9900KS Review: Overclocki...
12 % Hitm2 22%, TWarW2 12%, F118 7%, GTAV 4%, SotTR 15%
Memory
Avg. Memory Latency
91.9 Pts +5% 87.8 Pts
1-Core
Avg. Single Core Mixed Speed
134 Pts Faster single-core speed.
+18%
114 Pts
2-Core
Avg. Dual Core Mixed Speed
262 Pts Faster dual-core speed.
+15%
227 Pts
4-Core
Avg. Quad Core Mixed Speed
501 Pts Faster quad-core speed.
+14%
440 Pts
8-Core
Avg. Octa Core Mixed Speed
811 Pts Faster octa-core speed.
+30%
624 Pts
Memory
OC Memory Latency
97.1 Pts +3% 94.2 Pts
1-Core
OC Single Core Mixed Speed
152 Pts Faster OC single-core speed.
+25%
122 Pts
2-Core
OC Dual Core Mixed Speed
301 Pts Faster OC dual-core speed.
+24%
242 Pts
4-Core
OC Quad Core Mixed Speed
591 Pts Faster OC quad-core speed.
+25%
473 Pts
8-Core
OC Octa Core Mixed Speed
945 Pts Much faster OC octa-core speed.
+37%
688 Pts
Market Share
Based on 46,419,403 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.22 % Hugely higher market share.
+88%
0.65 %
Value
Value For Money
89 % 96.4 % Slightly better value.
+8%
User Rating
UBM User Rating
80 % Much more popular.
+31%
61 %
Price
Price (score)
$320 $172 Much cheaper.
+46%
Age
Newest
47 Months 47 Months
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+100%
6 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz Much faster base frequency.
+32%
2.8 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Faster turbo frequency.
+17%
4 GHz
64-Core
OC Multi Core Mixed Speed
1165 Pts Much faster OC 64-core speed.
+68%
692 Pts
64-Core
Avg. Multi Core Mixed Speed
1009 Pts Much faster 64-core speed.
+60%
632 Pts
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Cache
Cache
12 MB 9 MB
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 4.00 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015C (65W)
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.05 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

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]

MORE DETAILS

The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) September 2021 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 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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $28Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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