IntelBX80684I58400
IntelBX80684I99900K

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

8 Cores, 16 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2018.

CSGO
Dust 2 1080p Max
233 EFps 298 EFps Better CSGO EFps.
+28%
GTAV
Franklin & Lamar 1080p Max
107 EFps 108 EFps +1%
Overwatch
Temple of Anubis 1080p Max
138 EFps 138 EFps
PUBG
M249 Training 1080p Max
123 EFps 137 EFps Better PUBG EFps.
+11%
Fortnite
UserBenchmark Island 1080p Max
130 EFps 149 EFps Better Fortnite EFps.
+15%
Real World Speed
Performance profile from 624,374 user samples
261,280 User Benchmarks
Best Bench: 90% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 72% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 72% Great: 90%
SPEED RANK: 97th / 1316
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 70%
Battle cruiser
363,094 User Benchmarks
Best Bench: 105% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 86% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 86% Great: 105%
SPEED RANK: 25th / 1316
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed
84.6 % 97.7 % Faster effective speed.
+15%
28 May20|Techpowerup
Intel Core i5-10400F Review - Six ...
MetroEx 3% 9 % FarC5 16%, BFV 12%, SotTR 1%, Rage2 3%, Witcher3 1%, Civ6 17%, ACO 27%, Sekiro 12%, Wolf2 0%
14 Nov19|PCGamer
AMD Ryzen 9 3950X review
14 % Hitm2 17%, FarC5 20%, StrangeB 1%, TWarW2 20%, SotTR 26%, ACO 22%, MetroEx 2%, MESoW 8%, Divis2 12%
30 Oct19|Gamers Nexus
Intel i9-9900KS Review: Overclocki...
25 % Hitm2 40%, TWarW2 21%, F118 20%, GTAV 19%, SotTR 23%
Memory
Avg. Memory Latency
88.3 Pts 92.6 Pts +5%
1-Core
Avg. Single Core Mixed Speed
114 Pts 143 Pts Faster single-core speed.
+25%
2-Core
Avg. Dual Core Mixed Speed
226 Pts 282 Pts Faster dual-core speed.
+25%
4-Core
Avg. Quad Core Mixed Speed
439 Pts 551 Pts Faster quad-core speed.
+26%
8-Core
Avg. Octa Core Mixed Speed
625 Pts 1013 Pts Much faster octa-core speed.
+62%
Memory
OC Memory Latency
94.7 Pts 97.5 Pts +3%
1-Core
OC Single Core Mixed Speed
121 Pts 153 Pts Faster OC single-core speed.
+26%
2-Core
OC Dual Core Mixed Speed
241 Pts 304 Pts Faster OC dual-core speed.
+26%
4-Core
OC Quad Core Mixed Speed
473 Pts 606 Pts Faster OC quad-core speed.
+28%
8-Core
OC Octa Core Mixed Speed
687 Pts 1165 Pts Much faster OC octa-core speed.
+70%
Market Share
Based on 44,909,554 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.71 % 1.33 % Hugely higher market share.
+87%
Value
Value For Money
96.6 % Slightly better value.
+6%
90.7 %
User Rating
UBM User Rating
61 % 82 % Much more popular.
+34%
Price
Price (score)
$172 Much cheaper.
+53%
$364
Age
Newest
45 Months 33 Months More recent.
+27%
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+32%
95 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
6 threads 16 threads Hugely higher thread count.
+167%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.8 GHz 3.6 GHz Faster base frequency.
+29%
Turbo Clock
Turbo Clock Speed
4 GHz 5 GHz Faster turbo frequency.
+25%
64-Core
OC Multi Core Mixed Speed
693 Pts 1584 Pts Hugely faster OC 64-core speed.
+129%
64-Core
Avg. Multi Core Mixed Speed
629 Pts 1446 Pts Hugely faster 64-core speed.
+130%
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Launch Date
Launch Date
Q4'17 Q4'18
Cache
Cache
9 MB 16 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Recommended Price
Recommended Customer Price
N/A $488.00 - $499.00
Max Turbo Frequency
Max Turbo Frequency
4.00 GHz 5.00 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.20 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
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 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

The Intel i9-9900K is an 8 core, 16 thread, unlocked 9th generation Coffee Lake processor. It has a base / boost clocks of 3.6 / 4.7 GHz and a single-core boost of 5.0 GHz (the highest frequency achieved yet from this class of Intel CPU). It features 16 MB of cache, a 95W TDP and Intel UHD 630 graphics. The 9900K is compatible with the new Z390 chipset, and subject to a BIOS update, is also compatible with the older Z370 chipset. Aimed at users who do not wish to compromise, the i9-9900K offers the best gaming and desktop experience available at any price. Heavy workstation users should consider the Ryzen 9 3900X which is similarly priced. Comparing the overclocked 3900X shows that it is just 10% worse for gaming and desktop (sub octa-core) but around 40% better for 64-core computations. Gamers should consider the 9700K which offers identical overclocked gaming performance at a $100 USD discount. [Oct '18 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 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.
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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HDDRAMUSB
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