IntelBX80684I58400
AMD100-100000071BOX

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

VS
About

8 Cores, 16 Threads @3.6GHz, Zen2.
Release date: Q3 2019.

Real World Speed
Performance profile from 160,713 user samples
115,832 User Benchmarks
Best Bench: 84% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 66% Base clock 2.8 GHz, turbo 2.1 GHz (avg)
Poor: 66% Great: 84%
SPEED RANK: 51st / 1184
Gaming
Gaming 79%
Battleship
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 56%
Gunboat
44,881 User Benchmarks
Best Bench: 98% Base clock 4.4 GHz, turbo 4.4 GHz (avg)
Worst Bench: 85% Base clock 0.8 GHz, turbo 0.8 GHz (avg)
Poor: 85% Great: 98%
SPEED RANK: 11th / 1184
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 94%
Nuclear submarine
Effective Speed
Effective CPU Speed
78.8 % 93.7 % Faster effective speed.
+19%
1-Core
Avg. Single Core Mixed Speed
116 Pts 136 Pts Faster single-core speed.
+17%
2-Core
Avg. Dual Core Mixed Speed
230 Pts 269 Pts Faster dual-core speed.
+17%
4-Core
Avg. Quad Core Mixed Speed
449 Pts 527 Pts Faster quad-core speed.
+17%
8-Core
Avg. Octa Core Mixed Speed
638 Pts 959 Pts Much faster octa-core speed.
+50%
64-Core
Avg. Multi Core Mixed Speed
647 Pts 1429 Pts Hugely faster 64-core speed.
+121%
1-Core
OC Single Core Mixed Speed
122 Pts 141 Pts Faster OC single-core speed.
+16%
2-Core
OC Dual Core Mixed Speed
242 Pts 280 Pts Faster OC dual-core speed.
+16%
4-Core
OC Quad Core Mixed Speed
477 Pts 551 Pts Faster OC quad-core speed.
+16%
8-Core
OC Octa Core Mixed Speed
694 Pts 1068 Pts Much faster OC octa-core speed.
+54%
64-Core
OC Multi Core Mixed Speed
697 Pts 1506 Pts Hugely faster OC 64-core speed.
+116%
Market Share
Based on 21,154,248 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.01 % 2.08 % Hugely higher market share.
+106%
Value
Value For Money
88.4 % 91.4 % +3%
User Rating
UBM User Rating
68 % 128 % Hugely more popular.
+88%
Price
Price (score)
$183 Much cheaper.
+40%
$305
Age
Newest
24 Months 3 Months Hugely more recent.
+88%
TDP
Thermal Design Power (TDP)
65 Watts 65 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 7 nm Much newer manufacturing.
+50%
Base Clock
Base Clock Speed
2.8 GHz 3.6 GHz Faster base frequency.
+29%
Turbo Clock
Turbo Clock Speed
4 GHz 4.4 GHz Slightly faster turbo frequency.
+10%
Series
CPU Architecture
Coffee Lake Zen2
Socket
Motherboard Socket
FCLGA1151 AM4
Graphics
Integrated Graphics
UHD 630 None
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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 8-core, 16-thread Ryzen 7 3700X hails from the middle of AMD’s latest range of 7nm silicon Zen 2 CPUs. The new processors are launched alongside the new X570 chipset, whilst still being backward compatible with 300 and 400 series motherboards. They are also PCIe 4.0 enabled, allowing double the data transfer speeds compared to PCIe 3.0. The $329 USD 3700X has a boost clock of 4.4 GHz, 32 MB of L3 cache, supports 3200 MHz DDR4 memory and has a power draw of just 65W TDP. Out of the box, the 3700X, 3600X and 3600 achieve similar quad core speeds but the 16 threaded 3700X is 30% faster for multi-core computations than the 12 threaded 3600X. Comparing the 3700X to Intel’s i7-9700K shows that, when overclocked, the 3700X is 26% faster for 64-core computations but 13% slower for gaming and desktop (sub eight core performance). Additionally, the 3700X'x memory controller, although significantly improved over previous Ryzen iterations, still has limited bandwidth and high latency which can also impact gaming. [Jul '19 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660 $210Samsung 850 Evo 250GB $57
Intel Core i5-9600K $240Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $107
Intel Core i7-9700K $350Nvidia RTX 2060 $320Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 64GB $88
Seagate Barracuda 3TB (2016) $78G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $83SanDisk Ultra Fit 32GB $14
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