AMD
IntelBX80684I58400
  

Release date ≈ Q4 2017.

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

Real World Speed
Performance profile from 28,689 user samples
1,477 User Benchmarks
Best Bench: 71% Base clock 2 GHz, turbo 3.15 GHz (avg)
Worst Bench: 32% Base clock 2 GHz, turbo 0.4 GHz (avg)
Poor: 32% Great: 71%
SPEED RANK: 265th / 1122
Gaming
Gaming 56%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 41%
Speed boat
27,212 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 80% Base clock 2.8 GHz, turbo 0.75 GHz (avg)
Poor: 80% Great: 94%
SPEED RANK: 32nd / 1122
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
55.5 % 89.4 % Much faster effective speed.
+61%
SC Mixed
Avg. Single Core Mixed Speed
80.9 Pts 117 Pts Much faster single-core speed.
+45%
QC Mixed
Avg. Quad Core Mixed Speed
267 Pts 454 Pts Much faster quad-core speed.
+70%
MC Mixed
Avg. Multi Core Mixed Speed
417 Pts 657 Pts Much faster multi-core speed.
+58%
SC Mixed
OC Single Core Mixed Speed
105 Pts 123 Pts Faster OC single-core speed.
+17%
QC Mixed
OC Quad Core Mixed Speed
353 Pts 477 Pts Much faster OC quad-core speed.
+35%
MC Mixed
OC Multi Core Mixed Speed
494 Pts 703 Pts Much faster OC multi-core speed.
+42%
Market Share
Based on 10,345,084 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.19 % 1.55 % Hugely higher market share.
+716%
User Rating
UBM User Rating
72 % 112 % Much more popular.
+56%
Age
Newest
9+ Months Slightly more recent.
+10%
10 Months
SC Int
Single Core Integer Speed
101 Pts 118 Pts Faster single-core int speed.
+17%
SC Float
Single Core Floating Point Speed
110 Pts 128 Pts Faster single-core fp speed.
+16%
QC Int
Quad Core Integer Speed
342 Pts 462 Pts Much faster quad-core int speed.
+35%
QC Float
Quad Core Floating Point Speed
370 Pts 499 Pts Much faster quad-core fp speed.
+35%
MC Int
Multi Core Integer Speed
492 Pts 678 Pts Much faster multi-core int speed.
+38%
MC Float
Multi Core Floating Point Speed
510 Pts 739 Pts Much faster multi-core fp speed.
+45%
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Incredible performance  [Dec '17 Cloakist]

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) August 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. 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.
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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $370Samsung 850 Evo 250GB $95
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $120
Intel Core i5-8600K $245AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $901SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
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