IntelBX80684I58400
1st

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

VS
About
  

Release date ≈ Q4 2014.

Real World Speed
Performance profile from 109,966 user samples
109,239 User Benchmarks
Best Bench: 84% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 64% Base clock 2.8 GHz, turbo 1.25 GHz (avg)
Poor: 64% Great: 84%
SPEED RANK: 52nd / 1182
Gaming
Gaming 78%
Battleship
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 56%
Gunboat
727 User Benchmarks
Best Bench: 59% Base clock 2.4 GHz, turbo 2.7 GHz (avg)
Worst Bench: 35% Base clock 2.4 GHz, turbo 0.4 GHz (avg)
Poor: 35% Great: 59%
SPEED RANK: 237th / 1182
Gaming
Gaming 53%
Yacht
Desktop
Desktop 54%
Yacht
Workstation
Workstation 60%
Destroyer
Effective Speed
Effective CPU Speed
78.3 % Much faster effective speed.
+48%
52.8 %
1-Core
Avg. Single Core Mixed Speed
116 Pts Much faster single-core speed.
+47%
78.8 Pts
2-Core
Avg. Dual Core Mixed Speed
230 Pts Much faster dual-core speed.
+47%
156 Pts
4-Core
Avg. Quad Core Mixed Speed
447 Pts Much faster quad-core speed.
+51%
296 Pts
8-Core
Avg. Octa Core Mixed Speed
633 Pts Faster octa-core speed.
+26%
502 Pts
64-Core
Avg. Multi Core Mixed Speed
641 Pts 1117 Pts Much faster 64-core speed.
+74%
1-Core
OC Single Core Mixed Speed
122 Pts Much faster OC single-core speed.
+30%
93.8 Pts
2-Core
OC Dual Core Mixed Speed
242 Pts Much faster OC dual-core speed.
+31%
185 Pts
4-Core
OC Quad Core Mixed Speed
475 Pts Much faster OC quad-core speed.
+43%
333 Pts
8-Core
OC Octa Core Mixed Speed
694 Pts Slightly faster OC octa-core speed.
+15%
605 Pts
64-Core
OC Multi Core Mixed Speed
698 Pts 1222 Pts Much faster OC 64-core speed.
+75%
Market Share
Based on 19,383,632 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.02 % Insanely higher market share.
+10,100%
0.01 %
User Rating
UBM User Rating
70 % Much more popular.
+40%
50 %
Age
Newest
22 Months Much more recent.
+61%
57+ Months
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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

Processor Rankings (Price vs Performance) August 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.
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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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The Best.
CPUGPUSSD
AMD Ryzen 5 3600 $198Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
Intel Core i5-9400F $143Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $103
Intel Core i5-9600K $230Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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