IntelBX80684I58400
AMD

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

  

Release date ≈ Q4 2017.

Real World Speed
Performance profile from 43,832 user samples
40,649 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 77% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 77% Great: 94%
SPEED RANK: 34th / 1129
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
3,183 User Benchmarks
Best Bench: 72% Base clock 2 GHz, turbo 3 GHz (avg)
Worst Bench: 32% Base clock 2 GHz, turbo 0.4 GHz (avg)
Poor: 32% Great: 72%
SPEED RANK: 271st / 1129
Gaming
Gaming 55%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 41%
Speed boat
Effective Speed
Effective CPU Speed
88.8 % Much faster effective speed.
+60%
55.4 %
SC Mixed
Avg. Single Core Mixed Speed
117 Pts Much faster single-core speed.
+45%
80.7 Pts
QC Mixed
Avg. Quad Core Mixed Speed
451 Pts Much faster quad-core speed.
+69%
267 Pts
MC Mixed
Avg. Multi Core Mixed Speed
651 Pts Much faster multi-core speed.
+58%
413 Pts
SC Mixed
OC Single Core Mixed Speed
122 Pts Faster OC single-core speed.
+15%
106 Pts
QC Mixed
OC Quad Core Mixed Speed
476 Pts Much faster OC quad-core speed.
+33%
358 Pts
MC Mixed
OC Multi Core Mixed Speed
701 Pts Much faster OC multi-core speed.
+41%
497 Pts
Market Share
Based on 11,488,738 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.3 % Hugely higher market share.
+491%
0.22 %
User Rating
UBM User Rating
115 % Much more popular.
+53%
75 %
Age
Newest
12 Months 11+ Months Slightly more recent.
+8%
SC Int
Single Core Integer Speed
118 Pts Faster single-core int speed.
+17%
101 Pts
SC Float
Single Core Floating Point Speed
128 Pts Faster single-core fp speed.
+16%
110 Pts
QC Int
Quad Core Integer Speed
460 Pts Much faster quad-core int speed.
+33%
347 Pts
QC Float
Quad Core Floating Point Speed
499 Pts Much faster quad-core fp speed.
+32%
377 Pts
MC Int
Multi Core Integer Speed
676 Pts Much faster multi-core int speed.
+38%
490 Pts
MC Float
Multi Core Floating Point Speed
738 Pts Much faster multi-core fp speed.
+44%
512 Pts
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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]

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AMD's Ryzen 5 2500U sports 4 cores and 8 threads with Radeon Vega 8 Integrated Graphics. The 4 cores and 8 threads is standard amongst new laptops with processors such as the i5-8250U from the blue team. What stands out is the powerful Vega 8 Graphics.It is about 50-100% better than the the i5-8250U's UHD 620 graphics, meaning it can be used for some light gaming on the go. However, despite the powerful specs on paper, adoption of AMD Ryzen mobile processors has been really slow, with very few models out there. Hopefully, AMD's 7nm mobile APU coming in 2019 will see more widespread adoption. [Aug '18 geistrucker]

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Processor Rankings (Price vs Performance) October 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 $370Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $115
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
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