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IntelBX80684I58400
IntelBX8071512100
▲ 615,392 ▼

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

VS
▲ 911,647 ▼

4 Cores, 8 Threads @3.3GHz, Alder Lake.
Release date: Q1 2022.

Effective Speed 
+15%
Real World Speed
Performance profile from 316,412 user samples
Benchmark your CPU here
312,220 User Benchmarks
Best Bench: 89% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 61% Base clock 2.8 GHz, turbo 0.8 GHz (avg)
Poor: 61% Great: 89%
SPEED RANK: 231st / 1468
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
4,192 User Benchmarks
Great bench: 100% Base clock 3.3 GHz, turbo 4.1 GHz (avg)
Poor bench: 88% Base clock 3.3 GHz, turbo 4.05 GHz (avg)
Poor: 88% Great: 100%
SPEED RANK: 133rd / 1468
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 81%
Aircraft carrier
Effective Speed
Effective CPU Speed 		81.8 % 94.2 % Faster effective speed.
+15%
Average Score 
+35%
Memory
Avg. Memory Latency 		84.9 Pts Slightly lower memory latency.
+5% 		80.5 Pts
1-Core
Avg. Single Core Speed 		113 Pts 173 Pts Much faster single-core speed.
+53%
2-Core
Avg. Dual Core Speed 		224 Pts 327 Pts Much faster dual-core speed.
+46%
4-Core
Avg. Quad Core Speed 		434 Pts 584 Pts Much faster quad-core speed.
+35%
8-Core
Avg. Octa Core Speed 		564 Pts 820 Pts Much faster octa-core speed.
+45%
Overclocked Score 
+32%
Memory
OC Memory Latency 		94.2 Pts Slightly lower OC memory latency.
+5% 		89.6 Pts
1-Core
OC Single Core Speed 		120 Pts 179 Pts Much faster OC single-core speed.
+49%
2-Core
OC Dual Core Speed 		237 Pts 348 Pts Much faster OC dual-core speed.
+47%
4-Core
OC Quad Core Speed 		471 Pts 661 Pts Much faster OC quad-core speed.
+40%
8-Core
OC Octa Core Speed 		657 Pts 841 Pts Faster OC octa-core speed.
+28%
Value & Sentiment 
+220%
Market Share
Based on 68,956,589 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.81 % Hugely higher market share.
+912% 		0.08 %
Value
Value For Money 		113 % 121 % Slightly better value.
+7%
User Rating
UBM User Rating 		61 % 91 % Much more popular.
+49%
Price
Price (score) 		$85 Cheaper.
+23% 		$111
Nice To Haves 
+19%
Age
Newest 		85 Months 34 Months Much more recent.
+60%
TDP
Thermal Design Power (TDP) 		65 Watts 60 Watts Slightly more energy efficient.
+8%
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		6 threads 8 threads Much higher thread count.
+33%
Lithography
Manufacturing process 		14 nm 10 nm Newer manufacturing.
+29%
Base Clock
Base Clock Speed 		2.8 GHz 3.3 GHz Faster base frequency.
+18%
Turbo Clock
Turbo Clock Speed 		4 GHz 4.3 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Speed 		675 Pts 842 Pts Faster OC 64-core speed.
+25%
64-Core
Avg. Multi Core Speed 		588 Pts 821 Pts Much faster 64-core speed.
+40%
Specifications 
Series
CPU Architecture 		Coffee Lake Alder Lake
Socket
Motherboard Socket 		FCLGA1151 FCLGA1700
Graphics
Integrated Graphics 		UHD 630 UHD 730
Conclusion 
Average Bench 81.8%
Average Bench 94.2%

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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I don't really like how they added such a tax for the integrated graphics. An extra $20 for an iGPU - especially on an i3 - isn't good. However, this CPU is one of the fastest quad cores to date and can run even on the most potato of power supplies. It brings out incredible gaming performance up to 50% faster than the i3 10100. It even manages to beat 6 core CPUs from AMD that run on Zen2, very impressive for just an i3 processor. Good job Intel, you got your position as king back.  [Apr '22 Waaaaaal]

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