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IntelBX80684I58400
IntelBX8071512400
▲ 615,299 ▼

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

VS
▲ 923,343 ▼

6 Cores, 12 Threads @2.5GHz, Alder Lake.
Release date: Q1 2022.

Effective Speed 
+20%
Real World Speed
Performance profile from 329,572 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: 212th / 1442
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
17,352 User Benchmarks
Best Bench: 106% Base clock 2.5 GHz, turbo 4 GHz (avg)
Worst Bench: 91% Base clock 2.5 GHz, turbo 4 GHz (avg)
Poor: 91% Great: 106%
SPEED RANK: 84th / 1442
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 101%
UFO
Workstation
Workstation 92%
Nuclear submarine
Effective Speed
Effective CPU Speed 		81.8 % 98.2 % Faster effective speed.
+20%
Average Score 
+42%
Memory
Avg. Memory Latency 		84.9 Pts Slightly lower memory latency.
+5% 		80.7 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 331 Pts Much faster dual-core speed.
+48%
4-Core
Avg. Quad Core Speed 		434 Pts 621 Pts Much faster quad-core speed.
+43%
8-Core
Avg. Octa Core Speed 		564 Pts 973 Pts Much faster octa-core speed.
+73%
Overclocked Score 
+39%
Memory
OC Memory Latency 		94.2 Pts +4% 90.4 Pts
1-Core
OC Single Core Speed 		120 Pts 182 Pts Much faster OC single-core speed.
+52%
2-Core
OC Dual Core Speed 		237 Pts 353 Pts Much faster OC dual-core speed.
+49%
4-Core
OC Quad Core Speed 		471 Pts 673 Pts Much faster OC quad-core speed.
+43%
8-Core
OC Octa Core Speed 		657 Pts 1039 Pts Much faster OC octa-core speed.
+58%
Value & Sentiment 
+19%
Market Share
Based on 67,694,506 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.96 % Hugely higher market share.
+129% 		0.42 %
Value
Value For Money 		101 % 116 % Better value.
+15%
User Rating
UBM User Rating 		61 % 92 % Much more popular.
+51%
Price
Price (score) 		$131 Cheaper.
+14% 		$152
Nice To Haves 
+41%
Age
Newest 		78 Months 27 Months Much more recent.
+65%
TDP
Thermal Design Power (TDP) 		65 Watts 65 Watts
Cores
CPU Processing Cores 		6 cores 6 cores
Threads
CPU Processing Threads 		6 threads 12 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process 		14 nm 10 nm Newer manufacturing.
+29%
Base Clock
Base Clock Speed 		2.8 GHz Faster base frequency.
+12% 		2.5 GHz
Turbo Clock
Turbo Clock Speed 		4 GHz 4.4 GHz Faster turbo frequency.
+10%
64-Core
OC Multi Core Speed 		675 Pts 1221 Pts Hugely faster OC 64-core speed.
+81%
64-Core
Avg. Multi Core Speed 		588 Pts 1176 Pts Hugely faster 64-core speed.
+100%
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 98.2%
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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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I originally wanted an i5-12600 but unfortunately, it was not available so I settled for a 12400. It's really affordable and the performance is great. [Nov '22 arvinjason]

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Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $131Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
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Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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