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Intel
IntelBX80684I58400
▲ 5173 ▼
  

2 Cores, @2.2 GHz, Penryn.
Release date ≤ Q4 2013.

VS
▲ 615,299 ▼

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

Effective Speed 
+137%
Real World Speed
Performance profile from 320,893 user samples
Benchmark your CPU here
8,673 User Benchmarks
Best Bench: 41% Base clock 2.2 GHz
Worst Bench: 22% Base clock 2.2 GHz, turbo 1.2 GHz (avg)
Poor: 22% Great: 41%
SPEED RANK: 1205th / 1442
Gaming
Gaming 35%
Sail boat
Desktop
Desktop 39%
Jet ski
Workstation
Workstation 23%
Surfboard
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
Effective Speed
Effective CPU Speed 		34.5 % 81.8 % Hugely faster effective speed.
+137%
Average Score 
+434%
Memory
Avg. Memory Latency 		59.8 Pts 84.9 Pts Much lower memory latency.
+42%
1-Core
Avg. Single Core Speed 		29.8 Pts 113 Pts Hugely faster single-core speed.
+279%
2-Core
Avg. Dual Core Speed 		55.7 Pts 224 Pts Hugely faster dual-core speed.
+302%
4-Core
Avg. Quad Core Speed 		56.8 Pts 434 Pts Hugely faster quad-core speed.
+664%
8-Core
Avg. Octa Core Speed 		57.5 Pts 564 Pts Hugely faster octa-core speed.
+881%
Overclocked Score 
+390%
Memory
OC Memory Latency 		70.6 Pts 94.2 Pts Much lower OC memory latency.
+33%
1-Core
OC Single Core Speed 		34.9 Pts 120 Pts Hugely faster OC single-core speed.
+244%
2-Core
OC Dual Core Speed 		69.3 Pts 237 Pts Hugely faster OC dual-core speed.
+242%
4-Core
OC Quad Core Speed 		69.4 Pts 471 Pts Hugely faster OC quad-core speed.
+579%
8-Core
OC Octa Core Speed 		69.1 Pts 657 Pts Hugely faster OC octa-core speed.
+851%
Value & Sentiment 
+∞%
Market Share
Based on 67,696,894 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.95 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		51 % 61 % More popular.
+20%
Nice To Haves 
+616%
Age
Newest 		124+ Months 78 Months Much more recent.
+37%
64-Core
OC Multi Core Speed 		69.2 Pts 675 Pts Hugely faster OC 64-core speed.
+875%
64-Core
Avg. Multi Core Speed 		56.8 Pts 588 Pts Hugely faster 64-core speed.
+935%
Specifications 
Launch Date
Launch Date 		Q1'09 Q4'17
Cache
Cache 		2 MB L2 9 MB
Lithography
Lithography 		45 nm 14 nm
Bus Speed
Bus Speed 		800 MHz FSB 8 GT/s DMI3
Package Size
Package Size 		35 mm x 35 mm 37.5mm x 37.5mm
Virtualization Tech (VT-x)
Intel® Virtualization Technology (VT-x) ‡ 		No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		No 2.0

More specs » More specs »
Conclusion 
Average Bench 34.5%
Average Bench 81.8%
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My dad's old "netbook" uses this CPU. It still runs Windows 7 and it can't even handle that. [Apr '21 whittical]

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

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $132Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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