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Intel
IntelBX80684I58400
▲ 621,343 ▼
  

4 Cores, 8 Threads @2.6 GHz, Skylake.
Release date ≈ Q3 2015.

VS
▲ 625,401 ▼

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

Effective Speed 
+39%
Real World Speed
Performance profile from 632,654 user samples
Benchmark your CPU here
320,434 User Benchmarks
Best Bench: 69% Base clock 2.6 GHz, turbo 3.1 GHz (avg)
Worst Bench: 34% Base clock 2.6 GHz, turbo 0.8 GHz (avg)
Poor: 34% Great: 69%
SPEED RANK: 623rd / 1468
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 47%
Yacht
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
Effective Speed
Effective CPU Speed 		58.7 % 81.8 % Much faster effective speed.
+39%
Average Score 
+45%
Memory
Avg. Memory Latency 		68.7 Pts 84.9 Pts Lower memory latency.
+24%
1-Core
Avg. Single Core Speed 		78.7 Pts 113 Pts Much faster single-core speed.
+44%
2-Core
Avg. Dual Core Speed 		149 Pts 224 Pts Much faster dual-core speed.
+50%
4-Core
Avg. Quad Core Speed 		265 Pts 434 Pts Much faster quad-core speed.
+64%
8-Core
Avg. Octa Core Speed 		393 Pts 564 Pts Much faster octa-core speed.
+44%
Overclocked Score 
+34%
Memory
OC Memory Latency 		82.9 Pts 94.2 Pts Lower OC memory latency.
+14%
1-Core
OC Single Core Speed 		91.2 Pts 120 Pts Much faster OC single-core speed.
+32%
2-Core
OC Dual Core Speed 		175 Pts 237 Pts Much faster OC dual-core speed.
+35%
4-Core
OC Quad Core Speed 		309 Pts 471 Pts Much faster OC quad-core speed.
+52%
8-Core
OC Octa Core Speed 		479 Pts 657 Pts Much faster OC octa-core speed.
+37%
Value & Sentiment 
+123%
Market Share
Based on 69,042,049 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.26 % 0.9 % Hugely higher market share.
+246%
User Rating
UBM User Rating 		62 % 62 %
Nice To Haves 
+36%
Age
Newest 		110+ Months 85 Months More recent.
+23%
64-Core
OC Multi Core Speed 		485 Pts 675 Pts Much faster OC 64-core speed.
+39%
64-Core
Avg. Multi Core Speed 		404 Pts 588 Pts Much faster 64-core speed.
+46%
Specifications 
Launch Date
Launch Date 		Q3'15 Q4'17
Cache
Cache 		6 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price 		$378.00 N/A
Max Turbo Frequency
Max Turbo Frequency 		3.5 GHz 4.00 GHz
Memory Types
Memory Types 		DDR4-2133, LPDDR3-1866, DDR3L-1600 DDR4-2666
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 530 Intel® UHD Graphics 630
Package Size
Package Size 		42mm x 28mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
PCI Express Configurations
PCI Express Configurations ‡ 		Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
Conclusion 
Average Bench 58.7%
Average Bench 81.8%

for laptop performance works great but not the best battery usage [Dec '18 BurntTech]

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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