IntelBX80684I58400
Intel

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

VS
About
  

2 Cores, 4 Threads @2.60 GHz, Kaby Lake.
Release date ≈ Q1 2017.

Real World Speed
Performance profile from 117,788 user samples
109,239 User Benchmarks
Best Bench: 84% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 64% Base clock 2.8 GHz, turbo 1.25 GHz (avg)
Poor: 64% Great: 84%
SPEED RANK: 52nd / 1182
Gaming
Gaming 78%
Battleship
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 56%
Gunboat
8,549 User Benchmarks
Best Bench: 48% Base clock 2.7 GHz, turbo 3.5 GHz (avg)
Worst Bench: 26% Base clock 2.7 GHz, turbo 1 GHz (avg)
Poor: 26% Great: 48%
SPEED RANK: 374th / 1182
Gaming
Gaming 41%
Speed boat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 25%
Raft
Effective Speed
Effective CPU Speed
78.3 % Hugely faster effective speed.
+93%
40.6 %
1-Core
Avg. Single Core Mixed Speed
116 Pts Faster single-core speed.
+28%
90.8 Pts
2-Core
Avg. Dual Core Mixed Speed
230 Pts Much faster dual-core speed.
+40%
164 Pts
4-Core
Avg. Quad Core Mixed Speed
447 Pts Hugely faster quad-core speed.
+83%
244 Pts
8-Core
Avg. Octa Core Mixed Speed
633 Pts Hugely faster octa-core speed.
+156%
247 Pts
64-Core
Avg. Multi Core Mixed Speed
641 Pts Hugely faster 64-core speed.
+160%
247 Pts
1-Core
OC Single Core Mixed Speed
122 Pts Slightly faster OC single-core speed.
+13%
108 Pts
2-Core
OC Dual Core Mixed Speed
242 Pts Faster OC dual-core speed.
+23%
197 Pts
4-Core
OC Quad Core Mixed Speed
475 Pts Much faster OC quad-core speed.
+65%
288 Pts
8-Core
OC Octa Core Mixed Speed
694 Pts Hugely faster OC octa-core speed.
+140%
289 Pts
64-Core
OC Multi Core Mixed Speed
698 Pts Hugely faster OC 64-core speed.
+140%
291 Pts
Market Share
Based on 19,404,473 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.03 % Hugely higher market share.
+930%
0.1 %
User Rating
UBM User Rating
71 % More popular.
+22%
58 %
Age
Newest
22 Months More recent.
+29%
31+ Months
Launch Date
Launch Date
Q4'17 Q1'17
Cache
Cache
9 MB 3 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Embedded Options Available
Embedded Options Available
No Yes
Recommended Price
Recommended Customer Price
N/A $281.00
Bus Speed
Bus Speed
8 GT/s DMI3 4 GT/s OPI
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR4-2133, LPDDR3-1866, DDR3L-1600
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 620
Graphics Base Frequency
Graphics Base Frequency
350 MHz 300.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.10 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 32 GB
Package Size
Package Size
37.5mm x 37.5mm 42mm X 24mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 1x4, 2x2, 1x2+2x1 and 4x1
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 12

More specs » More specs »
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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]

MORE DETAILS

Processor Rankings (Price vs Performance) August 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. 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

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  • 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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