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IntelBX80684I58400
Intel

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

  

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

Real World Speed
Performance profile from 336,641 user samples
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
24,421 User Benchmarks
Best Bench: 58% Base clock 2.7 GHz, turbo 3.4 GHz (avg)
Worst Bench: 22% Base clock 2.7 GHz, turbo 0.4 GHz (avg)
Poor: 22% Great: 58%
SPEED RANK: 960th / 1468
Gaming
Gaming 45%
Speed boat
Desktop
Desktop 52%
Yacht
Workstation
Workstation 33%
Sail boat
Effective Speed
Effective CPU Speed
81.8 % Hugely faster effective speed.
+82%
45 %
Memory
Avg. Memory Latency
84.9 Pts Much lower memory latency.
+44%
59 Pts
1-Core
Avg. Single Core Speed
113 Pts Much faster single-core speed.
+59%
70.9 Pts
2-Core
Avg. Dual Core Speed
224 Pts Much faster dual-core speed.
+76%
127 Pts
4-Core
Avg. Quad Core Speed
434 Pts Hugely faster quad-core speed.
+142%
179 Pts
8-Core
Avg. Octa Core Speed
564 Pts Hugely faster octa-core speed.
+200%
188 Pts
Memory
OC Memory Latency
94.2 Pts Lower OC memory latency.
+17%
80.2 Pts
1-Core
OC Single Core Speed
120 Pts Faster OC single-core speed.
+28%
94.1 Pts
2-Core
OC Dual Core Speed
237 Pts Much faster OC dual-core speed.
+39%
170 Pts
4-Core
OC Quad Core Speed
471 Pts Hugely faster OC quad-core speed.
+95%
241 Pts
8-Core
OC Octa Core Speed
657 Pts Hugely faster OC octa-core speed.
+167%
246 Pts
Market Share
Based on 69,042,049 CPUs tested
Market Share
Market Share (trailing 30 days)
0.9 % Insanely higher market share.
+1,400%
0.06 %
User Rating
UBM User Rating
62 % More popular.
+17%
53 %
Age
Newest
85 Months Slightly more recent.
+10%
94+ Months
64-Core
OC Multi Core Speed
675 Pts Hugely faster OC 64-core speed.
+177%
244 Pts
64-Core
Avg. Multi Core Speed
588 Pts Hugely faster 64-core speed.
+211%
189 Pts
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
Max Turbo Frequency
Max Turbo Frequency
4.00 GHz 3.50 GHz
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 »

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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