IntelBX80684I58400
IntelBX80677I57500

6 Cores, 6 Threads
@2.8GHz Coffee Lake (2017)

4 Cores, 4 Threads
@3.4GHz Kaby Lake (2017)

Real World Speed
Performance profile from 46,780 user samples
14,806 User Benchmarks
Best Bench: 96% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 83% Base clock 2.8 GHz, turbo 1.4 GHz (avg)
Poor: 83% Great: 96%
SPEED RANK: 31st / 1110
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
31,974 User Benchmarks
Best Bench: 87% Base clock 3.4 GHz, turbo 3.6 GHz (avg)
Worst Bench: 66% Base clock 3.4 GHz, turbo 0.8 GHz (avg)
Poor: 66% Great: 87%
SPEED RANK: 60th / 1110
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 79%
Battleship
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed
91.1 % Slightly faster effective speed.
+14%
80.2 %
SC Mixed
Avg. Single Core Mixed Speed
119 Pts Slightly faster single-core speed.
+7%
111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
463 Pts Slightly faster quad-core speed.
+12%
415 Pts
MC Mixed
Avg. Multi Core Mixed Speed
673 Pts Much faster multi-core speed.
+60%
421 Pts
SC Mixed
OC Single Core Mixed Speed
125 Pts Slightly faster OC single-core speed.
+5%
119 Pts
QC Mixed
OC Quad Core Mixed Speed
486 Pts Slightly faster OC quad-core speed.
+7%
453 Pts
MC Mixed
OC Multi Core Mixed Speed
718 Pts Much faster OC multi-core speed.
+57%
456 Pts
Market Share
Based on 9,332,833 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.15 % Much higher market share.
+69%
0.68 %
Value
Value For Money
109 % Slightly better value.
+14%
96 %
User Rating
UBM User Rating
104 % Much more popular.
+73%
60 %
Price
Price (score)
$179 +1% $180
Age
Newest
8 Months Much more recent.
+53%
17 Months
TDP
Thermal Design Power (TDP)
65 Watts 65 Watts
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
6 threads Much higher thread count.
+50%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.8 GHz 3.4 GHz Faster base frequency.
+21%
Turbo Clock
Turbo Clock Speed
4 GHz Slightly faster turbo frequency.
+5%
3.8 GHz
SC Int
Single Core Integer Speed
122 Pts Slightly faster single-core int speed.
+6%
115 Pts
SC Float
Single Core Floating Point Speed
129 Pts Slightly faster single-core fp speed.
+6%
122 Pts
QC Int
Quad Core Integer Speed
473 Pts Slightly faster quad-core int speed.
+7%
441 Pts
QC Float
Quad Core Floating Point Speed
501 Pts Slightly faster quad-core fp speed.
+7%
467 Pts
MC Int
Multi Core Integer Speed
699 Pts Much faster multi-core int speed.
+58%
442 Pts
MC Float
Multi Core Floating Point Speed
743 Pts Much faster multi-core fp speed.
+58%
469 Pts
Series
CPU Architecture
Coffee Lake (2017) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 630
Launch Date
Launch Date
Q4'17 Q1'17
Cache
Cache
9 MB 6 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
N/A $192.00 - $202.00
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.10 GHz
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 Up to 1x16, 2x8, 1x8+2x4

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

The Core i5-7500 is not due for release until January 2017 but one of our users has submitted benchmarks for it already. We only have one sample so these benchmark results are obviously preliminary. Comparing the 7500 and 6500 shows that average effective speed is up by an impressive 15%. Although price details are not yet available the i5-7500 is likely to cost around $210 which would be in line with the prices for previous generations of this i5. We will revisit this summary when we have more samples. [Oct '16 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) June 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. 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

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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CPUGPUSSD
AMD Ryzen 5 1600 $170Nvidia GTX 1070 $420Samsung 850 Evo 250GB $104
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $138
Intel Core i5-8600K $238AMD RX 480 $280Samsung 850 Pro 256GB $121
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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