Buy on Amazon
$175
In Stock
Availability
Availability
Availability
Availability
Key Differences
In short — Core i7-8700K outperforms the cheaper Core i5-8400 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i7-8700K and the cheaper Core i5-8400 have been released at the same time.
Advantages of Intel Core i7-8700K
- Performs up to 5% better in Tom Clancy's Rainbow Six Siege than Core i5-8400 - 580 vs 552 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 12 vs 6 threads
- Works without a dedicated GPU, while Intel Core i5-8400 doesn't have integrated graphics
Advantages of Intel Core i5-8400
- Up to 57% cheaper than Core i7-8700K - $74.64 vs $175.0
- Consumes up to 32% less energy than Intel Core i7-8700K - 65 vs 95 Watts
Tom Clancy's Rainbow Six Siege
Resolution
1920 x 1080
Game Graphics
Ultra
Intel Core i7-8700K Desktop Processor 6 Cores up to 4.7GHz Turbo Unlocked LGA1151 300 Series 95W
Buy for $175 on Amazon
In Stock
Updated 74299 minutes ago
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $74.64 on Amazon
In Stock
Updated 74299 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i7-8700K
Desktop • Oct 5th, 2017
Core i5-8400
Desktop • Oct 5th, 2017
Geekbench 5 Benchmarks
Core i5-8400
Desktop • Oct 5th, 2017
Single-Core
1353
85.52465233881163%
Multi-Core
4748
73.69237932640075%
Intel Core i7-8700K | vs | Intel Core i5-8400 |
|---|---|---|
| Oct 5th, 2017 | Release Date | Oct 5th, 2017 |
| Core i7 | Collection | Core i5 |
| Coffee Lake | Codename | Coffee Lake |
| Intel Socket 1151 | Socket | Intel Socket 1151 |
Desktop | Segment | Desktop |
| 6 | Cores | 6 |
12 | Threads | 6 |
3.7 GHz | Base Clock Speed | 2.8 GHz |
4.7 GHz | Turbo Clock Speed | 4.0 GHz |
| 95 W | TDP | 65 W |
| 14 nm | Process Size | 14 nm |
37.0x | Multiplier | 28.0x |
UHD Graphics 630 | Integrated Graphics | None |
Yes | Overclockable | No |
Builds Using Core i7-8700K or Core i5-8400
Tom Clancy's Rainbow Six Siege, 1920 x 1080, Ultra
262 FPS
$7.63/FPS
GeForce GTX 1080 Ti
Core i7-8700K
16 GB, 2 TB HDD
Buy on Amazon
$1,999.99
In Stock
132 FPS
$6.44/FPS
Radeon RX 580
Core i5-8400
8 GB, 1 TB HDD
Buy on Amazon
$849.99
In Stock
Similar CPU Comparisons
Select from the most popular similar processor comparisons. Most compared processor combinations, including the currently selected ones, are at the top.
