IntelBX80684I59600K
IntelBX80684I58400

6 Cores, 6 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2018.

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About

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

Real World Speed
Performance profile from 174,736 user samples
63,070 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 84% Base clock 3.7 GHz, turbo 1.85 GHz (avg)
Poor: 84% Great: 107%
SPEED RANK: 11th / 1183
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 96%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
111,666 User Benchmarks
Best Bench: 84% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 66% Base clock 2.8 GHz, turbo 2.45 GHz (avg)
Poor: 66% Great: 84%
SPEED RANK: 50th / 1183
Gaming
Gaming 79%
Battleship
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
94 % Faster effective speed.
+19%
79.1 %
1-Core
Avg. Single Core Mixed Speed
138 Pts Faster single-core speed.
+18%
117 Pts
2-Core
Avg. Dual Core Mixed Speed
274 Pts Faster dual-core speed.
+19%
230 Pts
4-Core
Avg. Quad Core Mixed Speed
536 Pts Faster quad-core speed.
+19%
451 Pts
8-Core
Avg. Octa Core Mixed Speed
762 Pts Faster octa-core speed.
+19%
643 Pts
64-Core
Avg. Multi Core Mixed Speed
767 Pts Faster 64-core speed.
+18%
650 Pts
1-Core
OC Single Core Mixed Speed
155 Pts Faster OC single-core speed.
+26%
123 Pts
2-Core
OC Dual Core Mixed Speed
310 Pts Faster OC dual-core speed.
+28%
242 Pts
4-Core
OC Quad Core Mixed Speed
611 Pts Faster OC quad-core speed.
+28%
477 Pts
8-Core
OC Octa Core Mixed Speed
888 Pts Faster OC octa-core speed.
+27%
697 Pts
64-Core
OC Multi Core Mixed Speed
888 Pts Faster OC 64-core speed.
+27%
698 Pts
Market Share
Based on 20,902,842 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.96 % 1.09 % Slightly higher market share.
+14%
Value
Value For Money
99.6 % Slightly better value.
+12%
88.9 %
User Rating
UBM User Rating
155 % Hugely more popular.
+138%
65 %
Price
Price (score)
$225 $182 Cheaper.
+19%
Age
Newest
11 Months Much more recent.
+54%
24 Months
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
6 threads 6 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz Much faster base frequency.
+32%
2.8 GHz
Turbo Clock
Turbo Clock Speed
4.6 GHz Slightly faster turbo frequency.
+15%
4 GHz
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Launch Date
Launch Date
Q4'18 Q4'17
Cache
Cache
9 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$262.00 - $263.00 N/A
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
TSX-NI
Intel® TSX-NI
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution 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 »
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The hex-core i5-9600K is third in Intel’s line-up of 9th generation Coffee Lake CPUs. It has a TDP of 95W and requires an aftermarket cooler ($30+). The 9600K was designed to be overclocked. Once this is enabled in the BIOS (requires a Z-series motherbaord), the 9600K runs 10% faster. In terms of performance, the i5-9600K is almost unbeatable for desktop users and it has sufficient multi-core performance to handle all but the most demanding workstation tasks. For Heavy workstation users the Ryzen 3000 series offers great 64-core performance at a very competitive price. For example the overclocked Ryzen 3600 is approximately 13% worse for gaming and desktop (sub octa-core tasks) but it is 27% faster for 64-core processing. At stock clocks the i5-9600K is around 8% slower than Intel’s flagship i9-9900K but when both are overclocked, the 9600K closes the gaming gap to within two or three percent. Considering that the 9900K is the fastest gaming processor available, and almost twice the price of the 9600K, this is no small feat. The i5-9600K is aimed squarely at gamers who are not willing to compromise on performance but don't want to pay more than they need to. [Oct '18 CPUPro]

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

Processor Rankings (Price vs Performance) October 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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • 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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 Frequently Asked Questions

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CPUGPUSSD
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $55
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $275Samsung 850 Evo 500GB $107
Intel Core i7-9700K $288Nvidia RTX 2060S (Super) $430Samsung 850 Pro 256GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $37G.SKILL Trident Z DDR4 3200 C14 4x16GB $603SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $83Corsair Vengeance LPX DDR4 3200 C16 2x8GB $83SanDisk Ultra Fit 32GB $14
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