IntelBX80684I59600K
IntelBX80684I58400

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

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

Real World Speed
Performance profile from 143,325 user samples
43,014 User Benchmarks
Best Bench: 119% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 92% Base clock 3.7 GHz, turbo 0.9 GHz (avg)
Poor: 92% Great: 119%
SPEED RANK: 26th / 1158
Gaming
Gaming 104%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 75%
Battleship
100,311 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 79% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 79% Great: 94%
SPEED RANK: 53rd / 1158
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
104 % Faster effective speed.
+17%
88.8 %
SC Mixed
Avg. Single Core Mixed Speed
137 Pts Faster single-core speed.
+17%
117 Pts
QC Mixed
Avg. Quad Core Mixed Speed
529 Pts Faster quad-core speed.
+17%
451 Pts
MC Mixed
Avg. Multi Core Mixed Speed
759 Pts Faster multi-core speed.
+17%
647 Pts
SC Mixed
OC Single Core Mixed Speed
156 Pts Faster OC single-core speed.
+27%
123 Pts
QC Mixed
OC Quad Core Mixed Speed
609 Pts Faster OC quad-core speed.
+27%
478 Pts
MC Mixed
OC Multi Core Mixed Speed
889 Pts Faster OC multi-core speed.
+27%
698 Pts
Market Share
Based on 17,792,756 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.17 % 1.33 % Slightly higher market share.
+14%
Value
Value For Money
114 % Slightly better value.
+11%
103 %
User Rating
UBM User Rating
73 % 114 % Much more popular.
+56%
Price
Price (score)
$230 $196 Slightly cheaper.
+15%
Age
Newest
8 Months Much more recent.
+60%
20 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
SC Int
Single Core Integer Speed
150 Pts Faster single-core int speed.
+27%
118 Pts
SC Float
Single Core Floating Point Speed
162 Pts Faster single-core fp speed.
+27%
128 Pts
QC Int
Quad Core Integer Speed
581 Pts Faster quad-core int speed.
+26%
461 Pts
QC Float
Quad Core Floating Point Speed
648 Pts Much faster quad-core fp speed.
+30%
498 Pts
MC Int
Multi Core Integer Speed
844 Pts Faster multi-core int speed.
+26%
669 Pts
MC Float
Multi Core Floating Point Speed
952 Pts Faster multi-core fp speed.
+29%
738 Pts
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 the latest line-up of Intel’s 9th generation of unlocked CPUs based on their refreshed Coffee Lake 14nm architecture. This round of releases also includes the 8 core, 8 thread i7-9700K and the flagship 8 core, 16 thread i9-9900K, out of which the 9600K at USD $280 is the value leader. The 9600K supersedes last year’s similarly priced 6 core 8600K and out of the box operates at higher clocks: base 3.7 GHz vs 3.6 GHz, all core 4.3 GHz vs 4.1 GHz and single 4.6 GHz vs 4.3 GHz. The 9600K has a TDP of 95W and will require a large cooler to match. The new Z390 or last years Z370 chipset with a BIOS update are both supported. Intensive multi-threaded task masters would do better to spend a similar amount on the Ryzen 7 2700X, where an extra USD $10 buys 2 more cores and 10 more threads resulting in multi-core benchmarks 70% higher than for the 9600K. However, for the vast majority of users that undertake up to quad-core workloads, the 9600K offers very reasonable bang for your buck, and when fully overclocked, almost second to none performance for gamers. [Oct '18 CPUPro]

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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) June 2019 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.
  • 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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