IntelBX80662I56600K
IntelBX80684I59400F

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

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About

6 Cores, 6 Threads @2.9GHz, Coffee Lake.
Release date: Q1 2019.

Real World Speed
Performance profile from 255,648 user samples
223,944 User Benchmarks
Best Bench: 92% Base clock 3.5 GHz, turbo 4.9 GHz (avg)
Worst Bench: 58% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 58% Great: 92%
SPEED RANK: 68th / 1186
Gaming
Gaming 77%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 42%
Speed boat
31,704 User Benchmarks
Best Bench: 86% Base clock 2.9 GHz, turbo 3.9 GHz (avg)
Worst Bench: 75% Base clock 2.9 GHz, turbo 3.1 GHz (avg)
Poor: 75% Great: 86%
SPEED RANK: 51st / 1186
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed
76.7 % 82.3 % Slightly faster effective speed.
+7%
1-Core
Avg. Single Core Mixed Speed
117 Pts 120 Pts +3%
2-Core
Avg. Dual Core Mixed Speed
232 Pts 238 Pts +3%
4-Core
Avg. Quad Core Mixed Speed
426 Pts 464 Pts Slightly faster quad-core speed.
+9%
8-Core
Avg. Octa Core Mixed Speed
436 Pts 662 Pts Much faster octa-core speed.
+52%
64-Core
Avg. Multi Core Mixed Speed
441 Pts 670 Pts Much faster 64-core speed.
+52%
1-Core
OC Single Core Mixed Speed
140 Pts Slightly faster OC single-core speed.
+11%
126 Pts
2-Core
OC Dual Core Mixed Speed
278 Pts Slightly faster OC dual-core speed.
+12%
249 Pts
4-Core
OC Quad Core Mixed Speed
529 Pts Slightly faster OC quad-core speed.
+8%
489 Pts
8-Core
OC Octa Core Mixed Speed
530 Pts 714 Pts Much faster OC octa-core speed.
+35%
64-Core
OC Multi Core Mixed Speed
537 Pts 718 Pts Much faster OC 64-core speed.
+34%
Market Share
Based on 21,659,294 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.08 % Higher market share.
+16%
0.93 %
Value
Value For Money
82.9 % 97.9 % Better value.
+18%
User Rating
UBM User Rating
99 % 170 % Much more popular.
+72%
Price
Price (score)
$210 $148 Cheaper.
+30%
Age
Newest
51 Months 9 Months Hugely more recent.
+82%
TDP
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
+29%
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
4 threads 6 threads Much higher thread count.
+50%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.5 GHz Faster base frequency.
+21%
2.9 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.1 GHz Slightly faster turbo frequency.
+5%
Series
CPU Architecture
Skylake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 None
Launch Date
Launch Date
Q3'15 Q1'19
Cache
Cache
6 MB SmartCache 9 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2666
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 41.6 GB/s
TSX-NI
Intel® TSX-NI
Yes No

More specs » More specs »
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The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]

MORE DETAILS

Intel’s Core i5-9400F is a hex-core 9th generation Coffee Lake desktop processor. It features base / boost clocks of 2.9 / 4.1 GHz, 9 MB of cache, a 65W TDP and it ships with a cooler but it does not have integrated graphics like the “non-F” variants. Although the 9400F is compatible with the enthusiast grade Z390 chipset it is normally paired with a better value for money B360 motherboard. At its launch the i5-9400F retailed for $180 but prices have dropped to a point that it now represents an excellent value proposition to gamers. Comparing the i5-9400F to the Ryzen 3600 shows that the 3600 is 8% better for quad-core processing but it costs 40% ($50) more than the 9400F. Ordinarily higher quad-core performance would result in better gaming but the Ryzen 3000 memory controller, although significantly improved over previous Ryzen iterations, still has limited bandwidth and high latency. Gamers can invest the $50 savings in a better GPU, for example by upgrading from an AMD RX 570 to an RX 580. Since the GPU makes the most difference to gaming, the end result is a system which offers far superior real world gaming performance for similar money. For those gamers who demand the best of the best, it is necessary to jump to one of the higher frequency SKUs such as the 9600K but for everyone else the i5-9400F offers unparalleled value. [Aug '19 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) November 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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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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i5-9400F $148Nvidia GTX 1660 $210Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660S (Super) $234Samsung 850 Evo 120GB $150
Intel Core i7-9700K $349Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Ultra Fit 32GB $14
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