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IntelBX80662I56600K
IntelBX80684I58600K
▲ 7428,939 ▼

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

VS
▲ 785,093 ▼

6 Cores, 6 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

Effective Speed 
+25%
Real World Speed
Performance profile from 607,081 user samples
Benchmark your CPU here
342,244 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 57% Great: 85%
SPEED RANK: 355th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
264,837 User Benchmarks
Best Bench: 101% Base clock 3.6 GHz, turbo 4.95 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 79% Great: 101%
SPEED RANK: 136th / 1442
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 74%
Battleship
Effective Speed
Effective CPU Speed 		72.4 % 90.7 % Faster effective speed.
+25%
Average Score 
+32%
Memory
Avg. Memory Latency 		83.3 Pts 90.1 Pts Slightly lower memory latency.
+8%
1-Core
Avg. Single Core Speed 		110 Pts 129 Pts Faster single-core speed.
+17%
2-Core
Avg. Dual Core Speed 		218 Pts 257 Pts Faster dual-core speed.
+18%
4-Core
Avg. Quad Core Speed 		352 Pts 502 Pts Much faster quad-core speed.
+43%
8-Core
Avg. Octa Core Speed 		373 Pts 656 Pts Much faster octa-core speed.
+76%
Overclocked Score 
+25%
Memory
OC Memory Latency 		95.2 Pts 96.5 Pts +1%
1-Core
OC Single Core Speed 		136 Pts 151 Pts Faster OC single-core speed.
+11%
2-Core
OC Dual Core Speed 		269 Pts 302 Pts Faster OC dual-core speed.
+12%
4-Core
OC Quad Core Speed 		455 Pts 594 Pts Much faster OC quad-core speed.
+31%
8-Core
OC Octa Core Speed 		476 Pts 798 Pts Much faster OC octa-core speed.
+68%
Value & Sentiment 
+11%
Market Share
Based on 67,749,437 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.48 % 0.49 % +2%
Value
Value For Money 		102 % 103 % +2%
User Rating
UBM User Rating 		74 % 78 % Slightly more popular.
+5%
Price
Price (score) 		$81 Much cheaper.
+53% 		$173
Nice To Haves 
+32%
Age
Newest 		104 Months 78 Months More recent.
+25%
TDP
Thermal Design Power (TDP) 		91 Watts +4% 95 Watts
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 3.6 GHz +3%
Turbo Clock
Turbo Clock Speed 		3.9 GHz 4.3 GHz Faster turbo frequency.
+10%
64-Core
OC Multi Core Speed 		484 Pts 828 Pts Much faster OC 64-core speed.
+71%
64-Core
Avg. Multi Core Speed 		378 Pts 681 Pts Hugely faster 64-core speed.
+80%
Specifications 
Series
CPU Architecture 		Skylake Coffee Lake
Socket
Motherboard Socket 		FCLGA1151 FCLGA1151
Graphics
Integrated Graphics 		HD 530 UHD 630
Launch Date
Launch Date 		Q3'15 Q4'17
Cache
Cache 		6 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price 		$242.00 - $243.00 N/A
Max Turbo Frequency
Max Turbo Frequency 		3.9 GHz 4.30 GHz
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015D (130W) PCG 2015C (130W)
Memory Types
Memory Types 		DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2666
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 530 Intel® UHD Graphics 630
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, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
Conclusion 
Average Bench 72.4%
Average Bench 90.7%
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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

The unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. [Oct '17 CPUPro]

MORE DETAILS

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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