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IntelBX80662I76700K
IntelBX80684I58600K
▲ 7847,150 ▼

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

VS
▲ 785,091 ▼

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

Effective Speed 
+12%
Real World Speed
Performance profile from 853,815 user samples
Benchmark your CPU here
588,978 User Benchmarks
Best Bench: 90% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 90%
SPEED RANK: 224th / 1441
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
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 / 1441
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 74%
Battleship
Effective Speed
Effective CPU Speed 		80.8 % 90.7 % Faster effective speed.
+12%
Average Score 
+12%
Memory
Avg. Memory Latency 		88.6 Pts 90.1 Pts +2%
1-Core
Avg. Single Core Speed 		119 Pts 129 Pts Slightly faster single-core speed.
+8%
2-Core
Avg. Dual Core Speed 		224 Pts 257 Pts Faster dual-core speed.
+15%
4-Core
Avg. Quad Core Speed 		395 Pts 502 Pts Faster quad-core speed.
+27%
8-Core
Avg. Octa Core Speed 		597 Pts 656 Pts Slightly faster octa-core speed.
+10%
Overclocked Score 
+14%
Memory
OC Memory Latency 		95.9 Pts 96.5 Pts +1%
1-Core
OC Single Core Speed 		137 Pts 151 Pts Faster OC single-core speed.
+10%
2-Core
OC Dual Core Speed 		258 Pts 302 Pts Faster OC dual-core speed.
+17%
4-Core
OC Quad Core Speed 		459 Pts 594 Pts Faster OC quad-core speed.
+29%
8-Core
OC Octa Core Speed 		696 Pts 798 Pts Faster OC octa-core speed.
+15%
Value & Sentiment 
+31%
Market Share
Based on 67,705,978 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.26 % Hugely higher market share.
+142% 		0.52 %
Value
Value For Money 		91.1 % 103 % Better value.
+13%
User Rating
UBM User Rating 		78 % 78 %
Price
Price (score) 		$180 $173 +4%
Nice To Haves 
+6%
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 		8 threads Much higher thread count.
+33% 		6 threads
Lithography
Manufacturing process 		14 nm 14 nm
Base Clock
Base Clock Speed 		4 GHz Faster base frequency.
+11% 		3.6 GHz
Turbo Clock
Turbo Clock Speed 		4.2 GHz 4.3 GHz +2%
64-Core
OC Multi Core Speed 		716 Pts 828 Pts Faster OC 64-core speed.
+16%
64-Core
Avg. Multi Core Speed 		612 Pts 681 Pts Faster 64-core speed.
+11%
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 		8 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 		$339.00 - $350.00 N/A
Max Turbo Frequency
Max Turbo Frequency 		4.2 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
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
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 80.8%
Average Bench 90.7%
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The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [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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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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
The Best.
CPUGPUSSD
Intel Core i5-13600K $275Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair 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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