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IntelBX80662I56600K
IntelBX80673I77820X
▲ 7428,938 ▼

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

VS
▲ 631,512 ▼

8 Cores, 16 Threads @3.6GHz, Skylake-X.
Release date: Q2 2017.

Effective Speed 
+11%
Real World Speed
Performance profile from 370,768 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
28,524 User Benchmarks
Best Bench: 92% Base clock 3.6 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 3.6 GHz, turbo 3.85 GHz (avg)
Poor: 70% Great: 92%
SPEED RANK: 233rd / 1442
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 81%
Aircraft carrier
Effective Speed
Effective CPU Speed 		72.4 % 80.1 % Faster effective speed.
+11%
Average Score 
+32%
Memory
Avg. Memory Latency 		83.3 Pts Lower memory latency.
+10% 		75.5 Pts
1-Core
Avg. Single Core Speed 		110 Pts 121 Pts Slightly faster single-core speed.
+10%
2-Core
Avg. Dual Core Speed 		218 Pts 238 Pts Slightly faster dual-core speed.
+9%
4-Core
Avg. Quad Core Speed 		352 Pts 455 Pts Faster quad-core speed.
+29%
8-Core
Avg. Octa Core Speed 		373 Pts 822 Pts Hugely faster octa-core speed.
+120%
Overclocked Score 
+23%
Memory
OC Memory Latency 		95.2 Pts Lower OC memory latency.
+12% 		85 Pts
1-Core
OC Single Core Speed 		136 Pts 138 Pts +1%
2-Core
OC Dual Core Speed 		269 Pts 272 Pts +1%
4-Core
OC Quad Core Speed 		455 Pts 533 Pts Faster OC quad-core speed.
+17%
8-Core
OC Octa Core Speed 		476 Pts 976 Pts Hugely faster OC octa-core speed.
+105%
Value & Sentiment 
+200%
Market Share
Based on 67,713,539 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.46 % Hugely higher market share.
+667% 		0.06 %
Value
Value For Money 		102 % Much better value.
+38% 		73.8 %
User Rating
UBM User Rating 		74 % More popular.
+17% 		63 %
Price
Price (score) 		$81 Much cheaper.
+78% 		$375
Nice To Haves 
+93%
Age
Newest 		104 Months 81 Months More recent.
+22%
TDP
Thermal Design Power (TDP) 		91 Watts Much more energy efficient.
+35% 		140 Watts
Cores
CPU Processing Cores 		4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads 		4 threads 16 threads Hugely higher thread count.
+300%
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 4.5 GHz Faster turbo frequency.
+15%
64-Core
OC Multi Core Speed 		484 Pts 1445 Pts Hugely faster OC 64-core speed.
+199%
64-Core
Avg. Multi Core Speed 		378 Pts 1263 Pts Hugely faster 64-core speed.
+234%
Specifications 
Series
CPU Architecture 		Skylake Skylake-X
Socket
Motherboard Socket 		FCLGA1151 LGA2066
Graphics
Integrated Graphics 		HD 530 None
Launch Date
Launch Date 		Q3'15 Q2'17
Cache
Cache 		6 MB SmartCache 11 MB L3
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX 2.0, AVX-512
Recommended Price
Recommended Customer Price 		$242.00 - $243.00 $589.00 - $599.00
Max Turbo Frequency
Max Turbo Frequency 		3.9 GHz 4.30 GHz
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015D (130W) PCG 2017X
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 Channels
Max # of Memory Channels 		2 4
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		No Yes
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		16 28

More specs » More specs »
Conclusion 
Average Bench 72.4%
Average Bench 80.1%
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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 I7-7820X is the second of three new Skylake-X HEDT (high end desktop processors) released by Intel as part of their core X series (the others being the flagship 10-core i9-7900X and the 6-core i7-7800X). The 7820X is an 8-core, 16-thread CPU which will amply satisfy all but the heaviest of multi-threaded use cases. The 7820X requires a relatively expensive X299 (Basin Falls) motherboard, which costs upwards of $250. The 7820X is listed at $599 which is about $200 more than AMD's current flagship 8-core, 16 thread Ryzen 7 1800X. In addition to better IPC, the 7820X is higher clocked with base and max boost clocks of 3.6/4.5 GHz respectively, compared to 3.6G/4.0 GHz for the Ryzen 7 1800X. The additional $200 (50%) buys you around 20% more performance in both single and multi core workloads. Intel have also released several Kabylake-X HEDT CPUs: the 4-thread i5-7640X and the 8-thread i7-7740X and will shortly release of even higher spec Skylake-X processors. It's probably wise to hold off purchasing until the eagerly anticipated 16-core, 32-thread Ryzen Threadripper CPUs are launched later this month. [Jul '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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The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia 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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