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IntelBX80671I76800K
IntelBX80646I74790K
$348
▲ 659,588 ▼

6 Cores, 12 Threads @3.4GHz, Broadwell-E.
Release date: Q2 2016.

VS
▲ 8841,572 ▼
 $348 

4 Cores, 8 Threads @4.0GHz, Haswell.
Release date: Q2 2014.

Effective Speed 
+2%
Real World Speed
Performance profile from 505,942 user samples
Benchmark your CPU here
50,196 User Benchmarks
Best Bench: 90% Base clock 3.4 GHz, turbo 4.1 GHz (avg)
Worst Bench: 71% Base clock 3.4 GHz, turbo 1.2 GHz (avg)
Poor: 71% Great: 90%
SPEED RANK: 221st / 1442
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 82%
Aircraft carrier
Workstation
Workstation 71%
Battleship
455,746 User Benchmarks
Best Bench: 87% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.7 GHz (avg)
Poor: 67% Great: 87%
SPEED RANK: 251st / 1442
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed 		80.9 % +2% 78.9 %
Average Score 
+3%
Memory
Avg. Memory Latency 		86 Pts 88.1 Pts +2%
1-Core
Avg. Single Core Speed 		107 Pts 114 Pts Slightly faster single-core speed.
+7%
2-Core
Avg. Dual Core Speed 		214 Pts 216 Pts +1%
4-Core
Avg. Quad Core Speed 		408 Pts Slightly faster quad-core speed.
+8% 		378 Pts
8-Core
Avg. Octa Core Speed 		660 Pts Faster octa-core speed.
+18% 		560 Pts
Overclocked Score 
+5%
Memory
OC Memory Latency 		94.9 Pts 96.8 Pts +2%
1-Core
OC Single Core Speed 		124 Pts 128 Pts +3%
2-Core
OC Dual Core Speed 		248 Pts 248 Pts
4-Core
OC Quad Core Speed 		483 Pts Faster OC quad-core speed.
+12% 		433 Pts
8-Core
OC Octa Core Speed 		770 Pts Faster OC octa-core speed.
+20% 		643 Pts
Value & Sentiment 
+111%
Market Share
Based on 67,711,361 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.09 % 0.56 % Hugely higher market share.
+522%
Value
Value For Money 		106 % Much better value.
+43% 		74.2 %
User Rating
UBM User Rating 		65 % 88 % Much more popular.
+35%
Price
Price (score) 		$103 Much cheaper.
+70% 		$348
Nice To Haves 
+20%
Age
Newest 		94 Months More recent.
+20% 		118 Months
TDP
Thermal Design Power (TDP) 		140 Watts 88 Watts Much more energy efficient.
+37%
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		12 threads Much higher thread count.
+50% 		8 threads
Lithography
Manufacturing process 		14 nm Much newer manufacturing.
+36% 		22 nm
Base Clock
Base Clock Speed 		3.4 GHz 4 GHz Faster base frequency.
+18%
Turbo Clock
Turbo Clock Speed 		3.8 GHz 4.4 GHz Faster turbo frequency.
+16%
64-Core
OC Multi Core Speed 		956 Pts Much faster OC 64-core speed.
+46% 		654 Pts
64-Core
Avg. Multi Core Speed 		827 Pts Much faster 64-core speed.
+44% 		573 Pts
Specifications 
Series
CPU Architecture 		Broadwell-E Haswell
Socket
Motherboard Socket 		LGA2011-V3 FCLGA1150
Graphics
Integrated Graphics 		None HD 4600
Launch Date
Launch Date 		Q2'16 Q2'14
Cache
Cache 		15 MB 8 MB SmartCache
Lithography
Lithography 		14 nm 22 nm
Recommended Price
Recommended Customer Price 		N/A $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency 		3.8 GHz 4.4 GHz
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 32 GB
Memory Types
Memory Types 		DDR4 2400/2133 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels
Max # of Memory Channels 		4 2
Processor Graphics
Processor Graphics ‡ 		None Intel® HD Graphics 4600
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		28 16

More specs » More specs »
Conclusion 
Average Bench 80.9%
Average Bench 78.9%
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The Core i7-6800K is the weakest of four new 14 nm Broadwell-E prosumer CPUs. This model has six cores with base and turbo frequencies of 3.4 and 3.8 GHz, a TDP of 140 watts and 28 PCIe 3.0 lanes. The 6800K closely matches, and supersedes, the very popular Haswell-E 5820K. Because of its MSRP of around $500, this CPU only makes sense for niche use cases which include graphics design, video production or multi GPU gaming. Comparing the 6800K and 6700K shows that for typical desktop use, at stock clocks, the 6800K actually lags the 6700K by around 10%. This is because desktop computing largely depends on single core performance and the Skylake i7-6700K is both clocked higher (Base clock 4.0 GHz vs 3.4 GHz) and has higher IPC due to its one generation lead over the 6800K. If the 6800K proves to be a capable overclocker then it may challenge the 6700K on a range of core-heavy use cases, time will tell. [Jun '16 CPUPro]

MORE DETAILS

The Intel Core i7-4790K, codenamed Devil's Canyon, is an upgraded 4770K, Intel's current flagship i7. The 4790K features an improved thermal interface which enables it to dissipate heat more efficiently than the 4770K. Comparing the 4770K and 4790K shows that stock performance has improved by 13% which is consistent with the base clock jump from 3.5 GHz to 4.0 GHz. OC performance remains unchanged. Comparing the 4790K and 4790 shows that at stock clocks the 4790K is around 16% faster which considering the small price difference makes the 4790K a far better choice. Previously Intel targeted the unlocked K versions at overclockers but with Devil's Canyon they have included VT-d on the K chip and this time it's squarely aimed at both power users and overclockers alike. Until the release of Broadwell in six months, the 4790K is the high end CPU of choice. [Jul '14 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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