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IntelBX80684I78086K
IntelBX80646I74790K
$348
▲ 55798 ▼

6 Cores, 12 Threads @4.00 GHz, Coffee Lake.
Release date ≈ Q2 2018.

VS
▲ 8841,779 ▼
 $348 

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

Effective Speed 
+15%
Real World Speed
Performance profile from 493,832 user samples
Benchmark your CPU here
38,086 User Benchmarks
Best Bench: 102% Base clock 4 GHz, turbo 5.15 GHz (avg)
Worst Bench: 81% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 81% Great: 102%
SPEED RANK: 153rd / 1468
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
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: 270th / 1468
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed 		90.8 % Faster effective speed.
+15% 		78.9 %
Average Score 
+22%
Memory
Avg. Memory Latency 		91.6 Pts +4% 88.1 Pts
1-Core
Avg. Single Core Speed 		132 Pts Faster single-core speed.
+16% 		114 Pts
2-Core
Avg. Dual Core Speed 		256 Pts Faster dual-core speed.
+19% 		216 Pts
4-Core
Avg. Quad Core Speed 		484 Pts Faster quad-core speed.
+28% 		378 Pts
8-Core
Avg. Octa Core Speed 		800 Pts Much faster octa-core speed.
+43% 		560 Pts
Overclocked Score 
+25%
Memory
OC Memory Latency 		97 Pts +0% 96.8 Pts
1-Core
OC Single Core Speed 		153 Pts Faster OC single-core speed.
+20% 		128 Pts
2-Core
OC Dual Core Speed 		304 Pts Faster OC dual-core speed.
+23% 		248 Pts
4-Core
OC Quad Core Speed 		580 Pts Much faster OC quad-core speed.
+34% 		433 Pts
8-Core
OC Octa Core Speed 		948 Pts Much faster OC octa-core speed.
+47% 		643 Pts
Value & Sentiment 
+103%
Market Share
Based on 69,041,522 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.14 % 0.63 % Hugely higher market share.
+350%
Value
Value For Money 		82.2 % Better value.
+11% 		74.2 %
User Rating
UBM User Rating 		55 % 88 % Much more popular.
+60%
Price
Price (score) 		$399 $348 Cheaper.
+13%
Nice To Haves 
+66%
Age
Newest 		77+ Months Much more recent.
+38% 		125 Months
64-Core
OC Multi Core Speed 		1,194 Pts Hugely faster OC 64-core speed.
+83% 		654 Pts
64-Core
Avg. Multi Core Speed 		1,008 Pts Much faster 64-core speed.
+76% 		573 Pts
Specifications 
Launch Date
Launch Date 		Q2'18 Q2'14
Cache
Cache 		12 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography 		14 nm 22 nm
Recommended Price
Recommended Customer Price 		N/A $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency 		5.00 GHz 4.4 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015D (130W) PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4-2666 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth 		41.6 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® UHD Graphics 630 Intel® HD Graphics 4600
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.20 GHz 1.25 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		64 GB 2 GB
TSX-NI
Intel® TSX-NI 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No

More specs » More specs »
Conclusion 
Average Bench 90.8%
Average Bench 78.9%

Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a TDP of 95W. Essentially, the 8086K is Intel’s current Coffee Lake flagship, the i7-8700K, with a single-core turbo frequency factory overclocked by 300 MHz. Thermals permitting, out of the box, the i7-8086K achieves a single core boost speed of 5.0 GHz – which is a new record for Intel. That said, you would be unlucky if you were unable to achieve a 5.0 GHz single core OC with an 8700K. For everything other than single core, the turbo clock speeds on the 8086K exactly match the 8700K which puts the 8086K firmly into gimmick territory. Directly comparing the 8086K and 8700K shows that for a $100 (24%) price premium you get around a 5% performance improvement which drops to around 2% when both chips are overclocked. If the price gap between the 8086K and the 8700K were to fall to less than 20 USD it may be worth considering the 8086K. [Jun '18 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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