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IntelBX80646I74790K
$348
IntelBX80684I78086K
▲ 8841,573 ▼
 $348 

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

VS
▲ 55793 ▼

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

Effective Speed 
+15%
Real World Speed
Performance profile from 493,832 user samples
Benchmark your CPU here
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
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: 135th / 1442
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
Effective Speed
Effective CPU Speed 		78.9 % 90.8 % Faster effective speed.
+15%
Average Score 
+22%
Memory
Avg. Memory Latency 		88.1 Pts 91.6 Pts +4%
1-Core
Avg. Single Core Speed 		114 Pts 132 Pts Faster single-core speed.
+16%
2-Core
Avg. Dual Core Speed 		216 Pts 256 Pts Faster dual-core speed.
+19%
4-Core
Avg. Quad Core Speed 		378 Pts 484 Pts Faster quad-core speed.
+28%
8-Core
Avg. Octa Core Speed 		560 Pts 800 Pts Much faster octa-core speed.
+43%
Overclocked Score 
+25%
Memory
OC Memory Latency 		96.8 Pts 97 Pts +0%
1-Core
OC Single Core Speed 		128 Pts 153 Pts Faster OC single-core speed.
+20%
2-Core
OC Dual Core Speed 		248 Pts 304 Pts Faster OC dual-core speed.
+23%
4-Core
OC Quad Core Speed 		433 Pts 580 Pts Much faster OC quad-core speed.
+34%
8-Core
OC Octa Core Speed 		643 Pts 948 Pts Much faster OC octa-core speed.
+47%
Value & Sentiment 
+270%
Market Share
Based on 67,714,956 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.56 % Insanely higher market share.
+1,020% 		0.05 %
Value
Value For Money 		74.2 % 82.3 % Better value.
+11%
User Rating
UBM User Rating 		88 % Much more popular.
+60% 		55 %
Price
Price (score) 		$348 Cheaper.
+13% 		$399
Nice To Haves 
+66%
Age
Newest 		118 Months 70+ Months Much more recent.
+41%
64-Core
OC Multi Core Speed 		654 Pts 1194 Pts Hugely faster OC 64-core speed.
+83%
64-Core
Avg. Multi Core Speed 		573 Pts 1008 Pts Much faster 64-core speed.
+76%
Specifications 
Launch Date
Launch Date 		Q2'14 Q2'18
Cache
Cache 		8 MB SmartCache 12 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Lithography
Lithography 		22 nm 14 nm
Recommended Price
Recommended Customer Price 		$339.00 - $350.00 N/A
Max Turbo Frequency
Max Turbo Frequency 		4.4 GHz 5.00 GHz
Bus Speed
Bus Speed 		5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification 		PCG 2013D PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type) 		32 GB 64 GB
Memory Types
Memory Types 		DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-2666
Memory Bandwidth
Max Memory Bandwidth 		25.6 GB/s 41.6 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 4600 Intel® UHD Graphics 630
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.25 GHz 1.20 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		2 GB 64 GB
TSX-NI
Intel® TSX-NI 		No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		No Yes

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

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

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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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