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IntelBX80646I74790K
$348
IntelBX80677I77700K
▲ 8841,572 ▼
 $348 

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

VS
▲ 8351,395 ▼

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Effective Speed 
+7%
Real World Speed
Performance profile from 1,168,058 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
712,312 User Benchmarks
Best Bench: 92% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 71% Base clock 4.2 GHz, turbo 0.2 GHz (avg)
Poor: 71% Great: 92%
SPEED RANK: 188th / 1442
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed 		78.9 % 84.2 % Slightly faster effective speed.
+7%
Average Score 
+11%
Memory
Avg. Memory Latency 		88.1 Pts 89.6 Pts +2%
1-Core
Avg. Single Core Speed 		114 Pts 127 Pts Faster single-core speed.
+11%
2-Core
Avg. Dual Core Speed 		216 Pts 242 Pts Faster dual-core speed.
+12%
4-Core
Avg. Quad Core Speed 		378 Pts 426 Pts Faster quad-core speed.
+13%
8-Core
Avg. Octa Core Speed 		560 Pts 647 Pts Faster octa-core speed.
+16%
Overclocked Score 
+9%
Memory
OC Memory Latency 		96.8 Pts +0% 96.5 Pts
1-Core
OC Single Core Speed 		128 Pts 142 Pts Faster OC single-core speed.
+11%
2-Core
OC Dual Core Speed 		248 Pts 275 Pts Faster OC dual-core speed.
+11%
4-Core
OC Quad Core Speed 		433 Pts 482 Pts Faster OC quad-core speed.
+11%
8-Core
OC Octa Core Speed 		643 Pts 737 Pts Faster OC octa-core speed.
+15%
Value & Sentiment 
+29%
Market Share
Based on 67,712,926 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.56 % 1 % Much higher market share.
+79%
Value
Value For Money 		74.2 % 86.7 % Better value.
+17%
User Rating
UBM User Rating 		88 % Slightly more popular.
+6% 		83 %
Price
Price (score) 		$348 $250 Cheaper.
+28%
Nice To Haves 
+11%
Age
Newest 		118 Months 87 Months More recent.
+26%
TDP
Thermal Design Power (TDP) 		88 Watts +3% 91 Watts
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		8 threads 8 threads
Lithography
Manufacturing process 		22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed 		4 GHz 4.2 GHz +5%
Turbo Clock
Turbo Clock Speed 		4.4 GHz 4.5 GHz +2%
64-Core
OC Multi Core Speed 		654 Pts 747 Pts Faster OC 64-core speed.
+14%
64-Core
Avg. Multi Core Speed 		573 Pts 662 Pts Faster 64-core speed.
+16%
Specifications 
Series
CPU Architecture 		Haswell Kaby Lake
Socket
Motherboard Socket 		FCLGA1150 FCLGA1151
Graphics
Integrated Graphics 		HD 4600 HD 630
Launch Date
Launch Date 		Q2'14 Q1'17
Cache
Cache 		8 MB SmartCache 8 MB
Lithography
Lithography 		22 nm 14 nm
Max Turbo Frequency
Max Turbo Frequency 		4.4 GHz 4.50 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 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 4600 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency 		350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.25 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		2 GB 64 GB
TSX-NI
Intel® TSX-NI 		No Yes

More specs » More specs »
Conclusion 
Average Bench 78.9%
Average Bench 84.2%
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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

The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

MORE DETAILS

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 Frequently Asked Questions

Processors FAQ
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