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IntelBX80646I74790
IntelBX80662I76700K
▲ 618,541 ▼

4 Cores, 8 Threads @3.6GHz, Haswell.
Release date: Q2 2014.

VS
▲ 7847,150 ▼

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

Effective Speed 
+13%
Real World Speed
Performance profile from 844,005 user samples
Benchmark your CPU here
255,027 User Benchmarks
Best Bench: 80% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 58% Base clock 3.6 GHz, turbo 1.5 GHz (avg)
Poor: 58% Great: 80%
SPEED RANK: 371st / 1441
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
588,978 User Benchmarks
Best Bench: 90% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 90%
SPEED RANK: 224th / 1441
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed 		71.4 % 80.8 % Faster effective speed.
+13%
Average Score 
+19%
Memory
Avg. Memory Latency 		82.6 Pts 88.6 Pts Slightly lower memory latency.
+7%
1-Core
Avg. Single Core Speed 		98.4 Pts 119 Pts Faster single-core speed.
+21%
2-Core
Avg. Dual Core Speed 		187 Pts 224 Pts Faster dual-core speed.
+20%
4-Core
Avg. Quad Core Speed 		327 Pts 395 Pts Faster quad-core speed.
+21%
8-Core
Avg. Octa Core Speed 		482 Pts 597 Pts Faster octa-core speed.
+24%
Overclocked Score 
+19%
Memory
OC Memory Latency 		93.6 Pts 95.9 Pts +2%
1-Core
OC Single Core Speed 		109 Pts 137 Pts Faster OC single-core speed.
+26%
2-Core
OC Dual Core Speed 		214 Pts 258 Pts Faster OC dual-core speed.
+21%
4-Core
OC Quad Core Speed 		377 Pts 459 Pts Faster OC quad-core speed.
+22%
8-Core
OC Octa Core Speed 		551 Pts 696 Pts Faster OC octa-core speed.
+26%
Value & Sentiment 
+13%
Market Share
Based on 67,708,312 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.81 % 1.16 % Much higher market share.
+43%
Value
Value For Money 		87.1 % 91.1 % +5%
User Rating
UBM User Rating 		61 % 78 % More popular.
+28%
Price
Price (score) 		$135 Cheaper.
+25% 		$180
Nice To Haves 
+12%
Age
Newest 		119 Months 104 Months More recent.
+13%
TDP
Thermal Design Power (TDP) 		84 Watts Slightly more energy efficient.
+8% 		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 		3.6 GHz 4 GHz Faster base frequency.
+11%
Turbo Clock
Turbo Clock Speed 		4 GHz 4.2 GHz +5%
64-Core
OC Multi Core Speed 		556 Pts 716 Pts Faster OC 64-core speed.
+29%
64-Core
Avg. Multi Core Speed 		495 Pts 612 Pts Faster 64-core speed.
+24%
Specifications 
Series
CPU Architecture 		Haswell Skylake
Socket
Motherboard Socket 		FCLGA1150 FCLGA1151
Graphics
Integrated Graphics 		HD 4600 HD 530
Launch Date
Launch Date 		Q2'14 Q3'15
Lithography
Lithography 		22 nm 14 nm
Recommended Price
Recommended Customer Price 		$303.00 - $312.00 $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency 		4 GHz 4.2 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 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth 		25.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 4600 Intel® HD Graphics 530
Graphics Output
Graphics Output 		eDP/DP/HDMI/DVI/VGA eDP/DP/HDMI/DVI
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.2 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		2 GB 64 GB
Graphics and IMC Lithography
Graphics and IMC Lithography 		22 nm 14 nm
TSX-NI
Intel® TSX-NI 		No Yes
vPro Tech
Intel® vPro™ Technology ‡ 		Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP) 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No
PCI Express Revision
PCI Express Revision 		Up to 3.0 3.0

More specs » More specs »
Conclusion 
Average Bench 71.4%
Average Bench 80.8%
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The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

MORE DETAILS

The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

MORE DETAILS

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