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IntelBX80646I74790
IntelBX80662I76700
▲ 618,664 ▼

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

VS
▲ 6013,381 ▼

4 Cores, 8 Threads @3.4GHz, Skylake.
Release date: Q3 2015.

Effective Speed 
+1%
Real World Speed
Performance profile from 537,390 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: 391st / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
282,363 User Benchmarks
Best Bench: 80% Base clock 3.4 GHz, turbo 3.7 GHz (avg)
Worst Bench: 60% Base clock 3.4 GHz, turbo 3.7 GHz (avg)
Poor: 60% Great: 80%
SPEED RANK: 376th / 1468
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 59%
Gunboat
Effective Speed
Effective CPU Speed 		71.4 % 72.3 % +1%
Average Score 
+3%
Memory
Avg. Memory Latency 		82.6 Pts +2% 81.2 Pts
1-Core
Avg. Single Core Speed 		98.4 Pts 101 Pts +3%
2-Core
Avg. Dual Core Speed 		187 Pts 193 Pts +3%
4-Core
Avg. Quad Core Speed 		327 Pts 343 Pts +5%
8-Core
Avg. Octa Core Speed 		482 Pts 517 Pts Slightly faster octa-core speed.
+7%
Overclocked Score 
+2%
Memory
OC Memory Latency 		93.6 Pts +3% 91.1 Pts
1-Core
OC Single Core Speed 		109 Pts 112 Pts +3%
2-Core
OC Dual Core Speed 		214 Pts 219 Pts +2%
4-Core
OC Quad Core Speed 		377 Pts 384 Pts +2%
8-Core
OC Octa Core Speed 		551 Pts 587 Pts Slightly faster OC octa-core speed.
+7%
Value & Sentiment 
+2%
Market Share
Based on 68,928,925 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.6 % 0.73 % Higher market share.
+22%
Value
Value For Money 		91 % Slightly better value.
+6% 		85.7 %
User Rating
UBM User Rating 		61 % +2% 60 %
Price
Price (score) 		$115 Cheaper.
+23% 		$150
Nice To Haves 
+9%
Age
Newest 		126 Months 110 Months More recent.
+13%
TDP
Thermal Design Power (TDP) 		84 Watts 65 Watts More energy efficient.
+23%
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 Slightly faster base frequency.
+6% 		3.4 GHz
Turbo Clock
Turbo Clock Speed 		4 GHz 4 GHz
64-Core
OC Multi Core Speed 		556 Pts 595 Pts Slightly faster OC 64-core speed.
+7%
64-Core
Avg. Multi Core Speed 		495 Pts 534 Pts Slightly faster 64-core speed.
+8%
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
Embedded Options Available
Embedded Options Available 		No Yes
Lithography
Lithography 		22 nm 14 nm
Bus Speed
Bus Speed 		5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification 		PCG 2013D PCG 2015C (65W)
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
PCI Express Revision
PCI Express Revision 		Up to 3.0 3.0

More specs » More specs »
Conclusion 
Average Bench 71.4%
Average Bench 72.3%

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]

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