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Intel
IntelBX80646I74790
▲ 5031 ▼
  

4 Cores, 8 Threads @3.06 GHz, Westmere EP.
Release date ≈ Q1 2015.

VS
▲ 618,670 ▼

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

Effective Speed 
+1%
Real World Speed
Performance profile from 255,392 user samples
Benchmark your CPU here
365 User Benchmarks
Best Bench: 76% Base clock 4.3 GHz, turbo 4.3 GHz (avg)
Worst Bench: 64% Base clock 3.05 GHz, turbo 3.2 GHz (avg)
Poor: 64% Great: 76%
SPEED RANK: 405th / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 54%
Yacht
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
Effective Speed
Effective CPU Speed 		70.8 % 71.4 % +1%
Average Score 
+16%
Memory
Avg. Memory Latency 		90.5 Pts Slightly lower memory latency.
+10% 		82.6 Pts
1-Core
Avg. Single Core Speed 		79.8 Pts 98.4 Pts Faster single-core speed.
+23%
2-Core
Avg. Dual Core Speed 		158 Pts 187 Pts Faster dual-core speed.
+18%
4-Core
Avg. Quad Core Speed 		286 Pts 327 Pts Faster quad-core speed.
+14%
8-Core
Avg. Octa Core Speed 		362 Pts 482 Pts Much faster octa-core speed.
+33%
Overclocked Score 
+18%
Memory
OC Memory Latency 		94.4 Pts +1% 93.6 Pts
1-Core
OC Single Core Speed 		86.7 Pts 109 Pts Faster OC single-core speed.
+26%
2-Core
OC Dual Core Speed 		172 Pts 214 Pts Faster OC dual-core speed.
+24%
4-Core
OC Quad Core Speed 		335 Pts 377 Pts Faster OC quad-core speed.
+13%
8-Core
OC Octa Core Speed 		422 Pts 551 Pts Much faster OC octa-core speed.
+31%
Value & Sentiment 
+∞%
Market Share
Based on 69,002,745 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.65 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		50 % 61 % More popular.
+22%
Nice To Haves 
+20%
Age
Newest 		117+ Months Slightly more recent.
+7% 		126 Months
64-Core
OC Multi Core Speed 		423 Pts 556 Pts Much faster OC 64-core speed.
+31%
64-Core
Avg. Multi Core Speed 		364 Pts 495 Pts Much faster 64-core speed.
+36%
Specifications 
Launch Date
Launch Date 		Q1'10 Q2'14
Cache
Cache 		12 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography 		32 nm 22 nm
Recommended Price
Recommended Customer Price 		$1440.00 $303.00 - $312.00
Max Turbo Frequency
Max Turbo Frequency 		3.46 GHz 4 GHz
Bus Speed
Bus Speed 		6.4 GT/s QPI 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type) 		288 GB 32 GB
Memory Types
Memory Types 		DDR3 800/1066/1333 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels
Max # of Memory Channels 		3 2
Memory Bandwidth
Max Memory Bandwidth 		32 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡ 		Yes No
Package Size
Package Size 		42.5mm X 45mm 37.5mm x 37.5mm
Max CPU Configuration
Max CPU Configuration 		2 1
Thermal Monitoring Technologies
Thermal Monitoring Technologies 		No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		1.0 2.0

More specs » More specs »
Conclusion 
Average Bench 70.8%
Average Bench 71.4%

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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