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Intel
IntelBX80646I74790
▲ 5179 ▼
  

10 Cores, 20 Threads @2.5 GHz, Ivy Bridge EP.
Release date ≤ Q2 2014.

VS
▲ 628,584 ▼

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

Effective Speed 
+7%
Real World Speed
Performance profile from 255,858 user samples
Benchmark your CPU here
831 User Benchmarks
Best Bench: 72% Base clock 2.5 GHz
Worst Bench: 57% Base clock 2.5 GHz, turbo 2.5 GHz (avg)
Poor: 57% Great: 72%
SPEED RANK: 470th / 1456
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 64%
Destroyer
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: 379th / 1456
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed 		67 % 71.4 % Slightly faster effective speed.
+7%
Average Score 
+12%
Memory
Avg. Memory Latency 		78.8 Pts 82.6 Pts +5%
1-Core
Avg. Single Core Speed 		72 Pts 98.4 Pts Much faster single-core speed.
+37%
2-Core
Avg. Dual Core Speed 		145 Pts 187 Pts Faster dual-core speed.
+29%
4-Core
Avg. Quad Core Speed 		298 Pts 327 Pts Slightly faster quad-core speed.
+10%
8-Core
Avg. Octa Core Speed 		579 Pts Faster octa-core speed.
+20% 		482 Pts
Overclocked Score 
+11%
Memory
OC Memory Latency 		86.2 Pts 93.6 Pts Slightly lower OC memory latency.
+9%
1-Core
OC Single Core Speed 		87 Pts 109 Pts Faster OC single-core speed.
+25%
2-Core
OC Dual Core Speed 		174 Pts 214 Pts Faster OC dual-core speed.
+23%
4-Core
OC Quad Core Speed 		329 Pts 377 Pts Faster OC quad-core speed.
+15%
8-Core
OC Octa Core Speed 		644 Pts Faster OC octa-core speed.
+17% 		551 Pts
Value & Sentiment 
+3,211%
Market Share
Based on 68,110,754 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.65 % Insanely higher market share.
+6,400%
User Rating
UBM User Rating 		51 % 62 % More popular.
+22%
Nice To Haves 
+57%
Age
Newest 		122+ Months 121 Months +1%
64-Core
OC Multi Core Speed 		1018 Pts Hugely faster OC 64-core speed.
+83% 		556 Pts
64-Core
Avg. Multi Core Speed 		934 Pts Hugely faster 64-core speed.
+89% 		495 Pts
Specifications 
Launch Date
Launch Date 		Q3'13 Q2'14
Cache
Cache 		25 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		AVX SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price 		$1552.00 - $1556.00 $303.00 - $312.00
Max Turbo Frequency
Max Turbo Frequency 		3.3 GHz 4 GHz
Bus Speed
Bus Speed 		8 GT/s QPI 5 GT/s DMI2
Scalability
Scalability 		2S Only 1S Only
Max Memory Size
Max Memory Size (dependent on memory type) 		768 GB 32 GB
Memory Types
Memory Types 		DDR3 800/1066/1333/1600/1866 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels
Max # of Memory Channels 		4 2
Memory Bandwidth
Max Memory Bandwidth 		59.7 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡ 		Yes No
Package Size
Package Size 		52.5mm x 45mm 37.5mm x 37.5mm
Max CPU Configuration
Max CPU Configuration 		2 1
Identity Protection Tech
Intel® Identity Protection Technology ‡ 		No Yes
PCI Express Revision
PCI Express Revision 		3.0 Up to 3.0
PCI Express Configurations
PCI Express Configurations ‡ 		x4, x8, x16 Up to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		40 16

More specs » More specs »
Conclusion 
Average Bench 67%
Average Bench 71.4%
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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]

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