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Intel
IntelBX80646I74771
▲ 55458 ▼
  

6 Cores, 12 Threads @3.46 GHz, Westmere EP.
Release date ≈ Q4 2014.

VS
▲ 54747 ▼

4 Cores, 8 Threads @3.5GHz, Haswell.
Release date: Q2 2013.

Effective Speed 
+2%
Real World Speed
Performance profile from 16,053 user samples
Benchmark your CPU here
4,873 User Benchmarks
Best Bench: 85% Base clock 4.6 GHz, turbo 4.6 GHz (avg)
Worst Bench: 64% Base clock 3.45 GHz, turbo 3.55 GHz (avg)
Poor: 64% Great: 85%
SPEED RANK: 327th / 1468
Gaming
Gaming 75%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 62%
Destroyer
11,180 User Benchmarks
Best Bench: 82% Base clock 3.5 GHz, turbo 3.7 GHz (avg)
Worst Bench: 60% Base clock 3.5 GHz, turbo 0.9 GHz (avg)
Poor: 60% Great: 82%
SPEED RANK: 347th / 1468
Gaming
Gaming 73%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 60%
Gunboat
Effective Speed
Effective CPU Speed 		74.7 % +2% 73.5 %
Average Score 
+4%
Memory
Avg. Memory Latency 		87.9 Pts +4% 84.2 Pts
1-Core
Avg. Single Core Speed 		87.7 Pts 101 Pts Faster single-core speed.
+15%
2-Core
Avg. Dual Core Speed 		174 Pts 193 Pts Faster dual-core speed.
+11%
4-Core
Avg. Quad Core Speed 		334 Pts 340 Pts +2%
8-Core
Avg. Octa Core Speed 		518 Pts +1% 512 Pts
Overclocked Score 
+1%
Memory
OC Memory Latency 		95.5 Pts +2% 93.9 Pts
1-Core
OC Single Core Speed 		105 Pts 111 Pts Slightly faster OC single-core speed.
+6%
2-Core
OC Dual Core Speed 		210 Pts 220 Pts +5%
4-Core
OC Quad Core Speed 		413 Pts +2% 406 Pts
8-Core
OC Octa Core Speed 		637 Pts Faster OC octa-core speed.
+12% 		571 Pts
Value & Sentiment 
+1%
Market Share
Based on 69,001,564 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.03 % 0.03 %
User Rating
UBM User Rating 		55 % +2% 54 %
Nice To Haves 
+21%
Age
Newest 		120+ Months More recent.
+12% 		137 Months
64-Core
OC Multi Core Speed 		762 Pts Much faster OC 64-core speed.
+33% 		573 Pts
64-Core
Avg. Multi Core Speed 		618 Pts Faster 64-core speed.
+19% 		519 Pts
Specifications 
Launch Date
Launch Date 		Q1'11 Q3'13
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 		$1663.00 - $1666.00 $314.00 - $320.00
Max Turbo Frequency
Max Turbo Frequency 		3.73 GHz 3.9 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 74.7%
Average Bench 73.5%

I have two Dell T3500 systems. One for gaming and the other to stream my games. The streaming system is running Manjaro Linux and it rocks. [May '20 Bluecheese]

MORE DETAILS

The Intel i7-4771 is the same as the i7-4770 apart from a 100 MHz increase in base clock from 3.4 GHz to 3.5 GHz. In theory this increase will only impact multi-core workloads because both processors have the same turbo clock of 3.9 GHz which should be engaged during single and dual core workloads. On multi-core workloads the turbo needs to be disabled in order to maintain acceptable core temperatures and operating frequencies drop to base clock where the i7-4771 has a marginal 100 MHz or 2.9% advantage. In other words the two processors should be largely identical. Looking at the i7-4770 vs the i7-4771 benchmarks verifies this. Both the 4770 and 4771 are the current top end mainstream market leaders but for the vast majority of desktop users they are probably overkill as typical consumer use rarely requires more than two cores. [Mar '14 CPUPro]

MORE DETAILS

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