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IntelBX80646I74771
IntelBX80646I54440
▲ 54741 ▼

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

VS
▲ 542,688 ▼

4 Cores, 4 Threads @3.1GHz, Haswell.
Release date: Q3 2013.

Effective Speed 
+20%
Real World Speed
Performance profile from 92,291 user samples
Benchmark your CPU here
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: 328th / 1441
Gaming
Gaming 73%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 60%
Gunboat
81,111 User Benchmarks
Best Bench: 70% Base clock 3.1 GHz, turbo 3.1 GHz (avg)
Worst Bench: 45% Base clock 3.1 GHz, turbo 3.1 GHz (avg)
Poor: 45% Great: 70%
SPEED RANK: 559th / 1441
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 45%
Yacht
Effective Speed
Effective CPU Speed 		73.5 % Faster effective speed.
+20% 		61.3 %
Average Score 
+35%
Memory
Avg. Memory Latency 		84.2 Pts Slightly lower memory latency.
+8% 		78.2 Pts
1-Core
Avg. Single Core Speed 		101 Pts Faster single-core speed.
+25% 		80.8 Pts
2-Core
Avg. Dual Core Speed 		193 Pts Faster dual-core speed.
+21% 		159 Pts
4-Core
Avg. Quad Core Speed 		340 Pts Much faster quad-core speed.
+32% 		257 Pts
8-Core
Avg. Octa Core Speed 		512 Pts Hugely faster octa-core speed.
+89% 		271 Pts
Overclocked Score 
+32%
Memory
OC Memory Latency 		93.9 Pts +3% 91.1 Pts
1-Core
OC Single Core Speed 		111 Pts Faster OC single-core speed.
+24% 		89.5 Pts
2-Core
OC Dual Core Speed 		220 Pts Faster OC dual-core speed.
+26% 		175 Pts
4-Core
OC Quad Core Speed 		406 Pts Faster OC quad-core speed.
+29% 		315 Pts
8-Core
OC Octa Core Speed 		571 Pts Much faster OC octa-core speed.
+78% 		320 Pts
Value & Sentiment 
+120%
Market Share
Based on 67,706,454 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.12 % Hugely higher market share.
+500%
Value
Value For Money 		90.8 % Better value.
+20% 		75.9 %
User Rating
UBM User Rating 		54 % 54 %
Price
Price (score) 		$129 $128 +1%
Nice To Haves 
+33%
Age
Newest 		130 Months 127 Months +2%
TDP
Thermal Design Power (TDP) 		84 Watts 84 Watts
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		8 threads Hugely higher thread count.
+100% 		4 threads
Lithography
Manufacturing process 		22 nm 22 nm
Base Clock
Base Clock Speed 		3.5 GHz Faster base frequency.
+13% 		3.1 GHz
Turbo Clock
Turbo Clock Speed 		3.9 GHz Faster turbo frequency.
+18% 		3.3 GHz
64-Core
OC Multi Core Speed 		573 Pts Much faster OC 64-core speed.
+79% 		321 Pts
64-Core
Avg. Multi Core Speed 		519 Pts Hugely faster 64-core speed.
+89% 		274 Pts
Specifications 
Series
CPU Architecture 		Haswell Haswell
Socket
Motherboard Socket 		FCLGA1150 FCLGA1150
Graphics
Integrated Graphics 		HD 4600 HD 4600
Cache
Cache 		8 MB SmartCache 6 MB SmartCache
Recommended Price
Recommended Customer Price 		$314.00 - $320.00 $182.00 - $187.00
Max Turbo Frequency
Max Turbo Frequency 		3.9 GHz 3.3 GHz
Graphics Output
Graphics Output 		eDP/DP/HDMI/DVI/VGA eDP/DP/HDMI/VGA
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.2 GHz 1.1 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
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

More specs » More specs »
Conclusion 
Average Bench 73.5%
Average Bench 61.3%
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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

The Intel i5-4440 is one of the cheaper four core Haswell processors. Unfortunately it is clocked at just 3.3 GHz Turbo, which is 15% lower than the leading Haswell i5 and because it has a locked multiplier there is little that can be done about it. Comparing the 4440 to the 4670K shows that the 15% reduction in Turbo clock speed basically results in a 23% performance loss to the 4670K. The Pentium G3420 actually has a higher base clock speed and costs about a third as much as the i5-4440 yet for the majority of, single and dual-core, desktop orientated tasks offers comparable performance. I don't think the i5-4440 makes much sense and would prefer either a much stronger 4770 or the weaker but much better value G3420. [Mar '14 CPUPro]

MORE DETAILS

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