Core i5-4278U vs i7-4765T
Description
Both models i5-4278U and i7-4765T are based on Haswell architecture.
"Haswell is known as fourth-generation core too. It uses 22nm Tri-Gate FinFET (non-planar, ""3D"") technology. It includes four arithmetic logic unit (ALU) and three address generation unit (AGU). This generation is able to run Advanced Vector Extensions 2 (AVX2) instruction set among BMI1, BMI2, ABM and FMA3. At this time, Intel used new sockets: LGA 1150 for desktops and BGA1364 for the mobile CPUs."
Using the multithread performance as a reference, the i5-4278U gets a score of 76.2 k points while the i7-4765T gets 134.5 k points.
Summarizing, the i7-4765T is 1.8 times faster than the i5-4278U. To get a proper comparison between both models, take a look to the data shown below.
"Haswell is known as fourth-generation core too. It uses 22nm Tri-Gate FinFET (non-planar, ""3D"") technology. It includes four arithmetic logic unit (ALU) and three address generation unit (AGU). This generation is able to run Advanced Vector Extensions 2 (AVX2) instruction set among BMI1, BMI2, ABM and FMA3. At this time, Intel used new sockets: LGA 1150 for desktops and BGA1364 for the mobile CPUs."
Using the multithread performance as a reference, the i5-4278U gets a score of 76.2 k points while the i7-4765T gets 134.5 k points.
Summarizing, the i7-4765T is 1.8 times faster than the i5-4278U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
40651
306c3
Core
Haswell
Haswell
Base frecuency
2.6 GHz
2 GHz
Boost frecuency
3.1 GHz
3 GHz
Socket
BGA 1168
LGA 1150
Cores/Threads
2/4
4/8
TDP
28 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
July 2014
May 2013
Mean monothread perf.
34.55k points
31.31k points
Mean multithread perf.
76.18k points
134.53k points
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i5-4278U
i7-4765T
Test#1 (Integers)
17.58k
15.61k (x0.89)
Test#2 (FP)
9.35k
8.8k (x0.94)
Test#3 (Generic, ZIP)
3.99k
3.58k (x0.9)
Test#1 (Memory)
3.64k
3.33k (x0.92)
TOTAL
34.55k
31.31k (x0.91)
Multithread
i5-4278U
i7-4765T
Test#1 (Integers)
38.45k
66k (x1.72)
Test#2 (FP)
23.07k
43.27k (x1.88)
Test#3 (Generic, ZIP)
10k
17.39k (x1.74)
Test#1 (Memory)
4.65k
7.88k (x1.69)
TOTAL
76.18k
134.53k (x1.77)
Performance/W
i5-4278U
i7-4765T
Test#1 (Integers)
1373 points/W
1886 points/W
Test#2 (FP)
824 points/W
1236 points/W
Test#3 (Generic, ZIP)
357 points/W
497 points/W
Test#1 (Memory)
166 points/W
225 points/W
TOTAL
2721 points/W
3844 points/W
Performance/GHz
i5-4278U
i7-4765T
Test#1 (Integers)
5670 points/GHz
5203 points/GHz
Test#2 (FP)
3015 points/GHz
2932 points/GHz
Test#3 (Generic, ZIP)
1288 points/GHz
1193 points/GHz
Test#1 (Memory)
1173 points/GHz
1110 points/GHz
TOTAL
11145 points/GHz
10438 points/GHz
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4