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Core i5-4278U vs i7-5500U


Description
The i5-4278U is based on Haswell architecture while the i7-5500U is based on Broadwell.

Using the multithread performance as a reference, the i5-4278U gets a score of 76.2 k points while the i7-5500U gets 82.9 k points.

Summarizing, the i7-5500U is 1.1 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
306d4
Core
Haswell
Broadwell-U
Architecture
Base frecuency
2.6 GHz
2.4 GHz
Boost frecuency
3.1 GHz
3 GHz
Socket
BGA 1168
BGA 1168
Cores/Threads
2/4
2 /4
TDP
28 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
256 kB
Cache L3
3072 kB
4096 kB
Date
July 2014
March 2015
Mean monothread perf.
34.55k points
40.41k points
Mean multithread perf.
76.18k points
82.89k 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
i7-5500U
Test#1 (Integers)
17.58k
17.76k (x1.01)
Test#2 (FP)
9.35k
14.9k (x1.59)
Test#3 (Generic, ZIP)
3.99k
4.17k (x1.04)
Test#1 (Memory)
3.64k
3.58k (x0.98)
TOTAL
34.55k
40.41k (x1.17)

Multithread

i5-4278U

i7-5500U
Test#1 (Integers)
38.45k
34.9k (x0.91)
Test#2 (FP)
23.07k
35.07k (x1.52)
Test#3 (Generic, ZIP)
10k
9.28k (x0.93)
Test#1 (Memory)
4.65k
3.64k (x0.78)
TOTAL
76.18k
82.89k (x1.09)

Performance/W
i5-4278U
i7-5500U
Test#1 (Integers)
1373 points/W
2327 points/W
Test#2 (FP)
824 points/W
2338 points/W
Test#3 (Generic, ZIP)
357 points/W
619 points/W
Test#1 (Memory)
166 points/W
243 points/W
TOTAL
2721 points/W
5526 points/W

Performance/GHz
i5-4278U
i7-5500U
Test#1 (Integers)
5670 points/GHz
5920 points/GHz
Test#2 (FP)
3015 points/GHz
4966 points/GHz
Test#3 (Generic, ZIP)
1288 points/GHz
1390 points/GHz
Test#1 (Memory)
1173 points/GHz
1193 points/GHz
TOTAL
11145 points/GHz
13469 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4