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Core i7-7500U vs i7-4720HQ


Description
The i7-7500U is based on Kaby Lake architecture while the i7-4720HQ is based on Haswell.

Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i7-4720HQ gets 132.3 k points.

Summarizing, the i7-4720HQ is 1.5 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
306c3
Core
Kaby Lake-U
Haswell
Architecture
Base frecuency
2.7 GHz
2.6 GHz
Boost frecuency
3.5 GHz
3.6 GHz
Socket
BGA1356
BGA1364
Cores/Threads
2/4
4/8
TDP
15 W
47 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
4096 kB
6144 kB
Date
August 2016
January 2015
Mean monothread perf.
48.67k points
40.12k points
Mean multithread perf.
86.94k points
132.35k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-7500U
i7-4720HQ
Test#1 (Integers)
3.53k
3.79k (x1.07)
Test#2 (FP)
14.67k
9.64k (x0.66)
Test#3 (Generic, ZIP)
4.84k
4.34k (x0.9)
Test#1 (Memory)
6.26k
3.76k (x0.6)
TOTAL
29.29k
21.53k (x0.74)

Multithread

i7-7500U

i7-4720HQ
Test#1 (Integers)
7.26k
11.66k (x1.61)
Test#2 (FP)
35.04k
37.71k (x1.08)
Test#3 (Generic, ZIP)
11.28k
16.38k (x1.45)
Test#1 (Memory)
5.69k
5.94k (x1.04)
TOTAL
59.27k
71.69k (x1.21)

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
i7-7500U
i7-4720HQ
Test#1 (Integers)
20.74k
20.68k (x1)
Test#2 (FP)
18.41k
10.28k (x0.56)
Test#3 (Generic, ZIP)
3.98k
4.87k (x1.22)
Test#1 (Memory)
5.54k
4.29k (x0.77)
TOTAL
48.67k
40.12k (x0.82)

Multithread

i7-7500U

i7-4720HQ
Test#1 (Integers)
37.34k
66.84k (x1.79)
Test#2 (FP)
35.79k
42.85k (x1.2)
Test#3 (Generic, ZIP)
8.34k
16.77k (x2.01)
Test#1 (Memory)
5.48k
5.88k (x1.07)
TOTAL
86.94k
132.35k (x1.52)

Performance/W
i7-7500U
i7-4720HQ
Test#1 (Integers)
2489 points/W
1422 points/W
Test#2 (FP)
2386 points/W
912 points/W
Test#3 (Generic, ZIP)
556 points/W
357 points/W
Test#1 (Memory)
365 points/W
125 points/W
TOTAL
5796 points/W
2816 points/W

Performance/GHz
i7-7500U
i7-4720HQ
Test#1 (Integers)
5926 points/GHz
5745 points/GHz
Test#2 (FP)
5260 points/GHz
2856 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
1352 points/GHz
Test#1 (Memory)
1584 points/GHz
1191 points/GHz
TOTAL
13907 points/GHz
11143 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