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Core i7-4500U vs i7-4720HQ


Description
Both models i7-4500U and i7-4720HQ 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 i7-4500U gets a score of 68.3 k points while the i7-4720HQ gets 132.3 k points.

Summarizing, the i7-4720HQ is 1.9 times faster than the i7-4500U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
40651
306c3
Core
Haswell
Haswell
Architecture
Base frecuency
1.8 GHz
2.6 GHz
Boost frecuency
3 GHz
3.6 GHz
Socket
BGA1168
BGA1364
Cores/Threads
2 /2
4/8
TDP
15 W
47 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
4096 kB
6144 kB
Date
Jun 2013
January 2015

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
i7-4500U
i7-4720HQ
Test#1 (Integers)
3313
3789 (14.37%)
Test#2 (FP)
8374
9638 (15.09%)
Test#3 (Generic, ZIP)
3680
4341 (17.96%)
Test#1 (Memory)
3343
3760 (12.47%)
TOTAL
18711
21528 (15.06%)

Multithread

i7-4500U

i7-4720HQ
Test#1 (Integers)
5207
11658 (123.88%)
Test#2 (FP)
18544
37710 (103.36%)
Test#3 (Generic, ZIP)
7797
16376 (110.03%)
Test#1 (Memory)
3545
5944 (67.69%)
TOTAL
35092
71688 (104.29%)

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
i7-4500U
i7-4720HQ
Test#1 (Integers)
17226
20683 (20.07%)
Test#2 (FP)
9053
10280 (13.55%)
Test#3 (Generic, ZIP)
4032
4866 (20.68%)
Test#1 (Memory)
3623
4288 (18.34%)
TOTAL
33933
40116 (18.22%)

Multithread

i7-4500U

i7-4720HQ
Test#1 (Integers)
33150
66843 (101.64%)
Test#2 (FP)
22687
42848 (88.87%)
Test#3 (Generic, ZIP)
8735
16772 (92.00%)
Test#1 (Memory)
3696
5883 (59.18%)
TOTAL
68268
132346 (93.86%)

Performance/W
i7-4500U
i7-4720HQ
Test#1 (Integers)
2210 points/W
1422 points/W
Test#2 (FP)
1512 points/W
912 points/W
Test#3 (Generic, ZIP)
582 points/W
357 points/W
Test#1 (Memory)
246 points/W
125 points/W
TOTAL
4551 points/W
2816 points/W

Performance/GHz
i7-4500U
i7-4720HQ
Test#1 (Integers)
5742 points/GHz
5745 points/GHz
Test#2 (FP)
3018 points/GHz
2856 points/GHz
Test#3 (Generic, ZIP)
1344 points/GHz
1352 points/GHz
Test#1 (Memory)
1208 points/GHz
1191 points/GHz
TOTAL
11311 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. 3.7.8