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Core i7-4500U vs i5-6400


Description
The i7-4500U is based on Haswell architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i7-4500U gets a score of 68.3 k points while the i5-6400 gets 176.7 k points.

Summarizing, the i5-6400 is 2.6 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
506e3
Core
Haswell
Skylake-S
Architecture
Base frecuency
1.8 GHz
2.7 GHz
Boost frecuency
3 GHz
3.3 GHz
Socket
BGA1168
LGA 1151
Cores/Threads
2 /2
4/4
TDP
15 W
65 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
September 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
i5-6400
Test#1 (Integers)
3313
3185 (-3.88%)
Test#2 (FP)
8374
12581 (50.24%)
Test#3 (Generic, ZIP)
3680
4105 (11.55%)
Test#1 (Memory)
3343
3934 (17.67%)
TOTAL
18711
23805 (27.23%)

Multithread

i7-4500U

i5-6400
Test#1 (Integers)
5207
10777 (106.96%)
Test#2 (FP)
18544
44113 (137.89%)
Test#3 (Generic, ZIP)
7797
13887 (78.10%)
Test#1 (Memory)
3545
7829 (120.88%)
TOTAL
35092
76606 (118.30%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-4500U
i5-6400
Test#1 (Integers)
10196
11411 (11.92%)
Test#2 (FP)
9233
16352 (77.10%)
Test#3 (Generic, ZIP)
3894
4146 (6.48%)
Test#1 (Memory)
3291
3277 (-0.44%)
TOTAL
26614
35186 (32.21%)

Multithread

i7-4500U

i5-6400
Test#1 (Integers)
19204
41474 (115.97%)
Test#2 (FP)
19017
65462 (244.23%)
Test#3 (Generic, ZIP)
8308
16202 (95.02%)
Test#1 (Memory)
3222
7660 (137.73%)
TOTAL
49751
130798 (162.91%)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-4500U
i5-6400
Test#1 (Integers)
10412
11824 (13.57%)
Test#2 (FP)
8970
18358 (104.65%)
Test#3 (Generic, ZIP)
3821
4426 (15.83%)
Test#1 (Memory)
3385
4950 (46.22%)
TOTAL
26588
39558 (48.78%)

Multithread

i7-4500U

i5-6400
Test#1 (Integers)
19907
46044 (131.29%)
Test#2 (FP)
21470
69468 (223.56%)
Test#3 (Generic, ZIP)
8534
16330 (91.34%)
Test#1 (Memory)
3531
7742 (119.29%)
TOTAL
53442
139584 (161.19%)

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
i5-6400
Test#1 (Integers)
17226
21213 (23.15%)
Test#2 (FP)
9053
18149 (100.48%)
Test#3 (Generic, ZIP)
4032
4213 (4.49%)
Test#1 (Memory)
3623
4304 (18.79%)
TOTAL
33933
47879 (41.10%)

Multithread

i7-4500U

i5-6400
Test#1 (Integers)
33150
80359 (142.41%)
Test#2 (FP)
22687
71943 (217.12%)
Test#3 (Generic, ZIP)
8735
16375 (87.46%)
Test#1 (Memory)
3696
8054 (117.90%)
TOTAL
68268
176731 (158.88%)

Performance/W
i7-4500U
i5-6400
Test#1 (Integers)
2210 points/W
1236 points/W
Test#2 (FP)
1512 points/W
1107 points/W
Test#3 (Generic, ZIP)
582 points/W
252 points/W
Test#1 (Memory)
246 points/W
124 points/W
TOTAL
4551 points/W
2719 points/W

Performance/GHz
i7-4500U
i5-6400
Test#1 (Integers)
5742 points/GHz
6428 points/GHz
Test#2 (FP)
3018 points/GHz
5500 points/GHz
Test#3 (Generic, ZIP)
1344 points/GHz
1277 points/GHz
Test#1 (Memory)
1208 points/GHz
1304 points/GHz
TOTAL
11311 points/GHz
14509 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