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Core i7-8550U vs i5-4440


Description
The i7-8550U is based on Kaby Lake architecture while the i5-4440 is based on Haswell.

Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i5-4440 gets 138.7 k points.

Summarizing, the i7-8550U is 1.2 times faster than the i5-4440 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
306c3
Core
Kaby Lake-R
Haswell
Architecture
Base frecuency
1.8 GHz
3.1 GHz
Boost frecuency
4 GHz
3.3 GHz
Socket
BGA1356
LGA 1150
Cores/Threads
4/8
4/4
TDP
15 W
84 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
August 2017
June 2013
Mean monothread perf.
64.2k points
38.29k points
Mean multithread perf.
166.12k points
138.69k 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
i7-8550U
i5-4440
Test#1 (Integers)
3.91k
3.71k (x0.95)
Test#2 (FP)
15.98k
9.23k (x0.58)
Test#3 (Generic, ZIP)
5.11k
4.28k (x0.84)
Test#1 (Memory)
11.05k
3.8k (x0.34)
TOTAL
36.05k
21.02k (x0.58)

Multithread

i7-8550U

i5-4440
Test#1 (Integers)
11.76k
13.33k (x1.13)
Test#2 (FP)
50.15k
34.2k (x0.68)
Test#3 (Generic, ZIP)
16.76k
15.91k (x0.95)
Test#1 (Memory)
4.17k
6.56k (x1.58)
TOTAL
82.84k
70k (x0.85)

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
i7-8550U
i5-4440
Test#1 (Integers)
12.93k
11.43k (x0.88)
Test#2 (FP)
20.59k
10.13k (x0.49)
Test#3 (Generic, ZIP)
5.41k
4.53k (x0.84)
Test#1 (Memory)
10.48k
3.93k (x0.37)
TOTAL
49.41k
30.01k (x0.61)

Multithread

i7-8550U

i5-4440
Test#1 (Integers)
41.11k
43.67k (x1.06)
Test#2 (FP)
65.04k
38.78k (x0.6)
Test#3 (Generic, ZIP)
17.53k
17.03k (x0.97)
Test#1 (Memory)
4.22k
7.72k (x1.83)
TOTAL
127.9k
107.2k (x0.84)

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
i7-8550U
i5-4440
Test#1 (Integers)
13.15k
11.56k (x0.88)
Test#2 (FP)
19.7k
10.36k (x0.53)
Test#3 (Generic, ZIP)
5.1k
4.45k (x0.87)
Test#1 (Memory)
9.21k
3.8k (x0.41)
TOTAL
47.16k
30.17k (x0.64)

Multithread

i7-8550U

i5-4440
Test#1 (Integers)
34.13k
44.07k (x1.29)
Test#2 (FP)
53.79k
41.07k (x0.76)
Test#3 (Generic, ZIP)
13.91k
16.89k (x1.21)
Test#1 (Memory)
4.12k
7.33k (x1.78)
TOTAL
105.95k
109.35k (x1.03)

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
i7-8550U
i5-4440
Test#1 (Integers)
25.37k
19.08k (x0.75)
Test#2 (FP)
22.6k
10.47k (x0.46)
Test#3 (Generic, ZIP)
5.13k
4.53k (x0.88)
Test#1 (Memory)
11.1k
4.21k (x0.38)
TOTAL
64.2k
38.29k (x0.6)

Multithread

i7-8550U

i5-4440
Test#1 (Integers)
72.82k
73.26k (x1.01)
Test#2 (FP)
71.71k
41.01k (x0.57)
Test#3 (Generic, ZIP)
17.35k
17.12k (x0.99)
Test#1 (Memory)
4.24k
7.3k (x1.72)
TOTAL
166.12k
138.69k (x0.83)

Performance/W
i7-8550U
i5-4440
Test#1 (Integers)
4855 points/W
872 points/W
Test#2 (FP)
4781 points/W
488 points/W
Test#3 (Generic, ZIP)
1157 points/W
204 points/W
Test#1 (Memory)
282 points/W
87 points/W
TOTAL
11075 points/W
1651 points/W

Performance/GHz
i7-8550U
i5-4440
Test#1 (Integers)
6343 points/GHz
5783 points/GHz
Test#2 (FP)
5650 points/GHz
3174 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1372 points/GHz
Test#1 (Memory)
2774 points/GHz
1275 points/GHz
TOTAL
16049 points/GHz
11604 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