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Core i7-8550U vs i3-8100


Description
The i7-8550U is based on Kaby Lake architecture while the i3-8100 is based on Coffee Lake.

Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i3-8100 gets 200.4 k points.

Summarizing, the i3-8100 is 1.2 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
906eb
Core
Kaby Lake-R
Coffee Lake-S
Architecture
Base frecuency
1.8 GHz
3.6 GHz
Boost frecuency
4 GHz
3.6 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
4/8
4/4
TDP
15 W
65 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
October 2017
Mean monothread perf.
64.2k points
59.18k points
Mean multithread perf.
166.12k points
200.4k 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
i3-8100
Test#1 (Integers)
3.91k
3.72k (x0.95)
Test#2 (FP)
15.98k
15.33k (x0.96)
Test#3 (Generic, ZIP)
5.11k
4.71k (x0.92)
Test#1 (Memory)
11.05k
6.76k (x0.61)
TOTAL
36.05k
30.52k (x0.85)

Multithread

i7-8550U

i3-8100
Test#1 (Integers)
11.76k
14.48k (x1.23)
Test#2 (FP)
50.15k
59.59k (x1.19)
Test#3 (Generic, ZIP)
16.76k
18.07k (x1.08)
Test#1 (Memory)
4.17k
4.3k (x1.03)
TOTAL
82.84k
96.43k (x1.16)

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
i3-8100
Test#1 (Integers)
12.93k
13.51k (x1.04)
Test#2 (FP)
20.59k
19.38k (x0.94)
Test#3 (Generic, ZIP)
5.41k
5.06k (x0.93)
Test#1 (Memory)
10.48k
7.87k (x0.75)
TOTAL
49.41k
45.81k (x0.93)

Multithread

i7-8550U

i3-8100
Test#1 (Integers)
41.11k
52.88k (x1.29)
Test#2 (FP)
65.04k
75.92k (x1.17)
Test#3 (Generic, ZIP)
17.53k
19.52k (x1.11)
Test#1 (Memory)
4.22k
4.53k (x1.07)
TOTAL
127.9k
152.86k (x1.2)

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
i3-8100
Test#1 (Integers)
13.15k
13.52k (x1.03)
Test#2 (FP)
19.7k
20.57k (x1.04)
Test#3 (Generic, ZIP)
5.1k
4.96k (x0.97)
Test#1 (Memory)
9.21k
7.91k (x0.86)
TOTAL
47.16k
46.96k (x1)

Multithread

i7-8550U

i3-8100
Test#1 (Integers)
34.13k
53.4k (x1.56)
Test#2 (FP)
53.79k
80.87k (x1.5)
Test#3 (Generic, ZIP)
13.91k
19.03k (x1.37)
Test#1 (Memory)
4.12k
4.29k (x1.04)
TOTAL
105.95k
157.59k (x1.49)

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
i3-8100
Test#1 (Integers)
25.37k
24.47k (x0.96)
Test#2 (FP)
22.6k
21.52k (x0.95)
Test#3 (Generic, ZIP)
5.13k
4.95k (x0.96)
Test#1 (Memory)
11.1k
8.24k (x0.74)
TOTAL
64.2k
59.18k (x0.92)

Multithread

i7-8550U

i3-8100
Test#1 (Integers)
72.82k
92.86k (x1.28)
Test#2 (FP)
71.71k
83.05k (x1.16)
Test#3 (Generic, ZIP)
17.35k
18.55k (x1.07)
Test#1 (Memory)
4.24k
5.93k (x1.4)
TOTAL
166.12k
200.4k (x1.21)

Performance/W
i7-8550U
i3-8100
Test#1 (Integers)
4855 points/W
1429 points/W
Test#2 (FP)
4781 points/W
1278 points/W
Test#3 (Generic, ZIP)
1157 points/W
285 points/W
Test#1 (Memory)
282 points/W
91 points/W
TOTAL
11075 points/W
3083 points/W

Performance/GHz
i7-8550U
i3-8100
Test#1 (Integers)
6343 points/GHz
6797 points/GHz
Test#2 (FP)
5650 points/GHz
5977 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1374 points/GHz
Test#1 (Memory)
2774 points/GHz
2290 points/GHz
TOTAL
16049 points/GHz
16438 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