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Core i7-8750H vs i3-8100


Description
Both models i7-8750H and i3-8100 are based on Coffee Lake architecture.

Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.

Using the multithread performance as a reference, the i7-8750H gets a score of 231.9 k points while the i3-8100 gets 200.4 k points.

Summarizing, the i7-8750H is 1.2 times faster than the i3-8100. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
906eb
Core
Coffee Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.2 GHz
3.6 GHz
Boost frecuency
4.1 GHz
3.6 GHz
Socket
BGA1440
LGA 1151
Cores/Threads
6/12
4/4
TDP
45 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
9216 kB
6144 kB
Date
April 2018
October 2017
Mean monothread perf.
53.41k points
59.18k points
Mean multithread perf.
231.9k 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
i7-8750H
i3-8100
Test#1 (Integers)
3.01k
3.72k (x1.23)
Test#2 (FP)
11.68k
15.33k (x1.31)
Test#3 (Generic, ZIP)
3.78k
4.71k (x1.25)
Test#1 (Memory)
5.64k
6.76k (x1.2)
TOTAL
24.12k
30.52k (x1.27)

Multithread

i7-8750H

i3-8100
Test#1 (Integers)
7.4k
14.48k (x1.96)
Test#2 (FP)
29.99k
59.59k (x1.99)
Test#3 (Generic, ZIP)
9.66k
18.07k (x1.87)
Test#1 (Memory)
5.12k
4.3k (x0.84)
TOTAL
52.18k
96.43k (x1.85)

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
i7-8750H
i3-8100
Test#1 (Integers)
15.14k
13.52k (x0.89)
Test#2 (FP)
22.8k
20.57k (x0.9)
Test#3 (Generic, ZIP)
5.5k
4.96k (x0.9)
Test#1 (Memory)
10.97k
7.91k (x0.72)
TOTAL
54.41k
46.96k (x0.86)

Multithread

i7-8750H

i3-8100
Test#1 (Integers)
82.81k
53.4k (x0.64)
Test#2 (FP)
118.58k
80.87k (x0.68)
Test#3 (Generic, ZIP)
25.08k
19.03k (x0.76)
Test#1 (Memory)
4.86k
4.29k (x0.88)
TOTAL
231.34k
157.59k (x0.68)

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
i7-8750H
i3-8100
Test#1 (Integers)
22.36k
24.47k (x1.09)
Test#2 (FP)
19.33k
21.52k (x1.11)
Test#3 (Generic, ZIP)
4.4k
4.95k (x1.12)
Test#1 (Memory)
7.32k
8.24k (x1.13)
TOTAL
53.41k
59.18k (x1.11)

Multithread

i7-8750H

i3-8100
Test#1 (Integers)
103.82k
92.86k (x0.89)
Test#2 (FP)
100.47k
83.05k (x0.83)
Test#3 (Generic, ZIP)
23.81k
18.55k (x0.78)
Test#1 (Memory)
3.8k
5.93k (x1.56)
TOTAL
231.9k
200.4k (x0.86)

Performance/W
i7-8750H
i3-8100
Test#1 (Integers)
2307 points/W
1429 points/W
Test#2 (FP)
2233 points/W
1278 points/W
Test#3 (Generic, ZIP)
529 points/W
285 points/W
Test#1 (Memory)
84 points/W
91 points/W
TOTAL
5153 points/W
3083 points/W

Performance/GHz
i7-8750H
i3-8100
Test#1 (Integers)
5454 points/GHz
6797 points/GHz
Test#2 (FP)
4714 points/GHz
5977 points/GHz
Test#3 (Generic, ZIP)
1073 points/GHz
1374 points/GHz
Test#1 (Memory)
1786 points/GHz
2290 points/GHz
TOTAL
13027 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