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Core i3-8100 vs i7-8750H


Description
Both models i3-8100 and i7-8750H 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 i3-8100 gets a score of 200.4 k points while the i7-8750H gets 231.9 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
906eb
906ea
Core
Coffee Lake-S
Coffee Lake-H
Architecture
Base frecuency
3.6 GHz
2.2 GHz
Boost frecuency
3.6 GHz
4.1 GHz
Socket
LGA 1151
BGA1440
Cores/Threads
4/4
6/12
TDP
65 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
6144 kB
9216 kB
Date
October 2017
April 2018
Mean monothread perf.
59.18k points
53.41k points
Mean multithread perf.
200.4k points
231.9k 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
i3-8100
i7-8750H
Test#1 (Integers)
3.72k
3.01k (x0.81)
Test#2 (FP)
15.33k
11.68k (x0.76)
Test#3 (Generic, ZIP)
4.71k
3.78k (x0.8)
Test#1 (Memory)
6.76k
5.64k (x0.83)
TOTAL
30.52k
24.12k (x0.79)

Multithread

i3-8100

i7-8750H
Test#1 (Integers)
14.48k
7.4k (x0.51)
Test#2 (FP)
59.59k
29.99k (x0.5)
Test#3 (Generic, ZIP)
18.07k
9.66k (x0.53)
Test#1 (Memory)
4.3k
5.12k (x1.19)
TOTAL
96.43k
52.18k (x0.54)

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
i3-8100
i7-8750H
Test#1 (Integers)
13.52k
15.14k (x1.12)
Test#2 (FP)
20.57k
22.8k (x1.11)
Test#3 (Generic, ZIP)
4.96k
5.5k (x1.11)
Test#1 (Memory)
7.91k
10.97k (x1.39)
TOTAL
46.96k
54.41k (x1.16)

Multithread

i3-8100

i7-8750H
Test#1 (Integers)
53.4k
82.81k (x1.55)
Test#2 (FP)
80.87k
118.58k (x1.47)
Test#3 (Generic, ZIP)
19.03k
25.08k (x1.32)
Test#1 (Memory)
4.29k
4.86k (x1.13)
TOTAL
157.59k
231.34k (x1.47)

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
i3-8100
i7-8750H
Test#1 (Integers)
24.47k
22.36k (x0.91)
Test#2 (FP)
21.52k
19.33k (x0.9)
Test#3 (Generic, ZIP)
4.95k
4.4k (x0.89)
Test#1 (Memory)
8.24k
7.32k (x0.89)
TOTAL
59.18k
53.41k (x0.9)

Multithread

i3-8100

i7-8750H
Test#1 (Integers)
92.86k
103.82k (x1.12)
Test#2 (FP)
83.05k
100.47k (x1.21)
Test#3 (Generic, ZIP)
18.55k
23.81k (x1.28)
Test#1 (Memory)
5.93k
3.8k (x0.64)
TOTAL
200.4k
231.9k (x1.16)

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

Performance/GHz
i3-8100
i7-8750H
Test#1 (Integers)
6797 points/GHz
5454 points/GHz
Test#2 (FP)
5977 points/GHz
4714 points/GHz
Test#3 (Generic, ZIP)
1374 points/GHz
1073 points/GHz
Test#1 (Memory)
2290 points/GHz
1786 points/GHz
TOTAL
16438 points/GHz
13027 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