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Core i7-9750H vs i3-8100


Description
Both models i7-9750H 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 i7-9750H gets a score of 286.4 k points while the i3-8100 gets 200.4 k points.

Summarizing, the i7-9750H is 1.4 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
2.6 GHz
3.6 GHz
Boost frecuency
4.5 GHz
3.6 GHz
Socket
BGA 1440
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
12288 kB
6144 kB
Date
April 2019
October 2017
Mean monothread perf.
65.33k points
59.18k points
Mean multithread perf.
286.43k points
200.4k points

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
i7-9750H
i3-8100
Test#1 (Integers)
25.93k
24.47k (x0.94)
Test#2 (FP)
22.84k
21.52k (x0.94)
Test#3 (Generic, ZIP)
5.11k
4.95k (x0.97)
Test#1 (Memory)
11.46k
8.24k (x0.72)
TOTAL
65.33k
59.18k (x0.91)

Multithread

i7-9750H

i3-8100
Test#1 (Integers)
130.68k
92.86k (x0.71)
Test#2 (FP)
119.91k
83.05k (x0.69)
Test#3 (Generic, ZIP)
28.76k
18.55k (x0.65)
Test#1 (Memory)
7.08k
5.93k (x0.84)
TOTAL
286.43k
200.4k (x0.7)

Performance/W
i7-9750H
i3-8100
Test#1 (Integers)
2904 points/W
1429 points/W
Test#2 (FP)
2665 points/W
1278 points/W
Test#3 (Generic, ZIP)
639 points/W
285 points/W
Test#1 (Memory)
157 points/W
91 points/W
TOTAL
6365 points/W
3083 points/W

Performance/GHz
i7-9750H
i3-8100
Test#1 (Integers)
5762 points/GHz
6797 points/GHz
Test#2 (FP)
5075 points/GHz
5977 points/GHz
Test#3 (Generic, ZIP)
1135 points/GHz
1374 points/GHz
Test#1 (Memory)
2547 points/GHz
2290 points/GHz
TOTAL
14519 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