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Core i7-9750H vs i3-9100T


Description
Both models i7-9750H and i3-9100T 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 276.5 k points while the i3-9100T gets 192.9 k points.

Summarizing, the i7-9750H is 1.4 times faster than the i3-9100T. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
906eb
Core
Coffee Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.6 GHz
3.1 GHz
Boost frecuency
4.5 GHz
3.7 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
6/12
4/4
TDP
45 W
35 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
June 2019
Mean monothread perf.
62.92k points
60.16k points
Mean multithread perf.
276.46k points
192.88k 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
i7-9750H
i3-9100T
Test#1 (Integers)
4.53k
3.79k (x0.84)
Test#2 (FP)
18.24k
15.65k (x0.86)
Test#3 (Generic, ZIP)
5.76k
4.59k (x0.8)
Test#1 (Memory)
13.01k
7.78k (x0.6)
TOTAL
41.54k
31.81k (x0.77)

Multithread

i7-9750H

i3-9100T
Test#1 (Integers)
24.3k
13.97k (x0.57)
Test#2 (FP)
97.88k
57.83k (x0.59)
Test#3 (Generic, ZIP)
29.85k
17.03k (x0.57)
Test#1 (Memory)
11.93k
4.35k (x0.36)
TOTAL
163.95k
93.18k (x0.57)

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
i7-9750H
i3-9100T
Test#1 (Integers)
16.32k
13.74k (x0.84)
Test#2 (FP)
23.42k
19.7k (x0.84)
Test#3 (Generic, ZIP)
6.04k
4.86k (x0.8)
Test#1 (Memory)
13.24k
8.61k (x0.65)
TOTAL
59.03k
46.91k (x0.79)

Multithread

i7-9750H

i3-9100T
Test#1 (Integers)
86.92k
50.5k (x0.58)
Test#2 (FP)
126.14k
72.58k (x0.58)
Test#3 (Generic, ZIP)
29.62k
18.09k (x0.61)
Test#1 (Memory)
11.86k
4.28k (x0.36)
TOTAL
254.54k
145.45k (x0.57)

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
i7-9750H
i3-9100T
Test#1 (Integers)
16.31k
13.6k (x0.83)
Test#2 (FP)
24.48k
20.58k (x0.84)
Test#3 (Generic, ZIP)
5.87k
4.76k (x0.81)
Test#1 (Memory)
13.02k
8.8k (x0.68)
TOTAL
59.67k
47.74k (x0.8)

Multithread

i7-9750H

i3-9100T
Test#1 (Integers)
87.54k
50.18k (x0.57)
Test#2 (FP)
131.05k
75.99k (x0.58)
Test#3 (Generic, ZIP)
28.47k
17.66k (x0.62)
Test#1 (Memory)
11.8k
4.12k (x0.35)
TOTAL
258.87k
147.95k (x0.57)

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
i3-9100T
Test#1 (Integers)
25.22k
24.89k (x0.99)
Test#2 (FP)
21.97k
21.82k (x0.99)
Test#3 (Generic, ZIP)
5.02k
4.83k (x0.96)
Test#1 (Memory)
10.71k
8.63k (x0.81)
TOTAL
62.92k
60.16k (x0.96)

Multithread

i7-9750H

i3-9100T
Test#1 (Integers)
125.56k
89.4k (x0.71)
Test#2 (FP)
115.86k
81.19k (x0.7)
Test#3 (Generic, ZIP)
25.63k
18.06k (x0.7)
Test#1 (Memory)
9.4k
4.24k (x0.45)
TOTAL
276.46k
192.88k (x0.7)

Performance/W
i7-9750H
i3-9100T
Test#1 (Integers)
2790 points/W
2554 points/W
Test#2 (FP)
2575 points/W
2320 points/W
Test#3 (Generic, ZIP)
570 points/W
516 points/W
Test#1 (Memory)
209 points/W
121 points/W
TOTAL
6144 points/W
5511 points/W

Performance/GHz
i7-9750H
i3-9100T
Test#1 (Integers)
5605 points/GHz
6727 points/GHz
Test#2 (FP)
4882 points/GHz
5897 points/GHz
Test#3 (Generic, ZIP)
1115 points/GHz
1304 points/GHz
Test#1 (Memory)
2380 points/GHz
2331 points/GHz
TOTAL
13982 points/GHz
16260 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