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Core i3-9100T vs i3-8100


Description
Both models i3-9100T 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 i3-9100T gets a score of 192.9 k points while the i3-8100 gets 200.4 k points.

Summarizing, the i3-8100 is 1 times faster than the i3-9100T. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906eb
906eb
Core
Coffee Lake-S
Coffee Lake-S
Architecture
Base frecuency
3.1 GHz
3.6 GHz
Boost frecuency
3.7 GHz
3.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
4/4
TDP
35 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
June 2019
October 2017
Mean monothread perf.
60.16k points
59.18k points
Mean multithread perf.
192.88k 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
i3-9100T
i3-8100
Test#1 (Integers)
3.79k
3.72k (x0.98)
Test#2 (FP)
15.65k
15.33k (x0.98)
Test#3 (Generic, ZIP)
4.59k
4.71k (x1.02)
Test#1 (Memory)
7.78k
6.76k (x0.87)
TOTAL
31.81k
30.52k (x0.96)

Multithread

i3-9100T

i3-8100
Test#1 (Integers)
13.97k
14.48k (x1.04)
Test#2 (FP)
57.83k
59.59k (x1.03)
Test#3 (Generic, ZIP)
17.03k
18.07k (x1.06)
Test#1 (Memory)
4.35k
4.3k (x0.99)
TOTAL
93.18k
96.43k (x1.03)

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
i3-9100T
i3-8100
Test#1 (Integers)
13.74k
13.51k (x0.98)
Test#2 (FP)
19.7k
19.38k (x0.98)
Test#3 (Generic, ZIP)
4.86k
5.06k (x1.04)
Test#1 (Memory)
8.61k
7.87k (x0.91)
TOTAL
46.91k
45.81k (x0.98)

Multithread

i3-9100T

i3-8100
Test#1 (Integers)
50.5k
52.88k (x1.05)
Test#2 (FP)
72.58k
75.92k (x1.05)
Test#3 (Generic, ZIP)
18.09k
19.52k (x1.08)
Test#1 (Memory)
4.28k
4.53k (x1.06)
TOTAL
145.45k
152.86k (x1.05)

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
i3-9100T
i3-8100
Test#1 (Integers)
13.6k
13.52k (x0.99)
Test#2 (FP)
20.58k
20.57k (x1)
Test#3 (Generic, ZIP)
4.76k
4.96k (x1.04)
Test#1 (Memory)
8.8k
7.91k (x0.9)
TOTAL
47.74k
46.96k (x0.98)

Multithread

i3-9100T

i3-8100
Test#1 (Integers)
50.18k
53.4k (x1.06)
Test#2 (FP)
75.99k
80.87k (x1.06)
Test#3 (Generic, ZIP)
17.66k
19.03k (x1.08)
Test#1 (Memory)
4.12k
4.29k (x1.04)
TOTAL
147.95k
157.59k (x1.07)

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
i3-9100T
i3-8100
Test#1 (Integers)
24.89k
24.47k (x0.98)
Test#2 (FP)
21.82k
21.52k (x0.99)
Test#3 (Generic, ZIP)
4.83k
4.95k (x1.03)
Test#1 (Memory)
8.63k
8.24k (x0.96)
TOTAL
60.16k
59.18k (x0.98)

Multithread

i3-9100T

i3-8100
Test#1 (Integers)
89.4k
92.86k (x1.04)
Test#2 (FP)
81.19k
83.05k (x1.02)
Test#3 (Generic, ZIP)
18.06k
18.55k (x1.03)
Test#1 (Memory)
4.24k
5.93k (x1.4)
TOTAL
192.88k
200.4k (x1.04)

Performance/W
i3-9100T
i3-8100
Test#1 (Integers)
2554 points/W
1429 points/W
Test#2 (FP)
2320 points/W
1278 points/W
Test#3 (Generic, ZIP)
516 points/W
285 points/W
Test#1 (Memory)
121 points/W
91 points/W
TOTAL
5511 points/W
3083 points/W

Performance/GHz
i3-9100T
i3-8100
Test#1 (Integers)
6727 points/GHz
6797 points/GHz
Test#2 (FP)
5897 points/GHz
5977 points/GHz
Test#3 (Generic, ZIP)
1304 points/GHz
1374 points/GHz
Test#1 (Memory)
2331 points/GHz
2290 points/GHz
TOTAL
16260 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