Core i3-8100 vs i3-9100T

Description

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

i3-8100

i3-9100T

CPUID

906eb

Core

Coffee Lake-S

Architecture

Coffee Lake

Base frecuency

3.6 GHz

3.1 GHz

Boost frecuency

3.6 GHz

3.7 GHz

Socket

LGA 1151

Cores/Threads

4/4

TDP

65 W

35 W

Cache L1 (d+i)

4x32+4x32 kB

Cache L2

4x256 kB

Cache L3

6144 kB

Date

October 2017

June 2019

Mean monothread perf.

59.18k points

60.16k points

Mean multithread perf.

200.4k 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

i3-8100

i3-9100T

Test#1 (Integers)

3.72k

3.79k (x1.02)

Test#2 (FP)

15.33k

15.65k (x1.02)

Test#3 (Generic, ZIP)

4.71k

4.59k (x0.98)

Test#1 (Memory)

6.76k

7.78k (x1.15)

TOTAL

30.52k

31.81k (x1.04)

Multithread

i3-8100

i3-9100T

Test#1 (Integers)

14.48k

13.97k (x0.96)

Test#2 (FP)

59.59k

57.83k (x0.97)

Test#3 (Generic, ZIP)

18.07k

17.03k (x0.94)

Test#1 (Memory)

4.3k

4.35k (x1.01)

TOTAL

96.43k

93.18k (x0.97)

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

i3-8100

i3-9100T

Test#1 (Integers)

13.51k

13.74k (x1.02)

Test#2 (FP)

19.38k

19.7k (x1.02)

Test#3 (Generic, ZIP)

5.06k

4.86k (x0.96)

Test#1 (Memory)

7.87k

8.61k (x1.09)

TOTAL

45.81k

46.91k (x1.02)

Multithread

i3-8100

i3-9100T

Test#1 (Integers)

52.88k

50.5k (x0.95)

Test#2 (FP)

75.92k

72.58k (x0.96)

Test#3 (Generic, ZIP)

19.52k

18.09k (x0.93)

Test#1 (Memory)

4.53k

4.28k (x0.94)

TOTAL

152.86k

145.45k (x0.95)

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

i3-9100T

Test#1 (Integers)

13.52k

13.6k (x1.01)

Test#2 (FP)

20.57k

20.58k (x1)

Test#3 (Generic, ZIP)

4.96k

4.76k (x0.96)

Test#1 (Memory)

7.91k

8.8k (x1.11)

TOTAL

46.96k

47.74k (x1.02)

Multithread

i3-8100

i3-9100T

Test#1 (Integers)

53.4k

50.18k (x0.94)

Test#2 (FP)

80.87k

75.99k (x0.94)

Test#3 (Generic, ZIP)

19.03k

17.66k (x0.93)

Test#1 (Memory)

4.29k

4.12k (x0.96)

TOTAL

157.59k

147.95k (x0.94)

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

i3-9100T

Test#1 (Integers)

24.47k

24.89k (x1.02)

Test#2 (FP)

21.52k

21.82k (x1.01)

Test#3 (Generic, ZIP)

4.95k

4.83k (x0.98)

Test#1 (Memory)

8.24k

8.63k (x1.05)

TOTAL

59.18k

60.16k (x1.02)

Multithread

i3-8100

i3-9100T

Test#1 (Integers)

92.86k

89.4k (x0.96)

Test#2 (FP)

83.05k

81.19k (x0.98)

Test#3 (Generic, ZIP)

18.55k

18.06k (x0.97)

Test#1 (Memory)

5.93k

4.24k (x0.71)

TOTAL

200.4k

192.88k (x0.96)

Performance/W

i3-8100

i3-9100T

Test#1 (Integers)

1429 points/W

2554 points/W

Test#2 (FP)

1278 points/W

2320 points/W

Test#3 (Generic, ZIP)

285 points/W

516 points/W

Test#1 (Memory)

91 points/W

121 points/W

TOTAL

3083 points/W

5511 points/W

Performance/GHz

i3-8100

i3-9100T

Test#1 (Integers)

6797 points/GHz

6727 points/GHz

Test#2 (FP)

5977 points/GHz

5897 points/GHz

Test#3 (Generic, ZIP)

1374 points/GHz

1304 points/GHz

Test#1 (Memory)

2290 points/GHz

2331 points/GHz

TOTAL

16438 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]

Test#2 (FP) [points vs time]

Test#3 (Generic, ZIP) [points vs time]

Test#1 (Memory) [points vs time]

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]

Test#2 (FP) [points vs time]

Test#3 (Generic, ZIP) [points vs time]

Test#1 (Memory) [points vs time]

Hardlimit Benchmark Central - Ver. 3.11.4