Core i3-9100 vs i3-8100

Description

Both models i3-9100 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 i3-9100 gets a score of 229.2 k points while the i3-8100 gets 200.4 k points.

Summarizing, the i3-9100 is 1.1 times faster than the i3-8100. To get a proper comparison between both models, take a look to the data shown below.

Specs

i3-9100

i3-8100

CPUID

906eb

Core

Coffee Lake-S

Architecture

Coffee Lake

Base frecuency

3.6 GHz

Boost frecuency

4.2 GHz

3.6 GHz

Socket

LGA 1151

Cores/Threads

4/4

TDP

65 W

Cache L1 (d+i)

4x32+4x32 kB

Cache L2

4x256 kB

Cache L3

6144 kB

Date

April 2019

October 2017

Mean monothread perf.

66.74k points

59.18k points

Mean multithread perf.

229.2k 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

i3-9100

i3-8100

Test#1 (Integers)

4.3k

3.72k (x0.86)

Test#2 (FP)

17.79k

15.33k (x0.86)

Test#3 (Generic, ZIP)

5.58k

4.71k (x0.84)

Test#1 (Memory)

8.86k

6.76k (x0.76)

TOTAL

36.53k

30.52k (x0.84)

Multithread

i3-9100

i3-8100

Test#1 (Integers)

15.99k

14.48k (x0.91)

Test#2 (FP)

66.31k

59.59k (x0.9)

Test#3 (Generic, ZIP)

20.75k

18.07k (x0.87)

Test#1 (Memory)

4.44k

4.3k (x0.97)

TOTAL

107.49k

96.43k (x0.9)

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

i3-9100

i3-8100

Test#1 (Integers)

15.53k

13.51k (x0.87)

Test#2 (FP)

22.21k

19.38k (x0.87)

Test#3 (Generic, ZIP)

5.79k

5.06k (x0.87)

Test#1 (Memory)

8.31k

7.87k (x0.95)

TOTAL

51.84k

45.81k (x0.88)

Multithread

i3-9100

i3-8100

Test#1 (Integers)

58.56k

52.88k (x0.9)

Test#2 (FP)

86.17k

75.92k (x0.88)

Test#3 (Generic, ZIP)

22.4k

19.52k (x0.87)

Test#1 (Memory)

4.55k

4.53k (x0.99)

TOTAL

171.69k

152.86k (x0.89)

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

i3-9100

i3-8100

Test#1 (Integers)

14.81k

13.52k (x0.91)

Test#2 (FP)

22.15k

20.57k (x0.93)

Test#3 (Generic, ZIP)

5.42k

4.96k (x0.92)

Test#1 (Memory)

4.8k

7.91k (x1.65)

TOTAL

47.17k

46.96k (x1)

Multithread

i3-9100

i3-8100

Test#1 (Integers)

52.08k

53.4k (x1.03)

Test#2 (FP)

87.45k

80.87k (x0.92)

Test#3 (Generic, ZIP)

20.98k

19.03k (x0.91)

Test#1 (Memory)

4.24k

4.29k (x1.01)

TOTAL

164.75k

157.59k (x0.96)

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

i3-9100

i3-8100

Test#1 (Integers)

28.03k

24.47k (x0.87)

Test#2 (FP)

24.5k

21.52k (x0.88)

Test#3 (Generic, ZIP)

5.73k

4.95k (x0.86)

Test#1 (Memory)

8.48k

8.24k (x0.97)

TOTAL

66.74k

59.18k (x0.89)

Multithread

i3-9100

i3-8100

Test#1 (Integers)

107.5k

92.86k (x0.86)

Test#2 (FP)

95.11k

83.05k (x0.87)

Test#3 (Generic, ZIP)

22.02k

18.55k (x0.84)

Test#1 (Memory)

4.57k

5.93k (x1.3)

TOTAL

229.2k

200.4k (x0.87)

Performance/W

i3-9100

i3-8100

Test#1 (Integers)

1654 points/W

1429 points/W

Test#2 (FP)

1463 points/W

1278 points/W

Test#3 (Generic, ZIP)

339 points/W

285 points/W

Test#1 (Memory)

70 points/W

91 points/W

TOTAL

3526 points/W

3083 points/W

Performance/GHz

i3-9100

i3-8100

Test#1 (Integers)

6675 points/GHz

6797 points/GHz

Test#2 (FP)

5833 points/GHz

5977 points/GHz

Test#3 (Generic, ZIP)

1365 points/GHz

1374 points/GHz

Test#1 (Memory)

2018 points/GHz

2290 points/GHz

TOTAL

15891 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]

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