Core i3-8100 vs i7-720QM

Description

The i3-8100 is based on Coffee Lake architecture while the i7-720QM is based on Nehalem.

Using the multithread performance as a reference, the i3-8100 gets a score of 152.9 k points while the i7-720QM gets 38.8 k points.

Summarizing, the i3-8100 is 3.9 times faster than the i7-720QM. To get a proper comparison between both models, take a look to the data shown below.

Specs

i3-8100

i7-720QM

CPUID

906eb

106e5

Core

Coffee Lake-S

Clarksfield

Architecture

Coffee Lake

Nehalem

Base frecuency

3.6 GHz

1.6 GHz

Boost frecuency

3.6 GHz

2.8 GHz

Socket

LGA 1151

988-pin micro-FCPGA8

Cores/Threads

4/4

4/8

TDP

65 W

45 W

Cache L1 (d+i)

4x32+4x32 kB

Cache L2

4x256 kB

Cache L3

6144 kB

Date

October 2017

September 2009

Mean monothread perf.

59.18k points

13.13k points

Mean multithread perf.

200.4k points

38.78k 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

i7-720QM

Test#1 (Integers)

3.72k

1.49k (x0.4)

Test#2 (FP)

15.33k

3.4k (x0.22)

Test#3 (Generic, ZIP)

4.71k

1.95k (x0.41)

Test#1 (Memory)

6.76k

2.08k (x0.31)

TOTAL

30.52k

8.92k (x0.29)

Multithread

i3-8100

i7-720QM

Test#1 (Integers)

14.48k

4.23k (x0.29)

Test#2 (FP)

59.59k

11.4k (x0.19)

Test#3 (Generic, ZIP)

18.07k

7.17k (x0.4)

Test#1 (Memory)

4.3k

4.51k (x1.05)

TOTAL

96.43k

27.32k (x0.28)

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

i7-720QM

Test#1 (Integers)

13.51k

5.49k (x0.41)

Test#2 (FP)

19.38k

3.55k (x0.18)

Test#3 (Generic, ZIP)

5.06k

2.01k (x0.4)

Test#1 (Memory)

7.87k

2.09k (x0.27)

TOTAL

45.81k

13.13k (x0.29)

Multithread

i3-8100

i7-720QM

Test#1 (Integers)

52.88k

15.06k (x0.28)

Test#2 (FP)

75.92k

12.15k (x0.16)

Test#3 (Generic, ZIP)

19.52k

7.18k (x0.37)

Test#1 (Memory)

4.53k

4.39k (x0.97)

TOTAL

152.86k

38.78k (x0.25)

Performance/W

i3-8100

i7-720QM

Test#1 (Integers)

814 points/W

335 points/W

Test#2 (FP)

1168 points/W

270 points/W

Test#3 (Generic, ZIP)

300 points/W

160 points/W

Test#1 (Memory)

70 points/W

98 points/W

TOTAL

2352 points/W

862 points/W

Performance/GHz

i3-8100

i7-720QM

Test#1 (Integers)

3753 points/GHz

1962 points/GHz

Test#2 (FP)

5383 points/GHz

1267 points/GHz

Test#3 (Generic, ZIP)

1405 points/GHz

717 points/GHz

Test#1 (Memory)

2185 points/GHz

745 points/GHz

TOTAL

12725 points/GHz

4691 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