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Core i7-720QM vs Celeron N4020


Description
The i7-720QM is based on Nehalem architecture while the N4020 is based on Goldmont Plus.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the N4020 gets 26.9 k points.

Summarizing, the i7-720QM is 1.4 times faster than the N4020. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
706a8
Core
Clarksfield
Gemini Lake
Architecture
Base frecuency
1.6 GHz
1.1 GHz
Boost frecuency
2.8 GHz
2.8 GHz
Socket
988-pin micro-FCPGA8
BGA 1090
Cores/Threads
4/8
2/2
TDP
45 W
6 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x24 kB
Cache L2
4x256 kB
4096 kB
Cache L3
6144 kB
0 kB
Date
September 2009
November 2019
Mean monothread perf.
13.13k points
17.88k points
Mean multithread perf.
38.78k points
26.91k 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
i7-720QM
N4020
Test#1 (Integers)
1.49k
1.25k (x0.84)
Test#2 (FP)
3.4k
5.19k (x1.52)
Test#3 (Generic, ZIP)
1.95k
2.56k (x1.32)
Test#1 (Memory)
2.08k
1.61k (x0.77)
TOTAL
8.92k
10.61k (x1.19)

Multithread

i7-720QM

N4020
Test#1 (Integers)
4.23k
1.68k (x0.4)
Test#2 (FP)
11.4k
7.29k (x0.64)
Test#3 (Generic, ZIP)
7.17k
3.51k (x0.49)
Test#1 (Memory)
4.51k
1.29k (x0.29)
TOTAL
27.32k
13.78k (x0.5)

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
i7-720QM
N4020
Test#1 (Integers)
5.49k
5.25k (x0.96)
Test#2 (FP)
3.55k
7.92k (x2.23)
Test#3 (Generic, ZIP)
2.01k
2.94k (x1.47)
Test#1 (Memory)
2.09k
1.77k (x0.85)
TOTAL
13.13k
17.88k (x1.36)

Multithread

i7-720QM

N4020
Test#1 (Integers)
15.06k
8.01k (x0.53)
Test#2 (FP)
12.15k
12.56k (x1.03)
Test#3 (Generic, ZIP)
7.18k
4.55k (x0.63)
Test#1 (Memory)
4.39k
1.78k (x0.41)
TOTAL
38.78k
26.91k (x0.69)

Performance/W
i7-720QM
N4020
Test#1 (Integers)
335 points/W
1336 points/W
Test#2 (FP)
270 points/W
2094 points/W
Test#3 (Generic, ZIP)
160 points/W
758 points/W
Test#1 (Memory)
98 points/W
297 points/W
TOTAL
862 points/W
4484 points/W

Performance/GHz
i7-720QM
N4020
Test#1 (Integers)
1962 points/GHz
1875 points/GHz
Test#2 (FP)
1267 points/GHz
2828 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
1050 points/GHz
Test#1 (Memory)
745 points/GHz
631 points/GHz
TOTAL
4691 points/GHz
6384 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