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Celeron N4020 vs Core 2 Quad Q8400


Description
The N4020 is based on Goldmont Plus architecture while the Q8400 is based on Core.

Using the multithread performance as a reference, the N4020 gets a score of 25.3 k points while the Q8400 gets 51.9 k points.

Summarizing, the Q8400 is 2.1 times faster than the N4020. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
706a8
1067a
Core
Gemini Lake
Yorkfield
Architecture
Base frecuency
1.1 GHz
2.666 GHz
Boost frecuency
2.8 GHz
2.666 GHz
Socket
BGA 1090
LGA 775
Cores/Threads
2/2
4/4
TDP
6 W
95 W
Cache L1 (d+i)
2x32+2x24 kB
128+128 kB
Cache L2
4096 kB
4096 kB
Date
November 2019
April 2009
Mean monothread perf.
17.67k points
14.04k points
Mean multithread perf.
25.26k points
51.92k 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
N4020
Q8400
Test#1 (Integers)
1.25k
2.44k (x1.95)
Test#2 (FP)
5.19k
6.24k (x1.2)
Test#3 (Generic, ZIP)
2.56k
2.62k (x1.02)
Test#1 (Memory)
1.61k
1.43k (x0.89)
TOTAL
10.61k
12.73k (x1.2)

Multithread

N4020

Q8400
Test#1 (Integers)
1.68k
9.71k (x5.77)
Test#2 (FP)
7.29k
24.81k (x3.4)
Test#3 (Generic, ZIP)
3.51k
10.51k (x2.99)
Test#1 (Memory)
1.29k
2.03k (x1.57)
TOTAL
13.78k
47.05k (x3.42)

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
N4020
Q8400
Test#1 (Integers)
5.14k
3.08k (x0.6)
Test#2 (FP)
7.89k
6.8k (x0.86)
Test#3 (Generic, ZIP)
2.87k
2.73k (x0.95)
Test#1 (Memory)
1.76k
1.42k (x0.8)
TOTAL
17.67k
14.04k (x0.79)

Multithread

N4020

Q8400
Test#1 (Integers)
7.46k
12.25k (x1.64)
Test#2 (FP)
11.61k
26.84k (x2.31)
Test#3 (Generic, ZIP)
4.27k
10.82k (x2.53)
Test#1 (Memory)
1.91k
2.02k (x1.05)
TOTAL
25.26k
51.92k (x2.06)

Performance/W
N4020
Q8400
Test#1 (Integers)
1244 points/W
129 points/W
Test#2 (FP)
1936 points/W
283 points/W
Test#3 (Generic, ZIP)
712 points/W
114 points/W
Test#1 (Memory)
319 points/W
21 points/W
TOTAL
4211 points/W
547 points/W

Performance/GHz
N4020
Q8400
Test#1 (Integers)
1837 points/GHz
1157 points/GHz
Test#2 (FP)
2816 points/GHz
2551 points/GHz
Test#3 (Generic, ZIP)
1026 points/GHz
1025 points/GHz
Test#1 (Memory)
630 points/GHz
532 points/GHz
TOTAL
6309 points/GHz
5265 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