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Celeron 3855U vs N4120


Description
The 3855U is based on Skylake architecture while the N4120 is based on Goldmont Plus.

Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the N4120 gets 46.2 k points.

Summarizing, the N4120 is 1.9 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
706a8
Core
Skylake-U
Gemini Lake
Architecture
Base frecuency
1.6 GHz
1.1 GHz
Boost frecuency
1.6 GHz
2.6 GHz
Socket
BGA1356
BGA 1090
Cores/Threads
2/2
4/4
TDP
15 W
6 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x24 kB
Cache L2
2x256 kB
4096 kB
Cache L3
2096 kB
0 kB
Date
December 2015
November 2019
Mean monothread perf.
19.24k points
18.9k points
Mean multithread perf.
24.56k points
46.17k points

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
3855U
N4120
Test#1 (Integers)
5.93k
5.94k (x1)
Test#2 (FP)
8.53k
7.51k (x0.88)
Test#3 (Generic, ZIP)
2.28k
2.78k (x1.22)
Test#1 (Memory)
2.5k
2.67k (x1.07)
TOTAL
19.24k
18.9k (x0.98)

Multithread

3855U

N4120
Test#1 (Integers)
7.87k
15.02k (x1.91)
Test#2 (FP)
11.28k
19.77k (x1.75)
Test#3 (Generic, ZIP)
2.91k
7.71k (x2.65)
Test#1 (Memory)
2.5k
3.67k (x1.47)
TOTAL
24.56k
46.17k (x1.88)

Performance/W
3855U
N4120
Test#1 (Integers)
524 points/W
2503 points/W
Test#2 (FP)
752 points/W
3294 points/W
Test#3 (Generic, ZIP)
194 points/W
1286 points/W
Test#1 (Memory)
166 points/W
611 points/W
TOTAL
1637 points/W
7694 points/W

Performance/GHz
3855U
N4120
Test#1 (Integers)
3706 points/GHz
2286 points/GHz
Test#2 (FP)
5333 points/GHz
2887 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
1069 points/GHz
Test#1 (Memory)
1562 points/GHz
1029 points/GHz
TOTAL
12024 points/GHz
7271 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