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Celeron 3855U vs J4105


Description
The 3855U is based on Skylake architecture while the J4105 is based on Goldmont Plus.

Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the J4105 gets 61.5 k points.

Summarizing, the J4105 is 2.5 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
706a1
Core
Skylake-U
Gemini Lake
Architecture
Base frecuency
1.6 GHz
1.5 GHz
Boost frecuency
1.6 GHz
2.5 GHz
Socket
BGA1356
BGA 1090
Cores/Threads
2/2
4/4
TDP
15 W
10 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
December 2017
Mean monothread perf.
19.24k points
18.22k points
Mean multithread perf.
24.56k points
61.49k 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
3855U
J4105
Test#1 (Integers)
1.64k
1.68k (x1.02)
Test#2 (FP)
6.72k
5.29k (x0.79)
Test#3 (Generic, ZIP)
2.06k
2.75k (x1.33)
Test#1 (Memory)
2.4k
3.44k (x1.43)
TOTAL
12.83k
13.16k (x1.03)

Multithread

3855U

J4105
Test#1 (Integers)
2.2k
6.39k (x2.91)
Test#2 (FP)
9.59k
20.02k (x2.09)
Test#3 (Generic, ZIP)
2.76k
10.22k (x3.71)
Test#1 (Memory)
2.27k
4.94k (x2.18)
TOTAL
16.81k
41.57k (x2.47)

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
J4105
Test#1 (Integers)
5.93k
4.9k (x0.83)
Test#2 (FP)
8.53k
7.26k (x0.85)
Test#3 (Generic, ZIP)
2.28k
2.75k (x1.21)
Test#1 (Memory)
2.5k
3.32k (x1.33)
TOTAL
19.24k
18.22k (x0.95)

Multithread

3855U

J4105
Test#1 (Integers)
7.87k
18.84k (x2.4)
Test#2 (FP)
11.28k
27.45k (x2.43)
Test#3 (Generic, ZIP)
2.91k
10.35k (x3.56)
Test#1 (Memory)
2.5k
4.85k (x1.94)
TOTAL
24.56k
61.49k (x2.5)

Performance/W
3855U
J4105
Test#1 (Integers)
524 points/W
1884 points/W
Test#2 (FP)
752 points/W
2745 points/W
Test#3 (Generic, ZIP)
194 points/W
1035 points/W
Test#1 (Memory)
166 points/W
485 points/W
TOTAL
1637 points/W
6149 points/W

Performance/GHz
3855U
J4105
Test#1 (Integers)
3706 points/GHz
1958 points/GHz
Test#2 (FP)
5333 points/GHz
2902 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
1102 points/GHz
Test#1 (Memory)
1562 points/GHz
1327 points/GHz
TOTAL
12024 points/GHz
7289 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