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Celeron 3855U vs Pentium Gold 5405U


Description
The 3855U is based on Skylake architecture while the 5405U is based on Whiskey Lake.

Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the 5405U gets 48.8 k points.

Summarizing, the 5405U is 2 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
806eb
Core
Skylake-U
Whiskey Lake-U
Architecture
Base frecuency
1.6 GHz
2.3 GHz
Socket
BGA1356
BGA 1528
Cores/Threads
2/2
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
2096 kB
2048 kB
Date
December 2015
January 2019
Mean monothread perf.
19.24k points
21.34k points
Mean multithread perf.
24.56k points
48.83k 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
5405U
Test#1 (Integers)
5.93k
7.01k (x1.18)
Test#2 (FP)
8.53k
9.51k (x1.11)
Test#3 (Generic, ZIP)
2.28k
2.31k (x1.01)
Test#1 (Memory)
2.5k
2.52k (x1.01)
TOTAL
19.24k
21.34k (x1.11)

Multithread

3855U

5405U
Test#1 (Integers)
7.87k
16.03k (x2.04)
Test#2 (FP)
11.28k
24.11k (x2.14)
Test#3 (Generic, ZIP)
2.91k
5.59k (x1.92)
Test#1 (Memory)
2.5k
3.1k (x1.24)
TOTAL
24.56k
48.83k (x1.99)

Performance/W
3855U
5405U
Test#1 (Integers)
524 points/W
1069 points/W
Test#2 (FP)
752 points/W
1607 points/W
Test#3 (Generic, ZIP)
194 points/W
372 points/W
Test#1 (Memory)
166 points/W
207 points/W
TOTAL
1637 points/W
3255 points/W

Performance/GHz
3855U
5405U
Test#1 (Integers)
3706 points/GHz
3046 points/GHz
Test#2 (FP)
5333 points/GHz
4134 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
1004 points/GHz
Test#1 (Memory)
1562 points/GHz
1094 points/GHz
TOTAL
12024 points/GHz
9278 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