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Pentium Gold 5405U vs Celeron 3855U


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

Using the multithread performance as a reference, the 5405U gets a score of 48.8 k points while the 3855U gets 24.6 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
806eb
406e3
Core
Whiskey Lake-U
Skylake-U
Architecture
Base frecuency
2.3 GHz
1.6 GHz
Socket
BGA 1528
BGA1356
Cores/Threads
2/4
2/2
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
2048 kB
2096 kB
Date
January 2019
December 2015
Mean monothread perf.
21.34k points
19.24k points
Mean multithread perf.
48.83k points
24.56k 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
5405U
3855U
Test#1 (Integers)
7.01k
5.93k (x0.85)
Test#2 (FP)
9.51k
8.53k (x0.9)
Test#3 (Generic, ZIP)
2.31k
2.28k (x0.99)
Test#1 (Memory)
2.52k
2.5k (x0.99)
TOTAL
21.34k
19.24k (x0.9)

Multithread

5405U

3855U
Test#1 (Integers)
16.03k
7.87k (x0.49)
Test#2 (FP)
24.11k
11.28k (x0.47)
Test#3 (Generic, ZIP)
5.59k
2.91k (x0.52)
Test#1 (Memory)
3.1k
2.5k (x0.8)
TOTAL
48.83k
24.56k (x0.5)

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

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