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Pentium 4405U vs A9 9420


Description
The 4405U is based on Skylake architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the 4405U gets a score of 51.1 k points while the 9420 gets 28.9 k points.

Summarizing, the 4405U is 1.8 times faster than the 9420. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
670f00
Core
Skylake-U
Stoney Ridge
Architecture
Base frecuency
2.1 GHz
3 GHz
Boost frecuency
2.1 GHz
3.6 GHz
Socket
BGA 1356
Micro-BGA
Cores/Threads
2/4
2/2
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
96+2x32 kB
Cache L2
2x256 kB
1024 kB
Cache L3
2048 kB
0 kB
Date
April 2017
Mean monothread perf.
23.33k points
33.09k points
Mean multithread perf.
51.1k points
46.33k 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
4405U
9420
Test#1 (Integers)
7.45k
8.41k (x1.13)
Test#2 (FP)
10.51k
11.48k (x1.09)
Test#3 (Generic, ZIP)
2.78k
3.29k (x1.18)
Test#1 (Memory)
2.59k
2.24k (x0.86)
TOTAL
23.33k
25.41k (x1.09)

Multithread

4405U

9420
Test#1 (Integers)
16.1k
11.25k (x0.7)
Test#2 (FP)
25.44k
13.69k (x0.54)
Test#3 (Generic, ZIP)
6.99k
2.09k (x0.3)
Test#1 (Memory)
2.58k
1.87k (x0.72)
TOTAL
51.1k
28.89k (x0.57)

Performance/W
4405U
9420
Test#1 (Integers)
1073 points/W
750 points/W
Test#2 (FP)
1696 points/W
912 points/W
Test#3 (Generic, ZIP)
466 points/W
139 points/W
Test#1 (Memory)
172 points/W
125 points/W
TOTAL
3407 points/W
1926 points/W

Performance/GHz
4405U
9420
Test#1 (Integers)
3547 points/GHz
2336 points/GHz
Test#2 (FP)
5007 points/GHz
3188 points/GHz
Test#3 (Generic, ZIP)
1324 points/GHz
913 points/GHz
Test#1 (Memory)
1232 points/GHz
621 points/GHz
TOTAL
11109 points/GHz
7058 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