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Pentium 4405U vs N3540


Description
The 4405U is based on Skylake architecture while the N3540 is based on Silvermont.

Using the multithread performance as a reference, the 4405U gets a score of 51.1 k points while the N3540 gets 37.5 k points.

Summarizing, the 4405U is 1.4 times faster than the N3540. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
30678
Core
Skylake-U
Bay Trail-M
Architecture
Base frecuency
2.1 GHz
2.167 GHz
Boost frecuency
2.1 GHz
2.667 GHz
Socket
BGA 1356
BGA1170
Cores/Threads
2/4
4/4
TDP
15 W
7,5 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x24 kB
Cache L2
2x256 kB
2x1024 kB
Cache L3
2048 kB
kB
Date
July 2014
Mean monothread perf.
23.33k points
10.72k points
Mean multithread perf.
51.1k points
37.5k 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
N3540
Test#1 (Integers)
7.45k
4.97k (x0.67)
Test#2 (FP)
10.51k
2.58k (x0.25)
Test#3 (Generic, ZIP)
2.78k
1.98k (x0.71)
Test#1 (Memory)
2.59k
1.2k (x0.46)
TOTAL
23.33k
10.72k (x0.46)

Multithread

4405U

N3540
Test#1 (Integers)
16.1k
18.92k (x1.18)
Test#2 (FP)
25.44k
9.67k (x0.38)
Test#3 (Generic, ZIP)
6.99k
7.37k (x1.05)
Test#1 (Memory)
2.58k
1.54k (x0.6)
TOTAL
51.1k
37.5k (x0.73)

Performance/W
4405U
N3540
Test#1 (Integers)
1073 points/W
2703 points/W
Test#2 (FP)
1696 points/W
1382 points/W
Test#3 (Generic, ZIP)
466 points/W
1053 points/W
Test#1 (Memory)
172 points/W
220 points/W
TOTAL
3407 points/W
5357 points/W

Performance/GHz
4405U
N3540
Test#1 (Integers)
3547 points/GHz
1864 points/GHz
Test#2 (FP)
5007 points/GHz
967 points/GHz
Test#3 (Generic, ZIP)
1324 points/GHz
741 points/GHz
Test#1 (Memory)
1232 points/GHz
448 points/GHz
TOTAL
11109 points/GHz
4020 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