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Core i3-550 vs Pentium 4405U


Description
The i3-550 is based on Westmere architecture while the 4405U is based on Skylake.

Using the multithread performance as a reference, the i3-550 gets a score of 41.5 k points while the 4405U gets 51.1 k points.

Summarizing, the 4405U is 1.2 times faster than the i3-550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20655
406e3
Core
Clarkdale
Skylake-U
Architecture
Base frecuency
3.2 GHz
2.1 GHz
Socket
LGA 1156
BGA 1356
Cores/Threads
2/2
2/4
TDP
73 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
4096 kB
2048 kB
Date
May 2010

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
i3-550
4405U
Test#1 (Integers)
7919
7448 (-5.95%)
Test#2 (FP)
5373
10514 (95.70%)
Test#3 (Generic, ZIP)
3181
2780 (-12.60%)
Test#1 (Memory)
2720
2586 (-4.91%)
TOTAL
19192
23328 (21.55%)

Multithread

i3-550

4405U
Test#1 (Integers)
17202
16097 (-6.43%)
Test#2 (FP)
12718
25440 (100.03%)
Test#3 (Generic, ZIP)
8714
6988 (-19.80%)
Test#1 (Memory)
2861
2578 (-9.91%)
TOTAL
41495
51103 (23.15%)

Performance/W
i3-550
4405U
Test#1 (Integers)
236 points/W
1073 points/W
Test#2 (FP)
174 points/W
1696 points/W
Test#3 (Generic, ZIP)
119 points/W
466 points/W
Test#1 (Memory)
39 points/W
172 points/W
TOTAL
568 points/W
3407 points/W

Performance/GHz
i3-550
4405U
Test#1 (Integers)
2475 points/GHz
3547 points/GHz
Test#2 (FP)
1679 points/GHz
5007 points/GHz
Test#3 (Generic, ZIP)
994 points/GHz
1324 points/GHz
Test#1 (Memory)
850 points/GHz
1232 points/GHz
TOTAL
5998 points/GHz
11109 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. 3.7.8