Celeron 3855U vs Core i5-520M
Description
The 3855U is based on Skylake architecture while the i5-520M is based on Westmere.
Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the i5-520M gets 33.1 k points.
Summarizing, the i5-520M is 1.3 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the i5-520M gets 33.1 k points.
Summarizing, the i5-520M is 1.3 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
406e3
20652
Core
Skylake-U
Arrandale
Base frecuency
1.6 GHz
2.4 GHz
Boost frecuency
1.6 GHz
2.933 GHz
Socket
BGA1356
FC-PGA 988
Cores/Threads
2/2
2/4
TDP
15 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
2096 kB
3072 kB
Date
December 2015
January 2010
Mean monothread perf.
19.24k points
15.93k points
Mean multithread perf.
24.56k points
33.14k 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
i5-520M
Test#1 (Integers)
5.93k
6.67k (x1.13)
Test#2 (FP)
8.53k
4.59k (x0.54)
Test#3 (Generic, ZIP)
2.28k
2.49k (x1.09)
Test#1 (Memory)
2.5k
2.18k (x0.87)
TOTAL
19.24k
15.93k (x0.83)
Multithread
3855U
i5-520M
Test#1 (Integers)
7.87k
13.75k (x1.75)
Test#2 (FP)
11.28k
10.03k (x0.89)
Test#3 (Generic, ZIP)
2.91k
6.67k (x2.29)
Test#1 (Memory)
2.5k
2.68k (x1.08)
TOTAL
24.56k
33.14k (x1.35)
Performance/W
3855U
i5-520M
Test#1 (Integers)
524 points/W
393 points/W
Test#2 (FP)
752 points/W
287 points/W
Test#3 (Generic, ZIP)
194 points/W
191 points/W
Test#1 (Memory)
166 points/W
77 points/W
TOTAL
1637 points/W
947 points/W
Performance/GHz
3855U
i5-520M
Test#1 (Integers)
3706 points/GHz
2275 points/GHz
Test#2 (FP)
5333 points/GHz
1567 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
849 points/GHz
Test#1 (Memory)
1562 points/GHz
742 points/GHz
TOTAL
12024 points/GHz
5433 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4