Core i5-2520M vs Celeron 3855U
Description
The i5-2520M is based on Sandy Bridge architecture while the 3855U is based on Skylake.
Using the multithread performance as a reference, the i5-2520M gets a score of 34.2 k points while the 3855U gets 16.8 k points.
Summarizing, the i5-2520M is 2 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 i5-2520M gets a score of 34.2 k points while the 3855U gets 16.8 k points.
Summarizing, the i5-2520M 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
206a7
406e3
Core
Sandy Bridge
Skylake-U
Base frecuency
2.5 GHz
1.6 GHz
Boost frecuency
3.2 GHz
1.6 GHz
Socket
BGA1023
BGA1356
Cores/Threads
2/2
2/2
TDP
35 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
2096 kB
Date
February 2011
December 2015
Mean monothread perf.
24.13k points
19.24k points
Mean multithread perf.
50.23k points
24.56k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i5-2520M
3855U
Test#1 (Integers)
2.69k
1.64k (x0.61)
Test#2 (FP)
7.28k
6.72k (x0.92)
Test#3 (Generic, ZIP)
3.84k
2.06k (x0.54)
Test#1 (Memory)
3.05k
2.4k (x0.79)
TOTAL
16.86k
12.83k (x0.76)
Multithread
i5-2520M
3855U
Test#1 (Integers)
6.08k
2.2k (x0.36)
Test#2 (FP)
16.15k
9.59k (x0.59)
Test#3 (Generic, ZIP)
8.87k
2.76k (x0.31)
Test#1 (Memory)
3.06k
2.27k (x0.74)
TOTAL
34.15k
16.81k (x0.49)
Performance/W
i5-2520M
3855U
Test#1 (Integers)
174 points/W
146 points/W
Test#2 (FP)
461 points/W
639 points/W
Test#3 (Generic, ZIP)
253 points/W
184 points/W
Test#1 (Memory)
87 points/W
151 points/W
TOTAL
976 points/W
1121 points/W
Performance/GHz
i5-2520M
3855U
Test#1 (Integers)
840 points/GHz
1027 points/GHz
Test#2 (FP)
2275 points/GHz
4201 points/GHz
Test#3 (Generic, ZIP)
1200 points/GHz
1290 points/GHz
Test#1 (Memory)
954 points/GHz
1502 points/GHz
TOTAL
5269 points/GHz
8020 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