Core i3-2120 vs Celeron 3855U
Description
The i3-2120 is based on Sandy Bridge architecture while the 3855U is based on Skylake.
Using the multithread performance as a reference, the i3-2120 gets a score of 51.2 k points while the 3855U gets 24.6 k points.
Summarizing, the i3-2120 is 2.1 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 i3-2120 gets a score of 51.2 k points while the 3855U gets 24.6 k points.
Summarizing, the i3-2120 is 2.1 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
3.3 GHz
1.6 GHz
Socket
LGA 1155
BGA1356
Cores/Threads
2/2
2/2
TDP
65 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 2012
December 2015
Mean monothread perf.
24.23k points
19.24k points
Mean multithread perf.
53.48k 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
i3-2120
3855U
Test#1 (Integers)
2.7k
1.64k (x0.61)
Test#2 (FP)
7.4k
6.72k (x0.91)
Test#3 (Generic, ZIP)
3.82k
2.06k (x0.54)
Test#1 (Memory)
2.99k
2.4k (x0.8)
TOTAL
16.91k
12.83k (x0.76)
Multithread
i3-2120
3855U
Test#1 (Integers)
6.36k
2.2k (x0.35)
Test#2 (FP)
16.87k
9.59k (x0.57)
Test#3 (Generic, ZIP)
9.4k
2.76k (x0.29)
Test#1 (Memory)
2.91k
2.27k (x0.78)
TOTAL
35.53k
16.81k (x0.47)
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
i3-2120
3855U
Test#1 (Integers)
9.82k
5.93k (x0.6)
Test#2 (FP)
7.9k
8.53k (x1.08)
Test#3 (Generic, ZIP)
3.98k
2.28k (x0.57)
Test#1 (Memory)
2.95k
2.5k (x0.85)
TOTAL
24.64k
19.24k (x0.78)
Multithread
i3-2120
3855U
Test#1 (Integers)
20.46k
7.87k (x0.38)
Test#2 (FP)
17.77k
11.28k (x0.63)
Test#3 (Generic, ZIP)
10.03k
2.91k (x0.29)
Test#1 (Memory)
2.94k
2.5k (x0.85)
TOTAL
51.21k
24.56k (x0.48)
Performance/W
i3-2120
3855U
Test#1 (Integers)
315 points/W
524 points/W
Test#2 (FP)
273 points/W
752 points/W
Test#3 (Generic, ZIP)
154 points/W
194 points/W
Test#1 (Memory)
45 points/W
166 points/W
TOTAL
788 points/W
1637 points/W
Performance/GHz
i3-2120
3855U
Test#1 (Integers)
2974 points/GHz
3706 points/GHz
Test#2 (FP)
2393 points/GHz
5333 points/GHz
Test#3 (Generic, ZIP)
1206 points/GHz
1423 points/GHz
Test#1 (Memory)
895 points/GHz
1562 points/GHz
TOTAL
7468 points/GHz
12024 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