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Pentium G2020 vs Celeron 3855U


Description
The G2020 is based on Ivy Bridge architecture while the 3855U is based on Skylake.

Using the multithread performance as a reference, the G2020 gets a score of 42.4 k points while the 3855U gets 24.6 k points.

Summarizing, the G2020 is 1.7 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
406e3
Core
Ivy Bridge
Skylake-U
Architecture
Base frecuency
1.6 GHz
1.6 GHz
Boost frecuency
2.9 GHz
1.6 GHz
Socket
LGA 1155
BGA1356
Cores/Threads
2/2
2/2
TDP
55 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
3072 kB
2096 kB
Date
January 2013
December 2015
Mean monothread perf.
25.87k points
19.24k points
Mean multithread perf.
42.39k 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
G2020
3855U
Test#1 (Integers)
2.94k
1.64k (x0.56)
Test#2 (FP)
8.23k
6.72k (x0.82)
Test#3 (Generic, ZIP)
3.69k
2.06k (x0.56)
Test#1 (Memory)
2.46k
2.4k (x0.98)
TOTAL
17.33k
12.83k (x0.74)

Multithread

G2020

3855U
Test#1 (Integers)
5.54k
2.2k (x0.4)
Test#2 (FP)
15.47k
9.59k (x0.62)
Test#3 (Generic, ZIP)
7.06k
2.76k (x0.39)
Test#1 (Memory)
2.99k
2.27k (x0.76)
TOTAL
31.05k
16.81k (x0.54)

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
G2020
3855U
Test#1 (Integers)
9.9k
5.93k (x0.6)
Test#2 (FP)
9.01k
8.53k (x0.95)
Test#3 (Generic, ZIP)
3.87k
2.28k (x0.59)
Test#1 (Memory)
3.09k
2.5k (x0.81)
TOTAL
25.87k
19.24k (x0.74)

Multithread

G2020

3855U
Test#1 (Integers)
18.83k
7.87k (x0.42)
Test#2 (FP)
14.15k
11.28k (x0.8)
Test#3 (Generic, ZIP)
6.61k
2.91k (x0.44)
Test#1 (Memory)
2.81k
2.5k (x0.89)
TOTAL
42.39k
24.56k (x0.58)

Performance/W
G2020
3855U
Test#1 (Integers)
342 points/W
524 points/W
Test#2 (FP)
257 points/W
752 points/W
Test#3 (Generic, ZIP)
120 points/W
194 points/W
Test#1 (Memory)
51 points/W
166 points/W
TOTAL
771 points/W
1637 points/W

Performance/GHz
G2020
3855U
Test#1 (Integers)
3415 points/GHz
3706 points/GHz
Test#2 (FP)
3107 points/GHz
5333 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
1423 points/GHz
Test#1 (Memory)
1065 points/GHz
1562 points/GHz
TOTAL
8921 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.


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