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Celeron 3855U vs Core i3-6006U


Description
Both models 3855U and i3-6006U are based on Skylake architecture.

Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.

Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the i3-6006U gets 47.5 k points.

Summarizing, the i3-6006U is 1.9 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
406e3
Core
Skylake-U
Skylake-U
Architecture
Base frecuency
1.6 GHz
2 GHz
Socket
BGA1356
BGA1356
Cores/Threads
2/2
2/4
TDP
15 W
15 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
November 2016
Mean monothread perf.
19.24k points
31.3k points
Mean multithread perf.
24.56k points
68.38k 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
3855U
i3-6006U
Test#1 (Integers)
1.64k
2.02k (x1.23)
Test#2 (FP)
6.72k
8.2k (x1.22)
Test#3 (Generic, ZIP)
2.06k
2.63k (x1.28)
Test#1 (Memory)
2.4k
3.92k (x1.63)
TOTAL
12.83k
16.77k (x1.31)

Multithread

3855U

i3-6006U
Test#1 (Integers)
2.2k
3.83k (x1.74)
Test#2 (FP)
9.59k
17.17k (x1.79)
Test#3 (Generic, ZIP)
2.76k
5.77k (x2.09)
Test#1 (Memory)
2.27k
3.62k (x1.59)
TOTAL
16.81k
30.39k (x1.81)

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
i3-6006U
Test#1 (Integers)
5.93k
7.28k (x1.23)
Test#2 (FP)
8.53k
10.51k (x1.23)
Test#3 (Generic, ZIP)
2.28k
2.81k (x1.23)
Test#1 (Memory)
2.5k
2.88k (x1.15)
TOTAL
19.24k
23.48k (x1.22)

Multithread

3855U

i3-6006U
Test#1 (Integers)
7.87k
14.98k (x1.9)
Test#2 (FP)
11.28k
23.68k (x2.1)
Test#3 (Generic, ZIP)
2.91k
6.37k (x2.19)
Test#1 (Memory)
2.5k
2.43k (x0.98)
TOTAL
24.56k
47.46k (x1.93)

Performance/W
3855U
i3-6006U
Test#1 (Integers)
524 points/W
998 points/W
Test#2 (FP)
752 points/W
1579 points/W
Test#3 (Generic, ZIP)
194 points/W
425 points/W
Test#1 (Memory)
166 points/W
162 points/W
TOTAL
1637 points/W
3164 points/W

Performance/GHz
3855U
i3-6006U
Test#1 (Integers)
3706 points/GHz
3640 points/GHz
Test#2 (FP)
5333 points/GHz
5255 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
1404 points/GHz
Test#1 (Memory)
1562 points/GHz
1441 points/GHz
TOTAL
12024 points/GHz
11739 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