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Core i3-6006U vs Celeron 3855U


Description
Both models i3-6006U and 3855U 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 i3-6006U gets a score of 47.5 k points while the 3855U gets 24.6 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
2 GHz
1.6 GHz
Socket
BGA1356
BGA1356
Cores/Threads
2/4
2/2
TDP
15 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
November 2016
December 2015
Mean monothread perf.
31.3k points
19.24k points
Mean multithread perf.
68.38k 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
i3-6006U
3855U
Test#1 (Integers)
2.02k
1.64k (x0.81)
Test#2 (FP)
8.2k
6.72k (x0.82)
Test#3 (Generic, ZIP)
2.63k
2.06k (x0.78)
Test#1 (Memory)
3.92k
2.4k (x0.61)
TOTAL
16.77k
12.83k (x0.76)

Multithread

i3-6006U

3855U
Test#1 (Integers)
3.83k
2.2k (x0.57)
Test#2 (FP)
17.17k
9.59k (x0.56)
Test#3 (Generic, ZIP)
5.77k
2.76k (x0.48)
Test#1 (Memory)
3.62k
2.27k (x0.63)
TOTAL
30.39k
16.81k (x0.55)

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
i3-6006U
3855U
Test#1 (Integers)
7.28k
5.93k (x0.81)
Test#2 (FP)
10.51k
8.53k (x0.81)
Test#3 (Generic, ZIP)
2.81k
2.28k (x0.81)
Test#1 (Memory)
2.88k
2.5k (x0.87)
TOTAL
23.48k
19.24k (x0.82)

Multithread

i3-6006U

3855U
Test#1 (Integers)
14.98k
7.87k (x0.53)
Test#2 (FP)
23.68k
11.28k (x0.48)
Test#3 (Generic, ZIP)
6.37k
2.91k (x0.46)
Test#1 (Memory)
2.43k
2.5k (x1.03)
TOTAL
47.46k
24.56k (x0.52)

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

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