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Core i7-5820K vs i3-6006U


Description
The i7-5820K is based on Haswell architecture while the i3-6006U is based on Skylake.

Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the i3-6006U gets 49.9 k points.

Summarizing, the i7-5820K is 2.6 times faster than the i3-6006U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
406e3
Core
Haswell-E
Skylake-U
Architecture
Base frecuency
3.3 GHz
2 GHz
Boost frecuency
3.6 GHz
2 GHz
Socket
LGA 1150
BGA1356
Cores/Threads
6/12
2/4
TDP
140 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
2x32+2x32 kB
Cache L2
6x256 kB
2x256 kB
Cache L3
15360 kB
3072 kB
Date
September 2014
November 2016
Mean monothread perf.
31.53k points
30.66k points
Mean multithread perf.
129.06k points
67.91k 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
i7-5820K
i3-6006U
Test#1 (Integers)
3.82k
2.02k (x0.53)
Test#2 (FP)
9.64k
8.2k (x0.85)
Test#3 (Generic, ZIP)
4.29k
2.63k (x0.61)
Test#1 (Memory)
3.78k
3.92k (x1.04)
TOTAL
21.53k
16.77k (x0.78)

Multithread

i7-5820K

i3-6006U
Test#1 (Integers)
18.07k
3.83k (x0.21)
Test#2 (FP)
64.25k
17.17k (x0.27)
Test#3 (Generic, ZIP)
27.03k
5.77k (x0.21)
Test#1 (Memory)
8.03k
3.62k (x0.45)
TOTAL
117.38k
30.39k (x0.26)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-5820K
i3-6006U
Test#1 (Integers)
12.03k
7.34k (x0.61)
Test#2 (FP)
11.23k
11.37k (x1.01)
Test#3 (Generic, ZIP)
4.55k
2.74k (x0.6)
Test#1 (Memory)
3.72k
3.08k (x0.83)
TOTAL
31.53k
24.53k (x0.78)

Multithread

i7-5820K

i3-6006U
Test#1 (Integers)
49.48k
15.32k (x0.31)
Test#2 (FP)
52.21k
25.61k (x0.49)
Test#3 (Generic, ZIP)
19.7k
6.36k (x0.32)
Test#1 (Memory)
7.67k
2.58k (x0.34)
TOTAL
129.06k
49.87k (x0.39)

Performance/W
i7-5820K
i3-6006U
Test#1 (Integers)
353 points/W
1022 points/W
Test#2 (FP)
373 points/W
1707 points/W
Test#3 (Generic, ZIP)
141 points/W
424 points/W
Test#1 (Memory)
55 points/W
172 points/W
TOTAL
922 points/W
3325 points/W

Performance/GHz
i7-5820K
i3-6006U
Test#1 (Integers)
3343 points/GHz
3670 points/GHz
Test#2 (FP)
3119 points/GHz
5683 points/GHz
Test#3 (Generic, ZIP)
1264 points/GHz
1372 points/GHz
Test#1 (Memory)
1033 points/GHz
1540 points/GHz
TOTAL
8759 points/GHz
12265 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