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Core i7-5820K vs i3-6100


Description
The i7-5820K is based on Haswell architecture while the i3-6100 is based on Skylake.

Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the i3-6100 gets 94.1 k points.

Summarizing, the i7-5820K is 1.4 times faster than the i3-6100 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
506e3
Core
Haswell-E
Skylake-S
Architecture
Base frecuency
3.3 GHz
3.7 GHz
Boost frecuency
3.6 GHz
3.7 GHz
Socket
LGA 1150
LGA 1151
Cores/Threads
6/12
2/2
TDP
140 W
51 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
15360 kB
4096 kB
Date
September 2014
September 2015
Mean monothread perf.
31.53k points
52.84k points
Mean multithread perf.
129.06k points
112.28k 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
i3-6100
Test#1 (Integers)
3.82k
3.81k (x1)
Test#2 (FP)
9.64k
15.65k (x1.62)
Test#3 (Generic, ZIP)
4.29k
5.14k (x1.2)
Test#1 (Memory)
3.78k
4.28k (x1.13)
TOTAL
21.53k
28.89k (x1.34)

Multithread

i7-5820K

i3-6100
Test#1 (Integers)
18.07k
7.75k (x0.43)
Test#2 (FP)
64.25k
37.33k (x0.58)
Test#3 (Generic, ZIP)
27.03k
12.13k (x0.45)
Test#1 (Memory)
8.03k
3.56k (x0.44)
TOTAL
117.38k
60.77k (x0.52)

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
i3-6100
Test#1 (Integers)
12.03k
13.78k (x1.14)
Test#2 (FP)
11.23k
21.21k (x1.89)
Test#3 (Generic, ZIP)
4.55k
5.2k (x1.14)
Test#1 (Memory)
3.72k
3.73k (x1)
TOTAL
31.53k
43.92k (x1.39)

Multithread

i7-5820K

i3-6100
Test#1 (Integers)
49.48k
29.02k (x0.59)
Test#2 (FP)
52.21k
49.55k (x0.95)
Test#3 (Generic, ZIP)
19.7k
12.3k (x0.62)
Test#1 (Memory)
7.67k
3.28k (x0.43)
TOTAL
129.06k
94.15k (x0.73)

Performance/W
i7-5820K
i3-6100
Test#1 (Integers)
353 points/W
569 points/W
Test#2 (FP)
373 points/W
972 points/W
Test#3 (Generic, ZIP)
141 points/W
241 points/W
Test#1 (Memory)
55 points/W
64 points/W
TOTAL
922 points/W
1846 points/W

Performance/GHz
i7-5820K
i3-6100
Test#1 (Integers)
3343 points/GHz
3723 points/GHz
Test#2 (FP)
3119 points/GHz
5733 points/GHz
Test#3 (Generic, ZIP)
1264 points/GHz
1406 points/GHz
Test#1 (Memory)
1033 points/GHz
1009 points/GHz
TOTAL
8759 points/GHz
11871 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