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Core i3-6100 vs i7-4790


Description
The i3-6100 is based on Skylake architecture while the i7-4790 is based on Haswell.

Using the multithread performance as a reference, the i3-6100 gets a score of 112.3 k points while the i7-4790 gets 173.9 k points.

Summarizing, the i7-4790 is 1.5 times faster than the i3-6100 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306c3
Core
Skylake-S
Haswell
Architecture
Base frecuency
3.7 GHz
3.6 GHz
Boost frecuency
3.7 GHz
4 GHz
Socket
LGA 1151
LGA 1150
Cores/Threads
2/2
4/8
TDP
51 W
84 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
September 2015
May 2014
Mean monothread perf.
52.84k points
44.73k points
Mean multithread perf.
112.28k points
173.89k 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
i3-6100
i7-4790
Test#1 (Integers)
3.81k
4.51k (x1.18)
Test#2 (FP)
15.65k
11.24k (x0.72)
Test#3 (Generic, ZIP)
5.14k
5.03k (x0.98)
Test#1 (Memory)
4.28k
5.02k (x1.17)
TOTAL
28.89k
25.8k (x0.89)

Multithread

i3-6100

i7-4790
Test#1 (Integers)
7.75k
15.72k (x2.03)
Test#2 (FP)
37.33k
54.99k (x1.47)
Test#3 (Generic, ZIP)
12.13k
23.87k (x1.97)
Test#1 (Memory)
3.56k
5.48k (x1.54)
TOTAL
60.77k
100.06k (x1.65)

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
i3-6100
i7-4790
Test#1 (Integers)
13.76k
13.52k (x0.98)
Test#2 (FP)
19.96k
11.94k (x0.6)
Test#3 (Generic, ZIP)
5.44k
4.96k (x0.91)
Test#1 (Memory)
4.4k
4.84k (x1.1)
TOTAL
43.55k
35.25k (x0.81)

Multithread

i3-6100

i7-4790
Test#1 (Integers)
28.99k
54.7k (x1.89)
Test#2 (FP)
45.75k
52.41k (x1.15)
Test#3 (Generic, ZIP)
12.72k
24.5k (x1.93)
Test#1 (Memory)
3.68k
6.77k (x1.84)
TOTAL
91.14k
138.37k (x1.52)

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
i3-6100
i7-4790
Test#1 (Integers)
13.78k
14.07k (x1.02)
Test#2 (FP)
21.21k
12.63k (x0.6)
Test#3 (Generic, ZIP)
5.2k
5.35k (x1.03)
Test#1 (Memory)
3.73k
4.98k (x1.33)
TOTAL
43.92k
37.03k (x0.84)

Multithread

i3-6100

i7-4790
Test#1 (Integers)
29.02k
57.88k (x1.99)
Test#2 (FP)
49.55k
60.83k (x1.23)
Test#3 (Generic, ZIP)
12.3k
24.4k (x1.98)
Test#1 (Memory)
3.28k
6.95k (x2.12)
TOTAL
94.15k
150.07k (x1.59)

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i3-6100
i7-4790
Test#1 (Integers)
22.89k
22.19k (x0.97)
Test#2 (FP)
21.04k
12.45k (x0.59)
Test#3 (Generic, ZIP)
4.9k
5.11k (x1.04)
Test#1 (Memory)
4.01k
4.98k (x1.24)
TOTAL
52.84k
44.73k (x0.85)

Multithread

i3-6100

i7-4790
Test#1 (Integers)
50.05k
87.14k (x1.74)
Test#2 (FP)
47.13k
58k (x1.23)
Test#3 (Generic, ZIP)
11.38k
22.75k (x2)
Test#1 (Memory)
3.72k
6k (x1.61)
TOTAL
112.28k
173.89k (x1.55)

Performance/W
i3-6100
i7-4790
Test#1 (Integers)
981 points/W
1037 points/W
Test#2 (FP)
924 points/W
691 points/W
Test#3 (Generic, ZIP)
223 points/W
271 points/W
Test#1 (Memory)
73 points/W
71 points/W
TOTAL
2202 points/W
2070 points/W

Performance/GHz
i3-6100
i7-4790
Test#1 (Integers)
6187 points/GHz
5547 points/GHz
Test#2 (FP)
5686 points/GHz
3113 points/GHz
Test#3 (Generic, ZIP)
1325 points/GHz
1279 points/GHz
Test#1 (Memory)
1084 points/GHz
1244 points/GHz
TOTAL
14282 points/GHz
11183 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