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Core i7-4790 vs i5-6500


Description
The i7-4790 is based on Haswell architecture while the i5-6500 is based on Skylake.

Using the multithread performance as a reference, the i7-4790 gets a score of 173.9 k points while the i5-6500 gets 179.4 k points.

Summarizing, the i5-6500 is 1 times faster than the i7-4790 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
506e3
Core
Haswell
Skylake-S
Architecture
Base frecuency
3.6 GHz
3.2 GHz
Boost frecuency
4 GHz
3.6 GHz
Socket
LGA 1150
LGA 1151
Cores/Threads
4/8
4/4
TDP
84 W
65 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
May 2014
September 2015
Mean monothread perf.
44.73k points
53.7k points
Mean multithread perf.
173.89k points
179.44k 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
i7-4790
i5-6500
Test#1 (Integers)
4.51k
3.46k (x0.77)
Test#2 (FP)
11.24k
14.61k (x1.3)
Test#3 (Generic, ZIP)
5.03k
4.66k (x0.93)
Test#1 (Memory)
5.02k
6.99k (x1.39)
TOTAL
25.8k
29.71k (x1.15)

Multithread

i7-4790

i5-6500
Test#1 (Integers)
15.72k
12.52k (x0.8)
Test#2 (FP)
54.99k
51.13k (x0.93)
Test#3 (Generic, ZIP)
23.87k
17.41k (x0.73)
Test#1 (Memory)
5.48k
3.9k (x0.71)
TOTAL
100.06k
84.96k (x0.85)

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
i7-4790
i5-6500
Test#1 (Integers)
14.07k
13.07k (x0.93)
Test#2 (FP)
12.63k
20.23k (x1.6)
Test#3 (Generic, ZIP)
5.35k
4.93k (x0.92)
Test#1 (Memory)
4.98k
9.2k (x1.85)
TOTAL
37.03k
47.43k (x1.28)

Multithread

i7-4790

i5-6500
Test#1 (Integers)
57.88k
49.62k (x0.86)
Test#2 (FP)
60.83k
74.82k (x1.23)
Test#3 (Generic, ZIP)
24.4k
18.46k (x0.76)
Test#1 (Memory)
6.95k
4.21k (x0.61)
TOTAL
150.07k
147.12k (x0.98)

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
i7-4790
i5-6500
Test#1 (Integers)
22.19k
22.89k (x1.03)
Test#2 (FP)
12.45k
19.87k (x1.6)
Test#3 (Generic, ZIP)
5.11k
4.58k (x0.89)
Test#1 (Memory)
4.98k
6.36k (x1.28)
TOTAL
44.73k
53.7k (x1.2)

Multithread

i7-4790

i5-6500
Test#1 (Integers)
87.14k
84.36k (x0.97)
Test#2 (FP)
58k
72.91k (x1.26)
Test#3 (Generic, ZIP)
22.75k
16.08k (x0.71)
Test#1 (Memory)
6k
6.1k (x1.02)
TOTAL
173.89k
179.44k (x1.03)

Performance/W
i7-4790
i5-6500
Test#1 (Integers)
1037 points/W
1298 points/W
Test#2 (FP)
691 points/W
1122 points/W
Test#3 (Generic, ZIP)
271 points/W
247 points/W
Test#1 (Memory)
71 points/W
94 points/W
TOTAL
2070 points/W
2761 points/W

Performance/GHz
i7-4790
i5-6500
Test#1 (Integers)
5547 points/GHz
6359 points/GHz
Test#2 (FP)
3113 points/GHz
5521 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1271 points/GHz
Test#1 (Memory)
1244 points/GHz
1766 points/GHz
TOTAL
11183 points/GHz
14917 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