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Core i5-4590S vs i7-6820HQ


Description
The i5-4590S is based on Haswell architecture while the i7-6820HQ is based on Skylake.

Using the multithread performance as a reference, the i5-4590S gets a score of 117.8 k points while the i7-6820HQ gets 159.7 k points.

Summarizing, the i7-6820HQ is 1.4 times faster than the i5-4590S . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
506e3
Core
Haswell
Skylake-H
Architecture
Base frecuency
3 GHz
2.7 GHz
Boost frecuency
3.7 GHz
3.6 GHz
Socket
LGA 1150
BGA1440
Cores/Threads
4/4
4/8
TDP
65 W
45 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
May 2014
October 2015
Mean monothread perf.
34.75k points
50.1k points
Mean multithread perf.
117.77k points
205.89k 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
i5-4590S
i7-6820HQ
Test#1 (Integers)
4.24k
3.18k (x0.75)
Test#2 (FP)
10.54k
13.02k (x1.23)
Test#3 (Generic, ZIP)
4.76k
4.17k (x0.88)
Test#1 (Memory)
4.29k
6.93k (x1.62)
TOTAL
23.84k
27.3k (x1.15)

Multithread

i5-4590S

i7-6820HQ
Test#1 (Integers)
15.01k
13.26k (x0.88)
Test#2 (FP)
37.75k
62.23k (x1.65)
Test#3 (Generic, ZIP)
17.12k
20.34k (x1.19)
Test#1 (Memory)
8.48k
5.46k (x0.64)
TOTAL
78.37k
101.29k (x1.29)

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
i5-4590S
i7-6820HQ
Test#1 (Integers)
13.19k
11.78k (x0.89)
Test#2 (FP)
12.31k
18.06k (x1.47)
Test#3 (Generic, ZIP)
4.98k
4.48k (x0.9)
Test#1 (Memory)
4.27k
7.12k (x1.67)
TOTAL
34.75k
41.44k (x1.19)

Multithread

i5-4590S

i7-6820HQ
Test#1 (Integers)
47.15k
49.46k (x1.05)
Test#2 (FP)
44.1k
84.8k (x1.92)
Test#3 (Generic, ZIP)
17.93k
20.7k (x1.15)
Test#1 (Memory)
8.6k
4.77k (x0.55)
TOTAL
117.77k
159.73k (x1.36)

Performance/W
i5-4590S
i7-6820HQ
Test#1 (Integers)
725 points/W
1099 points/W
Test#2 (FP)
678 points/W
1884 points/W
Test#3 (Generic, ZIP)
276 points/W
460 points/W
Test#1 (Memory)
132 points/W
106 points/W
TOTAL
1812 points/W
3550 points/W

Performance/GHz
i5-4590S
i7-6820HQ
Test#1 (Integers)
3564 points/GHz
3273 points/GHz
Test#2 (FP)
3326 points/GHz
5016 points/GHz
Test#3 (Generic, ZIP)
1345 points/GHz
1244 points/GHz
Test#1 (Memory)
1155 points/GHz
1977 points/GHz
TOTAL
9391 points/GHz
11510 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