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Core i5-6500 vs i7-8550U


Description
The i5-6500 is based on Skylake architecture while the i7-8550U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-6500 gets a score of 179.4 k points while the i7-8550U gets 166.1 k points.

Summarizing, the i5-6500 is 1.1 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
806ea
Core
Skylake-S
Kaby Lake-R
Architecture
Base frecuency
3.2 GHz
1.8 GHz
Boost frecuency
3.6 GHz
4 GHz
Socket
LGA 1151
BGA1356
Cores/Threads
4/4
4/8
TDP
65 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
September 2015
August 2017
Mean monothread perf.
53.7k points
64.2k points
Mean multithread perf.
179.44k points
166.12k 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
i5-6500
i7-8550U
Test#1 (Integers)
3.46k
3.91k (x1.13)
Test#2 (FP)
14.61k
15.98k (x1.09)
Test#3 (Generic, ZIP)
4.66k
5.11k (x1.1)
Test#1 (Memory)
6.99k
11.05k (x1.58)
TOTAL
29.71k
36.05k (x1.21)

Multithread

i5-6500

i7-8550U
Test#1 (Integers)
12.52k
11.76k (x0.94)
Test#2 (FP)
51.13k
50.15k (x0.98)
Test#3 (Generic, ZIP)
17.41k
16.76k (x0.96)
Test#1 (Memory)
3.9k
4.17k (x1.07)
TOTAL
84.96k
82.84k (x0.98)

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
i5-6500
i7-8550U
Test#1 (Integers)
13.07k
13.15k (x1.01)
Test#2 (FP)
20.23k
19.7k (x0.97)
Test#3 (Generic, ZIP)
4.93k
5.1k (x1.04)
Test#1 (Memory)
9.2k
9.21k (x1)
TOTAL
47.43k
47.16k (x0.99)

Multithread

i5-6500

i7-8550U
Test#1 (Integers)
49.62k
34.13k (x0.69)
Test#2 (FP)
74.82k
53.79k (x0.72)
Test#3 (Generic, ZIP)
18.46k
13.91k (x0.75)
Test#1 (Memory)
4.21k
4.12k (x0.98)
TOTAL
147.12k
105.95k (x0.72)

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
i5-6500
i7-8550U
Test#1 (Integers)
22.89k
25.37k (x1.11)
Test#2 (FP)
19.87k
22.6k (x1.14)
Test#3 (Generic, ZIP)
4.58k
5.13k (x1.12)
Test#1 (Memory)
6.36k
11.1k (x1.74)
TOTAL
53.7k
64.2k (x1.2)

Multithread

i5-6500

i7-8550U
Test#1 (Integers)
84.36k
72.82k (x0.86)
Test#2 (FP)
72.91k
71.71k (x0.98)
Test#3 (Generic, ZIP)
16.08k
17.35k (x1.08)
Test#1 (Memory)
6.1k
4.24k (x0.69)
TOTAL
179.44k
166.12k (x0.93)

Performance/W
i5-6500
i7-8550U
Test#1 (Integers)
1298 points/W
4855 points/W
Test#2 (FP)
1122 points/W
4781 points/W
Test#3 (Generic, ZIP)
247 points/W
1157 points/W
Test#1 (Memory)
94 points/W
282 points/W
TOTAL
2761 points/W
11075 points/W

Performance/GHz
i5-6500
i7-8550U
Test#1 (Integers)
6359 points/GHz
6343 points/GHz
Test#2 (FP)
5521 points/GHz
5650 points/GHz
Test#3 (Generic, ZIP)
1271 points/GHz
1282 points/GHz
Test#1 (Memory)
1766 points/GHz
2774 points/GHz
TOTAL
14917 points/GHz
16049 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