| | | | | | |

Core i7-7560U vs i7-8550U


Description
Both models i7-7560U and i7-8550U are based on Kaby Lake architecture.

The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.

Using the multithread performance as a reference, the i7-7560U gets a score of 97.3 k points while the i7-8550U gets 166.1 k points.

Summarizing, the i7-8550U is 1.7 times faster than the i7-7560U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
806ea
Core
Kaby Lake-U
Kaby Lake-R
Architecture
Base frecuency
2.4 GHz
1.8 GHz
Boost frecuency
3.8 GHz
4 GHz
Socket
BGA 1356
BGA1356
Cores/Threads
2/4
4/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
4096 kB
8192 kB
Date
January 2017
August 2017
Mean monothread perf.
48.16k points
64.2k points
Mean multithread perf.
97.27k 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
i7-7560U
i7-8550U
Test#1 (Integers)
3.56k
3.91k (x1.1)
Test#2 (FP)
12.71k
15.98k (x1.26)
Test#3 (Generic, ZIP)
3.93k
5.11k (x1.3)
Test#1 (Memory)
8.89k
11.05k (x1.24)
TOTAL
29.09k
36.05k (x1.24)

Multithread

i7-7560U

i7-8550U
Test#1 (Integers)
6.34k
11.76k (x1.86)
Test#2 (FP)
29.51k
50.15k (x1.7)
Test#3 (Generic, ZIP)
8.94k
16.76k (x1.87)
Test#1 (Memory)
14.72k
4.17k (x0.28)
TOTAL
59.51k
82.84k (x1.39)

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
i7-7560U
i7-8550U
Test#1 (Integers)
12.78k
12.93k (x1.01)
Test#2 (FP)
18.79k
20.59k (x1.1)
Test#3 (Generic, ZIP)
4.72k
5.41k (x1.15)
Test#1 (Memory)
8.95k
10.48k (x1.17)
TOTAL
45.24k
49.41k (x1.09)

Multithread

i7-7560U

i7-8550U
Test#1 (Integers)
23.04k
41.11k (x1.78)
Test#2 (FP)
40.07k
65.04k (x1.62)
Test#3 (Generic, ZIP)
10.08k
17.53k (x1.74)
Test#1 (Memory)
15.24k
4.22k (x0.28)
TOTAL
88.42k
127.9k (x1.45)

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
i7-7560U
i7-8550U
Test#1 (Integers)
12.88k
13.15k (x1.02)
Test#2 (FP)
20.02k
19.7k (x0.98)
Test#3 (Generic, ZIP)
4.15k
5.1k (x1.23)
Test#1 (Memory)
8.97k
9.21k (x1.03)
TOTAL
46.02k
47.16k (x1.02)

Multithread

i7-7560U

i7-8550U
Test#1 (Integers)
23k
34.13k (x1.48)
Test#2 (FP)
41.21k
53.79k (x1.31)
Test#3 (Generic, ZIP)
9.92k
13.91k (x1.4)
Test#1 (Memory)
14.9k
4.12k (x0.28)
TOTAL
89.03k
105.95k (x1.19)

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
i7-7560U
i7-8550U
Test#1 (Integers)
19.37k
25.37k (x1.31)
Test#2 (FP)
17.26k
22.6k (x1.31)
Test#3 (Generic, ZIP)
3.78k
5.13k (x1.36)
Test#1 (Memory)
7.75k
11.1k (x1.43)
TOTAL
48.16k
64.2k (x1.33)

Multithread

i7-7560U

i7-8550U
Test#1 (Integers)
39.17k
72.82k (x1.86)
Test#2 (FP)
38.24k
71.71k (x1.88)
Test#3 (Generic, ZIP)
8.9k
17.35k (x1.95)
Test#1 (Memory)
10.97k
4.24k (x0.39)
TOTAL
97.27k
166.12k (x1.71)

Performance/W
i7-7560U
i7-8550U
Test#1 (Integers)
2611 points/W
4855 points/W
Test#2 (FP)
2549 points/W
4781 points/W
Test#3 (Generic, ZIP)
593 points/W
1157 points/W
Test#1 (Memory)
731 points/W
282 points/W
TOTAL
6485 points/W
11075 points/W

Performance/GHz
i7-7560U
i7-8550U
Test#1 (Integers)
5097 points/GHz
6343 points/GHz
Test#2 (FP)
4543 points/GHz
5650 points/GHz
Test#3 (Generic, ZIP)
994 points/GHz
1282 points/GHz
Test#1 (Memory)
2041 points/GHz
2774 points/GHz
TOTAL
12674 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