Core i7-8550U vs i7-7700
Description
Both models i7-8550U and i7-7700 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 i7-8550U gets a score of 166.1 k points while the i7-7700 gets 257.5 k points.
Summarizing, the i7-7700 is 1.6 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.
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 i7-8550U gets a score of 166.1 k points while the i7-7700 gets 257.5 k points.
Summarizing, the i7-7700 is 1.6 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ea
906e9
Core
Kaby Lake-R
Kaby Lake-S
Base frecuency
1.8 GHz
3.6 GHz
Boost frecuency
4 GHz
4.2 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
4/8
4/8
TDP
15 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
August 2017
September 2016
Mean monothread perf.
64.2k points
67.33k points
Mean multithread perf.
166.12k points
257.52k 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
i7-8550U
i7-7700
Test#1 (Integers)
3.91k
4.23k (x1.08)
Test#2 (FP)
15.98k
16.76k (x1.05)
Test#3 (Generic, ZIP)
5.11k
5.42k (x1.06)
Test#1 (Memory)
11.05k
12.23k (x1.11)
TOTAL
36.05k
38.64k (x1.07)
Multithread
i7-8550U
i7-7700
Test#1 (Integers)
11.76k
16.71k (x1.42)
Test#2 (FP)
50.15k
73.1k (x1.46)
Test#3 (Generic, ZIP)
16.76k
25.76k (x1.54)
Test#1 (Memory)
4.17k
7.12k (x1.71)
TOTAL
82.84k
122.68k (x1.48)
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
i7-8550U
i7-7700
Test#1 (Integers)
12.93k
15.33k (x1.19)
Test#2 (FP)
20.59k
21.94k (x1.07)
Test#3 (Generic, ZIP)
5.41k
5.85k (x1.08)
Test#1 (Memory)
10.48k
12.52k (x1.2)
TOTAL
49.41k
55.64k (x1.13)
Multithread
i7-8550U
i7-7700
Test#1 (Integers)
41.11k
61.73k (x1.5)
Test#2 (FP)
65.04k
99.91k (x1.54)
Test#3 (Generic, ZIP)
17.53k
27.03k (x1.54)
Test#1 (Memory)
4.22k
9.28k (x2.2)
TOTAL
127.9k
197.96k (x1.55)
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
i7-8550U
i7-7700
Test#1 (Integers)
13.15k
15.34k (x1.17)
Test#2 (FP)
19.7k
23.41k (x1.19)
Test#3 (Generic, ZIP)
5.1k
5.87k (x1.15)
Test#1 (Memory)
9.21k
11.07k (x1.2)
TOTAL
47.16k
55.69k (x1.18)
Multithread
i7-8550U
i7-7700
Test#1 (Integers)
34.13k
62.68k (x1.84)
Test#2 (FP)
53.79k
105.24k (x1.96)
Test#3 (Generic, ZIP)
13.91k
26.35k (x1.9)
Test#1 (Memory)
4.12k
5.79k (x1.4)
TOTAL
105.95k
200.07k (x1.89)
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
i7-8550U
i7-7700
Test#1 (Integers)
25.37k
26.7k (x1.05)
Test#2 (FP)
22.6k
23.7k (x1.05)
Test#3 (Generic, ZIP)
5.13k
5.46k (x1.06)
Test#1 (Memory)
11.1k
11.48k (x1.03)
TOTAL
64.2k
67.33k (x1.05)
Multithread
i7-8550U
i7-7700
Test#1 (Integers)
72.82k
115.97k (x1.59)
Test#2 (FP)
71.71k
108.43k (x1.51)
Test#3 (Generic, ZIP)
17.35k
26.28k (x1.51)
Test#1 (Memory)
4.24k
6.85k (x1.62)
TOTAL
166.12k
257.52k (x1.55)
Performance/W
i7-8550U
i7-7700
Test#1 (Integers)
4855 points/W
1784 points/W
Test#2 (FP)
4781 points/W
1668 points/W
Test#3 (Generic, ZIP)
1157 points/W
404 points/W
Test#1 (Memory)
282 points/W
105 points/W
TOTAL
11075 points/W
3962 points/W
Performance/GHz
i7-8550U
i7-7700
Test#1 (Integers)
6343 points/GHz
6356 points/GHz
Test#2 (FP)
5650 points/GHz
5643 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1300 points/GHz
Test#1 (Memory)
2774 points/GHz
2733 points/GHz
TOTAL
16049 points/GHz
16032 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4