Core i7-7700 vs i7-8550U
Description
Both models i7-7700 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 i7-7700 gets a score of 257.5 k points while the i7-8550U gets 166.1 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 i7-7700 gets a score of 257.5 k points while the i7-8550U gets 166.1 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
906e9
806ea
Core
Kaby Lake-S
Kaby Lake-R
Base frecuency
3.6 GHz
1.8 GHz
Boost frecuency
4.2 GHz
4 GHz
Socket
LGA 1151
BGA1356
Cores/Threads
4/8
4/8
TDP
65 W
15 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
September 2016
August 2017
Mean monothread perf.
67.33k points
64.2k points
Mean multithread perf.
257.52k 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
i7-7700
i7-8550U
Test#1 (Integers)
4.23k
3.91k (x0.92)
Test#2 (FP)
16.76k
15.98k (x0.95)
Test#3 (Generic, ZIP)
5.42k
5.11k (x0.94)
Test#1 (Memory)
12.23k
11.05k (x0.9)
TOTAL
38.64k
36.05k (x0.93)
Multithread
i7-7700
i7-8550U
Test#1 (Integers)
16.71k
11.76k (x0.7)
Test#2 (FP)
73.1k
50.15k (x0.69)
Test#3 (Generic, ZIP)
25.76k
16.76k (x0.65)
Test#1 (Memory)
7.12k
4.17k (x0.59)
TOTAL
122.68k
82.84k (x0.68)
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
i7-7700
i7-8550U
Test#1 (Integers)
15.33k
12.93k (x0.84)
Test#2 (FP)
21.94k
20.59k (x0.94)
Test#3 (Generic, ZIP)
5.85k
5.41k (x0.93)
Test#1 (Memory)
12.52k
10.48k (x0.84)
TOTAL
55.64k
49.41k (x0.89)
Multithread
i7-7700
i7-8550U
Test#1 (Integers)
61.73k
41.11k (x0.67)
Test#2 (FP)
99.91k
65.04k (x0.65)
Test#3 (Generic, ZIP)
27.03k
17.53k (x0.65)
Test#1 (Memory)
9.28k
4.22k (x0.45)
TOTAL
197.96k
127.9k (x0.65)
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
i7-7700
i7-8550U
Test#1 (Integers)
15.34k
13.15k (x0.86)
Test#2 (FP)
23.41k
19.7k (x0.84)
Test#3 (Generic, ZIP)
5.87k
5.1k (x0.87)
Test#1 (Memory)
11.07k
9.21k (x0.83)
TOTAL
55.69k
47.16k (x0.85)
Multithread
i7-7700
i7-8550U
Test#1 (Integers)
62.68k
34.13k (x0.54)
Test#2 (FP)
105.24k
53.79k (x0.51)
Test#3 (Generic, ZIP)
26.35k
13.91k (x0.53)
Test#1 (Memory)
5.79k
4.12k (x0.71)
TOTAL
200.07k
105.95k (x0.53)
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
i7-7700
i7-8550U
Test#1 (Integers)
26.7k
25.37k (x0.95)
Test#2 (FP)
23.7k
22.6k (x0.95)
Test#3 (Generic, ZIP)
5.46k
5.13k (x0.94)
Test#1 (Memory)
11.48k
11.1k (x0.97)
TOTAL
67.33k
64.2k (x0.95)
Multithread
i7-7700
i7-8550U
Test#1 (Integers)
115.97k
72.82k (x0.63)
Test#2 (FP)
108.43k
71.71k (x0.66)
Test#3 (Generic, ZIP)
26.28k
17.35k (x0.66)
Test#1 (Memory)
6.85k
4.24k (x0.62)
TOTAL
257.52k
166.12k (x0.65)
Performance/W
i7-7700
i7-8550U
Test#1 (Integers)
1784 points/W
4855 points/W
Test#2 (FP)
1668 points/W
4781 points/W
Test#3 (Generic, ZIP)
404 points/W
1157 points/W
Test#1 (Memory)
105 points/W
282 points/W
TOTAL
3962 points/W
11075 points/W
Performance/GHz
i7-7700
i7-8550U
Test#1 (Integers)
6356 points/GHz
6343 points/GHz
Test#2 (FP)
5643 points/GHz
5650 points/GHz
Test#3 (Generic, ZIP)
1300 points/GHz
1282 points/GHz
Test#1 (Memory)
2733 points/GHz
2774 points/GHz
TOTAL
16032 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.
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