Core i7-9750H vs i7-8550U
Description
The i7-9750H is based on Coffee Lake architecture while the i7-8550U is based on Kaby Lake.
Using the multithread performance as a reference, the i7-9750H gets a score of 276.5 k points while the i7-8550U gets 166.1 k points.
Summarizing, the i7-9750H is 1.7 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-9750H gets a score of 276.5 k points while the i7-8550U gets 166.1 k points.
Summarizing, the i7-9750H is 1.7 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
806ea
Core
Coffee Lake-H
Kaby Lake-R
Base frecuency
2.6 GHz
1.8 GHz
Boost frecuency
4.5 GHz
4 GHz
Socket
BGA 1440
BGA1356
Cores/Threads
6/12
4/8
TDP
45 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
12288 kB
8192 kB
Date
April 2019
August 2017
Mean monothread perf.
62.92k points
64.2k points
Mean multithread perf.
276.46k 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
i7-9750H
i7-8550U
Test#1 (Integers)
4.53k
3.91k (x0.86)
Test#2 (FP)
18.24k
15.98k (x0.88)
Test#3 (Generic, ZIP)
5.76k
5.11k (x0.89)
Test#1 (Memory)
13.01k
11.05k (x0.85)
TOTAL
41.54k
36.05k (x0.87)
Multithread
i7-9750H
i7-8550U
Test#1 (Integers)
24.3k
11.76k (x0.48)
Test#2 (FP)
97.88k
50.15k (x0.51)
Test#3 (Generic, ZIP)
29.85k
16.76k (x0.56)
Test#1 (Memory)
11.93k
4.17k (x0.35)
TOTAL
163.95k
82.84k (x0.51)
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
i7-9750H
i7-8550U
Test#1 (Integers)
16.32k
12.93k (x0.79)
Test#2 (FP)
23.42k
20.59k (x0.88)
Test#3 (Generic, ZIP)
6.04k
5.41k (x0.9)
Test#1 (Memory)
13.24k
10.48k (x0.79)
TOTAL
59.03k
49.41k (x0.84)
Multithread
i7-9750H
i7-8550U
Test#1 (Integers)
86.92k
41.11k (x0.47)
Test#2 (FP)
126.14k
65.04k (x0.52)
Test#3 (Generic, ZIP)
29.62k
17.53k (x0.59)
Test#1 (Memory)
11.86k
4.22k (x0.36)
TOTAL
254.54k
127.9k (x0.5)
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
i7-9750H
i7-8550U
Test#1 (Integers)
16.31k
13.15k (x0.81)
Test#2 (FP)
24.48k
19.7k (x0.8)
Test#3 (Generic, ZIP)
5.87k
5.1k (x0.87)
Test#1 (Memory)
13.02k
9.21k (x0.71)
TOTAL
59.67k
47.16k (x0.79)
Multithread
i7-9750H
i7-8550U
Test#1 (Integers)
87.54k
34.13k (x0.39)
Test#2 (FP)
131.05k
53.79k (x0.41)
Test#3 (Generic, ZIP)
28.47k
13.91k (x0.49)
Test#1 (Memory)
11.8k
4.12k (x0.35)
TOTAL
258.87k
105.95k (x0.41)
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
i7-9750H
i7-8550U
Test#1 (Integers)
25.22k
25.37k (x1.01)
Test#2 (FP)
21.97k
22.6k (x1.03)
Test#3 (Generic, ZIP)
5.02k
5.13k (x1.02)
Test#1 (Memory)
10.71k
11.1k (x1.04)
TOTAL
62.92k
64.2k (x1.02)
Multithread
i7-9750H
i7-8550U
Test#1 (Integers)
125.56k
72.82k (x0.58)
Test#2 (FP)
115.86k
71.71k (x0.62)
Test#3 (Generic, ZIP)
25.63k
17.35k (x0.68)
Test#1 (Memory)
9.4k
4.24k (x0.45)
TOTAL
276.46k
166.12k (x0.6)
Performance/W
i7-9750H
i7-8550U
Test#1 (Integers)
2790 points/W
4855 points/W
Test#2 (FP)
2575 points/W
4781 points/W
Test#3 (Generic, ZIP)
570 points/W
1157 points/W
Test#1 (Memory)
209 points/W
282 points/W
TOTAL
6144 points/W
11075 points/W
Performance/GHz
i7-9750H
i7-8550U
Test#1 (Integers)
5605 points/GHz
6343 points/GHz
Test#2 (FP)
4882 points/GHz
5650 points/GHz
Test#3 (Generic, ZIP)
1115 points/GHz
1282 points/GHz
Test#1 (Memory)
2380 points/GHz
2774 points/GHz
TOTAL
13982 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