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Core i7-7700HQ vs i7-8750H


Description
The i7-7700HQ is based on Kaby Lake architecture while the i7-8750H is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7700HQ gets a score of 208.3 k points while the i7-8750H gets 231.9 k points.

Summarizing, the i7-8750H is 1.1 times faster than the i7-7700HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906ea
Core
Kaby Lake-H
Coffee Lake-H
Architecture
Base frecuency
2.8 GHz
2.2 GHz
Boost frecuency
3.8 GHz
4.1 GHz
Socket
BGA1440
BGA1440
Cores/Threads
4/8
6/12
TDP
45 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
6144 kB
9216 kB
Date
January 2017
April 2018
Mean monothread perf.
56.29k points
53.41k points
Mean multithread perf.
208.33k points
231.9k 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
i7-7700HQ
i7-8750H
Test#1 (Integers)
3.82k
3.01k (x0.79)
Test#2 (FP)
15.49k
11.68k (x0.75)
Test#3 (Generic, ZIP)
4.96k
3.78k (x0.76)
Test#1 (Memory)
8.82k
5.64k (x0.64)
TOTAL
33.09k
24.12k (x0.73)

Multithread

i7-7700HQ

i7-8750H
Test#1 (Integers)
14.15k
7.4k (x0.52)
Test#2 (FP)
65.81k
29.99k (x0.46)
Test#3 (Generic, ZIP)
22.41k
9.66k (x0.43)
Test#1 (Memory)
5.21k
5.12k (x0.98)
TOTAL
107.57k
52.18k (x0.49)

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
i7-7700HQ
i7-8750H
Test#1 (Integers)
13k
15.14k (x1.16)
Test#2 (FP)
20.34k
22.8k (x1.12)
Test#3 (Generic, ZIP)
4.77k
5.5k (x1.15)
Test#1 (Memory)
6.95k
10.97k (x1.58)
TOTAL
45.05k
54.41k (x1.21)

Multithread

i7-7700HQ

i7-8750H
Test#1 (Integers)
52.7k
82.81k (x1.57)
Test#2 (FP)
89.69k
118.58k (x1.32)
Test#3 (Generic, ZIP)
22.49k
25.08k (x1.12)
Test#1 (Memory)
4.3k
4.86k (x1.13)
TOTAL
169.17k
231.34k (x1.37)

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
i7-7700HQ
i7-8750H
Test#1 (Integers)
23.27k
22.36k (x0.96)
Test#2 (FP)
20.35k
19.33k (x0.95)
Test#3 (Generic, ZIP)
4.76k
4.4k (x0.93)
Test#1 (Memory)
7.92k
7.32k (x0.92)
TOTAL
56.29k
53.41k (x0.95)

Multithread

i7-7700HQ

i7-8750H
Test#1 (Integers)
93.11k
103.82k (x1.12)
Test#2 (FP)
89.03k
100.47k (x1.13)
Test#3 (Generic, ZIP)
21.29k
23.81k (x1.12)
Test#1 (Memory)
4.9k
3.8k (x0.77)
TOTAL
208.33k
231.9k (x1.11)

Performance/W
i7-7700HQ
i7-8750H
Test#1 (Integers)
2069 points/W
2307 points/W
Test#2 (FP)
1978 points/W
2233 points/W
Test#3 (Generic, ZIP)
473 points/W
529 points/W
Test#1 (Memory)
109 points/W
84 points/W
TOTAL
4629 points/W
5153 points/W

Performance/GHz
i7-7700HQ
i7-8750H
Test#1 (Integers)
6124 points/GHz
5454 points/GHz
Test#2 (FP)
5354 points/GHz
4714 points/GHz
Test#3 (Generic, ZIP)
1251 points/GHz
1073 points/GHz
Test#1 (Memory)
2083 points/GHz
1786 points/GHz
TOTAL
14813 points/GHz
13027 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