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Core i7-8750H vs i7-4790


Description
The i7-8750H is based on Coffee Lake architecture while the i7-4790 is based on Haswell.

Using the multithread performance as a reference, the i7-8750H gets a score of 231.9 k points while the i7-4790 gets 173.9 k points.

Summarizing, the i7-8750H is 1.3 times faster than the i7-4790 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
306c3
Core
Coffee Lake-H
Haswell
Architecture
Base frecuency
2.2 GHz
3.6 GHz
Boost frecuency
4.1 GHz
4 GHz
Socket
BGA1440
LGA 1150
Cores/Threads
6/12
4/8
TDP
45 W
84 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
9216 kB
8192 kB
Date
April 2018
May 2014
Mean monothread perf.
53.41k points
44.73k points
Mean multithread perf.
231.9k points
173.89k 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
i7-8750H
i7-4790
Test#1 (Integers)
3.01k
4.51k (x1.5)
Test#2 (FP)
11.68k
11.24k (x0.96)
Test#3 (Generic, ZIP)
3.78k
5.03k (x1.33)
Test#1 (Memory)
5.64k
5.02k (x0.89)
TOTAL
24.12k
25.8k (x1.07)

Multithread

i7-8750H

i7-4790
Test#1 (Integers)
7.4k
15.72k (x2.12)
Test#2 (FP)
29.99k
54.99k (x1.83)
Test#3 (Generic, ZIP)
9.66k
23.87k (x2.47)
Test#1 (Memory)
5.12k
5.48k (x1.07)
TOTAL
52.18k
100.06k (x1.92)

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
i7-8750H
i7-4790
Test#1 (Integers)
15.14k
14.07k (x0.93)
Test#2 (FP)
22.8k
12.63k (x0.55)
Test#3 (Generic, ZIP)
5.5k
5.35k (x0.97)
Test#1 (Memory)
10.97k
4.98k (x0.45)
TOTAL
54.41k
37.03k (x0.68)

Multithread

i7-8750H

i7-4790
Test#1 (Integers)
82.81k
57.88k (x0.7)
Test#2 (FP)
118.58k
60.83k (x0.51)
Test#3 (Generic, ZIP)
25.08k
24.4k (x0.97)
Test#1 (Memory)
4.86k
6.95k (x1.43)
TOTAL
231.34k
150.07k (x0.65)

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
i7-8750H
i7-4790
Test#1 (Integers)
22.36k
22.19k (x0.99)
Test#2 (FP)
19.33k
12.45k (x0.64)
Test#3 (Generic, ZIP)
4.4k
5.11k (x1.16)
Test#1 (Memory)
7.32k
4.98k (x0.68)
TOTAL
53.41k
44.73k (x0.84)

Multithread

i7-8750H

i7-4790
Test#1 (Integers)
103.82k
87.14k (x0.84)
Test#2 (FP)
100.47k
58k (x0.58)
Test#3 (Generic, ZIP)
23.81k
22.75k (x0.96)
Test#1 (Memory)
3.8k
6k (x1.58)
TOTAL
231.9k
173.89k (x0.75)

Performance/W
i7-8750H
i7-4790
Test#1 (Integers)
2307 points/W
1037 points/W
Test#2 (FP)
2233 points/W
691 points/W
Test#3 (Generic, ZIP)
529 points/W
271 points/W
Test#1 (Memory)
84 points/W
71 points/W
TOTAL
5153 points/W
2070 points/W

Performance/GHz
i7-8750H
i7-4790
Test#1 (Integers)
5454 points/GHz
5547 points/GHz
Test#2 (FP)
4714 points/GHz
3113 points/GHz
Test#3 (Generic, ZIP)
1073 points/GHz
1279 points/GHz
Test#1 (Memory)
1786 points/GHz
1244 points/GHz
TOTAL
13027 points/GHz
11183 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