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Core i7-4790K vs i7-8750H


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

Using the multithread performance as a reference, the i7-4790K gets a score of 215.5 k points while the i7-8750H gets 231.9 k points.

Summarizing, the i7-8750H is 1.1 times faster than the i7-4790K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
906ea
Core
Haswell
Coffee Lake-H
Architecture
Base frecuency
4 GHz
2.2 GHz
Boost frecuency
4.4 GHz
4.1 GHz
Socket
LGA 1150
BGA1440
Cores/Threads
4/8
6/12
TDP
88 W
45 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
May 2014
April 2018
Mean monothread perf.
52.47k points
53.41k points
Mean multithread perf.
215.47k 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
i7-4790K
i7-8750H
Test#1 (Integers)
5.06k
3.01k (x0.59)
Test#2 (FP)
12.63k
11.68k (x0.93)
Test#3 (Generic, ZIP)
5.81k
3.78k (x0.65)
Test#1 (Memory)
4.96k
5.64k (x1.14)
TOTAL
28.47k
24.12k (x0.85)

Multithread

i7-4790K

i7-8750H
Test#1 (Integers)
18.28k
7.4k (x0.4)
Test#2 (FP)
64.07k
29.99k (x0.47)
Test#3 (Generic, ZIP)
27.52k
9.66k (x0.35)
Test#1 (Memory)
7.97k
5.12k (x0.64)
TOTAL
117.84k
52.18k (x0.44)

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
i7-4790K
i7-8750H
Test#1 (Integers)
15.8k
15.14k (x0.96)
Test#2 (FP)
14.35k
22.8k (x1.59)
Test#3 (Generic, ZIP)
5.97k
5.5k (x0.92)
Test#1 (Memory)
5.17k
10.97k (x2.12)
TOTAL
41.29k
54.41k (x1.32)

Multithread

i7-4790K

i7-8750H
Test#1 (Integers)
62.79k
82.81k (x1.32)
Test#2 (FP)
66.48k
118.58k (x1.78)
Test#3 (Generic, ZIP)
26.35k
25.08k (x0.95)
Test#1 (Memory)
8.74k
4.86k (x0.56)
TOTAL
164.36k
231.34k (x1.41)

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
i7-4790K
i7-8750H
Test#1 (Integers)
26.16k
22.36k (x0.85)
Test#2 (FP)
14.78k
19.33k (x1.31)
Test#3 (Generic, ZIP)
6.01k
4.4k (x0.73)
Test#1 (Memory)
5.52k
7.32k (x1.33)
TOTAL
52.47k
53.41k (x1.02)

Multithread

i7-4790K

i7-8750H
Test#1 (Integers)
107.76k
103.82k (x0.96)
Test#2 (FP)
70.84k
100.47k (x1.42)
Test#3 (Generic, ZIP)
27.99k
23.81k (x0.85)
Test#1 (Memory)
8.87k
3.8k (x0.43)
TOTAL
215.47k
231.9k (x1.08)

Performance/W
i7-4790K
i7-8750H
Test#1 (Integers)
1225 points/W
2307 points/W
Test#2 (FP)
805 points/W
2233 points/W
Test#3 (Generic, ZIP)
318 points/W
529 points/W
Test#1 (Memory)
101 points/W
84 points/W
TOTAL
2448 points/W
5153 points/W

Performance/GHz
i7-4790K
i7-8750H
Test#1 (Integers)
5946 points/GHz
5454 points/GHz
Test#2 (FP)
3359 points/GHz
4714 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
1073 points/GHz
Test#1 (Memory)
1254 points/GHz
1786 points/GHz
TOTAL
11925 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