| | | | | | |

Core i3-8145U vs i7-4790


Description
The i3-8145U is based on Whiskey Lake architecture while the i7-4790 is based on Haswell.

Using the multithread performance as a reference, the i3-8145U gets a score of 75.1 k points while the i7-4790 gets 173.9 k points.

Summarizing, the i7-4790 is 2.3 times faster than the i3-8145U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806eb
306c3
Core
Whiskey Lake-U
Haswell
Architecture
Base frecuency
2.1 GHz
3.6 GHz
Boost frecuency
3.9 GHz
4 GHz
Socket
BGA 1528
LGA 1150
Cores/Threads
2/4
4/8
TDP
15 W
84 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
August 2018
May 2014
Mean monothread perf.
34.48k points
44.73k points
Mean multithread perf.
75.13k points
173.89k points

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
i3-8145U
i7-4790
Test#1 (Integers)
17.78k
22.19k (x1.25)
Test#2 (FP)
12.8k
12.45k (x0.97)
Test#3 (Generic, ZIP)
2.61k
5.11k (x1.96)
Test#1 (Memory)
1.3k
4.98k (x3.84)
TOTAL
34.48k
44.73k (x1.3)

Multithread

i3-8145U

i7-4790
Test#1 (Integers)
28.06k
87.14k (x3.11)
Test#2 (FP)
34.83k
58k (x1.67)
Test#3 (Generic, ZIP)
9.69k
22.75k (x2.35)
Test#1 (Memory)
2.55k
6k (x2.35)
TOTAL
75.13k
173.89k (x2.31)

Performance/W
i3-8145U
i7-4790
Test#1 (Integers)
1870 points/W
1037 points/W
Test#2 (FP)
2322 points/W
691 points/W
Test#3 (Generic, ZIP)
646 points/W
271 points/W
Test#1 (Memory)
170 points/W
71 points/W
TOTAL
5008 points/W
2070 points/W

Performance/GHz
i3-8145U
i7-4790
Test#1 (Integers)
4558 points/GHz
5547 points/GHz
Test#2 (FP)
3281 points/GHz
3113 points/GHz
Test#3 (Generic, ZIP)
669 points/GHz
1279 points/GHz
Test#1 (Memory)
332 points/GHz
1244 points/GHz
TOTAL
8840 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