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Core i7-4790K vs i3-8100


Description
The i7-4790K is based on Haswell architecture while the i3-8100 is based on Coffee Lake.

Using the multithread performance as a reference, the i7-4790K gets a score of 219.5 k points while the i3-8100 gets 207.2 k points.

Summarizing, the i7-4790K is 1.1 times faster than the i3-8100. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
906eb
Core
Haswell
Coffee Lake-S
Architecture
Base frecuency
4 GHz
3.6 GHz
Boost frecuency
4.4 GHz
3.6 GHz
Socket
LGA 1150
LGA 1151
Cores/Threads
4/8
4/4
TDP
88 W
65 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
May 2014
October 2017

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
i3-8100
Test#1 (Integers)
5065
3704 (-26.87%)
Test#2 (FP)
12626
15303 (21.21%)
Test#3 (Generic, ZIP)
5815
4810 (-17.28%)
Test#1 (Memory)
4963
5648 (13.81%)
TOTAL
28468
29465 (3.50%)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
18283
14280 (-21.90%)
Test#2 (FP)
64071
59006 (-7.90%)
Test#3 (Generic, ZIP)
27522
18550 (-32.60%)
Test#1 (Memory)
7970
3955 (-50.37%)
TOTAL
117844
95790 (-18.71%)

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
i7-4790K
i3-8100
Test#1 (Integers)
15603
13509 (-13.42%)
Test#2 (FP)
13919
19411 (39.46%)
Test#3 (Generic, ZIP)
6125
5066 (-17.28%)
Test#1 (Memory)
5001
7398 (47.94%)
TOTAL
40647
45384 (11.65%)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
65477
52705 (-19.51%)
Test#2 (FP)
63290
75624 (19.49%)
Test#3 (Generic, ZIP)
27929
19695 (-29.48%)
Test#1 (Memory)
7841
4350 (-44.53%)
TOTAL
164537
152375 (-7.39%)

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
i3-8100
Test#1 (Integers)
15800
13519 (-14.44%)
Test#2 (FP)
14346
20623 (43.76%)
Test#3 (Generic, ZIP)
5974
4973 (-16.75%)
Test#1 (Memory)
5166
7363 (42.55%)
TOTAL
41285
46479 (12.58%)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
62785
53186 (-15.29%)
Test#2 (FP)
66483
80814 (21.56%)
Test#3 (Generic, ZIP)
26352
19314 (-26.71%)
Test#1 (Memory)
8739
3977 (-54.49%)
TOTAL
164359
157290 (-4.30%)

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
i3-8100
Test#1 (Integers)
26714
24458 (-8.45%)
Test#2 (FP)
15101
21606 (43.08%)
Test#3 (Generic, ZIP)
6186
5090 (-17.72%)
Test#1 (Memory)
5554
7873 (41.74%)
TOTAL
53555
59026 (10.22%)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
109572
97031 (-11.45%)
Test#2 (FP)
71887
86109 (19.78%)
Test#3 (Generic, ZIP)
28440
19952 (-29.85%)
Test#1 (Memory)
9603
4086 (-57.45%)
TOTAL
219503
207178 (-5.61%)

Performance/W
i7-4790K
i3-8100
Test#1 (Integers)
1245 points/W
1493 points/W
Test#2 (FP)
817 points/W
1325 points/W
Test#3 (Generic, ZIP)
323 points/W
307 points/W
Test#1 (Memory)
109 points/W
63 points/W
TOTAL
2494 points/W
3187 points/W

Performance/GHz
i7-4790K
i3-8100
Test#1 (Integers)
6071 points/GHz
6794 points/GHz
Test#2 (FP)
3432 points/GHz
6002 points/GHz
Test#3 (Generic, ZIP)
1406 points/GHz
1414 points/GHz
Test#1 (Memory)
1262 points/GHz
2187 points/GHz
TOTAL
12172 points/GHz
16396 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. 3.7.8