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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 215.5 k points while the i3-8100 gets 200.4 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
Mean monothread perf.
52.47k points
59.18k points
Mean multithread perf.
215.47k points
200.4k 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
i3-8100
Test#1 (Integers)
5.06k
3.72k (x0.73)
Test#2 (FP)
12.63k
15.33k (x1.21)
Test#3 (Generic, ZIP)
5.81k
4.71k (x0.81)
Test#1 (Memory)
4.96k
6.76k (x1.36)
TOTAL
28.47k
30.52k (x1.07)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
18.28k
14.48k (x0.79)
Test#2 (FP)
64.07k
59.59k (x0.93)
Test#3 (Generic, ZIP)
27.52k
18.07k (x0.66)
Test#1 (Memory)
7.97k
4.3k (x0.54)
TOTAL
117.84k
96.43k (x0.82)

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)
15.6k
13.51k (x0.87)
Test#2 (FP)
13.92k
19.38k (x1.39)
Test#3 (Generic, ZIP)
6.12k
5.06k (x0.83)
Test#1 (Memory)
5k
7.87k (x1.57)
TOTAL
40.65k
45.81k (x1.13)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
65.48k
52.88k (x0.81)
Test#2 (FP)
63.29k
75.92k (x1.2)
Test#3 (Generic, ZIP)
27.93k
19.52k (x0.7)
Test#1 (Memory)
7.84k
4.53k (x0.58)
TOTAL
164.54k
152.86k (x0.93)

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)
15.8k
13.52k (x0.86)
Test#2 (FP)
14.35k
20.57k (x1.43)
Test#3 (Generic, ZIP)
5.97k
4.96k (x0.83)
Test#1 (Memory)
5.17k
7.91k (x1.53)
TOTAL
41.29k
46.96k (x1.14)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
62.79k
53.4k (x0.85)
Test#2 (FP)
66.48k
80.87k (x1.22)
Test#3 (Generic, ZIP)
26.35k
19.03k (x0.72)
Test#1 (Memory)
8.74k
4.29k (x0.49)
TOTAL
164.36k
157.59k (x0.96)

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)
26.16k
24.47k (x0.94)
Test#2 (FP)
14.78k
21.52k (x1.46)
Test#3 (Generic, ZIP)
6.01k
4.95k (x0.82)
Test#1 (Memory)
5.52k
8.24k (x1.49)
TOTAL
52.47k
59.18k (x1.13)

Multithread

i7-4790K

i3-8100
Test#1 (Integers)
107.76k
92.86k (x0.86)
Test#2 (FP)
70.84k
83.05k (x1.17)
Test#3 (Generic, ZIP)
27.99k
18.55k (x0.66)
Test#1 (Memory)
8.87k
5.93k (x0.67)
TOTAL
215.47k
200.4k (x0.93)

Performance/W
i7-4790K
i3-8100
Test#1 (Integers)
1225 points/W
1429 points/W
Test#2 (FP)
805 points/W
1278 points/W
Test#3 (Generic, ZIP)
318 points/W
285 points/W
Test#1 (Memory)
101 points/W
91 points/W
TOTAL
2448 points/W
3083 points/W

Performance/GHz
i7-4790K
i3-8100
Test#1 (Integers)
5946 points/GHz
6797 points/GHz
Test#2 (FP)
3359 points/GHz
5977 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
1374 points/GHz
Test#1 (Memory)
1254 points/GHz
2290 points/GHz
TOTAL
11925 points/GHz
16438 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