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Core i3-8100 vs i7-4790K


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

Using the multithread performance as a reference, the i3-8100 gets a score of 200.4 k points while the i7-4790K gets 215.5 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
906eb
306c3
Core
Coffee Lake-S
Haswell
Architecture
Base frecuency
3.6 GHz
4 GHz
Boost frecuency
3.6 GHz
4.4 GHz
Socket
LGA 1151
LGA 1150
Cores/Threads
4/4
4/8
TDP
65 W
88 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
October 2017
May 2014
Mean monothread perf.
59.18k points
52.47k points
Mean multithread perf.
200.4k points
215.47k 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
i3-8100
i7-4790K
Test#1 (Integers)
3.72k
5.06k (x1.36)
Test#2 (FP)
15.33k
12.63k (x0.82)
Test#3 (Generic, ZIP)
4.71k
5.81k (x1.24)
Test#1 (Memory)
6.76k
4.96k (x0.73)
TOTAL
30.52k
28.47k (x0.93)

Multithread

i3-8100

i7-4790K
Test#1 (Integers)
14.48k
18.28k (x1.26)
Test#2 (FP)
59.59k
64.07k (x1.08)
Test#3 (Generic, ZIP)
18.07k
27.52k (x1.52)
Test#1 (Memory)
4.3k
7.97k (x1.85)
TOTAL
96.43k
117.84k (x1.22)

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
i3-8100
i7-4790K
Test#1 (Integers)
13.51k
15.6k (x1.15)
Test#2 (FP)
19.38k
13.92k (x0.72)
Test#3 (Generic, ZIP)
5.06k
6.12k (x1.21)
Test#1 (Memory)
7.87k
5k (x0.64)
TOTAL
45.81k
40.65k (x0.89)

Multithread

i3-8100

i7-4790K
Test#1 (Integers)
52.88k
65.48k (x1.24)
Test#2 (FP)
75.92k
63.29k (x0.83)
Test#3 (Generic, ZIP)
19.52k
27.93k (x1.43)
Test#1 (Memory)
4.53k
7.84k (x1.73)
TOTAL
152.86k
164.54k (x1.08)

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
i3-8100
i7-4790K
Test#1 (Integers)
13.52k
15.8k (x1.17)
Test#2 (FP)
20.57k
14.35k (x0.7)
Test#3 (Generic, ZIP)
4.96k
5.97k (x1.2)
Test#1 (Memory)
7.91k
5.17k (x0.65)
TOTAL
46.96k
41.29k (x0.88)

Multithread

i3-8100

i7-4790K
Test#1 (Integers)
53.4k
62.79k (x1.18)
Test#2 (FP)
80.87k
66.48k (x0.82)
Test#3 (Generic, ZIP)
19.03k
26.35k (x1.38)
Test#1 (Memory)
4.29k
8.74k (x2.04)
TOTAL
157.59k
164.36k (x1.04)

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
i3-8100
i7-4790K
Test#1 (Integers)
24.47k
26.16k (x1.07)
Test#2 (FP)
21.52k
14.78k (x0.69)
Test#3 (Generic, ZIP)
4.95k
6.01k (x1.21)
Test#1 (Memory)
8.24k
5.52k (x0.67)
TOTAL
59.18k
52.47k (x0.89)

Multithread

i3-8100

i7-4790K
Test#1 (Integers)
92.86k
107.76k (x1.16)
Test#2 (FP)
83.05k
70.84k (x0.85)
Test#3 (Generic, ZIP)
18.55k
27.99k (x1.51)
Test#1 (Memory)
5.93k
8.87k (x1.5)
TOTAL
200.4k
215.47k (x1.08)

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

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