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Core i3-8100 vs i5-8265U


Description
The i3-8100 is based on Coffee Lake architecture while the i5-8265U is based on Whiskey Lake.

Using the multithread performance as a reference, the i3-8100 gets a score of 200.4 k points while the i5-8265U gets 143.2 k points.

Summarizing, the i3-8100 is 1.4 times faster than the i5-8265U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906eb
806ec
Core
Coffee Lake-S
Whiskey Lake-U
Architecture
Base frecuency
3.6 GHz
1.6 GHz
Boost frecuency
3.6 GHz
3.9 GHz
Socket
LGA 1151
BGA1528
Cores/Threads
4/4
4/8
TDP
65 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
October 2017
August 2018
Mean monothread perf.
59.18k points
46.67k points
Mean multithread perf.
200.4k points
143.23k 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
i5-8265U
Test#1 (Integers)
3.72k
3.68k (x0.99)
Test#2 (FP)
15.33k
16.08k (x1.05)
Test#3 (Generic, ZIP)
4.71k
4.99k (x1.06)
Test#1 (Memory)
6.76k
7.95k (x1.18)
TOTAL
30.52k
32.69k (x1.07)

Multithread

i3-8100

i5-8265U
Test#1 (Integers)
14.48k
14.29k (x0.99)
Test#2 (FP)
59.59k
61.15k (x1.03)
Test#3 (Generic, ZIP)
18.07k
16.53k (x0.91)
Test#1 (Memory)
4.3k
3.72k (x0.87)
TOTAL
96.43k
95.69k (x0.99)

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
i5-8265U
Test#1 (Integers)
13.51k
13.6k (x1.01)
Test#2 (FP)
19.38k
20.03k (x1.03)
Test#3 (Generic, ZIP)
5.06k
5.19k (x1.03)
Test#1 (Memory)
7.87k
7.05k (x0.9)
TOTAL
45.81k
45.87k (x1)

Multithread

i3-8100

i5-8265U
Test#1 (Integers)
52.88k
51.42k (x0.97)
Test#2 (FP)
75.92k
77.48k (x1.02)
Test#3 (Generic, ZIP)
19.52k
16.65k (x0.85)
Test#1 (Memory)
4.53k
3.69k (x0.81)
TOTAL
152.86k
149.24k (x0.98)

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
i5-8265U
Test#1 (Integers)
13.52k
13.66k (x1.01)
Test#2 (FP)
20.57k
21.17k (x1.03)
Test#3 (Generic, ZIP)
4.96k
5k (x1.01)
Test#1 (Memory)
7.91k
8.11k (x1.03)
TOTAL
46.96k
47.94k (x1.02)

Multithread

i3-8100

i5-8265U
Test#1 (Integers)
53.4k
51.36k (x0.96)
Test#2 (FP)
80.87k
79.72k (x0.99)
Test#3 (Generic, ZIP)
19.03k
16.61k (x0.87)
Test#1 (Memory)
4.29k
3.75k (x0.87)
TOTAL
157.59k
151.44k (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
i3-8100
i5-8265U
Test#1 (Integers)
24.47k
19.19k (x0.78)
Test#2 (FP)
21.52k
17.47k (x0.81)
Test#3 (Generic, ZIP)
4.95k
4.04k (x0.82)
Test#1 (Memory)
8.24k
5.97k (x0.72)
TOTAL
59.18k
46.67k (x0.79)

Multithread

i3-8100

i5-8265U
Test#1 (Integers)
92.86k
64.43k (x0.69)
Test#2 (FP)
83.05k
61.91k (x0.75)
Test#3 (Generic, ZIP)
18.55k
13.36k (x0.72)
Test#1 (Memory)
5.93k
3.52k (x0.59)
TOTAL
200.4k
143.23k (x0.71)

Performance/W
i3-8100
i5-8265U
Test#1 (Integers)
1429 points/W
4296 points/W
Test#2 (FP)
1278 points/W
4128 points/W
Test#3 (Generic, ZIP)
285 points/W
890 points/W
Test#1 (Memory)
91 points/W
235 points/W
TOTAL
3083 points/W
9548 points/W

Performance/GHz
i3-8100
i5-8265U
Test#1 (Integers)
6797 points/GHz
4920 points/GHz
Test#2 (FP)
5977 points/GHz
4478 points/GHz
Test#3 (Generic, ZIP)
1374 points/GHz
1037 points/GHz
Test#1 (Memory)
2290 points/GHz
1531 points/GHz
TOTAL
16438 points/GHz
11966 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