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Core i5-8365U vs i9-10900X


Description
The i5-8365U is based on Whiskey Lake architecture while the i9-10900X is based on Cascade Lake.

Using the multithread performance as a reference, the i5-8365U gets a score of 197.5 k points while the i9-10900X gets 632.4 k points.

Summarizing, the i9-10900X is 3.2 times faster than the i5-8365U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ec
50657
Core
Whiskey Lake-U
Cascade Lake-X
Architecture
Base frecuency
1.6 GHz
3.7 GHz
Boost frecuency
4.1 GHz
4.7 GHz
Socket
BGA 1528
LGA 2066
Cores/Threads
4/8
10/20
TDP
15 W
165 W
Cache L1 (d+i)
4x32+4x32 kB
10x32+10x32 kB
Cache L2
4x256 kB
10x1024 kB
Cache L3
6144 kB
19712 kB
Date
April 2019
November 2019
Mean monothread perf.
59.73k points
62.28k points
Mean multithread perf.
197.46k points
632.35k 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
i5-8365U
i9-10900X
Test#1 (Integers)
24.37k
25.97k (x1.07)
Test#2 (FP)
22.68k
22.37k (x0.99)
Test#3 (Generic, ZIP)
4.98k
5.3k (x1.07)
Test#1 (Memory)
7.7k
8.63k (x1.12)
TOTAL
59.73k
62.28k (x1.04)

Multithread

i5-8365U

i9-10900X
Test#1 (Integers)
89.45k
281.98k (x3.15)
Test#2 (FP)
85.57k
259.01k (x3.03)
Test#3 (Generic, ZIP)
19.02k
64.87k (x3.41)
Test#1 (Memory)
3.41k
26.5k (x7.77)
TOTAL
197.46k
632.35k (x3.2)

Performance/W
i5-8365U
i9-10900X
Test#1 (Integers)
5964 points/W
1709 points/W
Test#2 (FP)
5705 points/W
1570 points/W
Test#3 (Generic, ZIP)
1268 points/W
393 points/W
Test#1 (Memory)
227 points/W
161 points/W
TOTAL
13164 points/W
3832 points/W

Performance/GHz
i5-8365U
i9-10900X
Test#1 (Integers)
5944 points/GHz
5526 points/GHz
Test#2 (FP)
5531 points/GHz
4760 points/GHz
Test#3 (Generic, ZIP)
1214 points/GHz
1128 points/GHz
Test#1 (Memory)
1879 points/GHz
1835 points/GHz
TOTAL
14568 points/GHz
13250 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