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Ryzen 7 3800X vs Core i5-8265U


Description
The 3800X is based on Zen 2 architecture while the i5-8265U is based on Whiskey Lake.

Using the multithread performance as a reference, the 3800X gets a score of 497.7 k points while the i5-8265U gets 143.2 k points.

Summarizing, the 3800X is 3.5 times faster than the i5-8265U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
806ec
Core
Matisse
Whiskey Lake-U
Architecture
Base frecuency
3.9 GHz
1.6 GHz
Boost frecuency
4.5 GHz
3.9 GHz
Socket
AM4
BGA1528
Cores/Threads
8/16
4/8
TDP
105 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x512 kB
4x256 kB
Cache L3
32768 kB
6144 kB
Date
July 2019
August 2018
Mean monothread perf.
75.81k points
46.67k points
Mean multithread perf.
497.74k 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
3800X
i5-8265U
Test#1 (Integers)
4.47k
3.68k (x0.82)
Test#2 (FP)
17.41k
16.08k (x0.92)
Test#3 (Generic, ZIP)
8.23k
4.99k (x0.61)
Test#1 (Memory)
25.15k
7.95k (x0.32)
TOTAL
55.26k
32.69k (x0.59)

Multithread

3800X

i5-8265U
Test#1 (Integers)
36.1k
14.29k (x0.4)
Test#2 (FP)
178.65k
61.15k (x0.34)
Test#3 (Generic, ZIP)
95.98k
16.53k (x0.17)
Test#1 (Memory)
16.03k
3.72k (x0.23)
TOTAL
326.76k
95.69k (x0.29)

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
3800X
i5-8265U
Test#1 (Integers)
17.17k
13.6k (x0.79)
Test#2 (FP)
25.32k
20.03k (x0.79)
Test#3 (Generic, ZIP)
8.36k
5.19k (x0.62)
Test#1 (Memory)
27.86k
7.05k (x0.25)
TOTAL
78.71k
45.87k (x0.58)

Multithread

3800X

i5-8265U
Test#1 (Integers)
136.06k
51.42k (x0.38)
Test#2 (FP)
195.06k
77.48k (x0.4)
Test#3 (Generic, ZIP)
97.81k
16.65k (x0.17)
Test#1 (Memory)
12.91k
3.69k (x0.29)
TOTAL
441.85k
149.24k (x0.34)

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
3800X
i5-8265U
Test#1 (Integers)
16.76k
13.66k (x0.82)
Test#2 (FP)
25.16k
21.17k (x0.84)
Test#3 (Generic, ZIP)
8.76k
5k (x0.57)
Test#1 (Memory)
24.3k
8.11k (x0.33)
TOTAL
74.98k
47.94k (x0.64)

Multithread

3800X

i5-8265U
Test#1 (Integers)
131.36k
51.36k (x0.39)
Test#2 (FP)
198.51k
79.72k (x0.4)
Test#3 (Generic, ZIP)
97.27k
16.61k (x0.17)
Test#1 (Memory)
13.4k
3.75k (x0.28)
TOTAL
440.54k
151.44k (x0.34)

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
3800X
i5-8265U
Test#1 (Integers)
17.1k
19.19k (x1.12)
Test#2 (FP)
26.59k
17.47k (x0.66)
Test#3 (Generic, ZIP)
8.91k
4.04k (x0.45)
Test#1 (Memory)
23.21k
5.97k (x0.26)
TOTAL
75.81k
46.67k (x0.62)

Multithread

3800X

i5-8265U
Test#1 (Integers)
172.04k
64.43k (x0.37)
Test#2 (FP)
214.03k
61.91k (x0.29)
Test#3 (Generic, ZIP)
97.1k
13.36k (x0.14)
Test#1 (Memory)
14.57k
3.52k (x0.24)
TOTAL
497.74k
143.23k (x0.29)

Performance/W
3800X
i5-8265U
Test#1 (Integers)
1638 points/W
4296 points/W
Test#2 (FP)
2038 points/W
4128 points/W
Test#3 (Generic, ZIP)
925 points/W
890 points/W
Test#1 (Memory)
139 points/W
235 points/W
TOTAL
4740 points/W
9548 points/W

Performance/GHz
3800X
i5-8265U
Test#1 (Integers)
3799 points/GHz
4920 points/GHz
Test#2 (FP)
5909 points/GHz
4478 points/GHz
Test#3 (Generic, ZIP)
1981 points/GHz
1037 points/GHz
Test#1 (Memory)
5158 points/GHz
1531 points/GHz
TOTAL
16847 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