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Ryzen 7 3800XT vs Core i9-7980XE


Description
The 3800XT is based on Zen 2 architecture while the i9-7980XE is based on Skylake.

Using the multithread performance as a reference, the 3800XT gets a score of 508.9 k points while the i9-7980XE gets 1223.8 k points.

Summarizing, the i9-7980XE is 2.4 times faster than the 3800XT. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
50654
Core
Matisse
Skylake-X
Architecture
Base frecuency
3.9 GHz
2.6 GHz
Boost frecuency
4.7 GHz
4.4 GHz
Socket
AM4
LGA 2066
Cores/Threads
8/16
18/36
TDP
105 W
165 W
Cache L1 (d+i)
8x32+8x32 kB
18x32+18x32 kB
Cache L2
8x512 kB
18x1024 kB
Cache L3
2x16384 kB
25344 kB
Date
July 2020
May 2017
Mean monothread perf.
78.2k points
76.43k points
Mean multithread perf.
508.89k points
1223.79k 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
3800XT
i9-7980XE
Test#1 (Integers)
17.57k
31.16k (x1.77)
Test#2 (FP)
27.38k
28.13k (x1.03)
Test#3 (Generic, ZIP)
9.35k
6.65k (x0.71)
Test#1 (Memory)
23.9k
10.5k (x0.44)
TOTAL
78.2k
76.43k (x0.98)

Multithread

3800XT

i9-7980XE
Test#1 (Integers)
176.08k
560.19k (x3.18)
Test#2 (FP)
219.88k
516.97k (x2.35)
Test#3 (Generic, ZIP)
100k
123.94k (x1.24)
Test#1 (Memory)
12.93k
22.69k (x1.75)
TOTAL
508.89k
1223.79k (x2.4)

Performance/W
3800XT
i9-7980XE
Test#1 (Integers)
1677 points/W
3395 points/W
Test#2 (FP)
2094 points/W
3133 points/W
Test#3 (Generic, ZIP)
952 points/W
751 points/W
Test#1 (Memory)
123 points/W
137 points/W
TOTAL
4847 points/W
7417 points/W

Performance/GHz
3800XT
i9-7980XE
Test#1 (Integers)
3738 points/GHz
7081 points/GHz
Test#2 (FP)
5827 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
1989 points/GHz
1512 points/GHz
Test#1 (Memory)
5085 points/GHz
2386 points/GHz
TOTAL
16638 points/GHz
17371 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