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Ryzen 9 5900X vs Core i9-7980XE


Description
The 5900X is based on Zen 3 architecture while the i9-7980XE is based on Skylake.

Using the multithread performance as a reference, the 5900X gets a score of 840.1 k points while the i9-7980XE gets 1223.8 k points.

Summarizing, the i9-7980XE is 1.5 times faster than the 5900X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a20f10
50654
Core
Vermeer
Skylake-X
Architecture
Base frecuency
3.7 GHz
2.6 GHz
Boost frecuency
4.8 GHz
4.4 GHz
Socket
AM4
LGA 2066
Cores/Threads
12/24
18/36
TDP
105 W
165 W
Cache L1 (d+i)
12x32+12x32 kB
18x32+18x32 kB
Cache L2
12x512 kB
18x1024 kB
Cache L3
2x32768 kB
25344 kB
Date
November 2020
May 2017
Mean monothread perf.
89.82k points
76.43k points
Mean multithread perf.
840.11k 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
5900X
i9-7980XE
Test#1 (Integers)
24.34k
31.16k (x1.28)
Test#2 (FP)
26.8k
28.13k (x1.05)
Test#3 (Generic, ZIP)
12.12k
6.65k (x0.55)
Test#1 (Memory)
26.55k
10.5k (x0.4)
TOTAL
89.82k
76.43k (x0.85)

Multithread

5900X

i9-7980XE
Test#1 (Integers)
263.12k
560.19k (x2.13)
Test#2 (FP)
353.9k
516.97k (x1.46)
Test#3 (Generic, ZIP)
159.07k
123.94k (x0.78)
Test#1 (Memory)
64.01k
22.69k (x0.35)
TOTAL
840.11k
1223.79k (x1.46)

Performance/W
5900X
i9-7980XE
Test#1 (Integers)
2506 points/W
3395 points/W
Test#2 (FP)
3371 points/W
3133 points/W
Test#3 (Generic, ZIP)
1515 points/W
751 points/W
Test#1 (Memory)
610 points/W
137 points/W
TOTAL
8001 points/W
7417 points/W

Performance/GHz
5900X
i9-7980XE
Test#1 (Integers)
5071 points/GHz
7081 points/GHz
Test#2 (FP)
5584 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
2526 points/GHz
1512 points/GHz
Test#1 (Memory)
5530 points/GHz
2386 points/GHz
TOTAL
18712 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