7zip compression benchmarks with new Ryzen

[Darr2cool78]

Could anyone help me to understand the following image... (posted on Guru3d review for 3800x)

The reason why I am confused is that I found information that suggested 7zip can only use up to 8 threads when decompressing*. I am guessing that this information is incorrect if the 3900x (12c/24t) can be so far ahead of the 3700x(8c/16t) in these benchmarks? Also quite confused as to how the 3800x ended up below the 3700x haha.

I can't imagine that the 0.2GHZ of single core clock speed is the thing making this possible.

Does anyone know how many threads 7zip can actually use?

 

[Orcvader]

Image is showing decompressing, which will be different from compressing.

Either way, the amount of threads/cores it uses will entirely depend on what compression level and method 7zip is set to. By default 7zip will be using LZMA2 which itself only supports up to 8 threads when compressing.

 

[Zeed]

Assume 3900x wrecks 3700/3800 cause it's got 50% less memory Write speed and it affects copy also.

 

[humbug]

It seems to load up all my 12 threads, and in the results panel its showing roughly 1100 to 1200% so i'm assuming that is thread utilisation.

To me that image looks like its scaling with thread count, all the way up to the 2970WX. (48)