Intel and AMD CPU percentage

[Zenith777]

Recently I watched some cpu performance test on youtube between intel and amd. I noticed that amd cpu usage lower than intel. The amd that tested is ryzen 7 3700x and ryzen 7 3800x with 50-60% usage. On the intel side it's intel i7 9700k with 85 to almost 100% usage. Is this normal between these cpu or it's just that way between both of them?? I have I5 7600k and it running with almost 100% usage on recent games.

 

Please answer, because I'm looking to upgrade my rig in near future, between amd or intel..

[vanished]

I assume the tests you were looking at were gaming.  It's because games (any program really, but some scale better than others) can only use so many cores, and AMD tends to have more cores above and beyond what games can take advantage of, thus lower total usage.

[Princess Luna]

The 3700X and 3800X have double the threads so naturally it has more headroom on what it can do at once.

 

Most games only uses about 8 threads, so the 8 threads 9700K can give it's all it has, the 3700X has 16 threads thanks to SMT, while in theory once you're over 50% on the 3700X you're already using all your cores but you can rely on SMT now to keep stacking tasks for the CPU.

 

That is why the 9700K is often faster still for gaming, it has 8 better cores for the gaming software. It also is why the R5 3600 games the same as the 3700X as both have more than 8 threads and both are essentially the same core.

[Mister Woof]

12 minutes ago, Zenith777 said:

Recently I watched some cpu performance test on youtube between intel and amd. I noticed that amd cpu usage lower than intel. The amd that tested is ryzen 7 3700x and ryzen 7 3800x with 50-60% usage. On the intel side it's intel i7 9700k with 85 to almost 100% usage. Is this normal between these cpu or it's just that way between both of them?? I have I5 7600k and it running with almost 100% usage on recent games.

 

Please answer, because I'm looking to upgrade my rig in near future, between amd or intel..

Ryzen 7 3700x/3800x is an 8 core, 16 thread processor.

 

The Intel 9700k is an 8 core, 8 thread processor. This specific cpu lacks hyperthreading, which allows for the OS to schedule more tasks to fully utilize the CPU cores. The 3700x/3800x has simultaneous multithreading, which is a similar technology to hyperthreading.

 

The operating system views these "threads" as individual logical cores (even though they are not actually cores) and if the 3700/3800x is at 50% utilization, it means that half of the cores/threads are being utilized.

 

If the same load is applied to the 9700k which only has 8 threads, it may read closer to 100% utilization.

 

This technology isn't linear, but the general ballpark figure is 25% increased efficiency.

 

Hyperthreading/simultaneous multithreading is a critical efficiency feature that is standard on almost all new mainstream chips. Except Intel.

 

[Mira Yurizaki]

Also note that CPU % Utilization in Task Manager is not indicative of how much the CPU is taxed. It's just how often it's running something. So a CPU running at 50% may not actually be using 50% of its resources. It's just 50% of the time it's not idling.