Q&A

Is it bad to have more threads than cores?

Is it bad to have more threads than cores?

Having more threads than cores means useful work can be done while high-latency tasks are resolved. The CPU has a thread scheduler that assigns priority to each thread, and allows a thread to sleep, then resume after a predetermined time.

What happens if you have too many threads?

First, partitioning a fixed amount of work among too many threads gives each thread too little work that the overhead of starting and terminating threads swamps the useful work. Second, having too many threads running incurs overhead from the way they share finite hardware resources.

Is 8 threads good for gaming?

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It will still be good for gaming for a long time as long as there are games that don’t specify more than 8 cores as the minimum required hardware. Most games depend on decent GPU power and RAM to achieve performance. CPU only matters for CPU-bound work and most dual core/four thread processors are more than capable.

Is 4 cores 8 threads better than 6 cores 6 threads?

Processor with same architecture or same level core performance, 4 core & 8 thread will be perform almost equal to 6 core & 6 thread.

Can games use 8 cores?

Eventually, yes, games are bound to use more than 8 cores.

What is thread starvation?

Starvation describes a situation where a thread is unable to gain regular access to shared resources and is unable to make progress. This happens when shared resources are made unavailable for long periods by “greedy” threads.

Does more threads mean faster?

More threads or more cores means a processor can process more instructions simultaneously. This makes a processor effectively faster, but not absolutely faster.

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Is Valorant GPU or CPU?

Valorant is a game that strongly prefers to use your CPU over your GPU. However, the game was built with people who have low specs in mind. It was created to be able to run on nearly anything on the market with a capable CPU and doesn’t need a good GPU to run well.

Is 8 core overkill for gaming?

Generally speaking, six cores is usually considered optimal for gaming in 2021. Four cores can still cut it but would hardly be a future-proof solution. Eight or more cores might provide performance improvement, but all this depends mainly on how a particular game is coded and what GPU the CPU would be paired with it.

What is the advantage of having more threads than cores?

Having more threads than cores means useful work can be done while high-latency tasks are resolved. The CPU has a thread scheduler that assigns priority to each thread, and allows a thread to sleep, then resume after a predetermined time.

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Why does having more threads mean more CPU usage?

Having fewer threads would not fully utilize the CPU resource (at some point there will always be I/O to wait for), having more threads would cause threads fighting over the CPU resource.

Why is my CPU running slower than it supports?

It is pretty straightforward and simple to understand. Having more threads than what your CPU supports you are actually serializing and not parallelizing. The more threads you have the slower your system will be. Your results is actually a proof of this phenomenon.

What is the difference between a single process and multiple threads?

On a single core CPU, a single process (no separate threads) is usually faster than any threading done. Threads do not magically make your CPU go any faster, it just means extra work.