2 ms·
There is a huge difference between the two. Hyperthreaded cores only give you a speed up in specific situations where additional work can be squeezed into the p
by spullara 13y ago
There is a huge difference between the two. Hyperthreaded cores only give you a speed up in specific situations where additional work can be squeezed into the pipeline.
http://en.wikipedia.org/wiki/Hyper-threading http://en.wikipedia.org/wiki/Hyper-threading
The speedup is very work dependent and in practice for things like web pages and api servers you generally only get another 20-40% of performance from them rather than a full 100%.
- thrownaway2424 13y agoIn other words, you have no idea what the difference is. A hyperthreaded Intel CPU has M functional units and N decode/issue pipelines. A non-hyperthreaded Intel CPU has M' functional units and N' decode/issue pipelines. A hyperthreaded Intel CPU with hyperthreading disabled has M functional units and N/2 decode/issue pipelines.