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i7 2600k vs i5 2500k worth the $100? - Page 3

post #21 of 72
Sorry, yes they are threads...
Both are quad CORES but the 2600k has HT which adds 4 threads.
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post #22 of 72
Quote:
Originally Posted by kairi_zeroblade;12122491 
its not 8 CORES..it has 4 NATIVE cores and has 8 THREADS on it..to elaborate..each core has 2 THREADS..

You need to edit this so that it's in H1 font, bold, and underlined.
post #23 of 72
HT is just a layering trick, its semi effective in certain situations. Although in my experience the 2600k overclocks slightly better than the 2500k, maybe binning.
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post #24 of 72
Get the 2500K if it's mostly for gaming and use that $100 to get a good GPU, cuz good GPU is also important for gaming.
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post #25 of 72
Quote:
Originally Posted by I am from Caspiar it sunk;12122416 
Technically speaking, the threads don't "do" anything. Hyperthreading is a certain kind of technology used to improve parallelization of certain types of computations. Each processing core has a corresponding "virtual core" when you use hyperthreading. The applications that use the API calls to support hyperthreading on an operating system that supports hyperthreading can use these two virtual processors per core and distribute the workload between them, sometimes. That is, you don't get a complete 200% gain per core, but the speedup is noteworthy, and it is highly dependent on the software application, its "hyperthreaded-awareness", and the computation it is crunching must be parallelizable.

Sorry for being nitpicky and a bit off-topic but this isn't quite correct. Only the operating system needs to be aware of HyperThreading so it can schedule threads to run evenly across all physical cores, otherwise it might schedule threads to run on two virtual cores that correspond to the same physical core, leaving other cores idle while putting all the load on one.

There is no "HyperThreading API" that applications have to use to work better on HyperThreaded CPUs. It's entirely up to the OS and its thread scheduler whether threads run on "real" cores or "virtual" cores. Programmers only have to use threads in code, we're not aware of where they go nor can we control it.

That said, OP unless you do a ton of heavy video editing or encoding, you probably won't benefit from a 2600k vs a 2500k. The $100 would be better spent getting a better GPU since games are more likely to utilize the extra GPU power than CPU.
Edited by mott555 - 1/24/11 at 7:31am
post #26 of 72
Quote:
Originally Posted by mott555;12123043 
There is no "HyperThreading API" that applications have to use to work better on HyperThreaded CPUs. It's entirely up to the OS and its thread scheduler. Programmers only have to use threads in code, we're not aware of whether they go to a real core or a virtual core nor can we control it.

If you were correct, I would agree with you.

smile.gif

Programmers only have to use threads in code is exactly what I am talking about. There is a way to code "in threads" and this is very different from the old single core coding structure.

If you follow the hyperthreading guidelines, and attempt to spawn a new thread, that request is not always granted by the OS. And, your code must take the appropriate action(s) as a result of the granting/denial of the request.

This collective set of coding differences I was lumping into the term "API", which may be a little grandiose since a "true API" contains a much larger collection of calls framed in a certain structural way.
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post #27 of 72
Buy a 2500K or get a better GPU. The thing is your CPU will bottleneck a current GPU quite severely. If you have the cash get both, but if you have to choose only one then get the new GPU and then pick up a 2500K. I had a e6320 at 3.0GHz with my GTX 470 and I was lucky to get 30FPS in Mafia 2. Now, I get 60-70+ no problem at all.
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post #28 of 72
Quote:
Originally Posted by I am from Caspiar it sunk;12123145 
If you were correct, I would agree with you.

smile.gif

Programmers only have to use threads in code is exactly what I am talking about. There is a way to code "in threads" and this is very different from the old single core coding structure.

If you follow the hyperthreading guidelines, and attempt to spawn a new thread, that request is not always granted by the OS. And, your code must take the appropriate action(s) as a result of the granting/denial of the request.

This collective set of coding differences I was lumping into the term "API", which may be a little grandiose since a "true API" contains a much larger collection of calls framed in a certain structural way.

Sounds like we're just disagreeing on terminology then. An API is the public interface to a compiled library with functions or classes you can use, not coding guidelines. Those are just coding guidelines.
post #29 of 72
Like many other people hve stated, keep the CPU you got and OC it if it already isn't and just buy a good GPU.
    
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post #30 of 72
Thread Starter 
im going for the 2500K with a MSI P67A GD65 or the Asus P8P67 PRO motherboard.
And next month ill buy a new high-end GPU. Thank you everyonee!!! This thread realy helped me allot!!!
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