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05-03-22 07:26:29 AM
Jul - Computers and Technology - Your thoughts on the AMD FX-8xxx? (8 Core processor) New poll - New thread - New reply
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Posted on 11-02-11 02:23:44 AM Link | Quote
Basically, the world first 8 core processor. Which can be found Here

The processor I am using is the AMD Phenom X4 955 Black Edition that has been overclocked and has an additional Core thanks to the Motherboard. So I own a 5 core processor running at 4.0 Ghz on air alone. But I've been looking at these 8 core processors for a good while now to use for Video editing.

Reading other reviews; it seems intel is still king in all departments if you have the money to throw around by just 10%.

Personally, I'm an AMD kinda guy. If my games don't run good on graphics. I can simply overclock my card and make sure it runs like a champ (Have not done this yet). Processing power, I honestly don't feel that in terms of gaming you won't need this. But hey, I'm like Tim the toolman Taylor. I would love to have more power.

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Posted on 11-02-11 02:40:01 AM Link | Quote
Hell, I'd go for one if I was building a new desktop. They certainly seem like they can hold their own, and I've always wanted to see how they'd hold up. (I'd probably go for a GeForce if I got a new video card, though, considering the fact that I do run Linux on this thing sometimes.)

When it comes to laptops, though... I'd rather use Intel, since most AMDs I've seen don't really last nearly as long.

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Posted on 11-02-11 11:00:31 AM Link | Quote
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For the time being, adding more cores isn't going to improve the situation for most tasks. It does well with stuff like graphics editing and some music software, as well as 3D stuff. Some video encoders will alsp distribute accross cpu cores, too, at I guess some loss in encoding quality. Intel is totally kicking ass in per-core performance.

I tthink for us to see any real improvement beyond individual core performance, we'll probably haave to see a whole new architecture, possibly specialized for parallel operations, or possibly a more standard system of processors that would be similar to shaders, but not tied to some shitty graphics driver and completely black-boxed. Or maybe even FPGA type units to build DSPs and whatnot.

It'd still be for pretty specialized operations. We will need to work on making an individual unit very fast because there are some operations that just won't parallelize (unless synchronization can be perfected). This includes adding more instructions like they have been doing that can perform common tasks quickly. Seems kind of unsettling, though. For much more advancement, either compilers will have to become impossibly smart, or assembly language programming will get much more important. A lot of the real world tasks you see where some new cpu kicks ass in performance tend to be those where they made extensive use of SSE or something.

Anyway, I'm going on about stuff I only vaguely know about. I just don't think the "more and more cores" trend will bear fruit for much longer.

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Posted on 11-02-11 09:18:08 PM Link | Quote
Not worth it for the time being.

I have have Phenom II X6 (and a Phenom II x4 in my laptop) and nothing is really optimized for that number of cores, sadly.

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Posted on 11-02-11 10:26:16 PM Link | Quote
Originally posted by Aerakin
nothing is really optimized for that number of cores
Actually, I have a Phenom II x6 specifically because x264 is optimized for multiple cores. 7-zip also does multithreaded compression, and I wrote some scripts to run an exhaustive search through compression settings in pngout with six instances (one per core) running at a time.

So there are things optimized for that many cores, just not the kinds of things most people use. I wouldn't have gotten the x6 if I couldn't use it to its full potential.

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Posted on 11-02-11 10:45:32 PM Link | Quote
It's also fair to assume that as technology advances that more CPU power is going to be required, most likely for functions that would be optimized by multicore processing, and will soon become the norm.

That being said, I'd be glad to get an octocore if it weren't for the fact that I'd have to buy an entirely new computer and I just don't have that kind of money.

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Posted on 11-03-11 03:15:13 AM Link | Quote
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They don't write programs to use those kind of cores yet, or even any time soon. I've coded some myself--there's a ton of power just being wasted even with just TWO cores. With eight, you're going to use maybe 4 at most in even the most cutting edge programs.

I'd just get a really high clock speed 4-core myself. AMD, yeah, since I hate Intel, but still. Eight cores... four of them aren't going to be used unless you're multi-multi-multi-tasking AND have eight sticks of memory AND a RAID array. Since, well. Eight mega processes are gonna stress the whole system, not just your CPU.

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Posted on 11-03-11 01:54:21 PM Link | Quote
Originally posted by Metal_Man88

I'd just get a really high clock speed 4-core myself. AMD, yeah, since I hate Intel, but still. Eight cores... four of them aren't going to be used unless you're multi-multi-multi-tasking AND have eight sticks of memory AND a RAID array. Since, well. Eight mega processes are gonna stress the whole system, not just your CPU.




Thats a first response from you I agree on and laugh at with you, but if you fold like I do, have virtual machine going testing software hardware problems chrome, ms office and speech recognition yeah I can see why some people would a need a eight core, probably me.
But I think a very good quadcore or hexa-core can handle just about any needs, some dual cores I would recommend but not for everyday use, wether you stick with amd or intel.



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Posted on 11-03-11 02:04:20 PM Link | Quote
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Dual core not recommended for every day use? That's retarded. Dual core is plenty for the majority of people, even gamers, really. Also, virtual machine can't really test hardware problems, since it's a virtual machine. And all the crap you mentioned would be plenty fine on a quad core or even a fast dual core.

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Posted on 11-03-11 03:01:36 PM (last edited by Mike at 11-03-11 12:46 PM) Link | Quote
Originally posted by paulguy
Dual core not recommended for every day use? That's retarded. Dual core is plenty for the majority of people, even gamers, really. Also, virtual machine can't really test hardware problems, since it's a virtual machine. And all the crap you mentioned would be plenty fine on a quad core or even a fast dual core.


answer me this, if you can old harware into a computer and use virtual machine and run 2000 or xp anything else.
does virtual machine not detech whats attached to your pc so you can run it or test ?

also like i said some dual cores are not meant for every day use especially when working in a business environment for todays needs.

yes dual cores are good for what you mention but when you really need the extra core or 2 to handle a task maybe youll see what im getting at.

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Posted on 11-03-11 03:25:18 PM Link | Quote
I don't see having that many cores as useful presently. A fair bit ahead of time for personal use. Unless your OS can assign that many cores and command them all. In which case I guess it'd be potentially useful for at least some level of use. Though nowhere near full potential.

Also, Mike; you missed a bracket there.

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Posted on 11-03-11 03:51:03 PM Link | Quote
Originally posted by dotUser
I don't see having that many cores as useful presently. A fair bit ahead of time for personal use. Unless your OS can assign that many cores and command them all. In which case I guess it'd be potentially useful for at least some level of use. Though nowhere near full potential.

Also, Mike; you missed a bracket there.


Yeah I understand exactly what you mean and paul guy says, depending on your needs like you a dual core would be awsome, but some people do take it as being a power user.
Also thanks for telling me I missed a bracket, I was typing on a motorola q9h, if you see more mispelled letters when I reply usually its me trying to type on a littly keypad.

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Posted on 11-03-11 05:17:43 PM Link | Quote
Originally posted by dotUser
I don't see having that many cores as useful presently. A fair bit ahead of time for personal use. Unless your OS can assign that many cores and command them all. In which case I guess it'd be potentially useful for at least some level of use. Though nowhere near full potential.


Essentially this is where I'm getting at. Octacore, hexacore, quadcore processors are a little ahead, but eventually everybody's going to need them. 7 years ago, dual core seemed extremely frivolous, so paulguy's logic is faulty in so that he's only thinking about the current applications of 4+ core processors, and not how they can potentially be used to their fullest extent in the future.

He's right that it's frivolous at this very moment, but in 7 years octacore processors can definitely become the norm or approaching norm status.


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Posted on 11-03-11 09:50:51 PM Link | Quote
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Well, the issue is there are only some tasks that can really benefit from parallelization. Many others need too much synchronization or depend on a large data set at any time, making sharing data difficult. Most you will run in to a lot of overhead and end up being slower or get very little improvement. Dual core is useful because you can avoid issues with 1 core chugging away at something and losing system responsiveness. Beyond 2 cores, you're limited mostly to seeing benefits in big number crunching processes which require little to no synchronization or a reasonably small shared set of data. Stuff like x264 is pretty ridiculously engineered but even for that, threading is a compromise.

Currently, I think increasing core counts is just marketing nonsense. It's something the majority of people buying these things (gamers) won't see much benefit from. As end-user type applications go, it'd probably mostly only benefit those who do video editing if the program is capable of efficiently threading effects. Audio might too, but it's usually at a cost of latency, which I guess is a bigger deal for audio than video editing. Blender and probably other 3D rendering programs aree "embarrassingly" threadable, since it's a relatively small and fixed shared data set. Of course, servers and other such large, multi-user systems really benefit. AMD's 8 core chips would probably do fantastically in a server. However not sure how well they'd benefit in x264, which I believe makes decent use of SSE and I'm not sure what SSE level AMD chips are capable of. Last I heard was 2. It would be nice if AMD would catch up with intel with a lot of stuff, like individual core performance and SIMD extensions. Trying to cram more and moree cores in seems to be more like struggling to market something because they can't seem to get their stuff up to par, which is really unfortunate.

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Posted on 11-04-11 12:31:34 AM Link | Quote
Originally posted by paulguy
However not sure how well they'd benefit in x264, which I believe makes decent use of SSE and I'm not sure what SSE level AMD chips are capable of. Last I heard was 2.
The AMD FX processors are capable of up to SSE4 with some other stuff thrown in. Besides, one of the x264 developers got himself an FX-8100 development sample, so there's already been optimization efforts. (The first FX-specific optimizations appeared right around the same time the CPU was released to the public.)

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Posted on 11-04-11 04:14:14 PM Link | Quote
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Problem is, in 7 years, those eight-core processors of today will be too slow and considered jokes.

I had pondered on buying a 4-CPU server board back in 2000; the server boards were made in 98-ish. Well guess what?

Their time did come--today--but with only 200 MHz per CPU, you can guess how pathetic that would be today.

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Posted on 11-04-11 11:32:14 PM Link | Quote
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Heh, in 2000 you would've seen almost no benefit at all if you were just doing desktop stuff. :p Well, 2 cores would always be generally useful since things can at least be split between OS/environment and applications, so you won't lose responsiveness like you do with a single core system.

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Posted on 11-05-11 12:17:17 AM Link | Quote
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Yes. That one to two processor/core jump is probably the most important one. Beyond that, it's highly dependent on the implementation of your programs.

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Posted on 11-05-11 06:20:11 AM Link | Quote
A buddy that I worked with (Who is from australia) has this to say about the processor.

"Right now, and with that processor. It's junk, and here is why:

Intel right now has the strength to run the same computing power as the Bulldoser as the i7 has. If not i5 in terms of gaming. Only reason you should purchase this CPU is if you want to waste your money".

So, according to him and just about every other Intel user on the planet agrees: This CPU is a waste of money. Not to mention 8 cores is not only overkill but what programs can use all eight cores?

I'm still sticking with AMD. Just not this processor.

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Posted on 11-10-11 04:42:06 AM Link | Quote
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Intel people like to overstate the difference in power but it isn't that big.

On the other hand, as an AMD user I find the extra cores mostly useless too. 4 is the highest I'd ever go and that's overkill.

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