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how to tell which cpu is better

post #1 of 8
Thread Starter 
with a gpu there are certain specs that you can look at and tell which is better, the number of processors, core clock, effective memory clock, etc... but i just learned yesterday that, that is not so with cpus and that a lower clocked intel, can beat a higher clocked amd, even if that Intel CPU is a full 1ghz lower than the amd, so i want to know for my next build, how to tell which CPU is better, how to tell how many instructions per clock, SEE, etc...
post #2 of 8
What is your budget?

What are you going to do with this PC / CPU?

Are open to overclocking / unlocking cores?

How long do you plan to keep this PC or how long before you want to upgrade?



Please answer and it will be much easier.....

typer.gif

If you are just looking for general theoretical discussion about CPUs then please disregard the above.
The New Girlfried
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The New Girlfried
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post #3 of 8
Quote:
Originally Posted by phantasmor;12668987 
with a gpu there are certain specs that you can look at and tell which is better, the number of processors, core clock, effective memory clock, etc... but i just learned yesterday that, that is not so with cpus and that a lower clocked intel, can beat a higher clocked amd, even if that Intel CPU is a full 1ghz lower than the amd, so i want to know for my next build, how to tell which CPU is better, how to tell how many instructions per clock, SEE, etc...

It's really more complicated than you want to think about. For instance back in the day (and possibly still iirc) there was this little Intel biased compiler that a lot of people used for their programs that actively set out to make AMD CPUs perform worse than Intel ones by reading the CPUID. If it was an Intel chip the program ran fine; if it wasn't then the program slowed down.

Then you have architecture design along with transistors and other things most of us don't really understand (there are a few on here that have guides explaining it if you want to read).

Basically, it's program based. Some work better for Intel and others work better for AMD. You have to look at the programs you're going to use and find out for yourself. It's the same as with GPUs. Some work better for AMD cards and others work better for Nvidia cards.
     
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CPUGraphicsRAMHard Drive
Core i3 2370M Intel HD3000M Elpida 4GB DDR3 1333 Toshiba 5400RPM 
Optical DriveOSOSOS
Generic DVDRW Kubuntu x64bit Win7 Home Premium 64bit Bodhi Linux 64bit 
Case
Acer Aspire TimelineX 4830T 
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AthlonIIX4 640 3.62GHz (250x14.5) 2.5GHz NB Asus M4A785TD-M EVO MSI GTX275 (Stock 666) 8GBs of GSkill 1600 
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post #4 of 8
Well, even with GPUs this isn't true. Some GPUs "beat" others in some things, and not other things, often due to firmware or graphic card options (try doing physx, or folding on an AMD GPU).

Similarly sometimes a newer architecture chip will outperform an older architecture chip in some applications, depending on die size, number of cores, clock speed, etc. There is no rule of thumb or else no one would need benchmarks, which we all do.

Anandtech has a nice processor comparison tool you can use however, giving you a number of common applications to compare CPUs against each other:

http://www.anandtech.com/bench/CPU/2
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Bleeding Edge
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post #5 of 8
Thread Starter 
well.... it is going to be sometime next year, but i want to do a LOT of gaming, emulation of ps2 games(that i own) i do not want to overclock unless i can do it in a way that will not hurt the life of the CPU, and i want to keep this computer at least 5-6 years with no upgrading

but for right now i am "just looking for general theoretical discussion about CPUs"

edit: do they intentionally make these things complicated? thank god for benchmarks
Edited by phantasmor - 3/9/11 at 9:44am
post #6 of 8
Quote:
Originally Posted by phantasmor;12669158 
well.... it is going to be sometime next year, but i want to do a LOT of gaming, emulation of ps2 games(that i own) i do not want to overclock unless i can do it in a way that will not hurt the life of the CPU, and i want to keep this computer at least 5-6 years with no upgrading

but for right now i am "just looking for general theoretical discussion about CPUs"

edit: do they intentionally make these things complicated? thank god for benchmarks


OK your path leads over the Sandy Bridge way.

Forget about CPU frequencies and read up on how each CPU performs under the load (specific apps/games). Right now i5-2500K and i6-2600K is the chit! You can build $1000 PC and be happy for the next 2-3 years. After that upgrade RAM and GPU for 2 more years of happiness.


grouphug.gif
The New Girlfried
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The New Girlfried
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SAMSUNG Spinpoint F3 500GB SATA 3.0Gb/s LG DVD±RW SuperMulti Drive Black SATA Windows 7 Samsung 23" 
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post #7 of 8
Thread Starter 
my last build cost me 400$ and it had a 5770 a 3ghz athon x4, and ddr3 1600 ram, so i was hoping that i could build one with a really good gpu: the 5870, the same ram, and just use a Intel CPU, Intel CPU based mobo, and only spend at the most 300$ more, but i do have like 1800$ that i COULD spend, but if it can be avoided then i would like to do that, besides my last build was paid for, and ultimately for, my brother

so, intel is better in every way, shape, and form, but they are a but-load more expensive, and the sandy bridge isn't even the enthusiast level? i would like to know how much the enthusiast level costs
Edited by phantasmor - 3/9/11 at 10:47am
post #8 of 8
Thread Starter 
edit: i want to discuss my build in detail like what mobo, gpu, etc...
Edited by phantasmor - 3/9/11 at 12:40pm
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