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[AMD] Get Your Rig Ready for the AMD FX Processor - Page 23

post #221 of 401
I will LOL if SB still smashes BD...
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post #222 of 401
Quote:
Originally Posted by SCollins;15219562 
I didn't say passmark was biased, I am letting you draw your own conclusions.

any benchmark that uses intel tools is biased.
Quote:
post #223 of 401
Quote:
Originally Posted by Jinny1 View Post
I will LOL if SB still smashes BD...
I still don't get why people would think that BD would smash SB.
post #224 of 401
Quote:
Originally Posted by Faint View Post
I still don't get why people would think that BD would smash SB.
FMA and XOP it does miracles particularly 256bit FMAs
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post #225 of 401
Quote:
Originally Posted by Seronx View Post
Don't take results from Asia at face value



Um, IPC isn't the statistic you should be using Operations per Cycle has lowered but that could easily be remedied by using FMA instructions



Just don't take Cinebench as fact



Don't take how he explains how Bulldozer works as fact
So you're saying don't take anything as fact yet?
The press slides looked legit,but I suppose those can be faked too.
Quote:
Originally Posted by Jinny1 View Post
I will LOL if SB still smashes BD...
Keep laughing,but BD failing to be competitive isn't good for anyone.
Quote:
Originally Posted by wuttz View Post
any benchmark that uses intel tools is biased.
That makes most benchmarks Intel biased then,why aren't there more sources bringing up the continued use of ICC?
Edited by Heavy MG - 10/7/11 at 7:55pm
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post #226 of 401
Quote:
Originally Posted by itsgucci View Post
Will this (a Sempron) run 1333mhz RAM?

I initially planned to get a cheap Athlon X2 or something to flash my BIOS, but it turns out they only support up to 1066mhz RAM or something..
Yeah, it will run it. Worse case scenario, you underclock the RAM in BIOS but it will run it. My first AM3 chip was an Athlon II X2 and it ran some G.Skill 1333 @ 1666 no problem and even ~1800 when I was just fooling around.

Would be just what you need to flash the BIOS and you'll probably end up with a nice Athlon Dual-Core for backup and testing for about ~$30.
    
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post #227 of 401
Quote:
Originally Posted by Seronx View Post
IPS

is
IPC x Clock Speed / Latency = Actual Performance
(This is simplified because there is more to it over this)
So what you're saying is the bad performance is caused by memory-performance in Cinebench? Or how 15.3 in Fritz chess isn't half of my 4.6GHz 2600ks 34.0 score?
All these leaks have pointed to BD being too late and too slow.
Quote:
Originally Posted by radaja View Post
there a thread at XS's about chew* having fun,Starcraft 2 at 7GHz stable with a FX-8150
That's awesome, but it must be a little impractical to play SC2 while constantly having to watch temperatures.
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post #228 of 401
Quote:
Originally Posted by Heavy MG View Post
So you're saying don't take anything as fact yet?
The press slides looked legit,but I suppose those can be faked too.
Don't take anything as representing anything

Till everything is known and working properly

Quote:
Originally Posted by Arni90 View Post
So what you're saying is the bad performance is caused by memory-performance in Cinebench? Or how 15.3 in Fritz chess isn't half of my 4.6GHz 2600ks 34.0 score?
All these leaks have pointed to BD being too late and too slow.
Latency is how long an instruction waits before it gets operated on

The only problem with memory is that the L2 and Memory Controller prefetchers are not as aggressive as they should be
Edited by Seronx - 10/7/11 at 7:58pm
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post #229 of 401
Quote:
Originally Posted by Heavy MG View Post
What makes IPS better than IPC? Performance is usually measured with IPC.
If BD needs to be clocked at 6Ghz to match a stock 2500K,then it is unacceptable regardless if the clock can fill the possible speed gap.
If it can produce the desired performance metric in a given power envelope, the clock speed is irrelevant.

IPS is the end of the saga, IPC just factor heavily into IPS.

and still, we have NO IDEA what real bulldozer core performance is like because we have no real hardware with which to test. Leaks could be anything, we have no capability to verify the validity.

sometime soon, all the questions will be answered.
post #230 of 401
Quote:
Originally Posted by Heavy MG;15219642 
Performance is usually measured with IPC.

IPC is not everything. even if a core is made to be 4-wide(IPC=4), if the code/app's IPC is 1.8, the core will still only be able to execute 1.8. that leaves you with a "2.2" transistors idling consuming power doing nothing.

that is why intel relies on hypethreading to keep those cores busy.

BD on the other hand, has "narrower cores" 2 complex + 2simple.
that's more than enough resources to optimally run real world/practical apps out there whose IPC ~1.8. but narrower cores can clock higher, therefore, better performance.

the reality is, amdahl's law favors a CPU designed for higher clock rate but lower IPC than the available ILP in the program. that is BD.

unfortunately, bentmarks have unrealistic IPC. this is why bentmarks are misleading.
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