Quote:
Originally Posted by
melgross 
If you read the articles on this, you will see that AMD is stating that they BELIEVE that to be true. That doesn't make it true. And they're talking about server workloads, not the average for what most people do.
So you have no problem with HyperThreadings large variety of performance increases (or even decreases) depending on the workload?
Intel says that dual-core mobile Sandy Bridge will be 20% faster than Arrandale. So is that what Intel BELIEVES to be true? And does that make Sandy Bridges real performance increase over Westmere 10%?
Oh, and AMD BELIEVED that Magny-Cours would give 50%-60% more performance than Istanbul, they actually got 80%-119% more.
Quote:
Originally Posted by
melgross 
I'd like to see a link to that. They wouldn't be making a big deal about it if it were only increasing the dies size by 5% for the extra integer cores.
http://www.amdzone.com/phpbb3/viewto...st=0&sk=t&sd=a
The OP there works for AMD so he knows the numbers.
Quote:
Originally Posted by
melgross 
Same article
See article.
Quote:
Originally Posted by
melgross 
I'd rather see a statement of umbers, not take a look at the pictures.
Measure them yourself. (Hint: One companys cores are 50% bigger than the other companys on the same process.)
It's possible. But with AMD's record, they may not get it out on time anyway, and then they will be competing with upgraded chips from Intel as has happened the past two years.[/quote]Im assuming youre fine with Q3 2011 for Sandy Bridge E?
Quote:
Originally Posted by
melgross 
They might give UP TO 80% in multithreaded situations. That's what AMD is saying. These aren't full cores, integer or otherwise. Read the article and a couple of others. You'll see.
I did. It says 2 integer cores, each of them more powerful than a K10 integer core. Hence my over 33% performance increase comment on my last post.
And why not up to 35% for HyperThreading? Because according to the link you posted, thats exactly what it is.
Of course they did.[/quote]Exactly.
Quote:
Originally Posted by
melgross 
It's got poor FP performance compated to Intel, and they knoe it.
because they will be offloading FP instructions to the GPU.
Quote:
Originally Posted by
melgross 
That pretty much says a lot. If Intel has the same core number, it will always beat these chips, easily.
They wont have the same core counts at same prices or same TDPs. As Ive shown, AMD will generally have higher core counts than Intel at equivalent prices/TDP. Thats been my main point here, and once I refuted your counterpoint you evade the situation entirely.
With Sandy Bridge, Intels not increasing core counts at all, except in two areas (high-end desktop and server), while AMD has slowly done so in all segments, especially servers. In servers AMD has double the cores of Intel, and thatll continue next year. In desktops, if Thubans prices are any indication, Zambezi will be priced against 6-core, maybe 4-core Sandy Bridge. Llano brings quad-core down to even lower TDPs (as if 25 W Champlain wont be enough).
So what ends up from there is that AMD can make a CPU comparable to (sometimes worse, sometimes better, depending on the segment) Intels in multithreaded situations by adding more cores, even though Intel spent all the work designing one or two new microarchitectures (Nehalem and Sandy Bridge). Thats AMDs small-core strategy, whether accidental (because they didnt have the resources to make a new microarchitecture) or deliberate. More cores for less money and lower TDP.
Intel has and will have single-threaded advantage, AMD will have multithreaded advantage (they already do in a number of cases), and AMD will have the GPU advantage. AMD took a big hit in 2006-2009, but from 2010 the tables are slowly turning.
AMD wont have the fastest CPU in notebooks and desktops, even with Bulldozer. But for Apple, thats not an issue because they arent using the fastest notebook and desktop CPUs anyway.
Quote:
Originally Posted by
melgross 
Yes, funny that AMD would now use the inferior technology, and suddenly claim it's better.
Doesnt matter because now they have the advantage. Or how about this? Why didnt Intel continue using their superior dual-die approach? 12-core Westmere would beat 12-core Magny-Cours, no questions there.
Quote:
Originally Posted by
melgross 
Most apps we use still can't use more than two cores. That will be true for a while. And when they do, it's rarely more than four.
How many of those apps use 100% of a core? Id like more cores for video encoding and other intensive tasks thank you very much.
Plus with only 2 or 4 task threads the HyperThreading you mentioned wont be useful on a number of Intel CPUs.
Quote:
Originally Posted by
melgross 
It will be years before software catches up. And that includes using the GPU for most of the FP, or vector math. The OS's are using it more, led by Apple, but programs are trailing very slowly.
Thats why Apple hasnt used AMD CPUs yet. I am looking at the future. Many people who criticize AMDs chips are looking at only the past or present. When software does catch up (in addition to the software that already use multiple cores and GPUs), AMD will be in a very good position. What about Intel?
AMD has done well in HPC. It's an area that Intel has ignored for several years. Look at the power ratings in various Anandtech articles rating Intel and AMD. Intel is ahead virtually all the time when comparing comparable chis, and even some that are not so comparable.[/quote]Ive read them. Magny-Cours is close to Westmere in performance. And youre missing price again. Magny-Cours is cheaper.
Quote:
Originally Posted by
melgross 
I'm still not convinced.
30 W quad-core with 480 shader GPU.
Quote:
Originally Posted by
melgross 
Really?
Go read the article I linked to. Over 33% more integer performance for 33% more cores. Bulldozer also increases FP performance so one module would be faster than two K10 cores. Oh, and for about the die area of one K10 core.