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post #11 of 26
Thread Starter 
Quote:
Originally Posted by Mighty Neph View Post
I've found this to be a very objective approach in analysis of Bulldozer. Very informative.
http://www.youtube.com/watch?v=jOVJnszQvnU
Mighty Neph, +rep for a very informative video I needed to see. This guy really gets into it and boy does he have an itchy nose! Maybe I missed out on the performance of a 2500k but changing over now would put me out mega £££, ah well eh.

Quote:
Originally Posted by jlells01 View Post
how many times was an AM3+ build suggested based solely off of the "you'll be able to go BD" reasoning?
I have never asked about BD recommendations myself; with this one I just went with my instinct. To be honest I'm really happy with a lovely crossfire ready board and fx x4 chip that will probably play games flawlessly, i've had zero problems with my phenom II & board combination. But you know, i'm not really a big benchmark head, as long as I get the gaming/general performance down smooth I am proper happy. big thanks for your input.


Quote:
Originally Posted by Tokadub View Post
Gaming is the most important factor for me in my computer needs and Bulldozer is SERIOUSLY lacking...

...Overall Bulldozer has absolutely no redeeming qualities for a user such as myself. The benchmarks it excels in seem to be random, unpredictable, and stuff that really isn't that important to me to begin with.
Goes for me too, gaming is one of the highlights of my rig but i'm sure BD will easily cope with the demands of that.

The unpredictability/randomness is probably down to its adolescence. Fingers crossed nothing goes wrong.
    
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post #12 of 26
Thread Starter 
Quote:
Originally Posted by Blameless View Post
I remember the AMD, Cyrix, Intel struggles, the Pentium II lanuch, the Athlon Classic launch, the PII recall, the Pentium IV debacle, the P4C Northwood revival, the Athlon 64, the first dual-cores, the return of P6 in the Pentium M, the Core 2 launch, the Phenom Disappointment, the Core i7 revolution, the Phenom II revival, Sandy's Bridginess, and now Bulldozer.
Wow, Blameless, you've been through a lot. That reminded me of the Blade Runner quote: "I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the dark near the Tannhauser gate. All those moments will be lost in time... like tears in rain... Time to die. "

Quote:
Originally Posted by rew017 View Post
While not a long time poster, I just spent the last 3 hours reading everything that is "officially" available. Here is the short of it.

BD single threaded performance is currently even or worse than thuban and significantly worse than 2500/2600k.

BD heavily threaded performance in most cases is significantly better than thuban and even or beating 2500k. In a few cases BD multi threaded beats 2600k.

turbo core is now a great feature that adds ~5% performance to most tasks (single and multi-threaded)

Power is much lower than PII and slightly over 2500/2600k at idle. As soon as all cores are stressed or a couple cores are turbo'd power is at max TDP. Overall consumption in an active system is higher than PII and 2500/2600k.

OCs reliably to 4.6k on air, and around 5k on water. Power consumption increases drastically with OC.

Overall, if you are a gamer, 2500k is a clear winner. If you are doing heavily threaded stuff, 8150 is generally weaker than 2600k, probably better performance per dollar than 2600k, and for sure better performance and value than 2500k. You should still double check for your specific workload b/c some results defy the general concepts. For the typical user, it seems like 2500k is the best value on the market.

There is some controversy in the results since nearly all reviews were based on the AMD provided CrossHair V motherboard. There are a couple of outliers that did not use CHV and had some contradictory numbers. However, even in these numbers, the general trends hold true. Basically it's a matter of how much worse is single threaded and how much better is multi-threaded in relation to the 2500k. (ie. a couple reviews place BD closer to 2500 single threaded and closer to 2600 multi threaded)

On top of that is alot of information on projections of why single thread performance may be poor. There is definitely a bias that the Windows 7's task scheduler does intelligent scheduling for Intel cores and is not aware of AMD's module architecture. Comparing some results to the Developer Preview of Windows 8, performance on AMD goes up by 5-10% while intel remains effectively the same. It appears that the new branch prediction engine in BD could use some fine tuning which could give a boost to single and multi threaded apps. Finally, cache latency is long.
nice one rew017, you seem to have fine picked a lot of info there. I will need to have a deeper look into some of those. I've been following BD for months, just so much information has been spewed out over the last 24 hours, its unreal.
Edited by pale - 10/12/11 at 5:22pm
    
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post #13 of 26
Thread Starter 
Quote:
Originally Posted by MinitroN View Post
"I'm not going to listen to any of the useful advice given and just go with my own made up conclusions."

Winnar.
wow, i've already bought what i've bought... might as well see what happens.

Conclusions are this: if its ****, not a problem, i'll just get rid.

What's your problem man?
    
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post #14 of 26
I've already posted my 2 cents on the subject a few times.

Keep in mind, I could care less how Bulldozer does as I'm set for quite a while with my i5 2500k. However I was honestly hoping for a better competitive product from AMD. I was hoping to throw the FX 4100 into HTPC builds for light gaming.

The way I see it, Bulldozer still isn't finished yet (my opinion). It's blatantly obvious that its a great potential chip, look at its multi threaded performance. The problem is with single threaded performance and power consumption. I feel this could very easily be a software issue. I'm also not sure that the official reviews were overclocked PROPERLY, like we would do it here at OCN.

I'm waiting to see what REAL users do with it, and how it performs for them. After proper BIOS updates, and MS Hotfixes.
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post #15 of 26
Quote:
Originally Posted by pale View Post
wow, i've already bought what i've bought... might as well see what happens.
"I've already committed half my stack to the pot and I know he has a better hand than me. Screw it, I'll just go all-in to see what happens."

Just trying to save you a few dollars.
    
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post #16 of 26
Quote:
Originally Posted by MinitroN View Post
"I've already committed half my stack to the pot and I know he has a better hand than me. Screw it, I'll just go all-in to see what happens."

Just trying to save you a few dollars.
Since he's already got the board, it wouldn't HURT him any at all to wait a few more weeks and see what REAL users with the proper software and BIOS's can do with the chip either though.

Intel's platform isn't going anywhere anytime soon. It's always an option if he jumps ship.
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post #17 of 26
Honestly, if you want to get a 4-core Bulldozer CPU, don't do it. Core for core, the Phemon II architecture is faster -.- Because of that, you would actually make a downgrade or at most a sidegrade if you can get a large overclock on your CPU. If you really want an upgrade your best bet is a Phenom II X6 or an Intel CPU (sadly). From the start, bulldozer was designed for servers where load is shared between hundreds of cores so the more cores the better. On the consumer market though, load is shared between up to 4 cores except for a few softwares. For that reason, Bulldozer is a useless architecture for most uses that you and I would do and can only be used for some highly-threaded tasks.

Sorry
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post #18 of 26
Tru-dat.
    
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post #19 of 26
Thread Starter 
Quote:
Originally Posted by MinitroN View Post
"I've already committed half my stack to the pot and I know he has a better hand than me. Screw it, I'll just go all-in to see what happens."

Just trying to save you a few dollars.
The advice is fine, almost appreciated but why not try putting it that way in the first place.

Obviously, for some starter enthusiasts, like myself, who've made indiscriminate 990fx purchases BD is starting to look like a mistake. But ATM for me, its a ballache to sell, i'd like to see this through anyway, see what happens. experience an unknown chip. Intel maybe when i'm richer.
    
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post #20 of 26
Bulldozer situation abridged: looks like what happened when the original phenom came out it's lack luster and and fails/ tails the phenom 2 in some benches and single thread apps. pile driver might fix this, kind of how phenom 2 was much better then the phenom 1.
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