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 AMD Bulldozer & Bobcat

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imbibug
post Jan 9 2013, 05:56 PM

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QUOTE(ValityMental @ Jan 9 2013, 02:06 PM)
Is it worth going for APU? A8 5600K?
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Not enough info. What are you going to be using it for?
imbibug
post Jan 14 2013, 10:58 AM

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QUOTE(eadam @ Jan 12 2013, 07:54 PM)
Guys.. watch this video review..

This video shows that all the benchmark for gaming on several popular sites are marketing gimmick that biased to Intel. Sadly for AMD.
Here the video

youtube video- eu8Sekdb-IE

Long live AMD  thumbup.gif
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Marketing gimmick? AMD had to cut prices by over 1/3 to tempt buyers because they suck.

The person in your youtube video was comparing the integrated graphics performance, which is not what a gamer would use. Seriously think about it, 36fps (8350) vs 21fps (3750) in Metro 2033 at 1080? He couldn't have been using a video card.

The Bulldozer/Piledriver models have been a big disappointment from AMD. And the way things are going AMD's cpu division is in serious jeopardy. And I'm saying this as a fan of AMD.
imbibug
post Jan 14 2013, 04:03 PM

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QUOTE(freakenstein @ Jan 14 2013, 01:17 PM)
No. They were using a video card. HD7870
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Ok. Which makes it even more puzzling.
This review is probably the only one which shows metro/warhead being faster with the Piledriver. He made a mistake with the 3570-1080 in Warhead xsplit by saying 20-something when it was clearly showing 30-something (which is faster than the 8350 in his benchmarks). That and the abnormally low framerates leads me to believe that he either broke something in the setup or accidently benched the Intel cpus at higher resolutions.
imbibug
post Dec 30 2013, 10:41 PM

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QUOTE(Acid_RuleZz @ Dec 8 2013, 11:08 AM)
Follow up,

This slide was proven fake by AMD Manager of APU/CPU Product Reviews James Prior.
Yet the future of FX lineup is still unknown since the real roadmap shown Vishera will stay throughout 2014.

Earlier this year AMD announced they will not release a new GPU in 2013 yet a couple of month later they released HD7790 which was a new GPU with an improved architecture and in Q4 they released 7000 series successor, the R9-290s.  laugh.gif
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Fake or not, the AM3+ is a dead end and its highly unlikely that an 8 core steamroller will ever come out. AMD has slashed headcount twice around last year and so its going to be highly improbable that AMD can continue on the existing AM3+ roadmap.

The 7790 and the r9-290 weren't the 8 series which people were expecting but rebadged 7 series Tahiti era cards. The r9-260 will be one of the first new gcn2 cards.
imbibug
post Jan 2 2014, 10:17 PM

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QUOTE(Acid_RuleZz @ Jan 2 2014, 02:35 PM)
Yeah I did say that. "Yet the future of FX lineup is still unknown since the real roadmap shown Vishera will stay throughout 2014."

HD7790 and R9-290 is not rebadged. HD7790 is Bonaire and R9-290 series is Hawaii not Tahiti. There's no R9-260, only R7-260 which is a rebadged of HD7790 + TrueAudio chip.
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Still unknown? AMD is trying hard not to say that the product line is dead.The context of your earlier post makes it sound like the FX is going to continue post-Vishera which is highly unlikely. AMD is in a worse position several years ago with less resources to devote to continuing their big core consumer line.

I made a typo. What I was getting at was that the 2xx series are very small tweaks from the 7 series, not even a real tick (using the tock tock analogy).

You sound as if all the problems that AMD is having was intentionally directed for the last 7 years to get to HSA which doesn't make sense. The path AMD is taking now is more unplanned and remedial.

Around 7 years ago, AMD had better performing solutions vs Intel. They were the first to write the spec for x64 and had X2s and could charge premium prices for them which was a turnaround from their usual low margin price slashing strategy. Then AMD messed up big time by delaying the development of the K10 which also pushed Bulldozer ahead by a year or two. AMD paid way too much for ATI, abandoned gpgpu (for HSA?) and seemed to ignore ATI.It was only after Rory Read came in and figured out that BD/PD/SD disaster wasn't going anywhere, decided to cut AMDs losses by slashing headcount and focusing on smaller FM2 APUs. The the console deal (which Nvidia rejected for being too low margin) allowed AMD to leverage its mantle api which otherwise wasn't going to happen. And its still a open question on whether the market will be willing to take on a new proprietary api.
imbibug
post Jan 6 2014, 08:51 PM

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QUOTE(+Newbie+ @ Jan 6 2014, 11:15 AM)
Actually it does. It's even been stated in a few interviews. The whole point of AMD buying ATI was to eventually lead to an APU. ATI was bought in 2006. They have spent those few years, first merging the companies, and then merging the architecture of the CPU and GPU. They're doing something that has never been done before. It took them years of R&D to get to where they are.

The first core to be designed for this merger purpose was Bulldozer. While it had an impressive 8 cores, each core shared 1 FPU operations with another core, which essentially handicaps the core. The whole point of that was because FPU operations was meant to be offloaded to the GPU. This is the reason why Bulldozer sucked so badly, because it had no GPU to offload FPU operations to, so it had very poor IPC compared to Intel which meant it totally depended on clockspeed to claw back some parity with Intel. Which obviously never happened, with Bulldozer having poor power consumption and yield, etc.
That's true for products on 32nm. IINM, 2014 onwards, AMD will be moving everything to 28nm which is TSMC. So moving forward, the main constraint will only be production capacity of TSMC. It's true though, that GF really screwed AMD over and set them back behind 1 year in their schedule.
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But how was Bulldozer going to be an APU when it was already running hot at at a large chip size at what 1.1B transistors? Slapping on more transistors would make the whole project infeasible. And Bulldozer also had relatively poor ipc for its integer cores so it wasn't just a problem of having less fpus. Llano wasn't competitive with i3 in integer heavy benchmarks. Llanos fusion style gpu wasn't that useful outside of gaming either.

imbibug
post Jan 7 2014, 09:47 PM

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QUOTE(+Newbie+ @ Jan 7 2014, 09:04 AM)
Bulldozer was a template for future CPUs in APU. You're right though. Bulldozer suffered not just from the FPU design, but inefficiencies in areas such as cache latencies really handicapped it.

Llano doesn't use Bulldozer, IINM. It was K10 and then Piledriver (Trinity and Richland) in APUs. The first gen APUs weren't competitive for obvious reasons. The knowledge and expertise just wasn't there yet. Adoption of heaviliy multithreaded and APU accelerated programming was also very limited. Most applications used 1 - 3 cores and GPU acceleration of normal applications like photoshop didn't even exist.

PS: It appears I'm mistaken about 28nm for AMD. They've gone back to GF (presumably because TSMC couldn't match demand?) Please don't screw this up again. icon_question.gif  icon_question.gif  icon_question.gif
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Bulldozer doesn't have an APU architecture. Bulldozer was always going to be competing with Intel's big core cpus.
The first APUs the Fusion/HSA line starting with the Llano which has an integrated gpu. Trinity and the upcoming Kaveri have more hardware which provides better integration of the cpu/gpu.

You're correct about the Llano using K10 cores. I got mixed up because AMD skipped over K9.
imbibug
post Jan 9 2014, 11:20 AM

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QUOTE(+Newbie+ @ Jan 8 2014, 10:07 AM)
I didn't say Bulldozer has an APU architecture. I said it was a template for future CPUs used in APUs. E.g. Piledriver used in Trinity. Steamroller used in Kaveri. That was its sole purpose.

AMD was never going to have enough resources to create two different CPU designs for two different applications (one for CPU and one for APU was just never going to happen). So they chose to make one design only which was optimized for APUs because they saw that as the future.
It looks supremely interesting. But as always, it would be better to wait and see how it actually fares in real life. There are still too many unknowns. Power consumption, real world performance, pricing. Still, it would be interesting to see this in the laptop market and any small form factor PC such as a HTPC.
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Ok I don't disagree with your there.

What I was trying to say from my first reply to your post is that they couldn't have planned for Bulldozer to be a flop with lower ipc compared with the K10 with such low integer workload performance. AMD certainly did not plan to shed 1/3 of its headcount from 2007 vs today. AMD couldn't have planned to for its market share of the high margin server segment to crash from 2006. AMD didn't plan to have to shell out big bucks to GF to reduce their purchase commitment in Dec 2012 because there was low demand for their BD/PD line. This all happened because AMD executives were making out big time back then, their employee morale was low and AMD was bleeding talent so its no surprise that their subsequent products were subpar.
imbibug
post Jan 24 2014, 10:51 PM

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QUOTE(Najmods @ Jan 15 2014, 08:37 PM)
CPU clock is lower if you read the reviews thoroughly. If anandtech have some brains they would do clock-to-clock comparison. Their review is absurd putting top-of-the-line i7 4770K in the mix and then say top Intel offering beats it in minimum framerate in Company of Heroes 2, they should highlight the review item NOT the top of the line parts. They should say instead that AMD despite using integrated GPU and weaker core managed to go foot-on-foot with Intel best. Stupid biased site.

They should put quad core AMD FX-4xxx series and Phenom II in the mix to see for improvement and whether if its worth the upgrade.
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The review did state that the new Kaveri was alot more efficient per clock so I don't get your point. Their previous reviews (and reviews elsewhere) normally include a low end discrete card for comparison, so its not like that website tried to paint Kaveri in a bad light.

imbibug
post Jan 25 2014, 11:52 AM

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QUOTE(Najmods @ Jan 24 2014, 11:48 PM)
They saying COH2 is a tough game, why don't they say Kaveri done well in this game instead of this?
Why make such statement when the difference is just less than a couple of frame per second difference? I may be nitpicking but it is annoying they focus on other solution when that solution is more expensive and the differences is negligible
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OK I had a good look at the review and the statement you were talking about refers to the iris pro beating out the Kaveri. While it seems unfair, it doesn't spoil the rest of the review. That review website has a special section for AMD and takes money from that company. They are trying to look even handed especially after getting criticised for their method of reviewing Trinity.

 

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