AMD Piledriver rumours ... and expert conjecture

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We have had several requests for a sticky on AMD's yet to be released Piledriver architecture ... so here it is.

I want to make a few things clear though.

Post a question relevant to the topic, or information about the topic, or it will be deleted.

Post any negative personal comments about another user ... and they will be deleted.

Post flame baiting comments about the blue, red and green team and they will be deleted.

Enjoy ...
 
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Highlights the problem: At the same speed, PD still stinks compared to IB. PD is basically relying on its speed advantage at this point.

Problem is, PD still doesn't OC any higher then Intel does, so the advantage is limited to stock clocks.

I'm going to say this one final time: The overwhelming majority of applicationd do not, and will not scale. Hence the entire BD architecture, for the desktop, was flawed from the very beginning.
 


Those updates also boost performance with discrete GPUs. It's not just for APUs. It helps the HPC market which NVidia/AMD/Intel are fighting for.

The future is fusion, but it still has several generations to catch even a $100 discrete.
 
I'm fairly impressed by Piledriver thus far. It competes well with Ivy i5/i7 in most applications, the exception of course being single threaded workloads. Gaming is a nice step forward, It beat out the PII 980 in every bench on the Tom's review, I think.

The important thing is that PD is better in every single aspect over BD. There isn't a single thing that is worse about it. IPC, clocks, heat, power, It was all improved overall.

Glad to see some better pricing at launch this time. The 4 core variants will be very good options over i3s, considering their gaming performance will be almost identical to the 8350 in most games.

I'm going to hold off this gen, mostly because I cant afford much of anything, and I would rather work around what I have now for the long term (Sound card and SSD will be next, just because of their longevity and constant benefits). I may go for Steamy if it is on AM3+.

Hours after we find out how PD is, we all already look forward to the next arch. True enthusiasts.
 


Don't get stuck on cinebench, you can run it 5 times and come up with miniscule differences. Instead on he 5800k vs 4300, look at the games...

DAO - 116 to 97
DoW II - 64 to 51
WoW - 81 to 73
SC II - 43 to 41

Does l3 cache help? 4-25% improvement.

So whats one possible explanation on cinebench?
We've always done these processor graphics performance comparisons using DDR3-1866

APUs get faster memory because of the IGP.
 

Kaveri is going to have gcn and unified memory space which will should help with gpgpu and general graphics performance. It is expected to have steamroller cores and built on 28nm instead of 32nm. They can up the transistor count by 1.3 and be in the same die area and power consumption range.
 


... ya ok, .. 5.2 ghz is really the same speed as 4.7 ghz ... last I checked, thats 500 hmz faster.

http://www.overclockersclub.com/reviews/amd_fx8350/3.htm

 


The [H] review is god awful. I hate to use the dreaded car analogy, but it's kind of like this. AMD has an engine that makes power at higher RPM and Intel has one that makes power at lower RPM. This is like running the engines at the same RPM and saying the one that needs the higher RPM blows. [H]ardOCP really hates AMD and I am absolutely not surprised to see them doing something like this.

Lets put an FX 8350 at 5.2ghz and compare it to an Ivy at max clocks of 4.6ghz. I would imagine things would look much better for the AMD, although not the greatest.

[H]ardOCP is *** and it always has been and it always will be. I got banned from their forums when they released the 7970 review since they compared it to an overclocked GTX 580 that cost a lot more than the 7970 and then said "7970 is only 15% faster than GTX 580 IT SUCKS!" and I called them out. Appearantly, being a member for 4 years means nothing if you call them out on their bullshit and they have no qualms with banning you if you call them out on anything.

I have a really good feeling that Kyle and Brent are laying down banhammers to anyone who says that FX clocks higher than Ivy and they're not meant to be compared clock for clock; also that it's BS to compare an overclocked CPU to a stock one and then say the stock one sucks.

[H]ardOCP and [H]ardForum is a place for circle jerking wankers to all jerk each other off about how good they feel that they bought overpriced hardware that they're never going to use to it's full potential. Example of [H] shitposting: http://hardforum.com/showthread.php?t=1723285

I don't know if you guys can pick up on it, but I ******* hate [H], Kyle, Brent, and the majority of the *** posting retards in their forum.
 

It would fare worse, at stock the clock difference is 500Mhz, and raising them both only slims the % between them, not to mention the widening power gap.
 


That [H] review was just really odd. Two graphs for each family of processor. Not taking price into account at all. They used to write some decent articles there, now it's just meh.

Vishera isn't stellar but I think some chips will make it into the "Best build under XYZ $" lists.
 


I agree with this as long as they start making the 8 and 6-core APUs. Is there any info on whether this will occur with steamroller or excavator?
 
can't happen and won't happen, not enough room on the chip..
another process shrink or two perhaps.?
(22nm on the same size PD chip is what I meant..)

If what AMD said about the plans on SR are true, then they'll fuse most of the GPU with the CPU, so the necessary die will be less.

SR was supposed to be made in 28nm as well, right?

Cheers!
 



Like watching the videos and reading over 10 sites full of benchmarks the 8350 is easily 15-20% better then my CPU out of the box while using a little less power consumption what's weird is gaming is one area they did a lot better in and you can clearly see a 10-15% improvement which probably has something to do with FP benchmarks that show a 15-20% improvement. Piledriver is definitely Amd's processor in all accounts this time. Like i said Amd only said a 10-15% improvement anyways which is more than what we saw with the Phenom II x6 1100T to 8150 IMHO.


 



Actually clock speed is not always representative to performance i would say Clock speed didn't make a whole 10% boost in performance. IPC went up 7-10%(on average) as posted with several benchmarks. Kinda like clocking my CPU to 3.9Ghz did not make it 18% faster on handbrake(program that stresses CPU 95+%) it made it more like 10% faster. There's reasons why this is true if i could take a guess it would be the Branch prediction hit rate shrinks as clock rates go up.
 

6 core APU might be a possibility, but not anymore than that. Honestly for MOST things in today's world 4 cores is plenty. I like the APU but the Phenom II X6 still rocks it, I'm probably going with the i5 3570K and make the APU an HTPC after new year's.
 
Steamroller is dedicated to massive IPC and latency overhauls in architecture so a 4 Core APU is more than enough, its not the cores but the integration between the CPU and GPU parts....again talk of double the iGPU bandwidth and better which is what will deliver the ultimate performance. I have a good feeling that sub $120 cards will soon be rendered obselete.
 

+1
 
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