Discussion Forums > Technology
Your view on AMD's Bulldozer
xShadow:
--- Quote from: Lupin on October 13, 2011, 06:41:52 PM ---The teams that made both k7 and k8 are long gone from the company. Those teams used to hand optimize the designs.
--- End quote ---
Fucking serious?! On what level of abstraction are you talking about?
If you mean that they seriously sat there and (for instance) stared at transistor-level implementations and said "oh, if we rearrange this we can avoid a break in the p/n diffusion here... YEAH!".. then that's amazing.
If you meant they looked at a gate-level implementation and optimized it via truth tables and k maps and whatnot... still insane.
--- Quote ---They control the foundries back then as well. Now, AMD no longer does that but uses synthesizeable logic units. No foundries either. Chances of them pulling another one in a reasonable timeline, while not impossible is very slim.
--- End quote ---
You talking about VHDL or something like that?
Just wondering.
Anyway, here's the Bulldozer.
Anyone wanna do some builds to see who comes out on top in price/performance?
kitamesume:
--- Quote from: xShadow on October 13, 2011, 07:07:51 PM ---Anyway, here's the Bulldozer.
Anyone wanna do some builds to see who comes out on top in price/performance?
--- End quote ---
i`m looking at the reviews...
edit: WTF is this!? http://www.newegg.com/Product/Product.aspx?Item=N82E16820313123 meh, its been 2months since i last looked at the cheapest 2x4gb kits...
[$219.99]AMD FX-8120 Zambezi - http://www.newegg.com/Product/Product.aspx?Item=N82E16819103961
[$144.99]GIGABYTE GA-990FXA-UD3 - http://www.newegg.com/Product/Product.aspx?Item=N82E16813128514
--------------------------------------------------------------------------------------------------------------------------
[$229.99]ZOTAC ZT-50301-10M GeForce GTX 560 Ti - http://www.newegg.com/Product/Product.aspx?Item=N82E16814500197
[$72.99]Noctua NH-U12P SE2 120mm SSO CPU Cooler - http://www.newegg.com/Product/Product.aspx?Item=35-608-014
[$49.99]G.SKILL Sniper 8GB (2x4GB) DDR3 1600 - http://www.newegg.com/Product/Product.aspx?Item=N82E16820231416
[$149.99]WD Caviar Black 2TB 7200 RPM 32MB - http://www.newegg.com/Product/Product.aspx?Item=N82E16822136830
[$99.99]OCZ ZS Series 750W - http://www.newegg.com/Product/Product.aspx?Item=N82E16817341049
[$89.99]LIAN LI Lancool PC-K7B - http://www.newegg.com/Product/Product.aspx?Item=N82E16811112154
--------------------------------------------------------------------------------------------------------------------------
[$109.99]Patriot Pyro 2.5" 60GB SATA III - http://www.newegg.com/Product/Product.aspx?Item=N82E16820220602
[$58.99]ASUS Blu-ray Drive - http://www.newegg.com/Product/Product.aspx?Item=N82E16827135247
===============================================================================================
[$1226.90] TOTAL
[$219.99]Intel Core i5-2500K Sandy Bridge - http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072
[$154.99]ASRock P67 EXTREME4 GEN3 - http://www.newegg.com/Product/Product.aspx?Item=13-157-265
[$1236.90] TOTAL
[$314.99]Intel Core i7-2600K Sandy Bridge - http://www.newegg.com/Product/Product.aspx?Item=N82E16819115070
[$154.99]ASRock P67 EXTREME4 GEN3 - http://www.newegg.com/Product/Product.aspx?Item=13-157-265
[$1432.90] TOTAL
Lupin:
--- Quote from: xShadow on October 13, 2011, 07:07:51 PM ---
Fucking serious?! On what level of abstraction are you talking about?
If you mean that they seriously sat there and (for instance) stared at transistor-level implementations and said "oh, if we rearrange this we can avoid a break in the p/n diffusion here... YEAH!".. then that's amazing.
If you meant they looked at a gate-level implementation and optimized it via truth tables and k maps and whatnot... still insane.
--- End quote ---
they controlled the foundries. since they don't share their designs to anyone, they can configure/implement it the way they want that works best for them provided they have the tech to do them. Intel does the same for their implementations. Amazing isn't it?
--- Quote from: xShadow on October 13, 2011, 07:07:51 PM ---You talking about VHDL or something like that?
--- End quote ---
it's more feasible for AMD to use synthesizeable blocks now. they're fabless now. they have to use what each foundry can provide. creating custom implementation for an architecture for each foundry isn't cheap.
--- Quote from: xShadow on October 13, 2011, 07:07:51 PM ---Anyone wanna do some builds to see who comes out on top in price/performance?
--- End quote ---
A 2500K would beat any of the BD in price/performance. If it's just between the BD SKUs, 8120 would probably be the best one.
xShadow:
--- Quote from: Lupin on October 13, 2011, 08:14:20 PM ---they controlled the foundries. since they don't share their designs to anyone, they can configure/implement it the way they want that works best for them provided they have the tech to do them. Intel does the same for their implementations. Amazing isn't it?
--- End quote ---
No, I kind know what you mean there. I'm just saying that the complexity of a CPU probably gets monstrous at some point. Granted, I guess they had thousands (if not more) people working on it... I guess that's why the R&D phase takes so long and is so damn expensive. I wish I could go get some experience in the actual industry... but I guess that'll have to wait till later.
--- Quote ---it's more feasible for AMD to use synthesizeable blocks now. they're fabless now. they have to use what each foundry can provide. creating custom implementation for an architecture for each foundry isn't cheap.
--- End quote ---
You're talking about this right:
http://en.wikipedia.org/wiki/Pure-play_semiconductor_foundry
From looking at that, all I can gather is that it has to follow design rules. Doesn't seem like it would be a huge limitation (design rules are a bitch though, don't get me wrong). But I guess you're saying that there's some level of customization that they lose by not manufacturing it themselves.
--- Quote ---A 2500K would beat any of the BD in price/performance. If it's just between the BD SKUs, 8120 would probably be the best one.
--- End quote ---
Kinda sucks that I still have one of my old i5's now, which is more expensive than that one is and probably does way worse.
Well, I'm still satisfied with it though.
I was considering the Bulldozer, but it looks like they didn't do too good a job with it.
TMRNetShark:
I've been looking at some of the reviews/benchmarks... it seems the only way to really get the most out of the Bulldozer is to overclock it. I guess AMD needs to put it at a "safe" power level as for it to work with most mobo/PSU combos.
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