Guess I'll get an Ivy next year... (The CPU not the saur)
Specs: intel i5 3570k @ 3.4GHz;
16Gb RAM; Raedon HD 7900;
Win8 64-Bit
16Gb RAM; Raedon HD 7900;
Win8 64-Bit
Poll: Who do you think will be faster? You do not have permission to vote in this poll. |
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Sandybridge | 32 | 82.05% | |
Bulldozer | 5 | 12.82% | |
Same | 2 | 5.13% | |
Total | 39 vote(s) | 100% |
* You voted for this item. | [Show Results] |
Bulldozer vs. Sandybridge
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10-13-2011, 04:22 AM
Guess I'll get an Ivy next year... (The CPU not the saur)
Specs: intel i5 3570k @ 3.4GHz;
16Gb RAM; Raedon HD 7900; Win8 64-Bit 10-13-2011, 05:18 AM
What a disappointment. Guess skipping another generation or two again.
Intel I5 2500k 4.6Ghz@1.34v w/ Noctua NH-D14
Asus P8P67 Pro OCZ Agility 2 60GB SSD G. Skill RipJaw X 8GB 1600 EVGA GeForce GTX 560 Ti Superclocked Creative X-Fi XtremeGamer Fatal1ty Pro Thermaltake ToughPower 750W Rocketfish Aluminum Full Tower Case 10-13-2011, 09:19 AM
(This post was last modified: 10-13-2011, 09:36 AM by NaturalViolence.)
This is what boggles my mind.
4 core sandy bridge = 900 million transistors at 32nm (about 1/3 of that is the integrated graphics processor so 600m is cpu logic/caches/bus/etc.). 8 core bulldozer = 2 billion transistors all cpu logic/caches/bus/etc., no integrated graphics processor, 32nm frabrication In other words bulldozer has 3 times as many transistors if you ignore the IGP. Yet sandy bridge blows it away, big time. Do the math, sandy bridge is about half an order of magnitude more efficient in terms of processing power vs. transistor count. Also bulldozer was an attempt to focus on multiprocessing and clock rate yet sandy bridge still overclocks better despite having a shorter pipeline, less transistors, and smaller core logic.
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."
-Ron Swanson "I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. " -Mark Antony 10-13-2011, 06:31 PM
Only shows that Intel is the only way to go.
When my 2600K have done it's share, it's a new Intel that's gonna be installed and nothing else. And if I didn't have the 2600K I would have wait for the upcoming 2700K and take that over the Bulldozer. 10-13-2011, 09:25 PM
(10-13-2011, 06:31 PM)Maverick Hunter X Wrote: Only shows that Intel is the only way to go.Yeah, I should've done the same, really, looking back. You'd have thought the signs would've been all too clear even months ago, but I do like my AMD... I'm going to get Z75 board with Ivy come spring, I believe.
Intel i5 4670k @ 4.5GHz | ASUS R9-290 DC2 | 20GB Corsair PC3-12800 DDR3 RAM
10-14-2011, 12:23 AM
(10-13-2011, 09:19 AM)NaturalViolence Wrote: In other words bulldozer has 3 times as many transistors if you ignore the IGP. Yet sandy bridge blows it away, big time. Do the math, sandy bridge is about half an order of magnitude more efficient in terms of processing power vs. transistor count.The IGP takes up about 1/5 of the die. BD has 2x the cache (L3$ takes about a 1/3 of the die instead of 1/5 on SNB so AMDs cache is less dense further increasing die size) where most of those transistors are going and 3 more HTT links that a single socket SNB doesn't need. 10-14-2011, 03:31 AM
If the FX-6100 overclocks above 4.5 as easily as 8k and the price drops even further It's gonna be a bang for the buck. Performance when OC'd should be on par/higher than 2500k so im okay with this. Awaiting Dolphin SMG/LLE tests as well as PCSX2 SSE4.1/AVX.
Obviously FX-8150 being priced between 2500k and 2600k is not worth buying, looking forward to a price drop or lower clocked variants. F S M I believe. 10-14-2011, 06:05 AM
(10-13-2011, 09:19 AM)NaturalViolence Wrote: This is what boggles my mind. Hmmm, at this point this is a bit more technical then what I'd try to discuss ^^ But you made me too curious, there is nothing more that could influence this much on performance? @lamedude Is it enough to make this difference? I was expecting SandyBridge to beat BD specially on single threaded performance, since per core performance wasn't one of the goals, but I imagined something far more... sutil. And what about overclocking? I mean, what are these things dependent on, besides the obvious? something about the socket format/structure maybe? I dunno, as I said I'm very nooby about this
OS: Windows 10 Pro 64bit Creators Update
CPU: AMD Phenom II X4 960 @ 3.6 GHz Graphics Card: Nvidia GeForce GTX 960 2GB GDDR5 Motherboard: Gigabyte GA-870A-USB3 AM3+ Revision RAM: HyperX 8GB Dual Channel @ 1600Mhz 10-14-2011, 07:15 AM
(This post was last modified: 10-14-2011, 08:37 AM by NaturalViolence.)
Quote:The IGP takes up about 1/5 of the die. BD has 2x the cache (L3$ takes about a 1/3 of the die instead of 1/5 on SNB so AMDs cache is less dense further increasing die size) Yeah I was thinking of the dual core sandy bridge die. Still even with 1/5 that means 720million transistors if you remove the IGP. Even with 720m bulldozer still has about 3x the number of transistors if you exclude the IGP, so my point still stands. It's odd that bulldozers cache is so much less dense yet still has a much higher latency and much lower bandwidth than sandy bridge. Quote:where most of those transistors are going and 3 more HTT links that a single socket SNB doesn't need. But the die shot shows all of the HTT links together using only about 5% of the die space. It doesn't seem to use much space at all. Nearly all of the die space appears to be taken up by the modules and caches. Quote:But you made me too curious, there is nothing more that could influence this much on performance? Huh? I don't understand what your sentence is asking. As I stated above bulldozer does beat sandy bridge in heavily multithreaded integer heavy applications but loses in every other area since it is inferior in every other way (it's only real advantage is having 8 integer cores). Sandy bridge overclocks better according to all of the reviews I've seen.
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."
-Ron Swanson "I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. " -Mark Antony
yeah I was asking why was this happening, now I got that
I didn't understand your post entirely, now I see what you mean
OS: Windows 10 Pro 64bit Creators Update
CPU: AMD Phenom II X4 960 @ 3.6 GHz Graphics Card: Nvidia GeForce GTX 960 2GB GDDR5 Motherboard: Gigabyte GA-870A-USB3 AM3+ Revision RAM: HyperX 8GB Dual Channel @ 1600Mhz |
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