More Sandy bridge results?

[dangerman1337]

I'm just going to post here and see the flames :

http://forum.coolaler.com/showthread.php?t=251959

http://i245.photobucket.com/albums/gg66/JCorn3ll/Others/xx/SBx4-1.jpg

(The second one is supposedly a dual socket motherboard with two octo core sandy bridges (likely LGA2011)).

 

[Ben90]

65+ multiplier. Much better than 57x on a 100mhz bus

 

[ther00kie16]

Dual socket boards already exist eh? Maybe Aigo will show one off sometime in the near future.

 

[Edrick]

Hrmmm, what to do with 32 threads.....

I don't know about dual socket, but I am looking forward to LGA2011.

 

[Acanthus]

I need more results on an average 24/7 water setup instead of extreme cooling.

I want to know if 4.9-5.1ghz on water with a $200 mobo is a reasonable expectation.

 

[edplayer]

I need more results on an average 24/7 water setup instead of extreme cooling.

I want to know if 4.9-5.1ghz on water with a $200 mobo is a reasonable expectation.

you are going to have to wait till after its out. A reasonable expectation will be based on a large sample size.

 

[Ben90]

I want to know if 4.9-5.1ghz on water with a $200 mobo is a reasonable expectation.

Fortunately since the clock generator is now on the CPU, motherboards wont have that big of an impact on overclocks anymore. Basically the only thing that's going to set them apart is power delivery and possibly asynchronous clocks on the extreme extreme highend.

$200 x58 motherboards can easily go over 5ghz using a chip with an unlocked multiplier. Subtract $30, since the P65 chipset will most likely cost $40 and a few dollars because we wont wont need quite as much power to the socket and I could see high quality boards around the $150 range.

 

[cbn]

I know the dual cores won't be as popular as the unlocked quad cores, but I just have to wonder how Sandy Bridge will fare in comparison to Clarkdale and Arrandale?

 

[ilkhan]

Dual cores are dead for enthusiests. No unlocked multi means they're not gonna OC at all. You might get a bit by adjusting turbo gains, but not enough to come near what a 2500k or 2600k is gonna do at $50-85 more.

 

[cbn]

Dual cores are dead for enthusiests. No unlocked multi means they're not gonna OC at all. You might get a bit by adjusting turbo gains, but not enough to come near what a 2500k or 2600k is gonna do at $50-85 more.

That is true, but they will still matter for laptops....and I wonder if IPC and/or xtor leakage will be significantly improved for that application.

In contrast, Clarkdale and Arrandale have some sort of problem with their memory controller.

 

[ilkhan]

AFAIK the only problem with the clarkdale/arrandale IMC is its not actually an IMC since its still across the QPI bus. Thus no real latency improvements despite being "integrated". Despite being the only mobile dual core nehalem, arrandale had/has several disappointing quirks.

 

[StrangerGuy]

AFAIK the only problem with the clarkdale/arrandale IMC is its not actually an IMC since its still across the QPI bus. Thus no real latency improvements despite being "integrated". Despite being the only mobile dual core nehalem, arrandale had/has several disappointing quirks.

If you think Arrandale was bad....Then quad-core mobile nehalem is worse:

Old 45nm process, hotter and eats more power
Clocked too low for a quadcore (720qm = 1.73GHz). What's the point of having a quadcore when it barely beats the dual-core mode @ 2.8GHz? (Remember core scaling has diminishing returns)
No integrated IGP for switchable graphics = have fun sucking the battery life dry with your always on 5870m!

But at least you get your on-CPU IMC back...

 

[ilkhan]

heh. true. Fortunently that seems to be fixed with sandy. TDP isn't any better, but much faster clocks on the quads. Still, 45-55W is really pushing a laptop chassis and approaching the heat of the old mobile P4 chip. My current chip is an arrandale, next laptop will be an ivy quad. I certainly hope the 22nm process shrink brings the quad core TDP down 10-20W.

Its funny with sandy. Look at the 2540M vs the 540M; For the same TDP, the core is improved, the graphics are improved, the IMC is improved. But the clocks are basically the same. 66Mhz faster base, couple hundred Mhz faster on turbo. And thats it. It'll add up to 15-25% improvement overall, but thats not the 40-50% we see with the desktop chips (2500 vs 760). Its a worthy update, but not worth an upgrade

 

[cbn]

Its funny with sandy. Look at the 2540M vs the 540M; For the same TDP, the core is improved, the graphics are improved, the IMC is improved. But the clocks are basically the same. 66Mhz faster base, couple hundred Mhz faster on turbo. And thats it. It'll add up to 15-25% improvement overall, but thats not the 40-50% we see with the desktop chips (2500 vs 760). Its a worthy update, but not worth an upgrade

I know the TDP is the same, but we have to hope either the chip leaks less at idle or the turbo mode for the iGPU is more flexible. (From what I gather Arrandale didn't really extend battery life over 45nm CULV....for whatever reason.)

 

[ZipSpeed]

Hrmmm, what to do with 32 threads.....

I don't know about dual socket, but I am looking forward to LGA2011.

Distributed Computing guys will have an orgasm!

 

[ilkhan]

I know the TDP is the same, but we have to hope either the chip leaks less at idle or the turbo mode for the iGPU is more flexible. (From what I gather Arrandale didn't really extend battery life over 45nm CULV....for whatever reason.)

Oh I know the performance of CPU and GPU are both better. But its annoying that intel hasn't pushed the TDP back down. The original 130nm Pentium-M had TDPs in the mid 20s. Its frustrating that (admittedly with double to four-times the number of cores, GPU, mem controller, and chipset now included but at 32nm) TDPs have gone up so far. The lowest TDPs available are 18W, pentium-M started at 7W.

 

[RussianSensation]

Distributed Computing guys will have an orgasm!

Depends on what DC project.

Put it this way, HD5870 does 200,000 BOINC points/day in MilkyWay@home. HD4890 does 130,000 BOINC points in the same bench. In comparison a Core i7 860 @ 3.9ghz is ~ 9000-10000ppd.

Yup, a single HD5870 is about as fast 20 Core i7s @ 3.9ghz in some DC projects.

5 minutes using an AMD HD4850 GPU, requires 6 hours using one core of an AMD Phenom II processor at 2.8 GHz.

Add other projects like Collatz Conjecture and the soon to be revamped Folding@Home , and crunching on the CPU will be obsolete hehe.