I7950 or Sandybridge Core i7-2600K?

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mv2devnull

Golden Member
Apr 13, 2010
1,503
145
106
But that PDF (dating back to last April) seems a rare source about this LGA 1356, aka Socket B2. Wikipedia calls them "Unkown variants".
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
20,882
3,230
126
Jeez - looking at those charts makes me want to wait for Socket 2011 (or 1356)

My unborn SandyBridge desktop is already a weakling on the playground!

jebus.. 20 meg cache?

this is why i am so waiting for LGA2011.
 

WhoBeDaPlaya

Diamond Member
Sep 15, 2000
7,414
401
126
I'd say its a no brainer.... if you can wait the extra 1.5months...

A) 3.4Ghz instead of 3.06Ghz
B) 32nm ~ 45nm
C) Unlocked ~ locked multiplier
D) Faster clock, but also, clock for clock the SB is faster as well..
Honestly, the multi on the 950 is high enough that it being locked doesn't matter.
 

Dadofamunky

Platinum Member
Jan 4, 2005
2,184
0
0
My only concern would be buying into a brand-new, relatively un-debugged platform. The die shrink and the higher default clock speeds are really attractive, and kinda counterbalance the impulse towards OCing, and the IGP probably is fast enough for anything I'd be likely to do for my creative work. OTOH, I still plan to run an external GPU, and the maturity of LGA 1366 Bloomfield pretty much tips me into the the i7 950 camp. Since I can get one for $199 at MC, I'm grabbing one while I can.
 

MrTransistorm

Senior member
May 25, 2003
311
0
0
My only concern would be buying into a brand-new, relatively un-debugged platform.

Yeah, that's the thing that has me on the fence, too. I generally prefer to wait until any bugs are ironed out before I buy. When I built my old desktop, the combination of the Northwood P4 2.4C and Asus P4C800E Deluxe was already proven to be successful. The system still runs strong OC'd at 3GHz (though it's now being used as a home server).

Here's what I'm considering:

i7 950
Gigabyte GA-X58-UD5 Rev 2.0
6GB DDR3 1600 (2GBx3 Corsair Dominator)

or

i7 2600K
Gigabyte GA-P67A-UD7
8GB DDR3 1600 (4GBx2 Corsair Dominator?)

The overall cost should be close between the two options. The two boards share a lot of the same hardware, so I don't expect that there are likely to be any hardware problems this time around. There may be a few necessary BIOS updates to get the new board going smoothly, but that's to be expected.

I'm leaning towards the SB option, but I'll wait and see what the reviews are like for the p67 boards.
 

khon

Golden Member
Jun 8, 2010
1,319
124
106
Can someone explain to me what the logic would be behind buying the i5-2300 ? Why on earth would anyone do so, when you can get the 11% faster i5-2400 for $7 more ?
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
3,785
136
I don't see how what I said is bashing anything. But nothing is ever free, and this is no exception. I don't feel that Intel was foolish by developing a better integrated graphics platform at the expense of other options, but to say that there was no expense at all is patently untrue.

This was from a poster in another site, I'm going to put it in a way I understood:

With Moore's Law, and ever increasing transistor budgets plus the problem of delivering value(because consumers still can't use 8+ threads effectively), they added the GPU. Probably better to fill the fabs few % more rather than worrying about the cost of production which for a lithography monster like Intel isn't a lot.

Minor increases in production costs and R&D gets Intel lot of things:
-More laptops
-Slows GPGPU and GPUs in general
-Buy Sandy Bridge rather than older/cheaper CPU + discrete graphics
-Vast majority of the people use integrated graphics. R&D costs are made up here already.

I'm pretty sure there are indirect benefits to GPU integration, they probably learned to make a better CPU when trying to figure out how to best integrate the GPU.
 

BBMW

Member
Apr 28, 2010
90
0
0
Intel, and to some extent AMD have a problem. There's a limit to how fast they can spin the processor clock. It's a basic physics/materials problem they so far haven't been able to get around. This is why we're not seeing 20 GHz processors.

But Moore's law is still intact, so far. They can shove morn and more devices on the die. But there's only so much they can do with with basic processing. Software, at least on the desktop, hasn't really even caught up with quad core processing (this is not true on the server side), so there's a point of diminishing returns with stuffing more cores on the die.

So, they're now trying to pull more of the auxilliary chips onto the CPU die. The memory controller, the PCI controller (essentially everything that used to be the northbridge), the graphics controller/accelerator, etc.. I'm sure the southbridge will end up on there soon. Give it enough years, and they'll be a 100GB SSD built into the CPU.

Basically, if they want to sell new CPUs, this is the only path to take. There's just a limit to how much value they can add with basic processing.

I don't see how what I said is bashing anything. But nothing is ever free, and this is no exception. I don't feel that Intel was foolish by developing a better integrated graphics platform at the expense of other options, but to say that there was no expense at all is patently untrue.
 

Martimus

Diamond Member
Apr 24, 2007
4,488
153
106
This was from a poster in another site, I'm going to put it in a way I understood:

With Moore's Law, and ever increasing transistor budgets plus the problem of delivering value(because consumers still can't use 8+ threads effectively), they added the GPU. Probably better to fill the fabs few % more rather than worrying about the cost of production which for a lithography monster like Intel isn't a lot.

Minor increases in production costs and R&D gets Intel lot of things:
-More laptops
-Slows GPGPU and GPUs in general
-Buy Sandy Bridge rather than older/cheaper CPU + discrete graphics
-Vast majority of the people use integrated graphics. R&D costs are made up here already.

I'm pretty sure there are indirect benefits to GPU integration, they probably learned to make a better CPU when trying to figure out how to best integrate the GPU.

I definitely agree that integrating the GPU into the SB die was a good idea, I just was trying to say that doing so was at the detriment to other possible options. In my lowly opinion, this was probably the best route for them to take, but there were others available as well.
 

itsmevader

Member
May 20, 2010
87
0
0
One more thing stuns my mind is that why Intel is releasing more similar series. I mean to say,Instead of working on making cheap 6 cores and further 8 and 12 cores cpus, why it is focusing more on dual and quad cores only? Who is going to buy quad cores when AMD will be giving 12 cores at the time?
 

StinkyPinky

Diamond Member
Jul 6, 2002
6,832
882
126
Can someone explain to me what the logic would be behind buying the i5-2300 ? Why on earth would anyone do so, when you can get the 11% faster i5-2400 for $7 more ?

I imagine the likes of Dell and Apple will be using those CPU's. Anything to save a few dollars. It certainly seems pointless for enthusiasts like us
 

BBMW

Member
Apr 28, 2010
90
0
0
Where's the point of diminishing returns on adding cores? Can most of the software we have now even make use of dual core, let alone 6 or 8?

One more thing stuns my mind is that why Intel is releasing more similar series. I mean to say,Instead of working on making cheap 6 cores and further 8 and 12 cores cpus, why it is focusing more on dual and quad cores only? Who is going to buy quad cores when AMD will be giving 12 cores at the time?
 

BoomerD

No Lifer
Feb 26, 2006
63,440
11,767
136
One more thing stuns my mind is that why Intel is releasing more similar series. I mean to say,Instead of working on making cheap 6 cores and further 8 and 12 cores cpus, why it is focusing more on dual and quad cores only? Who is going to buy quad cores when AMD will be giving 12 cores at the time?

Very few applications can take advantage of all those extra cores...why buy something you can't possibly use?

I was very interested in the AMD Phenom II 6 core processors when I first started my research...until I found out that for my applications, (primarily games) the Intel processors are considerably faster...and use less power...making them an all-around better value for me. For other people, they would be an excellent choice.

It's about the best tool for the job.
 

Idontcare

Elite Member
Oct 10, 1999
21,118
59
91
My biggest gripe is that with SB I'm buying a GPU I'll never use, and paying for it and having it add to the heat dissipation and wattage. I this a valid concern?

That might well be a valid concern but you might be over-thinking it a bit.

Consider for example that there are over 800 supported instructions in a modern Intel CPU...are you offended at the idea/prospect that the apps you personally use might only use say 200-300 of those 800 instructions?

After all, every all those unused instructions are occupying die space for their related circuitry as well as consuming a non-zero portion of the TDP.

The GPU is just another ISA extension from the perspective you are coming at. Call it SSE6 or integrated-GPU, in both cases its dead to you if you aren't going to use it.

If you aren't worried about the fact that you probably aren't using ~60% of the core logic in your CPU anyways then why worry about the fact you won't be using the chunk of silicon occupied by the GPU?

Huh?

So we have a SB chip with lower TDP wattage, faster speed, better clock for clock, includes integrated graphics, and its the same price.

But you're bashing it because it "could" have been even faster in the CPU had they not chosen to spend time or money developing the graphics?

Martimus is a well respected poster here, if your perception of one of his posts is that he is "bashing" anything then really you are better off just assuming you completely misunderstood whatever it was that he meant to communicate with his post and as such your best path forward is to seek clarification on the post posthaste.

Anything less is usually just going to amount to being a waste of your time, or his, or all of the above.

This was from a poster in another site, I'm going to put it in a way I understood:

With Moore's Law, and ever increasing transistor budgets plus the problem of delivering value(because consumers still can't use 8+ threads effectively), they added the GPU. Probably better to fill the fabs few % more rather than worrying about the cost of production which for a lithography monster like Intel isn't a lot.

Minor increases in production costs and R&D gets Intel lot of things:
-More laptops
-Slows GPGPU and GPUs in general
-Buy Sandy Bridge rather than older/cheaper CPU + discrete graphics
-Vast majority of the people use integrated graphics. R&D costs are made up here already.

I'm pretty sure there are indirect benefits to GPU integration, they probably learned to make a better CPU when trying to figure out how to best integrate the GPU.

It's true, no different than the motivation and justification for expanding the ISA at every iteration over the years. SSE was not economically feasible on a 386, even if the desire was there to have it at the time. The integrated GPU is not so subtle as an ISA extension but the decision process involved in implementing it is very much rooted in the same.

Intel, and to some extent AMD have a problem. There's a limit to how fast they can spin the processor clock. It's a basic physics/materials problem they so far haven't been able to get around. This is why we're not seeing 20 GHz processors.

But Moore's law is still intact, so far. They can shove morn and more devices on the die. But there's only so much they can do with with basic processing. Software, at least on the desktop, hasn't really even caught up with quad core processing (this is not true on the server side), so there's a point of diminishing returns with stuffing more cores on the die.

So, they're now trying to pull more of the auxilliary chips onto the CPU die. The memory controller, the PCI controller (essentially everything that used to be the northbridge), the graphics controller/accelerator, etc.. I'm sure the southbridge will end up on there soon. Give it enough years, and they'll be a 100GB SSD built into the CPU.

Basically, if they want to sell new CPUs, this is the only path to take. There's just a limit to how much value they can add with basic processing.

A 20GHz CPU is well within the capabilities of the process technologies afforded by modern 45nm and 32nm nodes. The reason you don't see them commercially available is because the penalty for a pipeline stall on a 20GHz CPU would be so large as to make pointless the effort to clock the CPU at such a speed.

Memory latency and bandwidth is the issue here, as evidenced by the the substantial transistor budgets thrown at on-die cache hiearchies and the logic circuits invested in aggressive prefetchers.

The net value prospect is much higher to design lower-clocked architectures that are more parallel (look at GPU's for an obvious extension of this line of thought) in nature while doing a decent job at avoiding pipeline stalls in any given thread. Hyperthreading would not exist if this inefficiency were not present.
 

Idontcare

Elite Member
Oct 10, 1999
21,118
59
91
Where's the point of diminishing returns on adding cores? Can most of the software we have now even make use of dual core, let alone 6 or 8?

The same is true of adding more cache, or expanding the ISA to include more and more corner-case instructions.

Turbo-mode is intended to address this.
 

BBMW

Member
Apr 28, 2010
90
0
0
I was responding to Itsmevader's comment railing againt intel adding graphics to the die, and not more cores. My point being that higher levels of integration (adding graphics, northbridge functionality, etc.) might add more value than just adding more cores)

The same is true of adding more cache, or expanding the ISA to include more and more corner-case instructions.

Turbo-mode is intended to address this.
 

Hogan773

Senior member
Nov 2, 2010
599
0
0
Martimus is a well respected poster here, if your perception of one of his posts is that he is "bashing" anything then really you are better off just assuming you completely misunderstood whatever it was that he meant to communicate with his post and as such your best path forward is to seek clarification on the post posthaste.

Anything less is usually just going to amount to being a waste of your time, or his, or all of the above.

Perhaps "bashing" was not the correct word choice - for that I apologize, Martimus. I think he was adding extra thought and complexity from an engineer's standpoint to a simple statement that was made about "getting a GPU for free", as in, no GPU on Intel today, yes GPU on Intel tomorrow, same price, all equals a "free" addition of GPU to the customer.

No worries on my end - thanks Martimus
 

itsmevader

Member
May 20, 2010
87
0
0
I wish, if deadline for poll can be extended for some more days. I just had set it for 4-5 days. sorry for that guys. I had thought I would take a decision by this weekend but its just getting late but for some good reason I guess. But I want to thanks everyone for bringing so many valuable suggestions and points. Most importantly I don't think its a question of waiting for a month or so but rather it is now a question of What people will buy after 2 months, i.e. I79XX series or SB.

Now just take CPU aside. Its just going to some ghz difference between 950 and i7 2600k. I didn't know there was a gpu in-build in SB CPU. . Now lets focus more on GPU. considering inbuild GPU inside new I72600k and comparing it with say, GTX 460,what will your prefer? I mean what people will buy after 2 months, an I7950 with external GPU or I72600k with inbuild GPU. I can understand that no one could give exact view but I just want to know based on your experiences.
 

smakme7757

Golden Member
Nov 20, 2010
1,487
1
81
I wish, if deadline for poll can be extended for some more days. I just had set it for 4-5 days. sorry for that guys. I had thought I would take a decision by this weekend but its just getting late but for some good reason I guess. But I want to thanks everyone for bringing so many valuable suggestions and points. Most importantly I don't think its a question of waiting for a month or so but rather it is now a question of What people will buy after 2 months, i.e. I79XX series or SB.

Now just take CPU aside. Its just going to some ghz difference between 950 and i7 2600k. I didn't know there was a gpu in-build in SB CPU. . Now lets focus more on GPU. considering inbuild GPU inside new I72600k and comparing it with say, GTX 460,what will your prefer? I mean what people will buy after 2 months, an I7950 with external GPU or I72600k with inbuild GPU. I can understand that no one could give exact view but I just want to know based on your experiences.

I highly doubt the IGP in the SB CPUs will be as good as a GTX 460. I would say people would buy the i7-2600K and add a discrete GPU. You are not forced to use the inbuild IGP as it will disable its self when a discrete GPU is inserted into the motherboard.
 

Dadofamunky

Platinum Member
Jan 4, 2005
2,184
0
0
Yep, bit the bullet and got an i7 950 at MC for $199. In a month or two I'll get the mobo and RAM and do a board swap. Excited. I think I'll be skipping Sandy Bridge entirely. Wonder if the LGA 1366 is a dead end after this, or if it'll go through a few generations like LGA 775 did? Not that it matters too much to me, after getting to use a stock i7 Dell with Adobe CS5 I was immediately sold. I don't think I'll be losing much in raw performance, especially after a judicious OC. Photoshop, Illustrator, InDesign and DreamWeaver all at once on i7... oh yeah.
 

Sp12

Senior member
Jun 12, 2010
799
0
76
Well, seeing as you bought now but won't be building for a month or two I think you really did make a bad choice. I could see it if you actually going to use the proc (or need 3+ GPUs or 24GB of ram), but we all know microcenter is going to have the i7-2600K for 200$ by the time you're looking for an X58 board.
 

Martimus

Diamond Member
Apr 24, 2007
4,488
153
106
Perhaps "bashing" was not the correct word choice - for that I apologize, Martimus. I think he was adding extra thought and complexity from an engineer's standpoint to a simple statement that was made about "getting a GPU for free", as in, no GPU on Intel today, yes GPU on Intel tomorrow, same price, all equals a "free" addition of GPU to the customer.

No worries on my end - thanks Martimus

I apologize. I did take the quote out of context and added extra complexity to a simple statement. I take no offense to your statement, and I apologize for my misunderstanding of what the original post I responded to was about.
 
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