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Sandy Bridge & 6-core processor

GLSauron said:
Many people are going to upgrade to Sandy, most of the people from this site who are going to upgrade are going to move to the i5-2500K (myself included).
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Wouldn't it be prudent to wait for the final prices and benchmarks before deciding which chip to get?
 
plugwash said:
Wouldn't it be prudent to wait for the final prices and benchmarks before deciding which chip to get?
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Not really. There are only 2 unlocked chips. That is the cheaper unlocked one without HT.

Most overclockers will probably be getting that one.
 
GLSauron said:
s775 had like 5 different electrically incompatible versions, and s1366 will (arguably) still be the top socket post s1155 (until s2011 comes out). AFAIK you can't even put a first gen s775 P4 into a late s775 socket, it won't work.
s1155 and s2011 will be around through Ivy Bridge, but people need to be realistic that haswell will probably need new sockets too.
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I never really understood what's so upsetting about Intel sockets.

It certainly makes it straightforward. They save some of the higher-end stuff like tri-channel RAM and tons of PCIe lanes for their 1366, so they can keep costs down on 1156 hardware.

Everyone lauds AMD for having a superior socket system, but it's really not the case. You have semi-compatible sockets, but it creates a quagmire of qualifiers. Everything AMD from the past 4 years is compatible, IF [a whole bunch of stuff]. AM2+ works on AM2 with reduced functionality. AM3 works on AM2+ boards, but AM2+ CPUs won't work on AM3 boards. AM3+ is coming out, so you'll probably be able to use those on AM3 boards but maybe not AM2+ boards, and who knows if AM3 will work on AM3+ boards? Some stuff is DDR2, some stuff is DDR3, and certain chipsets have enough PCIe lanes for x16/x16 but others don't, and most of the chipsets are available on multiple sockets (i.e. a 770 chipset board might be AM2+ or AM3)

Sorta like the weird LGA-775 compatibility, where the socket was around for so long and underwent so many changes that compatibility is really confusing. Some takes DDR2, some takes DDR3. Same physical socket for Netburst and Conroe, but plenty of compatibility issues.

Whereas LGA-1156 and LGA-1366 have very simple compatibility. Every LGA-1156 CPU works in LGA-1156 motherboards and uses DDR3.

I think the minor change in name is what's confusing people. I don't know exactly why they are still branding SB as i3, i5, and i7, but it's a new architecture. The difference from i7-xxx to i7-2xxx is as major of a difference as that from Pentium to Core or Core 2 to Core i.
 
JL6speed said:
Wasn't the 1366 supposed to be the "future-proof" socket? Looks like I didn't get screwed over getting the 1156 XD
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I used 1366 for 2 years now and going.
I call that pretty much futureproof.

people buying the lesser platform is now going to upgrade in less time than me.
I could wait for q3 and the replacement of 1366 which sandy isnt but a 5ghz possible overclock sounds great in my ears.
 
nalc said:
I never really understood what's so upsetting about Intel sockets.

It certainly makes it straightforward. They save some of the higher-end stuff like tri-channel RAM and tons of PCIe lanes for their 1366, so they can keep costs down on 1156 hardware.

Everyone lauds AMD for having a superior socket system, but it's really not the case. You have semi-compatible sockets, but it creates a quagmire of qualifiers. Everything AMD from the past 4 years is compatible, IF [a whole bunch of stuff]. AM2+ works on AM2 with reduced functionality. AM3 works on AM2+ boards, but AM2+ CPUs won't work on AM3 boards. AM3+ is coming out, so you'll probably be able to use those on AM3 boards but maybe not AM2+ boards, and who knows if AM3 will work on AM3+ boards? Some stuff is DDR2, some stuff is DDR3, and certain chipsets have enough PCIe lanes for x16/x16 but others don't, and most of the chipsets are available on multiple sockets (i.e. a 770 chipset board might be AM2+ or AM3)

Sorta like the weird LGA-775 compatibility, where the socket was around for so long and underwent so many changes that compatibility is really confusing. Some takes DDR2, some takes DDR3. Same physical socket for Netburst and Conroe, but plenty of compatibility issues.

Whereas LGA-1156 and LGA-1366 have very simple compatibility. Every LGA-1156 CPU works in LGA-1156 motherboards and uses DDR3.

I think the minor change in name is what's confusing people. I don't know exactly why they are still branding SB as i3, i5, and i7, but it's a new architecture. The difference from i7-xxx to i7-2xxx is as major of a difference as that from Pentium to Core or Core 2 to Core i.
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very well put
 
DaFox said:
Not really. There are only 2 unlocked chips. That is the cheaper unlocked one without HT.

Most overclockers will probably be getting that one.
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Bingo. Be nice to have HT and the extra 2MB of cache, but not +$100 nice.
 
Aside from the assumed price points, is there any benefit to going 2500k over 2600k? I'll be building my first new rig in, oh, nine years. The extra ~$100 is NOT an issue in light of that fact. I've read up on the SB but can't find a reason to go 2500k other than price.
 
Triple B said:
Aside from the assumed price points, is there any benefit to going 2500k over 2600k? I'll be building my first new rig in, oh, nine years. The extra ~$100 is NOT an issue in light of that fact. I've read up on the SB but can't find a reason to go 2500k other than price.
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Many people turn hyperthreading off to get higher overclocks in their Nehalem and Westmere processors. Paying 100$ for this feature and turning it off is kinda :rolleyes: :)

You can apply the extra 100$ somewhere else, especially a video card if you game :)
 
Huh... Ok, guess that's a good reason! I'm going to be doing 3D modeling in Maya and Blender with this rig, so I'm wondering if the HT will help with render times more than the OC would.
 
Oooh, thanks! At stock speeds, either chip would blow my mind. I'm coming from a celeron with 512mb of ram =P Guess this proves that purchases truly are situational.
 
BBMW said:
That depends on your definition of obsolete. After the 2011 comes out (in 2011), I doubt you'll see any new 1366 based processor. The same with the 1156 after the 1155 (one wonders why the didn't need that one pin). So from that standpoint, it will be obsolete.

However, from a software perspective, a 1366 (or 1156) platform processor will run any software we're likely to see come out for the wintel or x86 linux platform for several years.
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sorry, thats exactly what i meant. it will be EOL, no new processors coming out, and likely new mobos aswell. as you stated though, from a software perspective, the platforum wont have much trouble running almost anything you can throw at it.
 
audirs said:
sorry, thats exactly what i meant. it will be EOL, no new processors coming out, and likely new mobos aswell. as you stated though, from a software perspective, the platforum wont have much trouble running almost anything you can throw at it.
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You're running a i7-920. You can upgrade to a gufltown hex without having to change mobo's. Thats your upgrade path.
Triple B said:
Aside from the assumed price points, is there any benefit to going 2500k over 2600k? I'll be building my first new rig in, oh, nine years. The extra ~$100 is NOT an issue in light of that fact. I've read up on the SB but can't find a reason to go 2500k other than price.
Click to expand...
As I mentioned, 2MB of L3 ("Last level") cache + hyperthreading. If cost isn't an issue get the hyperthreading chip (or go s1366 and get the gulftown for 6c/12t. ;) )
 
GLSauron said:
You're running a i7-920. You can upgrade to a gufltown hex without having to change mobo's. Thats your upgrade path.
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Gulftown hexes will never go below $700. That isn't an upgrade path. It's a dead end. I feel even worse for people who currently have the hexes; they dropped $1k+ for a dead socket.
 
wabbitseason said:
Gulftown hexes will never go below $700. That isn't an upgrade path. It's a dead end. I feel even worse for people who currently have the hexes; they dropped $1k+ for a dead socket.
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not quiet. You could upgrade to hex core for about ~400 if you're smart about it ;D *nudge* *wink*
 
osrk said:
not quiet. You could upgrade to hex core for about ~400 if you're smart about it ;D *nudge* *wink*
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But the value of a hex depends on the application.

If you're gaming or doing another task that isn't capable of utilizing all six cores, upgrading to a 1366 hex is pointless.

Sandy Bridge has over Nehalem exactly what Nehalem had over Core, and Core had over Netburst - a better architecture with a better IPC.

games will probably do better on a sb quad than a nehalem hex
 
Does anyone know any details about motherboard specifications on the s1155? How many pcie lanes, sata6gb/s, usb 3.0 etc?

Will it use dual channel DDR3? I'm running a s775 right now, and I want to upgrade when SB comes out. I'm thinking of jumping on a DDR3 deal this weekend, but I'm not sure if I should get a triple channel or dual channel. probably get DDR3 1600, which I'm really hoping will be a good enough speed for SB.

edit: did some more searching, and I found my answer.

http://www.anandtech.com/show/3871/the-sandy-bridge-preview-three-wins-in-a-row/3
 
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MisterClean said:
Does anyone know any details about motherboard specifications on the s1155? How many pcie lanes, sata6gb/s, usb 3.0 etc?

Will it use dual channel DDR3? I'm running a s775 right now, and I want to upgrade when SB comes out. I'm thinking of jumping on a DDR3 deal this weekend, but I'm not sure if I should get a triple channel or dual channel. probably get DDR3 1600, which I'm really hoping will be a good enough speed for SB.

edit: did some more searching, and I found my answer.

http://www.anandtech.com/show/3871/the-sandy-bridge-preview-three-wins-in-a-row/3
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A couple of places have some line-up preview of the new motherboards as well, I've seen Asus and Gigabyte lines so far. With no FSB overclocking, even DDR-1333 should be enough.
 
Forceman said:
A couple of places have some line-up preview of the new motherboards as well, I've seen Asus and Gigabyte lines so far. With no FSB overclocking, even DDR-1333 should be enough.
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However small, there is of course some benefit to faster ram (since you can adjust ram multipliers on P67)...
 
I am def gonna jump in and grab a Core i7-980 eventually. I will do a full system upgrade in 2012 at some point. I just want to squeeze more life out of my current rig.
 
i really miss it when AMD and Intel used the same socket. it went to this whole platform BS just to try to make more money.

there is nothing wrong with using AMD also. a $80 CPU at 2.6ghz my not be as fast as an i5 at 2.6ghz but its less then Half the price too. I have had a lot of AMD CPUs over the years because mainly price they have been great! each one has lasted a while. granted i do lite gaming and lots of trans coding.

AMD bulldozer i read some rumors that AMD going to try to sell that CPU as much as Intel sells there CPUs if this is the case i will be buying what ever CPU is better.
 
I feel even worse for people who currently have the hexes; they dropped $1k+ for a dead socket.
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lulz...no intel system < $20,000 will beat a dual OCed hex for at least the next year.
 
Except at games, which won't need the 12c,24t and will just love a 4c/4t SB with a higher IPC and a 5ghz clock.
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Why would someone who only wants to play games buy a hex in the first place
 
nalc said:
But the value of a hex depends on the application.

If you're gaming or doing another task that isn't capable of utilizing all six cores, upgrading to a 1366 hex is pointless.

Sandy Bridge has over Nehalem exactly what Nehalem had over Core, and Core had over Netburst - a better architecture with a better IPC.

games will probably do better on a sb quad than a nehalem hex
Click to expand...


There are various reasons why one would want a hex core but one common one (for home users) is video transcoding. Apart from having a higher IPC, the SB have dedicated circuitry for that. I don't think we have seen any demos for it yet but Intel has said that it would do in seconds what takes minutes on current cpus.
 
I love how video encoding is always touted as the reason to go for tons of cpu cores. Who is doing all of this video encoding? I sure as hell arent. I bet for every video encoder there are 1000 gamers.
 
Nerdydave said:
there is nothing wrong with using AMD also. a $80 CPU at 2.6ghz my not be as fast as an i5 at 2.6ghz but its less then Half the price too.
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Why are you comparing a 2.6GHz AMD chip to a 2.6 GHz i5? The i5 has a hugh clock for clock advantage over any current AMD chip.

Subtract 400 to 600 MHz from the i5 frequency for a fair comparison or look at i3s.

I have had a lot of AMD CPUs over the years because mainly price they have been great! each one has lasted a while. granted i do lite gaming and lots of trans coding.
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I have purchased over 100 AMD CPUs between home, work and friends in the last 10 years and probably 25 Intel chips. For a while there I was buying 100% AMD but since the disaster with Phenom 1 I have had to move on to Intel for more of my purchases. For home I purchased my core2 quad q9550 in November of 2008. At that time AMD had no single processor as fast as the core2 quad. And when this April I purchased an i7 920 system again AMD did not have a single chip that was as fast. They do now with the 1090T but I still only paid $190 for the i7 920 back in April.

AMD bulldozer i read some rumors that AMD going to try to sell that CPU as much as Intel sells there CPUs if this is the case i will be buying what ever CPU is better.
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AMD buldozer is still a long way out. I believe it will be out just before Intel's socket 2011 early next Summer. The big problem with Buldozer is that it will probably still be behind in single threaded performance versus SB although it will be a good multithreader depending on if AMD can clock the 4 module (8 core) chip at 3.4 to 3.8GHz in less than 140W. 2.5GHz models will not cut it.
 
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wabbitseason said:
Gulftown hexes will never go below $700. That isn't an upgrade path. It's a dead end. I feel even worse for people who currently have the hexes; they dropped $1k+ for a dead socket.
Click to expand...

What about expected pricing for Sandy Bridge hex cores in LGA 2011 sockets? Anyone know anything about this?
 
Some are expecting $700 US minimum. I believe it all depends how well the 4 module / 8 threaded Bulldozer will perform compared to 2011 SB and also how well Bulldozer will clock with 8 cores and in a 140W or less socket. If Bulldozer is competitive then there will be price pressure on Intel.
 
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