A64 OCs (Air) Poll

[Lightingguy]

2650 on air w/stock cooler. Reasonable temps and nearly silent. Week 47 3200+ 90nm. Will run limited benches at 2700, but not fully stable. Stable at 2650 since early January.

 

[Duvie]

Originally posted by: Insomniak

Originally posted by: Duvie
Clock for the clock the sempron is a beast...just look past those damn pr rating BS....a 2.5ghz sempron appears to run close to a 2.5ghz A64 in cpu intensive apps...the only plavce it may lose and lose only slightly will be in apps that can take advanatge of 512 or even 1mb of L2 cache and the 3-5% dual channle can give in just the right apps....

Well it should be - all it is is Athlon XP renamed.

Actually I believe you are wrong!!! That may be the case for all semprons for the socket A type but the sckt 754 ones are actually more similar to the newcastle core I believe with perhaps the 64bit disabled.....Otherwise my sons 2200+ barton would be similar to my 3000+ (1.8ghz) winchester if I went on that knowledge...look at the benches of the 2.5ghz sempron....It appears to be on par with A64s in a lot of the benches and I knwo the Athl;on xps are not on par with the A64s in most benches...so it can't be just that simple....

Now I had a sempron 2400+ for a brief moment and in that case it was a rebadged socket a tbred type and performed very similar to a tbred of equal speed (which was a 2000+ and 1.67ghz)....I do think the other semprons start using the cores closer to the newcastle....

Somebody else jump in here and help me...cause that reviewed showed the 2.5ghz sempron doing very well and that would mean say a barton that could oc well with the 512kb of l2 cache would be as good as a 3800+ if it could reach 2.4ghz...that is not right...

I do think since the sempron is sckt 754 it has the on die memory controller which was a plus....it has the 800 HTT which is higher then any xp chip....may hve the sse2 extensions as well....I though it was basically a newcastle core with half the l2 and maybe the 64bit disabled....




Update: qouted from xbits...

The main distinguishing trait of the new Semprons for Socket 754 is that they are all based on the new core, called Palermo. The Palermo is a derivative from the Winchester core, with a reduced L2 cache and disabled AMD64 technology. That is, the new Sempron 2600+, 2800+ and 3000+ for Socket 754 are manufactured with 90nm tech process, but are based on the stepping D0 core, so they don?t yet support the SSE3 instruction set.

---meaning they do have the other sse2 sets----

The Sempron 3100+ model, which has been marketed for long already, is also being transferred to the Palermo core, but the older, 130nm samples are still more common in shops.

---not the same core...not an athlon xp------

Quite reasonably AMD didn?t reduce the frequency of the new Sempron 2600+, 2800+ and 3000+ too much, which would have made them perform slower than the Sempron for Socket A of the same ratings. So they dropped the performance not only by reducing the clock rate, but also by truncating the L2 cache. That is, some of the new Sempron models have a smaller L2 cache (128KB, to be exact) than the Sempron 3100+ has (i.e. 256KB).

----The 2600+sckt 754 sempron is 1.6ghz which is actually lower then the 2400+ sempron in clock speed so this is not the same core as obvious the 2600+ is outperforming the sempron 2400+ socket a chip.------

The following table lists the characteristics of the old and new Sempron processors for Socket 754. All processors of that type available today are listed:

Thus, Sempron processors for Socket 754 work at lower frequencies and have less L2 cache memory than the more expensive Athlon 64 models. The Semprons don?t also support the 64-bit extensions, but do support the NX bit.



the 2600+ is 90nm core like the winchesters (palermo is a derivative of the winchester core) but at 400mhz slower clock then the single channel sckt 754 newcaste, half the cache, obviously single channel memory controller (by the sckt 754), and is only 400+ lower in pr rating.....It appears to be about equal if not a touch better then the newcastle (except minus the 64bit code in 64 bit apps) since it loses 400mhz and half the cache yet it has a pr rating only 400 lower. Now with the winchester it is 200mhz lower then the winnie, half the l2 cache and not dual channel and it is 400+ lower in rating...this makes more sense....

 

[Insomniak]

Originally posted by: Duvie

Originally posted by: Insomniak

Originally posted by: Duvie
Clock for the clock the sempron is a beast...just look past those damn pr rating BS....a 2.5ghz sempron appears to run close to a 2.5ghz A64 in cpu intensive apps...the only plavce it may lose and lose only slightly will be in apps that can take advanatge of 512 or even 1mb of L2 cache and the 3-5% dual channle can give in just the right apps....

Well it should be - all it is is Athlon XP renamed.

Actually I believe you are wrong!!! That may be the case for all semprons for the socket A type but the sckt 754 ones are actually more similar to the newcastle core I believe with perhaps the 64bit disabled.....Otherwise my sons 2200+ barton would be similar to my 3000+ (1.8ghz) winchester if I went on that knowledge...look at the benches of the 2.5ghz sempron....It appears to be on par with A64s in a lot of the benches and I knwo the Athl;on xps are not on par with the A64s in most benches...so it can't be just that simple....

Now I had a sempron 2400+ for a brief moment and in that case it was a rebadged socket a tbred type and performed very similar to a tbred of equal speed (which was a 2000+ and 1.67ghz)....I do think the other semprons start using the cores closer to the newcastle....

Somebody else jump in here and help me...cause that reviewed showed the 2.5ghz sempron doing very well and that would mean say a barton that could oc well with the 512kb of l2 cache would be as good as a 3800+ if it could reach 2.4ghz...that is not right...

I do think since the sempron is sckt 754 it has the on die memory controller which was a plus....it has the 800 HTT which is higher then any xp chip....may hve the sse2 extensions as well....I though it was basically a newcastle core with half the l2 and maybe the 64bit disabled....


Update: qouted from xbits...

The main distinguishing trait of the new Semprons for Socket 754 is that they are all based on the new core, called Palermo. The Palermo is a derivative from the Winchester core, with a reduced L2 cache and disabled AMD64 technology. That is, the new Sempron 2600+, 2800+ and 3000+ for Socket 754 are manufactured with 90nm tech process, but are based on the stepping D0 core, so they don?t yet support the SSE3 instruction set.

The Sempron 3100+ model, which has been marketed for long already, is also being transferred to the Palermo core, but the older, 130nm samples are still more common in shops.

Quite reasonably AMD didn?t reduce the frequency of the new Sempron 2600+, 2800+ and 3000+ too much, which would have made them perform slower than the Sempron for Socket A of the same ratings. So they dropped the performance not only by reducing the clock rate, but also by truncating the L2 cache. That is, some of the new Sempron models have a smaller L2 cache (128KB, to be exact) than the Sempron 3100+ has (i.e. 256KB).

The following table lists the characteristics of the old and new Sempron processors for Socket 754. All processors of that type available today are listed:

Thus, Sempron processors for Socket 754 work at lower frequencies and have less L2 cache memory than the more expensive Athlon 64 models. The Semprons don?t also support the 64-bit extensions, but do support the NX bit.

Correct. I was referring to the Socket As. Sempron S754 is basically a wide derivative of Newcastle/Winchester, from what I understand - less cache, lower clock tolerances, etc.

 

[GuitarDaddy]

I wonder how many of the 2.7+ and 2.8+'s are using water or vapochill? I would have to see 2.8+ on air to believe:Q

Although a few weeks ago I was posting with a guy in Alaska who had his rig sitting on the back porch with the case open @ -10c. I guess this would count as AIR cooling:roll:

 

[Duvie]

Originally posted by: Insomniak

Originally posted by: Duvie

Originally posted by: Insomniak

Originally posted by: Duvie
Clock for the clock the sempron is a beast...just look past those damn pr rating BS....a 2.5ghz sempron appears to run close to a 2.5ghz A64 in cpu intensive apps...the only plavce it may lose and lose only slightly will be in apps that can take advanatge of 512 or even 1mb of L2 cache and the 3-5% dual channle can give in just the right apps....

Well it should be - all it is is Athlon XP renamed.

Actually I believe you are wrong!!! That may be the case for all semprons for the socket A type but the sckt 754 ones are actually more similar to the newcastle core I believe with perhaps the 64bit disabled.....Otherwise my sons 2200+ barton would be similar to my 3000+ (1.8ghz) winchester if I went on that knowledge...look at the benches of the 2.5ghz sempron....It appears to be on par with A64s in a lot of the benches and I knwo the Athl;on xps are not on par with the A64s in most benches...so it can't be just that simple....

Now I had a sempron 2400+ for a brief moment and in that case it was a rebadged socket a tbred type and performed very similar to a tbred of equal speed (which was a 2000+ and 1.67ghz)....I do think the other semprons start using the cores closer to the newcastle....

Somebody else jump in here and help me...cause that reviewed showed the 2.5ghz sempron doing very well and that would mean say a barton that could oc well with the 512kb of l2 cache would be as good as a 3800+ if it could reach 2.4ghz...that is not right...

I do think since the sempron is sckt 754 it has the on die memory controller which was a plus....it has the 800 HTT which is higher then any xp chip....may hve the sse2 extensions as well....I though it was basically a newcastle core with half the l2 and maybe the 64bit disabled....


Update: qouted from xbits...

The main distinguishing trait of the new Semprons for Socket 754 is that they are all based on the new core, called Palermo. The Palermo is a derivative from the Winchester core, with a reduced L2 cache and disabled AMD64 technology. That is, the new Sempron 2600+, 2800+ and 3000+ for Socket 754 are manufactured with 90nm tech process, but are based on the stepping D0 core, so they don?t yet support the SSE3 instruction set.

The Sempron 3100+ model, which has been marketed for long already, is also being transferred to the Palermo core, but the older, 130nm samples are still more common in shops.

Quite reasonably AMD didn?t reduce the frequency of the new Sempron 2600+, 2800+ and 3000+ too much, which would have made them perform slower than the Sempron for Socket A of the same ratings. So they dropped the performance not only by reducing the clock rate, but also by truncating the L2 cache. That is, some of the new Sempron models have a smaller L2 cache (128KB, to be exact) than the Sempron 3100+ has (i.e. 256KB).

The following table lists the characteristics of the old and new Sempron processors for Socket 754. All processors of that type available today are listed:

Thus, Sempron processors for Socket 754 work at lower frequencies and have less L2 cache memory than the more expensive Athlon 64 models. The Semprons don?t also support the 64-bit extensions, but do support the NX bit.

Correct. I was referring to the Socket As. Sempron S754 is basically a wide derivative of Newcastle/Winchester, from what I understand - less cache, lower clock tolerances, etc.

Except I was talking with avalon, who if you had read his thread or seen the 2.5ghz sempron at xbits you would have known we are talking about the sckt 754.....

be more clear next time when you throw vague shite like that out....

 

[Duvie]

Originally posted by: GuitarDaddy
I wonder how many of the 2.7+ and 2.8+'s are using water or vapochill? I would have to see 2.8+ on air to believe:Q

here is a few ppl of late around here who I have seen claim on air 2.7ghz at stock so 2.8ghz doesn't seem unreasonable for just a few votes....

i think they were week 48-49 chips but they did some of the highest default vcore ocing to date...also a more expensive aftermarket beast like the xp-120 is like a poor mans water cooling....

 

[EGBTMagus]

2.2Ghz @ 244FSB on Stock cooling.

AMD64 3000 Winchester.
Corsair 3500 BH5 (2-2-2-11-1T)
MSI K8N Neo2 Plat

Im hoping to get a OCZ Booster and XP-90 soon so I can push it further.

 

[Duvie]

With the BH5 you need to be using bios 1.36-1.37 from all reports...heard it works better with the chips....

remember do not sacrifice clock for ram speed...not worth it...get all the clock you can with low dividers and conservative timinsg ad then work to finding the best divider to run at that HTT with the most aggressive timings...all while staying stable!!!

 

[EGBTMagus]

Well the 1.37 are a bust, im unstable like a mofo with them. Its even locking up in the bios.

 

[Duvie]

1.37 or 1.37mod...I think there was 2 diff ones.....I will find the links for you....

 

[lotus503]

Originally posted by: teutonicknight

Originally posted by: teutonicknight
IDLE: 30c
LOAD: 43c

3200 @ 3.5 GHz

Sorry I meant 2.5

 

[richardrds]

I am at 2.5Ghz, but my mobo is holding me back from 2.6-2.8, not the 3000+ CPU. I am using an Abit AV8 and the AGP lock breaks down when the HTT is higher then 265, so i have to use a 8:2:1 ratio and this limits me to 278 HTT because my GPU gets unstable when the AGP bus gets above 70Mhz.

 

[imported_Slider]

With my 3000+, 2.2ghz on my vnf4ultra and 2x512MB pc3200 corsair value RAM. It's just not really stable at 2250mhz at all. my cpuvoltage is at 1.5, Ram voltage at stock, and ht frequenvy at 4x. Any suggestions at all?

 

[Duvie]

Yeah try running a 3x HTT....at 2250 you are at 9x250 and that is right on the cusp....

bump up the vdimm...make sure right now you use a 133 divider for the time being and cas 2.5,4,4,10....isolate ram...find the cpus limit....

 

[imported_Slider]

Originally posted by: Duvie
Yeah try running a 3x HTT....at 2250 you are at 9x250 and that is right on the cusp....

bump up the vdimm...make sure right now you use a 133 divider for the time being and cas 2.5,4,4,10....isolate ram...find the cpus limit....

I put the vdim to 2.9, and did everything else you said and super_pi still crashes pretty quickly at 2250mhz... Is my board or maybe my ram?

 

[Duvie]

more likely ram...lower it...are you trying to force it to run at 1:1???

 

[imported_Slider]

Nah, it was running at 133mhz with 2.5 4 4 10 timings.

 

[Avalon]

So far the polls seem to indicate that there is a 75% chance you will hit AT LEAST 2.4ghz with your winchester, which is awesome.

 

[Jeff7181]

I put 2.3-2.4 because that's what I'm at... but I'm 98% sure I can go higher if I had better RAM.

 

[Avalon]

Originally posted by: Jeff7181
I put 2.3-2.4 because that's what I'm at... but I'm 98% sure I can go higher if I had better RAM.

Use a divider

 

[Jeff7181]

Originally posted by: Avalon

Originally posted by: Jeff7181
I put 2.3-2.4 because that's what I'm at... but I'm 98% sure I can go higher if I had better RAM.

Use a divider

I've tried... my processor doesn't seem to like my CH-5 memory.

*EDIT* 240x10 @ 5:4 works, 217x11 @ 1:1 works, 280x8 @ 2:1 works, 280x8 @ 3:2 won't POST and I have to reset the CMOS... a hard reboot won't even fix it

 

[Dadofamunky]

Originally posted by: GuitarDaddy
I wonder how many of the 2.7+ and 2.8+'s are using water or vapochill? I would have to see 2.8+ on air to believe:Q

Although a few weeks ago I was posting with a guy in Alaska who had his rig sitting on the back porch with the case open @ -10c. I guess this would count as AIR cooling:roll:

LOL sitting next to his Pabst Blue Ribbon stash

 

[sangyup81]

define stable

i can get 2.55 prime95 stable but for everything except prime95 i can get over 2.6

 

[Duvie]

I would think if it cant complete at least 4 hours of prime95 in most everyones eyes it is unstable...I myslef like to have at least 24 hours and 20 passes of memtest before I stamp it for myself...

 

[thriemus]

Originally posted by: Duvie
I would think if it cant complete at least 4 hours of prime95 in most everyones eyes it is unstable...I myslef like to have at least 24 hours and 20 passes of memtest before I stamp it for myself...

I am of the same opinion with prime, at least 24 hours to stamp it as stable (Best so far is 3 days solid while playing games etc etc) but I disagree with memtest, if I get 10 passes i am happy enough