[GravitonSurge]

What's the peformance difference between an A64 regular 2800+ and an A64 Mobile 2800+?

What I mean is, assume these both were the same core but one was mobile and the other wasn't. What would be different in the mobile? Would it run slower, or just cooler? I'm trying to decide if the mobile is worth it (I want to OC as much as I can.) Does the Mobile take a hit compared to the regular in gaming or applications, for example?

[Jess1313]

Originally Posted by GravitonSurge

What's the peformance difference between an A64 regular 2800+ and an A64 Mobile 2800+?

What I mean is, assume these both were the same core but one was mobile and the other wasn't. What would be different in the mobile? Would it run slower, or just cooler? I'm trying to decide if the mobile is worth it (I want to OC as much as I can.) Does the Mobile take a hit compared to the regular in gaming or applications, for example?

well the desktop CPU you linked to is a Newcastle(512Kb L2)(9x200=1.8gig), and the Mobile is a Clawhammer(1M L2)(8x200=1.6gig) (the desktop has a default vcore of 1.5, and the mobile of 1.4. the mobile also lacks an IHS,[intagrated heat spreader]), so the mobile is lower clock with more cache, and the desktop is higher clock w/ less cache(although this is not because they are mobile/desktop, its because they are Clawhammer/Newcastle) i wouldnt recommend the 2800 mobile clawhammer, because its multi(8x) is much to low, to get 2.4gigs you would need 300HTT(8x300=2.4gig), which may not be achivable by all motherboards. Aswell, mobiles are not supported by all motherboards.

For the most part mobiles dont clock much(if any) better than desktops of equial specs.

[GravitonSurge]

I see. I was also wondering about the multiplier since I was thinking 300 is a lot. I was planning on getting an XP-90 heatsink and a Delta 92mm fan for it. Do you think I could get 2.4 with that setup? On the regular, I mean.

Also I've read about CO and CG chips.. what's the difference and how do you tell?

[Jess1313]

Originally Posted by GravitonSurge

I see. I was also wondering about the multiplier since I was thinking 300 is a lot. I was planning on getting an XP-90 heatsink and a Delta 92mm fan for it. Do you think I could get 2.4 with that setup? On the regular, I mean.

Also I've read about CO and CG chips.. what's the difference and how do you tell?

yes as a said i wouldnt recommend any a64 w/ an 8x multi. I think that HSF should do great, as should the SLK-948u(people have seem 2.5+ on it)

CO's are earlier Core revisions, that only support 1t mem timing, and usually dont overclock good, and CG's are newer core revisions, and usually have more consistant, higher OC's....

as for telling them apart, look the link you gave for the 2800+ mobile, look are the "Manufacurs SKU"(alot of times refered to as item #/part #), see the last 2 letters are AR, this means that it is a Clawhammer, CG....

the rest are as follow(list of the last 2 letter)

Originally Posted by hitechjb1

AP = ClawHammer 754 C0
AR = ClawHammer 754 CG
AX = NewCastle 754 CG
AW = NewCastle 939 CG
AS = SledgeHammer 939 CG
AK = SledgeHammer 940 C0
AT = SledgeHammer 940 CG

[GravitonSurge]

Sorry, what's 1t mem timing?

[Jess1313]

Originally Posted by GravitonSurge

Sorry, what's 1t mem timing?

1T=CPC on(command per clock on), and 2T= cpc off(command per clock off)

1t is faster clock per clock, and 2t usualy results in a higher mem OC.

In a64, w/ many using 2x512 mem modules, it seems that 1t mem timings reduces the max of the RAM, for exaple some using PC4400 cant get above 230mhz w/ 1t but dropping to 2t( slight performance loss, usually made up, by OC increas) they are alowed to clock on up, to the rams rated speed.

this is not(usually) experienced w/ 2x256 modules.

[GravitonSurge]

Thanks for all your help, Jess.

I'm wondering about the RAM, though. At 200x9, I would have to go to about 267x9 to get to 2.4ghz, right? That's almost DDR550 ratings. How feasible is that? Would the 2-2-2-5 rated PC3200 be able to get that high? I was reading this article which showed that their OCZ PC3200 Platinum Rev. 2 memory reached almost DDR560 speeds, but that seems like more than I would probably be able to squeeze out. Especially since they used an Intel board, and said that "The only Samsung memory that achieved DDR500 on the MSI Athlon 64 was the OCZ PC3200 Platinum Rev. 2 - none of the other Samsung-base DIMMs could reach this milestone. In addition, the OCZ, which reached DDR557 on the Intel board, could not reach much higher than DDR500 before we got failed boots."

Is there another factor here that I don't know about that would make it easier for me to OC to 2.4?

[Jess1313]

Originally Posted by GravitonSurge

Thanks for all your help, Jess.

I'm wondering about the RAM, though. At 200x9, I would have to go to about 267x9 to get to 2.4ghz, right? That's almost DDR550 ratings. How feasible is that? Would the 2-2-2-5 rated PC3200 be able to get that high? I was reading this article which showed that their OCZ PC3200 Platinum Rev. 2 memory reached almost DDR560 speeds, but that seems like more than I would probably be able to squeeze out. Especially since they used an Intel board, and said that "The only Samsung memory that achieved DDR500 on the MSI Athlon 64 was the OCZ PC3200 Platinum Rev. 2 - none of the other Samsung-base DIMMs could reach this milestone. In addition, the OCZ, which reached DDR557 on the Intel board, could not reach much higher than DDR500 before we got failed boots."

Is there another factor here that I don't know about that would make it easier for me to OC to 2.4?

well, A64 has very flexable mem devisors, so you can ruin your ram slower that your HTT if necessary. But OCZ you linked to should be good, and so should the new PQI PC3200 2-2-2-5 ram, there a big thread about it in the mem section here.....

also you need to get a mobo w/ PCI/AGP locks, for this stay away from boards w/ Via K8T800 *NON PRO's*, SIS chipsets, and some* eirly NF3-150 mobo's......

EDIT: and the MSI Neo Plat

[GravitonSurge]

I was looking at the Chaintech VNF3. Good motherboard in your opinion?

[Jess1313]

Originally Posted by GravitonSurge

I was looking at the Chaintech VNF3. Good motherboard in your opinion?

not the best but good for its prise, i mean, 75 bucks, thats awsome

[GravitonSurge]

I can't find an AX for the 2800+.

All I can find is a 3000+ AXBOX, which is $175. Is it worth it, or should I wait for available 2800+'s?

[Jess1313]

Originally Posted by GravitonSurge

I can't find an AX for the 2800+.

All I can find is a 3000+ AXBOX, which is $175. Is it worth it, or should I wait for available 2800+'s?

its up to you, but i would be my preference to get the 3000, so i would have some insurance on my multi(10x), just incase i couldnt just up HTT mhz...

[GravitonSurge]

Are the 2800+ and 3000+ essentially the same chip? Do they have the same HTT overclockability, but the 3000 has a 10x instead of the 9x? I don't want to get stuck with something that wont OC well..

[Jess1313]

Originally Posted by GravitonSurge

Are the 2800+ and 3000+ essentially the same chip? Do they have the same HTT overclockability, but the 3000 has a 10x instead of the 9x? I don't want to get stuck with something that wont OC well..

alot of 2800's oc well, but i have seen the ocationally that didnt(although i believe that they were CO 2800, which are acually half cashe disabled clawhammer CO's) but the 3000 has a higher stock multi, so this could give insuance if your mobo wouldnt do high HTT

min HTT for 2.4gig w/ 2800 NC=267

min HTT for 2.4gig w/ 3000 NC=240

and A64's are all multi unlocked down, so if you go a 3000, and wantd to us a 9, or and 8, you could