[WildChild]

Being as more and more folks are "converting" over to the 64 bit revolution I thought it may be good to have a specific thread just for that . So here it is.

Any questions regarding the newer 64 bit technology Please post in here.

Laterz, WC

[craig5320]

I don't kno much about the 64-bit offerings. But what does the FX offer over the Athlon64. Where i usually buy my stuff they quote this in the descriptions:

FX 51 offers an average performance increase of 15-20% over the AMD Barton XP3200+ CPU

and

the Athlon 64 offers on average, a 20% performance improvement over the AMD Barton XP3200+ CPU.

and says they both have 1MB Cache. Yet the FX is nearly twice the price. So what's the big deal if they give similar performance gains?

[PeakPerformance]

Well if you read some benchmarks you can see that the FX51 wasthe fastest cpu. Only difference with normal athlon 64 is that it uses dual channel mem which also neEds to be registered. Bcause if the laltest the athlon 64 3400+ is just a tad faster then the fx51.

[Judas]

The athlon 64 bit solutions have built in Memory controllers..... However.. the 64 has only Single Channel... and if i'm right.. the FX has dual channel support... as well the FX is unlocked...

[Vampyromaniac]

I think the regular A64 is also un-locked for lower multipliers only, correct?

[Judas]

never heard that.... could be true.. i've yet to see a 64 bit cpu sold here... let alone an ad..

[WildChild]

Originally posted by craig5320
I don't kno much about the 64-bit offerings. But what does the FX offer over the Athlon64. Where i usually buy my stuff they quote this in the descriptions:



and says they both have 1MB Cache. Yet the FX is nearly twice the price. So what's the big deal if they give similar performance gains?

The main real difference is the memory bandwidth, the amd 64 3400+@ 2.2 ghz is running the same benchmarks as the FX-51 and keeping up with it except in memory bandwidth, the FX-51 has the Dual-Channel.

[WildChild]

Originally posted by Vampyromaniac
I think the regular A64 is also un-locked for lower multipliers only, correct?

I haven't messed with that but I think you are correct with the unlocked lower multi's, the FX chip is unlocked all together.

[FrankenBerrie]

My AMD64 3400+ is locked for lower multipliers!

[WildChild]

Originally posted by FrankenBerrie
My AMD64 3400+ is locked for lower multipliers!

Bummer....Not all are

[snuffy]

Here are the main differences between the Athlon 64 and Athlon FX cpus. Note many are stated above but here is a complete recap.

1) Athlon 64 = socket 754
Athlon FX = socket 940 (soon to inclucde 939)

2) A64 = single channel memory controller
AFX = dual channel memory contoller

3) A64 = only unlocked for lower multipliers
AFX = fully unlocked all multipliers

4) A64 = supports standard DDR400 Dimms
AFX = supports registered DDR400 Dimms only (939 will not require registered dimms)

5) All Athlon FX have 1MB L2 cache
A64 3200+ and 3400+ have 1MB L2 cache
A64 3000+ has 512 L2 cache but has same clock speed as 3200+ (2000 ghz)

6) both supported by the Via K8T800 chipset and Nforce 3 chipset

7) A64 DTR (desktop replacement) mobile cpus are slightly different

3000+ runs are 1800 MHZ with 1MB cache
rest run at the same specs as the desktop cpus'
DOES NOT SUPPORT DDR400 (checking into this as AMD now has changed this on their website)
Does not have integrated heatspeader

Here is AMD specs on the mobile CPUs
http://www.amd.com/us-en/Processors/...118_10220_9486^10249,00.html

8) A64 mobile cpu

runs 2800+,3000+ and 3200+
1.6,1.8 and 2.0 ghz speeds

http://www.amd.com/us-en/Processors/...18_10220_10221^10269,00.html

That should cover all AMD A64 cpus for this week.

[El Kapitano]

My athlon 64 -3200 seems to be locked as well. Plus I think I've got almost all I can out of this rig.

Any idea if the socket 754 is going to be carried on for a while longer or is it a dead duck already a la intels earlier P4.

[WildChild]

I think it will be here for awhile.Though there is rumours flying that the xp chip will be turned into the 754 chip.But nothing to confirm this as of yet.Don't worry your safe for now ElKapitano.

[snuffy]

Socket 754 is staying... for awhile

Athlon XP is said to be not staying in socket A so draw your own conclusions.

Kind of look to Intel for what AMD is going to do for 32 bit cpus.

Talk to you later.

Snuffy

BTW did you guys know that prescott is rumored to have 64 bit extensions that are turned off making it 32 bit. I thought that was interesting.

[dj_stick]

but will the current 754 chipsets (64 bit) support the 754 athlon xp's, or will the AP be migrated to 64 bit?

[dipstick]

Originally posted by FrankenBerrie
My AMD64 3400+ is locked for lower multipliers!

Really? That is very weird as all A64s should be able to take advantage of Cooln'Quiet. Have you tried using that? Never heard of a locked one before..

[PeakPerformance]

Hmm i'm a proud owner of an athlon 64 now for 2weeks. But i tried using that Cool'n'Quiet feature and it is only half working. The cpu speed drops to 800Mhz but my fan keeps spinning at the same speed it allways does 34xx rpm. So i'm missing the quiete feature. Any ideas on getting this fixed.

[Vampyromaniac]

does the fan have a thermal sensor? that's the way cool n' quiet lowers noise, with a temperature-controlled fan

[PeakPerformance]

Well it is the boxed combo so it supposed to have a temp sensor right?

[dipstick]

Originally posted by PeakPerformance
Hmm i'm a proud owner of an athlon 64 now for 2weeks. But i tried using that Cool'n'Quiet feature and it is only half working. The cpu speed drops to 800Mhz but my fan keeps spinning at the same speed it allways does 34xx rpm. So i'm missing the quiete feature. Any ideas on getting this fixed.

Depending on the board, you might have to enable the fan control in the BIOS(On the Asus boards its called Q-Fan Control)
What board are you running it in?

[PeakPerformance]

Nope Q-fan has nothing to do with the Cool'n'Quiet feature. You only need ot turn on Q-fan when you don't have a temp controlled fan.

k8v se dlx user guide
-make sure to install the AMD Cool'n'Quiete driver and application before using this feature

-The AMD Cool'n'Quiet technology feature works only with the AMD heatsink and fan assembly with monitor chip.

-If you purchased a seperate heatsink and fan package, use the AUSU Q-fan Technology feature to automatically adjust the CPU fan speed according to your system loading

[ChoGGi]

one more thing about the fx is it has a 128bit memory controller the regular 64 has a 64bit memory controller

[eggs420]

Originally Posted by PeakPerformance

Hmm i'm a proud owner of an athlon 64 now for 2weeks. But i tried using that Cool'n'Quiet feature and it is only half working. The cpu speed drops to 800Mhz but my fan keeps spinning at the same speed it allways does 34xx rpm. So i'm missing the quiete feature. Any ideas on getting this fixed.

Funny, because my motherboard's bios doesnt have C&Q support yet, but I get variable fan speeds but NOT clocks..Wanna share?

Also, 34xx RPM is the lower limit of the speed. I emailed AMD on retail fan speeds and was told 3000-6000rpm. I havent hit 3000 or 6000 (like 3300, max 5600) itself, so I think they go +/- 10% or something on those figures. If you are running at 3400 RPM, what are your cpu temps at full load? Once the cpu heats up, the fan should adjust itself faster..After putting better thermal compound on my chip, I have yet to see the fan break 5000rpm again. It doesn't get hot enough I guess..

a64's are *rumored* to be rated to 70c without damage, 65c stable. AMD reminded me that the chip DOES contain a temp sensor too, and it will shut down if a 'certain' temp is reached (probably that 70c figure..)

The sun's shining on my case right now warming it a tad, and I've been folding all night/day and I'm at 55c, 3308 cpu fan RPMs. Note though - I cant trust that temp reading, as this board is whacky on its sensors still..waiting for a bios fix. The fan is controlled by another sensor, in the fan itself, so it will adjust itself more accurately than I could based on the readings from my board sensors. Shame we can't plug into that for health monitoring though.

I hope all that makes sense..


OH - If you can't change to a lower multiplier, look for a bios update.

[Counterfe1t]

very nice but is the performance boost better than using a socket 754 board im thinking of buying a new board but now that ive read this article i just have more questions....
should i pick the
K8N Neo2 Platinum
or
K8N neo platinum

[drakesteakn]

Originally Posted by Counterfe1t

very nice but is the performance boost better than using a socket 754 board im thinking of buying a new board but now that ive read this article i just have more questions....
should i pick the
K8N Neo2 Platinum
or
K8N neo platinum

both of those are nice boards. can't go wrong with those.

[yake]

Originally Posted by dj_stick

but will the current 754 chipsets (64 bit) support the 754 athlon xp's, or will the AP be migrated to 64 bit?

The new sucessor of athlon xp and duron processors is the Semprom. I hearded that they have the 754 pins and the 939 pins version.
Some old motherboards (made for Athlon XP or Duron) can support Semprom (754) after an BIOS update.

Semprom is the new high-end solution of AMD. The athlon 64 754 pins is the intermediary processor and the athlon 64 and FX series are the "PRO".

Someone knows what's the difference between athlon 64 939 pins and Opteron??

[El Kapitano]

Originally Posted by yake

The new sucessor of athlon xp and duron processors is the Semprom. I hearded that they have the 754 pins and the 939 pins version.

NOPE, Semprons are socket A and Socket 754 parts.

Originally Posted by yake

Some old motherboards (made for Athlon XP or Duron) can support Semprom (754) after an BIOS update.

Nope, you mean the Socket A Semprons in a Socket A board.

Originally Posted by yake

Semprom is the new high-end solution of AMD. The athlon 64 754 pins is the intermediary processor and the athlon 64 and FX series are the "PRO".

They're the entry and mid level processors, not the high end, that's reserved for the 64 bit parts - AMD64 socket 754 and 939 and the FX (939) however, strictly pricewise the lower priced AMD64 parts are mid level too.

Originally Posted by yake

Someone knows what's the difference between athlon 64 939 pins and Opteron??

The Opteron uses ECC registerd RAM-Oh and as Z pointed out below, the 1xx are single processor, the 2xx are dual configuration processors with two hypertransport links and the 8xx are 8 way ready.

[Zardon]

Depending on the model of opteron they are also dual+ processors.

[Judas]

x40+ (x40-x50) were x is the numbers 1/2/4/8 and the corrasponding numbers are how many cpu's in a single rig...

140 is single cpu
240 is dual


and so on..

[pham]

i heard that your best to use a min. 500watt power supply for the 64 chip , is that true??
ive got a 350watt and think of just changing the motherbord and keeping the tower