4400+ vs 4800+

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Phixzet

Limp Gawd
Joined
Nov 9, 2005
Messages
196
Hey folks.

Is it worth the extra $300 for a 4800+?

I'm planning on getting some good memory (Corsair TWINX2048-3500LLPRO 2GB Kit)... And debating whether to spend the extra $300 on additional memory (I would like to make the PC last me, as-is, for 3 years) or on the additionall clock speed.

I'm figuring with the great OC results posted - that I can get 4800+ performance out of a 4400+ with the right settings and adequte cooling.

But should I be concerned about being aggresive - and possibly causing problems with PCIe boards... whether it be RAID or sound card?
 
Actually you're better off with the 4400+ and then just overclock it the 200mhz.
Even a dud 4400 will overclock the 200Mhz. Mine did no problem(except a power issue I ran into with my PSU)
 
A 4800 is very _not_ worth it. A 4400, or even a 3800, are practically guaranteed to at LEAST hit 4800+ speed, provided you have half decent RAM and a motherboard that can OC.
 
Well, the 4400+ is the cheapest X2 with 2x1mb cache. 200mhz is not worth $300 though as noted. If you want the most bang for your buck, find an Opteron 165 which also has 2x1mb cache. 1.8Ghz stock that runs 2.4Ghz easy (mine does 2.6Ghz with hardly any voltage increase).
 
kirbyrj said:
Well, the 4400+ is the cheapest X2 with 2x1mb cache. 200mhz is not worth $300 though as noted. If you want the most bang for your buck, find an Opteron 165 which also has 2x1mb cache. 1.8Ghz stock that runs 2.4Ghz easy (mine does 2.6Ghz with hardly any voltage increase).
Click to expand...

Cheapest X2 yes.
Though he could look into a Opteron Dual core.

The 4400 is a nice choice because you can pretty much hit 4800+ speeds no matter how bad of an overclocking motherboard or ram you buy.
 
NKDietrich said:
A 4800 is very _not_ worth it. A 4400, or even a 3800, are practically guaranteed to at LEAST hit 4800+ speed, provided you have half decent RAM and a motherboard that can OC.
Click to expand...
there are no guarantees, practical or literal...
 
Thanks guys. :)

I haven't been paying much attention to this particular forum until today - as I had thought the 4800+ was where it was at, and have been spending time investigating such things as disk drives, MB's, etc... (Planning on getting a A8N32-SLI, using one of the 16x for an 8x SATA board)

I'm seeing a lot of mention on the dual core opterons... I know that they have the same L2... But surely the architecture of a X2 benefits the desktop user more than an opertron?

Finding a Socket 940 board with two 16x PCIe slots in it does not appear to be easy?

I'm starting to like the idea of buying a $497 processor (4400+) instead of a $787 processor. That mekes my $599 RAID card (Areca 1220) much more easy to swallow.
 
Phixzet said:
Thanks guys. :)

I haven't been paying much attention to this particular forum until today - as I had thought the 4800+ was where it was at, and have been spending time investigating such things as disk drives, MB's, etc... (Planning on getting a A8N32-SLI, using one of the 16x for an 8x SATA board)

I'm seeing a lot of mention on the dual core opterons... I know that they have the same L2... But surely the architecture of a X2 benefits the desktop user more than an opertron?

Finding a Socket 940 board with two 16x PCIe slots in it does not appear to be easy?

I'm starting to like the idea of buying a $497 processor (4400+) instead of a $787 processor. That mekes my $599 RAID card (Areca 1220) much more easy to swallow.
Click to expand...
the 1xx series dual core opterons are not 940.
 
The reason people have been referring to the Opterons in this post is because the Opteron they are referring to are 939pin, and are the EXACT same core as the 4800's. There is no architectural difference whatsoever. The 939Pin Dual Core Opterons (165/1.8ghz,170/2.0ghz,175/2.2ghz,180/2.4ghz) under go a more strict testing process than the X2's. They also come stock at 1.35v. I havnt seen a DC Opteron not hit 2.6ghz yet.
 
My 4400+ gets barely to 2.4GHz, and that's it. Extra voltage doesn't help.

Although odds are that a 4400+ will hit 4800+ speeds, there is always the chance that one could loose the "overclocking lottery" and get a dud.
 
mike0219116 said:
My 4400+ gets barely to 2.4GHz, and that's it. Extra voltage doesn't help.

Although odds are that a 4400+ will hit 4800+ speeds, there is always the chance that one could loose the "overclocking lottery" and get a dud.
Click to expand...
did you lower your HTT ratio?
 
ShiShKaBoB said:
The reason people have been referring to the Opterons in this post is because the Opteron they are referring to are 939pin, and are the EXACT same core as the 4800's. There is no architectural difference whatsoever. The 939Pin Dual Core Opterons (165/1.8ghz,170/2.0ghz,175/2.2ghz,180/2.4ghz) under go a more strict testing process than the X2's. They also come stock at 1.35v. I havnt seen a DC Opteron not hit 2.6ghz yet.
Click to expand...

Ok thanks - forgive the newbie questions here... I haven't put together a PC in 3.5 years so I think some things have changed.

1) The Opteron 175 is 100% identical to a 4400+ Is it purely just different "packaging" (the box) or do they actually have different part #'s, CPU id's, etc.. and just the core and memory is 100% identical?

2) If I were to OC a 4400+ - what precisely am I doing different than if I bought a 4800+? Use to be the CPU's had locked multipliers on the CPU - and I never wanted to deal with unlocking my 1900+...

When putting in a 4800+, does the BIOS ID the chip and then set up the correct settings, and all I am doing is taking my 4400+ and tweaking the various BIOS settings to get the same performance as a 4800+?

I guess I'm wondering what AMD does differently when they produce a 4800+ versus a 4400+, and how I am "fooling" my MB to really run at 4800+ type levels?

Thanks again :)
 
The opterons have different part #'s, obviously to differentiate skus. Afaik, they all come from the same wafer, core design is same, just the opti's passed a higher testing standard (?).

The higher cpu multis are locked, but lower multis aren't (165 @ 1.8ghz = 200mhz x 9 or 4400x2 @ 2.2ghz = 200mhz x 11)

You would be oveclocking the cpu from 2.2ghz (4400+) to 2.4ghz (4800+) which is basically setting the htt to 218mhz, from the stock 200mhz, with 11x multi on the 4400+

For a more detailed explanation on oc'ing...check out the guide from eclipse.
 
if your planning on OCing, I think the 4400X2 would be the best bet, I heard they OC really well.
 
Phixzet said:
I guess I'm wondering what AMD does differently when they produce a 4800+ versus a 4400+, and how I am "fooling" my MB to really run at 4800+ type levels?
Click to expand...
The only difference is where they chose to lock the multiplier at. The 4400+'s multi is locked at 11~(11x200=2.2ghz), the 4800+'s multi is locked at 12~(12x200=2.4ghz). That is the only difference.

You are not fooling your motherboard, you are simply overclocking your CPU. You do that my increasing the mhz of your motherboard's bus lane(HTT). Your telling the motherboard to speed up how fast the CPU is cycling, so the CPU speeds up(overclocks), which in turn uses alittle bit more energy(law of physics). When the overclocked CPU does not have enough energy to sustain it's mhz frequency(1 megahert = 1,000,000 cycles in 1 second~ 1ghz = 1 billion cycles in 1 second) most mobo manufactures have an option in the BIOS(Basic Input/ Output Settings) to increase the amount of volts(energy) to your CPU. By allowing you BIOS(motherboard) to provide a bit more voltage to your CPU, your CPU may be able to sustain it's overclocked state in the most demanding enviroment (full CPU load~prime95).

It may very well be that AMD 4400+'s and 4800+'s are produced on the same wafer and some are chosen to be locked at 11x, and some are chosen to be locked at 12x, and some still are chosen to be tested at Opteron standards and are branded as Opteron having passed all Opteron standard testing.
 
skeeder said:
if your planning on OCing, I think the 4400X2 would be the best bet, I heard they OC really well.
Click to expand...

Not as well as the opterons on average...but usually to 2.5-2.6
 
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