View Full Version : memory speed question

03-21-05, 06:04 PM
ok my system is a xp3200 with a 400 bus side but im using 1gig of pc2700 memory so mine question if i use pc3200 memory will i notice any speed increased or is it just a wast of money?

03-21-05, 06:26 PM
If you are presently running PC2700-rated ram at PC3200 (400MHz DDR) a new set of PC3200-rated memory might run a little cooler (less stressed) and/or give you tighter timings that would possibly enhance performance. AMD processors tend to perform better overall with tight timings.

But if you are not having heat or performance problems the cost would be hard to justify since you are running at 400MHz already. I would skip this upgrade and save the money for the next major upgrade.

03-21-05, 06:49 PM
i agree. since your ram is already at the speed that your new ram would be at, you are good to go.

03-21-05, 07:02 PM
im not running the pc2700 at 400 its running at 333. thats why i was thing about getting pc3200 so i can run at 400.

03-21-05, 07:51 PM
Sorry, misinterputed the 400 bus side as FSB on the memory.

Yes, if you use some quality PC3200 with tight to moderate timings such as ram rated at 2-2-2-5 or 2.5-3-3-7, you will see some performance improvement, Plus, you will be taking advantage of your XP3200+/400 CPU's rated speed. Your bandwidth will increase and give you an overall speed increase. Your system would probably be noticeably quicker.

Whether it is worth the $140 to $220 for 2x512MB sticks of quality PC3200 ram that would be for you to decide. For most it probably would not be.

Daneel Olivaw
03-21-05, 11:05 PM
I recently shelled out a lot of $$$ for real good memory. Wasn't a big improvement over my previous cheap generic ram, that had cost half the price...

I think with the current available bandwidth of ram you won't notice an improvement. Only in synthetic tests you would, and thats useless. But hey, even though I payed a lot for near nothing, I still love my OCZ!

Depending on your video card, that's probably where you should put your money.

03-22-05, 01:05 AM
The nForce2 chipset loves a 1:1 fsb/mem ratio, if that's what you're using. You're starving your system with PC2700.

03-22-05, 03:45 PM
ok, first and foremost, you are currently UNDERCLOCKING your PC by about 15% by running the memory at 333. Try running it at 400MHz and run memtest. You will then be running your processor at the correct speed. If your existing memory does not safely run with the OC'd memory (stable) then replace it with some nice PC3200 stuff or better.

If you get some nice ram and clock it to 410, 420 or higher and get some nice tight timmings, you will see excellent real word performance gains.

If you up the mem speed to 400 with existing memory, you will see 16.5% performance increase from current CPU speed with your existing RAM!

If you get new ram with tight timmings and clock it to 420MHz or higher, you will see 21.5% increase in clock from current speed or higher depending on what your system will do (each pc is different for OCing abilities). If a 20% higher clock is worth the cost of the new memory, then GET THE NEW MEMORY!!!

To make yourself feel better about buying the new ram, get a buyer for your exisitng memory and use the proceeds to fund your new purchase.

The increase in bandwidth will be noticeable but realistically, you will only see real world performance increases only with a 15% increase in MHz and 20% will DEFINITELY be realized in every application you run!