Question about which Memroy RAM card to use

hi i wanted to ask this question for long time.

i have 2 sets of memory RAM cards and i want to know which is better for my pc.
1. i got 2 x ELPIDA 512MB PC2700U CL2.5.
2. and the other set is 2 x HYNIX pc3200u 256MB DDR 400MHZ CL3.

my pc is AMD ATHLON XP 1100 MHZ

thanks alot for some1 who can finally answer it for me!

well the second set is PC3200 which is faster then 2700, so I'd say that's better.

Well, it's not quite that easy.

The first set has slightly lower latencies, and twice the capacity. Besides, can that vintage Athlon even run the RAM at 400MHz?


Honestly, I'd be tempted to go with the first set. There's trade-offs to each; neither is better than the other at all things. The latency difference is going to be negligible. Two sets of RAM, same speed and capacity, one at CL2.5 and the other at CL3.0, you'd never notice the difference without running a series of benchmarks. No real-world performance advantage there. The second set at 400MHz can move data back and forth to the CPU significantly faster, but only if the CPU supports going that fast. Advantage second set. But there's only 512MB in that second set, so there's only so much you can load into the RAM. Go beyond that, and you're stuck reading data from the hard drive - and that is going to slow things down significantly. Advantage second set, which has twice as much room to store things. Advantage overall? Depends on how you use your computer.

On the other hand, I've never heard of ELPIDA. It could be fine RAM, it could die sooner than desired.

oh, I didn't even notice they were different sizes. In that case yeah, I'd go with the more amount over the potentially slower speed. I don't think the 2.5-3 is that noticeable a difference.

first thing thanks for the really informative reply.

here is the summary of my motherboard and memory card from SIW software maybe it could help u

Property Value
Manufacturer ECS
Model M863
Version 1.0

North Bridge SiS 741GX Revision 03
South Bridge SiS 964 Revision 03

CPU AMD Athlon(tm) XP
Cpu Socket Socket A (462)

System Slots 1 PCI, 1 AGP

Memory Summary
Maximum Capacity 4096 MBytes
Memory Slots 2
Error Correction None

Warning! Accuracy of DMI data cannot be guaranteed

Memory card stats

"Property Value
HAYBEND (ECS M863)
Memory Summary
Maximum Capacity 4096 MBytes
Memory Slots 2
Error Correction None
Memory Timings 3-3-3-6 (CL-RCD-RP-RAS)
Device Locator Slot 1
Manufacturer Elpida
Part Number EBD52UC8AMFA-6B
Serial Number F4EBB983
Capacity 512 MBytes
Memory Type DDR (PC2700)
Speed 166 MHz
Supported Frequencies 133.3 MHz, 166.7 MHz
Memory Timings 2-3-3-6-0 at 133.3 MHz, at 2.5 volts (CL-RCD-RP-RAS-RC)
Memory Timings 2-3-3-7-0 at 166.7 MHz, at 2.5 volts (CL-RCD-RP-RAS-RC)
Data Width 64 bits
EPP SPD Support No
XMP SPD Support No"



well so for making it short after viewing all the advantages each set of memory cards have which one would u use if it was ur PC?

I'd go for whichever one you have more of. If it's 1GB PC2700 vs 512MB PC3200, I'd go with the 1GB PC2700.

thanks alot for all who helped me on this issue i will use the 2700 as the performance with it is better!!

thanks alot guys!!!

Hi,

Second one is suitable for your pc.

Thanks,

1) 0MBs itself. It shares (i.e. steals) system RAM
2) you can change the amount of RAM is steals, but this has virtually no impact on the video performance. an dies the best