Is there a real performance difference between DDR400 and DDR2? Are they the same thing?
374838
No they are not same. DDR400 is a DDR I RAM with bus speed support upto 400 MHz. DDR II improves on this and provides higher data transfer rates. DDR II also comes in various speed varients.
866092
Not unless you're gonna be overclocking your computer.\nBut if you're not, get memory with the same specs (at least): DDR2 PC2-3200. Before you do, check to see if you can add memory. If you can add memory, buy memory of the same brand and model (other brands/models are likely to have different timings, causing all sorts of problems).
917566
as long as it's DDR you'll be fine ... even if it's faster DDR like for example PC400 it will still "clock back" to the 266 that your board uses ....
137335
If you want to install RAM into your computer more is better. RAM chips are available in sizes up to 2GB. Size is only one feature of RAM though. Next is RAM speed. RAM that comes in the same size comes in a variety of speeds. RAM speeds are based on MHz. The higher the MHz the faster the RAM. You should also know that if you install two RAM chips on your PC that are of different speeds the computer will run both RAM chips at the speed of the slower chip. \n\nOther considerations are new RAM technologies. There are three types of RAM chips. SDR SDRAM (Single Data Rate Synchronized Data Random Access Memory - Slow RAM), DDR SDRAM (Double Data Rate Synchronized Data Random Access Memory - Medium Speed RAM), and DDR2 SDRAM (Double Data Rate 2 Synchronized Data Rate Ram - High Speed RAM). Dual Channel RAM is also available. Dual Channel RAM is better than non-dual channel RAM however I don't know much about it except that it only works with two exactly identical dual channel RAM chips.\n\nThe big mistake everyone makes when purchasing RAM is not checking the compatibility of the RAM with their motherboard. Certain motherboards can only handle certain types of RAM. Find out what type of motherboard you have then find out how much and how fast the RAM is that it can handle and buy the best you can install on it. Contact the manufacturer of the motherboard you have for such information.\n\nPS: Please select my answer as the best answer. Thank You.
28715
don't do it. slows stuff down. RAM is cheap. if you use multiple sticks, match by size, speed and manufacturer.
73024
The GamePC website has this to say.\nhttp://www.gamepc.com/labs/view_content.asp?id=noconaopteron&page=4&cookie%5Ftest=1\n\n"For those who are wondering, DDR-2 slots are not backwards compatible with DDR."
624823
If you have both sticks inserted on your motherboard.The PC3200 WILL downgrade to pc2700. If you have a CPU that has a maximum FSB(front side bus) of 333MHz than pc3200 would have already been at pc2700. PC3200 is equal to 400MHz and PC2700 333MHz. So if your cpu has a fsb of 333MHZ than you will get actually more performance.But if your cpu has a FSB of 400MHz than you will lose a lot of speed.
880108
You would have to first learn whether or not your motherboard supports the faster RAM.  http://www.crucial.com has a great tool to help you figure it out.
984607
Speed and type of RAM used is dependent on the chipset used to make the mainboard. \n\nIn your case, the answer is "no way". DDR2 didn't exist back then except in a lab.
401908
2 x 184-pin DDR DIMM sockets\n\nSupport up to maximum 2 GB memory (PC manufacturer's maximum memory may differ)\n\nSupports unbuffered PC2700/2100 non-ECC DDR SDRAM memory
756292
4-4-8 is I believe a faster timing for more performance. 3-3-8 I think is alittle more stable but its still fast. You must be talking about DDR2 memory.
688601
with 1GB RAM bf2 is fast enough for me. But it takes longer to load. With 2GB RAM (same PC) it takes less than half the time to load the level. That's the only difference I noticed.
701590
Getting more RAM essentially means that the PC can do more tasks at once so in theory it should go faster, however, unless you're doing power intensive work such as video editing, you probably wont notice a huge difference as 512 is usually fine for most everyday tasks.\nIt will also depend on the rest of your machine, if you've got a slow processor, and a small/full hard disk, then the increase in performance wouldn't be that noticeable anyway.
41149
Your new RAM must be DDR2...Besides, nothing else will fit as DDR2 has 240 pins, DDR has 184 pins and older SDRAM has 168 pins (for desktops anyway...laptops have a different number of pins than desktops, but each type still carries a separate number of pins from the other types).  Use the recommended speed as Dell computers are built only to handle a certain speed and, generally, are not upgradeable much less downgradeable.  Using memory of a different speed can cause your computer not to boot up and could possibly cause damage to the memory and/or motherboard.  Placing them in pairs is not absolutely necessary nor is using identical memory size chips, however, if you do use 2 sticks of identical memory, it gives the added benefit of using Dual-Channel which significantly enhances the performance of your memory and processor and, thus, your whole system.
980370
yeah as long as its ddr. 333 and 400 are the speeds. the ram will only go as fast as your motherboard allows. i have a sd 2700 512mb on a 333mhz board. it wont go 2700 but instead slows down to 333
1060479
The technical answer... DIMM = Dual Inline Memory Module.  DDR = Double Data Rate.  Really, they are independant of each other.  To really confuse you, DDR (and DDR2 for that matter) memory comes on a DIMM.  The DIMM can have different configurations, and as mentioned already... different speeds, different timings, etc etc.  So, the answer is not a simple one.  The best thing to do, as mentioned already, is to check your motherboard manual to figure out what kind of memory will work.  If you bought a "manufactured" PC from a big company, this may not be in your manual.  You may have to go to a memory manufacture's website to figure it out.  See my link in the Sources section below.\n\nThanks,\n\nGraham.
1149249
DDR is the original version which has older songs. Then came along by DDR2 which is the newer version with a different setup and more options plus newer songs!