#48 - Question/Answer: DDR2 vs. DDR3
May 20th, 2010 | by computermemory |3DGAMEMAN asked:
Q. Is DDR3 memory faster than DDR2 memory? A. Not really, it’s a memory bandwidth vs. memory latency debate! Watch the video to find out more… … computer memory timing latency bandwidth
permanent computer memory
25 Responses to “#48 - Question/Answer: DDR2 vs. DDR3”
By KlassiKX2 on May 22, 2010 | Reply
I got 4GB Crucial Ballistix DDR3
By grautsvulst88 on May 24, 2010 | Reply
i saving for core 7i system with DDR3 3x 2gb memory ^^
By undeadshooter on May 27, 2010 | Reply
Ok thnx, im new to ddr3 tech, but that should be pretty simple to do with the specific mobo im getting, a bit of patience goes a long way
By Atheismrulez on May 30, 2010 | Reply
Yes, those are very good timings. But remember that most RAM modules come set by default to 1066MHz with 9-9-9-24 timings, so you need to set it manually to the values specified by Kingston—1.65v, 1333MHz, 7-7-7-21 timings.
By undeadshooter on May 30, 2010 | Reply
just a quick question Atheismrulez
is CL7 a good timing for 1333mhz DDR3? ive seen some OCZ Reaper ones at CL6 but they were out of stock at the time i could’ve had them ordered so i got a couple of Kingston HyperX kits for the rig im building
By 1981z28camaro on May 31, 2010 | Reply
ok, thanx for replying
By Dra60oN on May 31, 2010 | Reply
No u can’t it’s only DDR3
By 1981z28camaro on May 31, 2010 | Reply
if your going to build a Core i7 920 system, is it retarded to go with DDR2? lol
I’m not even sure if you can use DDR2 with Core i7
thought I’d ask
Would it be better to just go with DDR2 1066Mhz ram, and get a crazy low latency set like CL5?
I’m going friggin insane trying to come to a decision!! also, would it prevent you from OC’ing your CPU alot, if you get DDR2?
Thanks!
By Atheismrulez on Jun 2, 2010 | Reply
Yes, that is correct.
By TAJNI2929 on Jun 4, 2010 | Reply
ok. so it is overclocked from the start becorse the manufacturer says that this ram can run at 8-8-8-20.
awesome thanks
By Atheismrulez on Jun 5, 2010 | Reply
That just means that your RAM came over-clocked standard. Anything over 1333MHz and 9-9-9-24 timings is over-clocking. And BTW, the calculations are irrelevant most of the time. Standard timings for DDR3 1333MHz RAM are 9-9-9-24.
You need a voltage of 1.65 to reach 1600MHz with 8-8-8-24 timings and the same for 2000MHz with 9-9-9-24 timings. The standard voltage for DDR3 RAM is 1.5v.
By TAJNI2929 on Jun 6, 2010 | Reply
how can it be that you can OC an 8-8-8-24 to an 8-8-8-20.
my ram is it standard that timing.
i dont understand the (20) (the tRas)
i thoght the tras was calculated 8+8+8=24
why can it whan be that my ram is 8+8+8=20.
By donkeyboy2k7 on Jun 7, 2010 | Reply
personally i would get 4GB DDR2 with 1066MHz (corsair) its cheap and good xD
By AmH032uTuBe on Jun 10, 2010 | Reply
actually 3DGAMEMAN, the last thing you said, well some motherboards have slots for DDR2 and other slots for DDR3 on the same motherboard, I saw Foxconn did one.
By alphawolf00774 on Jun 10, 2010 | Reply
this was a year ago guys shove it
By Ezekielpurger on Jun 11, 2010 | Reply
yeah they’re about the same but it’ll become the standard for memory soon enough
By kidowner on Jun 13, 2010 | Reply
whatever… im not an overclocker anyway ^^
By Atheismrulez on Jun 14, 2010 | Reply
I am calm. What are you talking about? Regardless, you said that 7-7-7-18 is the latest. For now, the latest is 6-6-6-20 or 6-6-6-18. Also, RAM running at these latencies are typically very over-clockable, so you’ll be able to get about 1500MHz out of them if you leave it at 6-6-6-6-20.
By kidowner on Jun 14, 2010 | Reply
ok.. calm down man, im just a newbie in these things, i said that 7-7-7-15 was the latest coz in the shops thats the lowest i could find to buy. i will buy ones from corsair
By Atheismrulez on Jun 17, 2010 | Reply
Looks like you’ve been living under a rock. Lowest latencies are 6-6-6-18. Crucial Ballstix, OCZ Reaper, and Crucial Tracer all come with DDR3 1333MHz at 6-6-6-18 latencies. Also, you can overclock them to get 6-5-5-15 at 1333MHz but to 1450MHz @ 6-6-5-20. Also, they’re relatively cheap at $65-70.
Again, latency is no longer an issue. These will leave 1066MHz DDR2 RAM in the dust.
By kidowner on Jun 18, 2010 | Reply
the DDR3 the lowest latencies is 7-7-7-18 atm
By Atheismrulez on Jun 21, 2010 | Reply
DDR3 obviously. His arguments for high latencies are unfounded. Only the cheapest DDR3 has high latencies (9-9-9-24). It can be had in low latencies (6-6-6-18), which is only somewhat slower than the max. latencies in DDR2 1066 (5-5-5-15). The big benefit is that it runs at 267MHz faster and is more over-clockable.
By Atheismrulez on Jun 22, 2010 | Reply
At 6-6-6-18, it’s the second fastest RAM you can get. Latency isn’t an issue; it’s almost the same as the max. you can get for DDR2 1066MHz, which is 5-5-5-15.
Also, the 4GB kit of the RAM I mentioned only costs $65.
By Atheismrulez on Jun 25, 2010 | Reply
Strongly disagree with the poster. DDR3 can be had in low latencies, too. And what you fail to mention is that DD3 is, due to it’s low voltages and high clock speed, is great for over-clocking, whether overclocking the RAM itself, or getting lower timings. Cost is no longer a factor, even in high end DDR3 modules.
Here is what I’m gonna buy:
4GB (2×2) G.Skill DDR3 RAM with 7-7-7-18 latencies. It’s also very overclockable. Timings can go down to 6-6-6-18.
By rish420chronic on Jun 27, 2010 | Reply
ddr2, ddr3 is mostly just for enthusiasts