What is the Highest bandwidth DDR?

davekusa · Jun 9, 2005

What is the hight bandwidth DDR memory out right now?

I have a P4/ abit IS7 with corsair XMS 2-2-2-5 TCCD

Im running 2.5-3-3-5 at 2.8V
Sandra score of 5800.

SteveOCZ · Jun 10, 2005

The ram with the highest PC number has the highest theoretical bandwidth. So pc4800 would be 4800MB/s in single channel with 100% efficiency. Since we know you can overclock ram you can in some cases get pc3200 ram to do pc4000 speeds etc

Sjaak · Jun 10, 2005

Theoretical bandwidth says little, its just what the chips are binned for.

PC3200 should do 3200MB/s, but be glad if it reaches over 2500MB/s. High speeds and low latencies will make for a higher throughput.

The A64 generally scores better due to it's integrated controller.

Eldonko · Jun 10, 2005

SteveOCZ said:
The ram with the highest PC number has the highest theoretical bandwidth. So pc4800 would be 4800MB/s in single channel with 100% efficiency. Since we know you can overclock ram you can in some cases get pc3200 ram to do pc4000 speeds etc

SteveOCZ - What determines bandwidth efficiency? Does it decrease when OCing the RAM and with use of dual channel? For example, at DDR616 my 4200EL is only at 76% efficiency, how is this affecting performance?

flapperhead · Jun 10, 2005

ive seen as much as 10,000+ bw in some of the oc'd rigs over at extreme systems.
theoretical and actual bw are comparable to estimated and actual gas milage.. impairments such as delay ,mmory controller efficiency,cas latency determine how fast memory thruput actually is..

What is the Highest bandwidth DDR?

davekusa

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SteveOCZ

The OCZ guy

Sjaak

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Eldonko

Revolutionary Mule

flapperhead

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