AMD Justifies Use of Large L3 Cache on Phenom II, Opteron

[newtekie1]

The latency on good DDR2-800 RAM is the same as that on good DDR-400. DDR2-800@4-4-4-12 is the same latency time as DDR-400@2-2-2-6, those are actually pretty damn good latenncies for DDR. Even if you look at some of the best DDR, you can find DDR-500 with latencies of 3-3-2-8, and you can find DDR2-533 with 3-3-3-8, or even DDR2-1066 with 5-5-5-15, which actually has better latencies. People see the higher timings of DDR2 and 3, and don't take into consideration the higher clock speeds.

 

[Melvis]

all these parts are unlocked

I also have a old skt A system here at home, my GF uses it at the moment, its been a great old system, but i had to overclock the cpu for it to run stable =/

I didnt see much if any performance gain with DDR2 over DDR so thats why i kept with my old machine, and far as i can tell the faster the ram is the more you can overclock ya cpu? thats all i can tell that makes it worth wile...o and also its super cheap.

Id love to do up a skt A beast with a 3200+ and good ram and a 3850, it be sweet

I would of like to have seen AMD put alot of L2 cache on there new CPU's instead of L3 as my bro also says its just for show, but maybe not? it helped out C2D alot....

 

[eidairaman1]

The latency on good DDR2-800 RAM is the same as that on good DDR-400. DDR2-800@4-4-4-12 is the same latency time as DDR-400@2-2-2-6, those are actually pretty damn good latenncies for DDR. Even if you look at some of the best DDR, you can find DDR-500 with latencies of 3-3-2-8, and you can find DDR2-533 with 3-3-3-8, or even DDR2-1066 with 5-5-5-15, which actually has better latencies. People see the higher timings of DDR2 and 3, and don't take into consideration the higher clock speeds.

usually takes higher clock speed to get things done in DDR2/3 vs DDR, it takes 800 MTS DDR2/3 to get the same stuff done that DDR does at 400 MTS, Double Clock speed, thats just like how Rambus was at the time, imagine 800MTS DDR vs 800MTS DDR2/3, the DDR would clobber DDR2/3, Im pretty sure if they just shrunk the DDR1 Process to say 80nm it would impact DDR2/3 sales if DDR1 was still produced. DDR1 Maximum Speed was PC4800 (600MTS). To me they are just milking DDR technically now as there isnt much benefit like there was when PC1600 came about.

 

[newtekie1]

usually takes higher clock speed to get things done in DDR2/3 vs DDR, it takes 800 MTS DDR2/3 to get the same stuff done that DDR does at 400 MTS, Double Clock speed, thats just like how Rambus was at the time, imagine 800MTS DDR vs 800MTS DDR2/3, the DDR would clobber DDR2/3, Im pretty sure if they just shrunk the DDR1 Process to say 80nm it would impact DDR2/3 sales if DDR1 was still produced. DDR1 Maximum Speed was PC4800 (600MTS). To me they are just milking DDR technically now as there isnt much benefit like there was when PC1600 came about.

The higher clock speeds allow for more bandwidth, which was something that the old FSB system that Intel continued to use needed. The few Intel 775 boards that had DDR support, performed like crap with DDR compared to DDR2. It isn't about getting things done, the modern Intel processors needed more bandwidth, improving latency wasn't a high priority.