Originally posted by: dullard
Originally posted by: AmdInside
AMD Athlon64 will be faster on normal everyday tasks with the same chipset because it will do away with registered/buffered memory requirements.
AMD Forever
I'm not saying you are wrong, but can you provide one link of actual benchmarks that getting rid of ECC will help performance. I heard that over and over again in rumors that were years old based on years old computers - but never one link of data and of course nothing with any current technology. So I tested a memory intense program on my work computer (dual 1.7 GHz Dell Precision 530) and saw absolutely no difference in speed (testing PC800 RDRAM with PC800 ECC RDRAM). But that is just one test on one program on one computer. So is there any current data that backs up your statement?
He didn't say ECC versus non-ECC. He said Registered/Buffered, as in Registered versus Unbuffered.
There shouldn't be any kind of speed difference with ECC because the Error Correcting Chip doesn't kick in unless there's a problem (which pretty much means THERE'S A PROBLEM!) What registered does is delay data by one clock cycle, so by it's very NATURE it's going to slow down a PC.
The problem I find today is that most registered RAM I find, is also ECC and most ECC, unless it's RAMBUS, is also registered. This didn't used to be such a common practice, but I guess the memory manufacturers are wanting less part numbers and figure "if the customer wants fault tolerance, he must not care about speed" and go ahead and go with the beaucoup fault tolerance solution.
The Athlon-64 won't require either ECC or registered. Also, the Athlon-64 won't require 6-layer MLB's either. This should make Athlon-64 motherboards and complete systems cheaper. Sure, the built in memory controller will make the chip cost more, but I think in the long run we'll see a good value and a pretty quick system compared to the Pentium 4 (clock for clock, of course.)