A64 benches with 1:1 mem:CPU clock ratio, vs divided ratio?

[Giscardo]

Can someone post some game benchmark numbers like this please?

1. memory at x MHz, LDT@ A MHz, 1:1 divider
2. memory at x MHz, LDT@ B > A MHz, some divider
3. memory at 5:4 or whatever ratio, with highest achievable LDT speed, highest CPU multiplier.
4. memory at highest 1:1 ratio speed, highest CPU multiplier.

with the cpu at relatively similar (within 100Mhz) speeds? Any other configurations you think might be useful too. I'd appreciate this very much, it'll influence my decision on what memory and A64 CPU to get with my new system.

Can you please only reference numbers in this thread (benchmarks), and not just say "such and such is faster". Too much information gets passed around message boards that isn't really true, just assumptions.

I want to overclock to around 2.5Ghz, and want to get the least expensive A64 chip, but don't want to have to use a non 1:1 ratio for mem speed if it means a significant performance hit.

 

[Giscardo]

bump for the night, hoping someone responds.

 

[Bar81]

There is no such thing as running memory 1:1 on an A64, all memory settings are Async.

Frankly, it doesn't make a difference when it comes to mem speed. You can expect a maximum of 1-2% if anything improvement every 40mhz of memory speed so the difference between using a 166 setting versus a 200 setting at say 10x250 is insignificant while the money you'll spend is not. As to actual numbers, I've done my own testing. Do your own research.

 

[Shimmishim]

Originally posted by: Bar81
There is no such thing as running memory 1:1 on an A64, all memory settings are Async.

Frankly, it doesn't make a difference when it comes to mem speed. You can expect a maximum of 1-2% if anything improvement every 40mhz of memory speed so the difference between using a 166 setting versus a 200 setting at say 10x250 is insignificant while the money you'll spend is not. As to actual numbers, I've done my own testing. Do your own research.

hmm.. i'm confused as to why you say there's no running memory 1:1 on A64...

is this because the mem controller is on the chip or some other reason???

 

[Bar81]

It's because the memory speed is arrived at through a divisor of the CPU speed (i.e. /12)

 

[Giscardo]

Originally posted by: Bar81
There is no such thing as running memory 1:1 on an A64, all memory settings are Async.

Frankly, it doesn't make a difference when it comes to mem speed. You can expect a maximum of 1-2% if anything improvement every 40mhz of memory speed so the difference between using a 166 setting versus a 200 setting at say 10x250 is insignificant while the money you'll spend is not. As to actual numbers, I've done my own testing. Do your own research.

Do my own research can mean one of two things:
1. Experiment with hardware and do the benchmarks myself.
2. Find benchmarks on the internet that answer the question.

Can't do 1 since the reason I'm asking is to know what to buy in the first place. Have done, and am still doing #2.

 

[Jeff7181]

Originally posted by: Bar81
There is no such thing as running memory 1:1 on an A64, all memory settings are Async.

Frankly, it doesn't make a difference when it comes to mem speed. You can expect a maximum of 1-2% if anything improvement every 40mhz of memory speed so the difference between using a 166 setting versus a 200 setting at say 10x250 is insignificant while the money you'll spend is not. As to actual numbers, I've done my own testing. Do your own research.

Damn dude... pull the pitchfork out of your ass.