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19151
February 17th, 2015 02:00
RAM speeds impact on website/server
Hi and greets from Finland!
I'm suppose to accuire new hardware, and I'm not sure what's the most efficient way to go.
I have two options at hand: the R900 or R710/R910 Poweredge.
I'm just wondering, how much does RAM speed (not the amount but speed) affect a server that should host a website? The website/s is/are quite heavy and does at least put a toll on the viewers side of performance, but since the R900 supports only 667Mhz RAM, is it really worth to at least double the budget and go for R710/910 that supports 1333Mhz RAM?
Does the RAM speed affect a server that much?
Overall the R900 would have a total of four 2,94Ghz quad-cores and around 100 gigs of RAM, 15k HDD's
The R710/R910 would have about a third less CPU performance and around 50 gigs of RAM, thou it would be 1333Mhz.
What do you folks think?
pcmeiners
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February 17th, 2015 08:00
This is a question involving too many variable. In the past I have seen servers with slower speed ram easily out perform servers with much faster ram, generally it is the reverse.
"The R710/R910 would have about a third less CPU performance and around 50 gigs of RAM, thou it would be 1333Mhz."
CPU speed trumps ram speed generally, especially 33% difference, even considering web servers are primarily read intensive.
Not sure of how much disk space you need, but if it is a reasonable amount I would look into SSD drives for extreme disk speed. If not SSDs, and if you have the resources, raid 10 is pretty fast.
Janne Varjonen
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February 18th, 2015 02:00
Ah, thanks. Since the is a pretty tight budget, I think I'm gonna go with the R900. Thanks for a speedy answer.
pcmeiners
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February 18th, 2015 06:00
The r900 appears to be 5 years old technology so you may want to research this machine. Aside from ram speed and cpu speed, much can change over 5 years as in bus speeds/efficiency, cache speed, chip sets, new added technology ect...that said, the reviews were good and there are many on Ebay
Compare the CPUs..
https://www.cpubenchmark.net/
Janne Varjonen
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February 18th, 2015 10:00
Yes, I'm a pretty frequent visitor in that address. I was a wizkid some 15-20 years ago but at the moment I'm suffering with about anything hardware related. My golden days were when we broke the 200 Mhz barrier in consumer cpu's.
I would love to obtain a R920 fresh from the assembly line, but bugdet wise I could only settle for a lower end R910. But it seems to me that when you don't take into consideration the slower RAM speeds, smaller buffers etc. one could get a maxed out R900 for less money and I would think that a maxed out R900 could beat a half-way R910 - performance wise and for a smaller budget.
The R900 that I'm thinking would cost 330 € (about $385 I think) + 4 pcs qc 2,93Ghz cpu's (about $12 each) and a few SSD HDD's plus ram about 128 G's for $500-600 (= for starters).
All in all the project would take somewhere around 1000-1300 dollars, and I might just get the lowest end R910 around with that amount.
Just wanting to save a "couple" of bucks =)
pcmeiners
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February 18th, 2015 12:00
Understand... makes it so much harder on techs when the resources are limited.