What's a good memory performance speed (mb/sec) these days?

I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
motherboard and have been using memtest86+ (v 1.70).

The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
cooler) and I'm getting about 3335 mb/sec for the memory speed on
memtest. What sort of memory performance speeds are typical these
days in mid to high-performance and tweeked systems?

'Comp Guy' wrote:
| I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
| motherboard and have been using memtest86+ (v 1.70).
|
| The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
| cooler) and I'm getting about 3335 mb/sec for the memory speed on
| memtest. What sort of memory performance speeds are typical these
| days in mid to high-performance and tweeked systems?
_____

The memory bandwidth is affected by
memory type
FSB speed
CPU:Memory clock ratio
motherboard
CPU
in that order.

Download the free version of SiSoft Sandra from
http://www.sisoftware.co.uk/
and the free version of Everest from
http://www.lavalys.com/
and compare.

Be aware that

* different test programs can give different results

* DDR2 memory generally available is not fast enough to run at the full FSB
speed and a reduced CPU : Memory clock ratio must be used

* larger L2 caches can give large performance increases, depending on the
applications.



There are free diagnostic programs in addition to SiSoft Sandra, and many
many memory subsystem comparisons can be found at websites like Tom's
Hardware, Anand Tech, X-bit Labs, Extreme Tech, Sharky Extreme ...

Also a higher CPU speed increases the system computing power much more than
smaller memory delay timings. Go for a significant CPU overclock before
worrying about shortened memory delay timing. Core2 E CPUs are the most
overclockable of all Intel CPU; easily capable of MUCH more than a 10%
overclock (50% is easy, 75% has been done without exotic cooling.

Phil Weldon


"Comp Guy" wrote in message ...
| I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
| motherboard and have been using memtest86+ (v 1.70).
|
| The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
| cooler) and I'm getting about 3335 mb/sec for the memory speed on
| memtest. What sort of memory performance speeds are typical these
| days in mid to high-performance and tweeked systems?

Comp Guy wrote:
I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
motherboard and have been using memtest86+ (v 1.70).

The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
cooler) and I'm getting about 3335 mb/sec for the memory speed on
memtest. What sort of memory performance speeds are typical these
days in mid to high-performance and tweeked systems?

It's hardly something most people care about, even enthusiasts. That's
because it's such an artificial measurement.

Yousuf Khan

--
There is no failure, only delayed success

"Yousuf Khan" wrote in message ...
Comp Guy wrote:
I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
motherboard and have been using memtest86+ (v 1.70).

The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
cooler) and I'm getting about 3335 mb/sec for the memory speed on
memtest. What sort of memory performance speeds are typical these
days in mid to high-performance and tweeked systems?

It's hardly something most people care about, even enthusiasts. That's
because it's such an artificial measurement.

I get just under 6000MB/sec on my 3.6GHz P4 Northwood
(dual channel/240FSB/1:1).

wrote in message
et...
"Yousuf Khan" wrote in message
...
Comp Guy wrote:
I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
motherboard and have been using memtest86+ (v 1.70).

The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
cooler) and I'm getting about 3335 mb/sec for the memory speed on
memtest. What sort of memory performance speeds are typical these
days in mid to high-performance and tweeked systems?

It's hardly something most people care about, even enthusiasts. That's
because it's such an artificial measurement.

I get just under 6000MB/sec on my 3.6GHz P4 Northwood
(dual channel/240FSB/1:1).



I get 7009MB/s on Core2Duo E6600 @3.2GHz, (DDR2/222MHz FSB/4:5)=890MHz

Icky Thwacket wrote:
wrote in message
et...
"Yousuf Khan" wrote in message
...
Comp Guy wrote:
I'm optimizing the memory and cpu clock settings on an Asus P5NSLI
motherboard and have been using memtest86+ (v 1.70).
The board has a Core2 E6300 (1.86 ghz) clocked to 2.04 ghz (with stock
cooler) and I'm getting about 3335 mb/sec for the memory speed on
memtest. What sort of memory performance speeds are typical these
days in mid to high-performance and tweeked systems?
It's hardly something most people care about, even enthusiasts. That's
because it's such an artificial measurement.
I get just under 6000MB/sec on my 3.6GHz P4 Northwood
(dual channel/240FSB/1:1).



I get 7009MB/s on Core2Duo E6600 @3.2GHz, (DDR2/222MHz FSB/4:5)=890MHz


All of those measurements depend on what software is measuring it, and
often is even dependent cache size.

Yousuf Khan

--
There is no failure, only delayed success

(message (Hello 'Yousuf)
(you :wrote n '(Fri, 16 Mar 2007 02:49:27 -0400))
(

YK It's hardly something most people care about, even enthusiasts. That's
YK because it's such an artificial measurement.

yes, artificial, but, nevertheless, quite important.
if algorithm uses more-or-less big quantities of memory that does not fit in
processor cache, and if it doesn't use some complex computations, it's
highly likely that it will run as fast as memory bandwidth allows, less
depending on clock speed of processor.

thus, if you overclock your processor, but your memory is running slow, for
some applications you can have poor performance

)
(With-best-regards '(Alex Mizrahi) :aka 'killer_storm)
"?? ???? ??????? ?????")

All of those measurements depend on what software is measuring
it, and often is even dependent cache size.

Exactly. The OP was referring to the memory speed as shown by
Memtest86+ (v 1.70), which is likely unbuffered. For the record,
my Biostar 965PT with E6400 at 8 x 380 with Micron DDR2-667
and 3-3-3-12 timings scores 3458 MB/s. I'm not sure which
version of Memtest86+ I used as it came integrated in the BIOS
and I failed to notice.

My computer uses a neural net with gel packs, I get 600 yottabytes/sec.

-g

For the record, my Biostar 965PT with E6400 at 8 x 380 with
Micron DDR2-667 and 3-3-3-12 timings scores 3458 MB/s.
I'm not sure which version of Memtest86+ I used as it came
integrated in the BIOS and I failed to notice.

The BIOS integrated Memtest86+ is version 1.65. For the hell
of it, I cranked it up to 450 x 7 (4-4-4-12) and the bandwidth
jumped to 4017 MB/s.