[coastie65]

waldojim, on 13 December 2011 - 09:15 AM, said:

Not sure if I could convince myself to spend more on the ram though that I do the processor in this case... Newegg had then - for $650/kit.

Nope, I think I would opt for something cheaper although abut higher latency and timings ( that is what the extra expense is all about anyway ).

[waldojim]

I think I could survive with some 1866's if they were in the 9's.... like the GSkill ripjaws.
Though at the same time, this set is running at 6-8-6-24 @1600... not sure which would be better to have.

This post has been edited by waldojim: 13 December 2011 - 12:40 PM

[coastie65]

waldojim, on 13 December 2011 - 12:39 PM, said:

I think I could survive with some 1866's if they were in the 9's.... like the GSkill ripjaws.
Though at the same time, this set is running at 6-8-6-24 @1600... not sure which would be better to have.

Hmmmm, Decisions, Decisions.

[SnyperTodd]

waldojim, on 13 December 2011 - 12:39 PM, said:

I think I could survive with some 1866's if they were in the 9's.... like the GSkill ripjaws.
Though at the same time, this set is running at 6-8-6-24 @1600... not sure which would be better to have.

That's the exact set that I'm running in one of my rigs WJ. Actually I'm running half of it, and have a look for yourself at what it's capable of in 24/7 operation @ 1.7v:
http://valid.canardp....php?id=1608695


Pretty impressive results even from an LGA775 system.

This post has been edited by SnyperTodd: 13 December 2011 - 07:30 PM
Reason for edit: Added Cache & Memory test

[waldojim]

SnyperTodd, on 13 December 2011 - 07:28 PM, said:

That's the exact set that I'm running in one of my rigs WJ. Actually I'm running half of it, and have a look for yourself at what it's capable of in 24/7 operation @ 1.7v:
http://valid.canardp....php?id=1608695
G.Skill C&M 4.jpg

Pretty impressive results even from an LGA775 system.

Ok, to be honest, I am slightly confused. Is your chipset limiting the throuput?

I do like the clock speeds and timings, but if that throughput is accurate, and not limited by the chipset, then I am very very confused.

My current results:


EDIT: So we understand each other, the latencies I understand. Unfortunately, the added delay caused by the chipset is one that will be hard to minimize.

It is the read/write/copy bandwidhts that have me confused. At 950Mhz, your ram should flat destroy what I have going...

This post has been edited by waldojim: 13 December 2011 - 08:37 PM

[SnyperTodd]

waldojim, on 13 December 2011 - 08:35 PM, said:

SnyperTodd, on 13 December 2011 - 07:28 PM, said:

That's the exact set that I'm running in one of my rigs WJ. Actually I'm running half of it, and have a look for yourself at what it's capable of in 24/7 operation @ 1.7v:
http://valid.canardp....php?id=1608695
G.Skill C&M 4.jpg

Pretty impressive results even from an LGA775 system.

Ok, to be honest, I am slightly confused. Is your chipset limiting the throuput?

I do like the clock speeds and timings, but if that throughput is accurate, and not limited by the chipset, then I am very very confused.


EDIT: So we understand each other, the latencies I understand. Unfortunately, the added delay caused by the chipset is one that will be hard to minimize.

It is the read/write/copy bandwidhts that have me confused. At 950Mhz, your ram should flat destroy what I have going...

You're on an IMC, my memory controller is in the northbridge on that machine. That's the big difference. Breaking 10K across the board was an amazing feat in the LGA775 days, and anything in the 11K range was a huge achievement. IMCs are a different animal, and with the same memory at the same speeds and timings on your P55 board will absolutely destroy my X48 board's results.

[waldojim]

SnyperTodd, on 14 December 2011 - 02:41 PM, said:

You're on an IMC, my memory controller is in the northbridge on that machine. That's the big difference. Breaking 10K across the board was an amazing feat in the LGA775 days, and anything in the 11K range was a huge achievement. IMCs are a different animal, and with the same memory at the same speeds and timings on your P55 board will absolutely destroy my X48 board's results.

For some reason I just didn't expect the total bandwidth to be that badly affected by the chipset memory controller. I expected added latency, but not reduced bandwidth.

[waldojim]

hmmm.... might just have to rethink the video card that goes with this machine...
http://www.tomshardw...i-gcn,3104.html

If AMD releases a 7870 that is anywhere near as impressive, I think we may have a winner! Even the 7970 isn't a bad deal... though a bit more expensive that I would care to spend. Still the card performs on part with Nvidia dual GPU offerings... just impressive.

Quote

Looking at specifications specific to the 7970, AMD will be clocking it at 925MHz, giving it 3.79TFLOPs of theoretical computing performance compared to 2.7TFLOPs under the much different VLIW4 architecture of the 6970. Meanwhile the wider 384bit GDDR5 memory bus for 7970 will be clocked at 1.375GHz (5.5GHz data rate), giving it 264GB/sec of memory bandwidth, a significant jump over the 176GB/sec of the 6970.

http://www.anandtech...-hd-7970-review

HOLY SMOKES! My little 5770 only has about 77GB/sec...

This post has been edited by waldojim: 24 December 2011 - 07:36 PM

[Rommel]

waldojim, on 24 December 2011 - 07:27 PM, said:

hmmm.... might just have to rethink the video card that goes with this machine...
http://www.tomshardw...i-gcn,3104.html

If AMD releases a 7870 that is anywhere near as impressive, I think we may have a winner! Even the 7970 isn't a bad deal... though a bit more expensive that I would care to spend. Still the card performs on part with Nvidia dual GPU offerings... just impressive.

Quote

Looking at specifications specific to the 7970, AMD will be clocking it at 925MHz, giving it 3.79TFLOPs of theoretical computing performance compared to 2.7TFLOPs under the much different VLIW4 architecture of the 6970. Meanwhile the wider 384bit GDDR5 memory bus for 7970 will be clocked at 1.375GHz (5.5GHz data rate), giving it 264GB/sec of memory bandwidth, a significant jump over the 176GB/sec of the 6970.

http://www.anandtech...-hd-7970-review

HOLY SMOKES! My little 5770 only has about 77GB/sec...

WOW

Thats a lot of power--------- and money.
I have a 5770 also. Was a much better card not long ago until compared to whats out there now.
Is all that bandwidth needed?
How demanding are new games?

[waldojim]

Rommel, on 26 December 2011 - 06:35 AM, said:

WOW

Thats a lot of power--------- and money.
I have a 5770 also. Was a much better card not long ago until compared to whats out there now.
Is all that bandwidth needed?
How demanding are new games?

From what I understand, yes, it is needed. The ROPS used to be coupled to the memory controllers, and were actually bandwidth starved. By uncoupling the controllers from the ROPS, they could widen the memory bus, and actually open up the ROPS considerably. From what I can find, the ROPS themselves have not changed at all from the 6970 apart from the controller, and yet they are TONS faster. So far, from the testing I have seen, that memory bandwidth, and the new GPU design, have resulted in a beast of a card.