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Differences on the 7800gs cards from EVGA???????

post #1 of 7
Thread Starter 
Between these three models I am seeing and hearing these differences from forum groups:

7800 GS CO Superclock (EGVA fan N509) 1.6ns memory , CineFX 4.0 engine, Intellisample 4.0

78800 GS CO Superclock (reference fan N508)

7800 GS CO (Evga fan N506) 1.6ns memory, CineFX 3.0 engine, Intellisample 3.0

7800 GS (Reference fan N505) 1.4ns memory, CineFX 4.0 engine, Intellisample 4.0


Is the 1.4ns memory better? I am hearing the lower this number the better overclockign potential it has? If so why is the Superclock card at 1.6ns memory? And why would the (N505) with the 1.4ns memory be the cheapest card?

Also, what is the difference between the 3.0 and 4.0 versions of the CineFX and Intelisample?

Which cards have the better copper heatsink?

Which card is the overall best if i want to overclock it myself for the fastest speed?
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post #2 of 7
Thread Starter 
Just in case anybody is interested:

I called EVGA and spoke to one of their techs tonight. Very nice fella! Anyway, he has clarified this for all of us:

All 4 7800gs cards that they offer are at 1.4ns memeory response time. The 1.6ns was a typo.

Also, three out of the four cards state that they have CINEFX 4.0 and INTELLISAMPLE 4.0. The 7800 GS CO states it has 3.0 versions of these. This is also a typo. All four cards have the 4.0 verisons.

The other thing he clarified is that the 3 cards with "CO" in the model title have better copper heatsinks, while the bottom of the line 7800gs (model N505) does not.

There you go! So in conclusion and to affirm what a lot of people have told me, buy the 7800gs CO (model # N506) with the evga fan (got mine for $299 with free shipping from circuit city) and overclock it yourself and save the dough!!!!

Thanks to everyone for their advice and help on this!
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post #3 of 7
Nice detective work. I was getting suspicious of the stats on these when the PDF spec sheets looked sketchy and newegg says that "EPoX" is the manufacturer of THIS card. Thanks for clarifying.
post #4 of 7
for that same price you could get a 20 pixel pipe 7800GT with co heat sink(but i wouldnt keep the stock heat sink)
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post #5 of 7
if you were overclocking
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post #6 of 7
Thread Starter 
I just got this reply back from EVGA via email (see entire message below). Is this guy correct, or is he just promoting the higher cost product? From what I have heard, the 7800GS CO is the exact same card as the 7800GS CO SUPERCLOCK, except it is not overclocked which i could do the same thing my self and they would be identical. He is saying otherwise? Any opinions or advice? Thanks!!!

"Michael,
I cannot answer specific overclocking questions about the differences between the 1.6 and 1.4ns memory due to the fact that we do not officially support overclocking in that capacity. I can only tell you that the Superclocked cards have passed rigorous testing to be stable at the rates they're sold at. The N505 is not guaranteed to run at the speeds of the N509, and we will not support it if it does not as it is meant to run at its stock speeds; with overclocking, your mileage may vary. All of these cards support the CineFX and Intellisample 4.0 capabilities, which is part of what makes the 7 series cards better all around than the previous technologies".

Chris Walter
EVGA Customer Service

From: Curry, Michael R.
Sent: Tuesday, February 07, 2006 2:36 PM
To: Chris Walter
Subject: URGENT TO MAKE PURCHASE!
Importance: High

One more quick question:

Between these three models I am seeing and hearing these differences from forum groups:

7800 GS CO Superclock (EGVA fan N509) 1.6ns memory , CineFX 4.0 engine, Intellisample 4.0

78800 GS CO Superclock (reference fan N508)

7800 GS CO (Evga fan N506) 1.6ns memory, CineFX 3.0 engine, Intellisample 3.0

7800 GS (Reference fan N505) 1.4ns memory, CineFX 4.0 engine, Intellisample 4.0


Is the 1.4ns memory better? I am hearing the lower this number the better overclocking potential it has? If so why is the Superclock card at 1.6ns memory? And why would the (N505) with the 1.4ns memory be the cheapest card?

Also, what is the difference between the 3.0 and 4.0 versions of the CineFX and Intelisample?

Which cards have the better copper heatsink?

Which card is the overall best if I want to overclock the card myself?

Thanks Chris.
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post #7 of 7
I would bet that they are exactly the same, if there was a difference other than the clock speed, the price would be higher for the "superclock" version than it already is.
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