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HOW TO: Tell an ATI 5xxx Reference card from non-reference - Page 7

post #61 of 67
What are those ports?
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The Beast
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post #62 of 67
Just because there's a fan in the center doesn't mean it's not reference. Sapphire Vapor-X Reference in my sig is such example.
Vapor-X cooler but reference board and layout. Yeah I know it's pretty rare but they do exist.



You can't really tell from the pic but the power connector location is the same as the reference card on the bottom.
Also notice the AMD logo as well as the color of the PCB.
Edited by calavera - 3/28/11 at 7:43pm
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post #63 of 67
Not sure if it has been said yet but the "New" XFX 5770 Model HD-577A-ZNFC (phoenix shroud cooler) may not be a reference model but it does have Voltage tweaking. This card is not to be confused with the HD-577X-ZNFC model (egg cooler)
post #64 of 67
When it comes to XFX they have reference and non-reference cards. You can tell the difference by looks, but if a retailer has [product &packaging may differ from picture] then you can tell by reading the manufacturer code.

For example:

HD-587A-ZND9
HD-587A-ZNE9
HD-587A-ZNDA
HD-587A-ZNEA

And so on.

All the reference cards have the number "9" at the end of the code "HD-587A-ZND9" and look like this.

But the non-reference cards have letters at the end of the code "HD-587A-ZNDA" or "HD-587X-ZNFC" and they look like this

Now you can also tell the different specification of the XFX cards by looking at the manufactures codes.

For example best at the top:

HD-587A-ZNDA or HD-587A-ZND9
HD-587A-ZNEC or HD-587A-ZNE9
HD-587A-ZNFV or HD-587A-ZNF9

And so on.

This difference between the letters "D and F" are the GPU clocks and the memory clocks.

"D" would be GPU clock 875MHz and memory clock 5.2GHz.

Whilst "F" would be GPU clock 850MHz and memory clock 4.8GHz.

Hope this help any XFX fans/buyers!
post #65 of 67
I've been given an original ATi reference design 5850
post #66 of 67
"With the exception of some ASUS cards, non-reference-design Radeon 5xxx cards lack this circuitry, as it raises the price of the card."

I'm confused. How do you explain the posts on here:

http://forums.extremeoverclocking.com/t349730.html

"Here's one more shot, my card has never run 1GHz stable, even on my water cooling. It NEEDS voltage for 1GHz core. Proof this is working on my non-reference 585x-ZNFC XFX 5850"
(screen shot of high overclock)
?
post #67 of 67
Quote:
Originally Posted by jasontaylor7 View Post

"With the exception of some ASUS cards, non-reference-design Radeon 5xxx cards lack this circuitry, as it raises the price of the card."

I'm confused. How do you explain the posts on here:

http://forums.extremeoverclocking.com/t349730.html

"Here's one more shot, my card has never run 1GHz stable, even on my water cooling. It NEEDS voltage for 1GHz core. Proof this is working on my non-reference 585x-ZNFC XFX 5850"
(screen shot of high overclock)
?

these cards were theoretically capable of voltage manipulation, but had a different voltage controller than the REF design, and therefore wasnt included in most driver specs. Shortly after that version of trixx came out, a driver update again disabled said voltage changes.
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