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Why are the Diamond reference 7970s overclocking well compared to the other brands' cards? - Page 2

post #11 of 13
Quote:
Originally Posted by tsm106 View Post

It doesn't blow any more than the fact that true reference cards are not produced today. It's not like you can order one off newegg if you wanted. The diamonds have not been stocked since May and there is no stock at Diamondmm either.


Anyways that said, you look for the green serial number sticker. Only true reference cards will have that sticker. Then if you are even more lucky, you might get one of the sapphire cc cards. These are better than the reference card due to the sapphire dual-x cooler since it comes with a nice memory plate and a good performing vrm block. It clearly beats the accelero in this respect.

Gotcha thanks. Keep in mind some people are out there looking for used reference cards so buying new has no relevance to them. The heatsink doesn't matter to me as it's going on water wink.gif
post #12 of 13
Quote:
Originally Posted by tsm106 View Post

It doesn't blow any more than the fact that true reference cards are not produced today. It's not like you can order one off newegg if you wanted. The diamonds have not been stocked since May and there is no stock at Diamondmm either.


Anyways that said, you look for the green serial number sticker. Only true reference cards will have that sticker. Then if you are even more lucky, you might get one of the sapphire cc cards. These are better than the reference card due to the sapphire dual-x cooler since it comes with a nice memory plate and a good performing vrm block. It clearly beats the accelero in this respect.

I believe they are still producing reference design PCB's, for example the HIS 7970 IceQ X2, even though it's got a blue PCB, it's reference design and fits the full cover waterblocks. Same goes for the VTX3D 7970 and VTX3D 7970 X-Edition cards, both run black reference PCB although the X-Edition has an extra power phase for better overclocking but still reference and fits the waterblocks just fine I have them.

Bad part is, I don't think VTX3D sells in the US, it does here in Europe and they re-stock them quite fast every time they go out of stock so I believe they still produce them.
post #13 of 13
Thread Starter 
Quote:
Originally Posted by Falkentyne View Post

Its' because Diamond is the ONLY company that is still making 100% ORIGINAL reference cards--that is, the ones WITH VRM temp monitoring, the ones that CAN Be flashed with the unofficial AMD windows flasher to ghz edition (or with the bios file posted in the upgrade thread), and which fully work with sapphire trixx's force constant voltage (NONE Of the newer revision "reference" cards (the ones that do NOT show VRM temps) will work with constant voltage.

Many of the "reference V2" cards and the ghz cards recently seem to have low ASIC's.
Also the current reference cards (like the visiontek) dont have the "X" Bracket on the back (the bracket that has been on AMD cards for generations). The Diamond uses the X bracket for the GPU clamp so its fully 100% original reference, like the old sapphires used to be.

I Just got a Diamond ref 7970 non boost yesterday....seems to be fine at 1125/1700 (voltage must be changed from the default 1.12v to 1175-1187v, ASIC is 77% quality), but the card must be kept cool (seems to start getting issues around 80C). A rather hot running card, though..haven't tried removing the heatsink to put on some MX 4 yet, though....
Interesting.

Looking at some of the PCBs though:


Reference 7970



Compare the reference vs the Sapphire Dual X VRMs


Sapphire 7970 Toxic


Asus ROG Matrix 7970


MSI Lightning 7970

Quote:
Originally Posted by kcuestag View Post


I believe they are still producing reference design PCB's, for example the HIS 7970 IceQ X2, even though it's got a blue PCB, it's reference design and fits the full cover waterblocks. Same goes for the VTX3D 7970 and VTX3D 7970 X-Edition cards, both run black reference PCB although the X-Edition has an extra power phase for better overclocking but still reference and fits the waterblocks just fine I have them.

Bad part is, I don't think VTX3D sells in the US, it does here in Europe and they re-stock them quite fast every time they go out of stock so I believe they still produce them.

VTX3D does not. However, their parent company, TUL, sells in North America as "Power Color".
Edited by CrazyElf - 7/5/13 at 11:30pm
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5960X X99A XPower MSI r9 290X Lightning  MSI r9 290X Lightning 
RAMHard DriveHard DriveHard Drive
G.Skill Trident Z 32 Gb Samsung SM843T 960 GB Western Digital Caviar Black 2Tb Samsung 850 Pro 
Hard DriveOptical DriveCoolingCooling
Samsung SV843 960 GB LG WH14NS40 Cryorig R1 Ultimate 9x Gentle Typhoon 1850 rpm on case 
OSMonitorKeyboardPower
Windows 7 Pro x64 Korean 27" 2560x1440 Ducky Legend with Vortex PBT Doubleshot Backlit... EVGA 1300W G2 
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