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Best 7970 card? - Page 3

post #21 of 57
Thread Starter 
60 hz 1920 by 1080
post #22 of 57
Although I use Nvidia, I have to say the Lightning brand is pretty damn good either way. It stays really cool, I don't hear it, and it runs like a beast.. lots of OC potential as well (could differ with the 7970 version ).
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post #23 of 57
Quote:
Originally Posted by CNCoRIDDoR View Post

60 hz 1920 by 1080

then you could go for MSI HD 7970 lightning. if you want to watercool there is a custom full cover waterblock.

http://www.frozencpu.com/products/16887/ex-blc-1203/EK_MSI_Lightning_Radeon_HD_7970_VGA_Liquid_Cooling_Block_-_Acetal_Nickel_CSQ_EK-FC7970_Lightning_-_AcetalNickel.html?tl=g30c309s1590&id=KVuufMC7
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post #24 of 57
Thread Starter 
Yeah that's my idea. Just asking you guys though if it is a good set up.
post #25 of 57
Quote:
Originally Posted by CNCoRIDDoR View Post

Is it a good idea just go for lightning, buy water block?

For air it's a solid buy but it has a negative due to no dual link dvi ports. This is rather comical on a card of this price. On water, it has less value imo... I'd rather get a reference card plus block. This is because the upgraded vrm design of the Lightning would not be utilized to any advantage because it will run silly cool under water. Thus it sort of defeats the point of buying the card. When put into context, overclocking is down to the silicon quality, it's luck of the draw so the actual pcb design is second to the silicon quality. The upgraded vrms won't increase your overclock and it doesn't really come into it's own until you start feeding the card mass volts under LN2.
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post #26 of 57
Thread Starter 
Wha
Quote:
Originally Posted by tsm106 View Post

For air it's a solid buy but it has a negative due to no dual link dvi ports. This is rather comical on a card of this price. On water, it has less value imo... I'd rather get a reference card plus block. This is because the upgraded vrm design of the Lightning would not be utilized to any advantage because it will run silly cool under water. Thus it sort of defeats the point of buying the card. When put into context, overclocking is down to the silicon quality, it's luck of the draw so the actual pcb design is second to the silicon quality. The upgraded vrms won't increase your overclock and it doesn't really come into it's own until you start feeding the card mass volts under LN2.
Can you point me to a good reference card then?
post #27 of 57
The only true reference cards left off the top of my head are teh Diamond and Visiontek cards. The Sapphire 7970 OC used to be based on the reference design so it was compatible with reference blocks. The HIS reference cooler card... this one is tricky because even though it follows reference design, it is fabbed by HIS and I've read an instance or two where HIS used a different vrm controller chip. This meant no voltage control. Brands/cards not mentioned will be ymmv.


http://www.nowinstock.net/computers/videocards/amd/7970/
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post #28 of 57
Quote:
Originally Posted by tsm106 View Post

For air it's a solid buy but it has a negative due to no dual link dvi ports. This is rather comical on a card of this price. On water, it has less value imo... I'd rather get a reference card plus block. This is because the upgraded vrm design of the Lightning would not be utilized to any advantage because it will run silly cool under water. Thus it sort of defeats the point of buying the card. When put into context, overclocking is down to the silicon quality, it's luck of the draw so the actual pcb design is second to the silicon quality. The upgraded vrms won't increase your overclock and it doesn't really come into it's own until you start feeding the card mass volts under LN2.

with this being the case looking at HD 7970 Ghz or lightning which have higher stock clocks means the OP is atleast having better stock performance to start with. anything over and above as you said is luck. thumb.gif

OP here is another card you could have a look at.

The HIS HD 7970 iceq X2 Ghz edition with model no H797QMC3G2M has a reference AMD design. so it will be compatible with full cover waterblock. has voltage control. dual 8 pin power connectors. the HIS HD card has 6+1+1 power phases compared to 5+1+1 on reference AMD HD 7970. the increased power phases with dual 8 pins will mean lower temps and better stability at extreme overclocks. you can confirm with ekwb site for full cover waterblock compatibility.

http://www.coolingconfigurator.com/

you can see the card here
http://www.legionhardware.com/articles_pages/his_7970_iceq_xsup2_ghz_edition_7950_iceq_xsup2_boost_clock,2.html

OC
http://www.legionhardware.com/articles_pages/his_7970_iceq_xsup2_ghz_edition_7950_iceq_xsup2_boost_clock,13.html
http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/59265-his-hd-7970-iceq-x-hd-7950-iceq-x-review-14.html

http://www.newegg.com/Product/Product.aspx?Item=N82E16814161431
Edited by raghu78 - 1/28/13 at 8:53pm
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post #29 of 57
Guys be very careful buying non ghz cards if you are looking for ghz performance, I am seeing more and more 7970's that are voltage locked. Personally the best card I have had in terms of overclocking is the powercolor vortex 2, I had the lightning but it was useless because it could not output 120hz, the vapor x in my opinion runs very hot and the fan is as loud as a leaf blower, the gigabyte that I had was voltage locked so overclock was about 10 mhz.

The powercolor is relatively quiet at 75% fan speed, and can overclock to 1200mhz clock and memory to 1600,
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post #30 of 57
Thread Starter 
I'll look for that his hd 7970
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