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[HWC] AMD Confirms Price Drop on HD 7970, HD 7950 & HD 7770, Adds "3 For Free" Game Promo - Page 18

post #171 of 205
Quote:
Originally Posted by djriful View Post

Careful with Asus DCII cooling flaw. There were reports of hitting 100'C+

Yeah i heard about that. I think i'll take my chances!!
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post #172 of 205
Quote:
Originally Posted by raghu78 View Post

They mean a lot when both cards are shown to have similar clock speed ceilings. GTX 680 on air is shown to not clock beyond 1.3 - 1.35 Ghz. HD 7970 clocks upto 1.3 Ghz with voltage oc. the GTX 680 is clocked closer to its max speed ceiling in stock design. The HD 7970 is conservative in that aspect.

Clock-for-clock entails a comparison at the same clock speeds, not their ability to overclock.

As I said, relative overclocking potential is useful. EG a 800-1000mhz increase and a 1000-1250mhz increase are both 25% gains, despite the difference in the actual frequency increase. The clock speed is relative to the architecture of the GPU and while percentage changes are useful, direct clock-for-clock comparisons between different architectures just are not relevant. Whether a GPU has a core clock of 500mhz or 1000mhz is irrelevant between architectures. How well it scales is useful, though.
Edited by staryoshi - 4/17/12 at 10:09am
    
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post #173 of 205
Quote:
Originally Posted by staryoshi View Post

Clock-for-clock entails a comparison at the same clock speeds, not their ability to overclock.
As I said, relative overclocking potential is useful. EG a 800-1000mhz increase and a 1000-1250mhz increase are both 25% gains, despite the difference in the actual frequency increase. The clock speed is relative to the architecture of the GPU and while percentage changes are useful, direct clock-for-clock comparisons between different architectures just are not relevant. Whether a GPU has a core clock of 500mhz or 1000mhz is irrelevant between architectures. How well it scales is useful, though.

Do you want some scaling results for the HD 7970 . It scales beautifully in fact and better than GTX 680.

http://www.hardocp.com/article/2012/04/10/sapphire_hd_7970_oc_edition_video_card_review/7

HD 7970 (950 Mhz ) avg 40.0 fps min 27 fps
HD 7970 (1280Mhz) avg 50.7 fps min 34 fps.
The perf scaling is 94% from 950 Mhz to 1280 Mhz . (40 * 1280 / 950 x 0.94 = 50.66). So do you still have doubts about the HD 7970 perf scaling ?

In the most demanding games at high res (2560 x 1600) and max settings like Crysis Warhead, Crysis 2, BF3, Metro 2033 HD 7970 scales very well with increase in core clocks.
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post #174 of 205
Quote:
Clock-for-clock entails a comparison at the same clock speeds, not their ability to overclock.

As I said, relative overclocking potential is useful. EG a 800-1000mhz increase and a 1000-1250mhz increase are both 25% gains, despite the difference in the actual frequency increase. The clock speed is relative to the architecture of the GPU and while percentage changes are useful, direct clock-for-clock comparisons between different architectures just are not relevant. Whether a GPU has a core clock of 500mhz or 1000mhz is irrelevant between architectures. How well it scales is useful, though.
The 680 is about 5-6 percent faster at stock shipped is what I meant originally which is true. I know different clocks etc tho different arcitectures which means its still 5-6 percent faster, anyways both great cards blah blah blah getting 7950.
post #175 of 205
Has anyone purchased one since this and gotten notified about the free games? Want to pull the trigger
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post #176 of 205
Quote:
Originally Posted by votum View Post

Has anyone purchased one since this and gotten notified about the free games? Want to pull the trigger


Hey Bud,

PM me if you hear the anything on the 3 games, my finger is on the trigger as well, My last piece to my PC Build!

Thanks

I'm looking at these 2

http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100006519%2050001561%2040000048&IsNodeId=1&bop=And&ActiveSearchResult=True&CompareItemList=48|14-102-963^14-102-963-TS,14-102-962^14-102-962-TS&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-RSSDailyDeals-_-na-_-na&AID=10521304&PID=4003003&SID=oaxc0h282b8o

thanks Michael in San Antonio
post #177 of 205
Quote:
Originally Posted by staryoshi View Post

Clock-for-clock entails a comparison at the same clock speeds, not their ability to overclock.
As I said, relative overclocking potential is useful. EG a 800-1000mhz increase and a 1000-1250mhz increase are both 25% gains, despite the difference in the actual frequency increase. The clock speed is relative to the architecture of the GPU and while percentage changes are useful, direct clock-for-clock comparisons between different architectures just are not relevant. Whether a GPU has a core clock of 500mhz or 1000mhz is irrelevant between architectures. How well it scales is useful, though.

Generally I agree with you but I think his point is that both cards max out around 1.3ghz on good silicon and at that level performance is about equal.
    
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post #178 of 205
Quote:
Originally Posted by jtom320 View Post

Quote:
Originally Posted by staryoshi View Post

Clock-for-clock entails a comparison at the same clock speeds, not their ability to overclock.
As I said, relative overclocking potential is useful. EG a 800-1000mhz increase and a 1000-1250mhz increase are both 25% gains, despite the difference in the actual frequency increase. The clock speed is relative to the architecture of the GPU and while percentage changes are useful, direct clock-for-clock comparisons between different architectures just are not relevant. Whether a GPU has a core clock of 500mhz or 1000mhz is irrelevant between architectures. How well it scales is useful, though.

Generally I agree with you but I think his point is that both cards max out around 1.3ghz on good silicon and at that level performance is about equal.

Exactly.
post #179 of 205
I never commented on the actual performance of the cards. Max OC vs. Max OC is a useful measure, I don't care what frequency each is at.

On Topic: The HD7950s dropped in price again on NewEgg, I may have to pick one up. (2nd price drop today)
Edited by staryoshi - 4/17/12 at 4:45pm
    
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post #180 of 205
Thread Starter 
my next card is either going to be This or This for sure. I'm set on them.
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