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Nvidia 670 or Ati 7970

Rusty0611 said:
You're not being trolled you have just got it wrong.

The fact of the matter is if you had two identical silicon quality 7950/70s they'd both reach the same clock speed and as a result be within 5% of each other. What clocks they start at is irrelevant.
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Actually the facts say that I was spot on. If, as some of you have so vehemently stated, the 7950 has more overclocking head room, try and explain this.

Here's a comparison from the largest overclocking database on the Internet.



http://hwbot.org/hardware/videocard/radeon_hd_7950/
http://hwbot.org/hardware/videocard/radeon_hd_7970/


It's also based on 7950's clocked to 880MHz, which shows the final overclocks are almost perfectly correlated to starting clocks. For both cards.

I'd like to see this proven wrong. I'm sure some will try, persistence seems to be in abundance with some.
 
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Well let me say one thing - if I had umpteen people telling me I was wrong I'd at least start to listen.

The answer to your question from the HW Bot is actually extremely simple: there are a far, far greater number of people who water cool/exotic cool 7970s over 7950s. There's other reasons too such as premium cards like the Lightning being 1150 out the box, more 7970s being benched as they are AMDs top end part and so on and so forth.

The 7950 is just a 7970 with the shaders lasered off so there's no evidence to suggest that if everything else was constant between a 7970 and 7950 other than the GPU itself they wouldn't reach the same clock speeds.

Sorry time to except the facts and what everyone else is telling you :). I only joined in because you weren't listening to other people and were continuing to state your incorrect information.

To give you some further context it's similar to the 670/680 as well. The 670 starts off on a lower clock speed but they're within 5% of each other at the same clock speeds. 670s also top out at the same kind of level as 680s.

Same thing; different brand.

The 7950 does have more overclocking headroom because it starts off a lower clock speed. That's different to saying it overclocks higher but when talking about headroom this holds true.
 
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Oh and not pointing out that there's only loose correlation between what has been benched and what is capable of being benched...
 
Rusty, you don't even need to go to that extent, just look at the "evidence" he's bringing himself.

7970: Hardware index based on 8,656 submissions

7950: Hardware index based on 863 submissions

there's been 10x as many submissions of 7970s as there have been for 7950s.

Also, for some reason it's listing 880Mhz as the 7950 stock clock which is incorrect.

800Mhz to 1149 is 349Mhz

925Mhz to 1214Mhz is 289Mhz

Which shows even by his own "evidence" that 7950s have more overclocking headroom anyway.
 
So, a comparison containing over 9000 (yes, over 9000) isn't good enough to show how utterly wrong some were and what an utter waste of time this has been for me. There are 8000 or so 7970's there, the vast number are going to be air cooled, and those that aren't will not have a large enough advantage to move the averages.

simple common sense.


@spoffle

You are clearly not the brightest of the bunch.


Anyway, there's nothing more to see here. Move along.
 
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Proto said:
So, a comparison containing over 9000 (yes, over 9000) isn't good enough to show how utterly wrong some were and what an utter waste of time this has been for me. There are 8000 or so 7970's there, the vast number are going to be air cooled, and those that aren't will not have a large enough advantage to move the averages.

simple common sense.
Click to expand...

You're comparing nearly 9000 7970s to nearly 900 7950s.

There's 10 times as many 7970s there, your own proof goes against you.

It's sad that you even need to be told that it's not a valid comparison.

@spoffle

You are clearly not the brightest of the bunch.


Anyway, there's nothing more to see here. Move along.
Click to expand...

Oh lawd, again you're blaming someone else for your own issues, it's your fault alone that you're wrong and keep trying to use bad examples that disprove your claims.
 
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Proto said:
So, a comparison containing over 9000 (yes, over 9000) isn't good enough to show how utterly wrong some were and what an utter waste of time this has been for me. There are 8000 or so 7970's there, the vast number are going to be air cooled, and those that aren't will not have a large enough advantage to move the averages.
Click to expand...

That may be so but you haven't addressed my issues with using this a comparison for the point you're making. You're also ignoring the technical aspect that a 7950 is a 7970 with just the shaders removed.

There's also only ~900 7950s.

Proto said:
simple common sense.
Click to expand...

Yes, you're right it is. There's even people with 7970s telling you you're wrong on this point.

Proto said:
@spoffle

You are clearly not the brightest of the bunch.
Click to expand...

No need for that. I think you should apologise as by going for the personal kind of proves you've nothing further to say to the point at hand :(.
 
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Rusty0611 said:
That may be so but you haven't addressed my issues with using this a comparison for the point you're making. You're also ignoring the technical aspect that a 7950 is a 7970 with just the shaders removed.
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Don't forget the four missing compute units as well. :p
 
Hey guys, Ive just started using these forums and would like to contribute. I too have been thinking really hard about the 670 or 7970. for some reason I have always used AMD cards (Sapphires) as they seem a tad cheaper than the Nvidia equivalent.

One thing that occurred to me recently is longevity, which of these 2 cards will continue to provide value for longer and most importantly how will they fair when used in SLI and XFIRE?

In terms of the actual card, im finding it difficult to find out how well it supports OC'n, I havent really OC'd before but id like to so this is a huge contributing factor when I finally decide. I noticed someone posted the Gigabyte windforce 7970 earlier, I was thinking about this card as I understand the cooling is perfect for OC but I also heard that the voltage was locked or something along these lines.

Its a minefield out there, I just want to make the right decision as it is a lot of money. If anyone can shed light on these issues and how to naviagte my way through them then that would be brilliant.

Cheers, K
 
@ken0y,

Welcome to the forum.

This is the card to get imo having used one(stupidly DSR'd it:():

YOUR BASKET
1 x HIS HD 7950 IceQ BOOST 3072MB GDDR5 PCI-Express Graphics Card (H795QC3G2M) with FREE FARCRY3, Hitman Absolution, Sleeping Dogs & 20% off MOH Warfighter PC Games £239.99
Total : £250.79 (includes shipping : £9.00).



Forget the 7970's 67/80's unless you simply must have the fastest there is.

The best bang for buck card by a country mile is a 7950, I use 7970/50 CrossFireX by the way, so using both of them, there is nothing visually in it@1080p.

Had a good laugh at the way this thread went, but the sensible guys should be listened to...
 
Actually this thread makes me wonder, when I consider my other thread I opened about failures on 79XX cards... should I not be vehemently trying to push people to 670/680?

I mean, I won't, but given my personal experience with the 79XX cards, doesn't it mean I should be yelling "Stay away from AMD cards! They die when you just think about unboxing them!"
 
LOAM said:
Rendering you say? What software are you using?. I've got a GB670WF and its absolutely dire in an open GL environment, sketchup is insanely bad and runs worse than the 5870 I used before. It's so bad I'm considering getting rid it as its not great in Autocad either.

Before I'm bombarded with "zomg, buy quadro if you need open GL", let me just preemptively answer, No ;)
Click to expand...

sorry slight aside, but check your card isnt downclocking the core and memory down to idle speeds, i had similar opengl issues, my 670 was much slower than my previous ati 6950, a lot lot slower, painfully slow when switching models in and out of vram etc, and this was the cause, i used a +5 to each in msi afterburner so it would remain at what i fixed it at and it was suddenly an awful lot faster! I only spotted this was a problem after leaving gpu-z open on the sensor tab for other reasons. I think it was using 10% of my 125mhz memory controller at one point to load/unload models, cant really remember properly but i was like, ok thats the issue then lol.
 
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Thanks for the reply Tommy, The 7950 does look very tempting for basically £100 less than the equivalent 7970 model. The HIS is currently my favourite, I've read good things about the cooling and OC capabilties, plus it seems quite thin which would be ideal for Xfire.

What are your impressions on build quality, temps, OC and your Xfire config?

Cheers, K
 
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