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Which graphics card for my system - 770 v 7970

Most gtx 770s boost to greater than 1100 at stock hell my 670s boots to 1215 with only a mild clock on them or are you suggesting a 770 at 1100 will be slower than a 7950 at 1100?

Xcandyman:

You can't compare the clock speed of different architectures like that.

1100Mhz has no bearing on 1100Mhz on another chip.

I'm getting the feeling that your understanding of graphics cards is very limited to the extreme basics.
 
Well done for stating the one thing that many people don't bother with when asking for help, if more people would just say this at the beginning of the threads so many arguments would never happen.

Anyway as for which card would be best for you, the 770 or the 7970 GHz ed are the two cards to look at, go read this review.
http://www.anandtech.com/show/6994/nvidia-geforce-gtx-770-review (don't worry its a recent review and done with new drivers)
and then you will see that they are so close to each other swinging this way and that depending on which game your playing.
Priceing is very similar on here, one thing to bear in mind is that certain AMD cards get a good bundle of games with them, listed here.

http://forums.overclockers.co.uk/showthread.php?t=18524382

Sorry not to be able to say get this card its better then the other, but in this case the two you have asked about are very very evenly matched, good luck with your choice.

In such a situation, I strongly believe the OP should be encouraged to overclock considering how simple and painless it is to achieve a large free bump in performance.

Lots of people are apprehensive of overclocking simply because they've never done it before and it worries them that they might mess something up.

Oh also, Xcandyman, a 520w PSU should be fine for a moderate overclock on a 7950. People make a habit of over exaggerating the power requirements of computers.

With the specs you've listed, your whole PC with an overclocked 7950 shouldn't be using more than 400 watts, you'll have plenty left.
 
Quite the opposite tbh I was questioning your comment, you were the one that stated that an overclocked 7950 would be better than a stock 770, well obviously, I was asking if it was your belief that a similar clocked 770 would still be slower than a 7950, you response makes me believe the in fact the 770 would be quicker and you just dont want to compare apples to apples

Lastly your comment regarding my lack of knowledge you are aware the 770 and the 670 use the same chip I assume?
 
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Quite the opposite tbh I was questioning your comment, you were the one that stated that an overclocked 7950 would be better than a stock 770, well obviously, I was asking if it was your belief that a similar clocked 770 would still be slower than a 7950, you responce makes me believe the in fact the 770 would be quicker

Lastly your comment regarding my lack of knowledge you are aware the 770 and the 670 use the same chip I assume?

I think you've cemented your basic understanding.

Of course I'm aware that the 770 and 670 use the same chip (GK104) except that the 770 is more akin to an overclocked GTX680 than a 670.

Because the chips work so differently, there is no "similar clocks". The closest you can get to comparisons is to compare overclock percentages.

So, a 770 has a base clock of 1046? I can't see a GTX 770 overclocking by around 40% to around 1450Mhz being considered a moderate overclock, it's already being pushed as it is and doesn't have any voltage control.
 
Stuie, if you use surround (3 screens) with 2x670's and you try to play bf3 Mp at 5760x1080p in ultra your cards will probably crash your system. The 2GB Gddr memory bandwidth is a massive problem for high resolution 4k and 5760x1080p gaming.

Like i've posted before my
bro had 3x660ti's that could only manage high settings in BF3 and would crash out when ultra was selected at 5760x1080p.

2Gb is a major problem for high res or multiscreen gaming. (Crysis 3, Battlefield 3 MP etc)
 
The main issue with multiscreens is the memory bandwidth of those cards. The memory quantity has been less of an issue than the bandwidth.
 
The 760 is a great card for a single monitor and multi gpu use (2Gb Gddr5)
The 7950 is a great card for single and multimonitor, multigpu use (3Gb Gddr5).

If you only want a single card both are great, the 7950 overclocks like a monster if required and has more ram and is more future proof in terms of its ability to be used for eyeinfinity which demands higher bandwidth.
 
Just to add 2x7950's overclocked (1150Mhz) can play bf3 MP with 3 screens at 5760x1080p with 70fps mins. 3x660ti's (crashed out and wouldn't even start!!!)
 
Memory usage reported isn't necessarily memory required. Game assets are often cached to memory so it's there to use when is needed.

So does or doesn't BF3 Mp need more than 1.8Gb Gddr5 to play at min 60fps? (5760x1080p) I say it certainly does.
 
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7970/7950's have 6x64 bit memory control modules that make up the 384 bit, so combined with 3Gb Gddr5 it looks pretty good on paper.
The 770 has 4x64 bit mem controll modules giving 256 bits combined with 2Gb Gddr5.
 
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It's not misinformation. It simply makes no sense to buy a 2GB card now for someone who wants good longevity out of said card.



This isn't how VRAM works.



This also isn't how VRAM works. Computationally expensive settings (read heavy GPU usage) don't require more VRAM on a linear scale.

VRAM usage and GPU usage aren't closely linked as you believe.



This isn't how VRAM works. It's a fallacy to think you need 3-4 cards to fill up VRAM. It doesn't work like this.

If your card isn't VRAM limited, then a game maxed out on a single card is only going get higher FPS (read, no increase in VRAM requirement) by adding more GPUs.

The VRAM usage will not go up just because you're got more GPUs.

Not all this again

Can you quote one game I can run on one of my Titans that uses more than 2gb of vram and gives good fps.

Op for a single screen and single GPU a 2gb card is fine. If anyone mentions futureproofing both the GTX 770 and HD 7970 will become obsolete at the same time, they both have about the same performance and will both fail to come up with acceptable fps with future games at the same time.
 
Not all this again

Can you quote one game I can run on one of my Titans that uses more than 2gb of vram and gives good fps.

Op for a single screen and single GPU a 2gb card is fine. If anyone mentions futureproofing both the GTX 770 and HD 7970 will become obsolete at the same time, they both have about the same performance and will both fail to come up with acceptable fps with future games at the same time.

+1
 
Not all this again

Can you quote one game I can run on one of my Titans that uses more than 2gb of vram and gives good fps.

Op for a single screen and single GPU a 2gb card is fine. If anyone mentions futureproofing both the GTX 770 and HD 7970 will become obsolete at the same time, they both have about the same performance and will both fail to come up with acceptable fps with future games at the same time.

Correlation doesn't equal causation. If you understood anything about 3D graphics you'd understand.

You also need to note that I'm talking about longevity. Due to the new consoles ram usage will be going up independent of required gpu power.
 
Correlation doesn't equal causation. If you understood anything about 3D graphics you'd understand.

You also need to note that I'm talking about longevity. Due to the new consoles ram usage will be going up independent of required gpu power.

Give me a game that uses more 2gb of vram and gives acceptable fps on a single screen using a Titan, you have an open goal take your shot.:D

I don't think we will ever see it as my Titan is just not fast enough, perhaps you can think of an AMD card that is.
 
Stuie, if you use surround (3 screens) with 2x670's and you try to play bf3 Mp at 5760x1080p in ultra your cards will probably crash your system. The 2GB Gddr memory bandwidth is a massive problem for high resolution 4k and 5760x1080p gaming.

Like i've posted before my
bro had 3x660ti's that could only manage high settings in BF3 and would crash out when ultra was selected at 5760x1080p.

2Gb is a major problem for high res or multiscreen gaming. (Crysis 3, Battlefield 3 MP etc)

Vram is not the problem :)

The main issue with multiscreens is the memory bandwidth of those cards. The memory quantity has been less of an issue than the bandwidth.

Correct

Just to add 2x7950's overclocked (1150Mhz) can play bf3 MP with 3 screens at 5760x1080p with 70fps mins. 3x660ti's (crashed out and wouldn't even start!!!)

I take it this is not maxed settings, as no way would your minimums be 70 fps
 
So does or doesn't BF3 Mp need more than 1.8Gb Gddr5 to play at min 60fps? (5760x1080p) I say it certainly does.

I think in your brothers case the 660's were rubbish, if you had 2 670's at that res it would be fine and comparable to the 7950's.

660's are a lot slower than a 7950 and a 670 or 680. one or more of the cards might have been playing up. But it was not the 3gb memory on the 7950 that made it better, it was the newer and faster 7950 itself that fixed the problems as would 2x 670's with only 2gb.
 
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