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192bit bus, whats this mean?
- Thread starter umboma
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http://www.overclockers.co.uk/showproduct.php?prodid=GX-036-KF&groupid=701&catid=1914&subcat=2379
Thats the card I'm looking to SLI.
It's your money and all that, but you aren't getting value for money there.
reason being???
now I'm looking at 7950's damn you lot hehe, it's a shame the 7950 doesnt come with any games like they did a few weeks back otherwise it would be an instant purchase.
I wouldn't pay for the overclock myself, instead I'd get these and manually clock the cards :
http://www.overclockers.co.uk/showproduct.php?prodid=GX-038-KF&groupid=701&catid=1914&subcat=2379
Edit : my only reservation is that these might not be the quietest under load. Depends how sensitive you are to noise.
Best move imo.
it's only a few pound from the ones I linked??, i'm not going to overclock tho, I'd rather just slap it in out the box and play, thats kinda why I was looking at the ones I linked as they have a slight OC and from reviews they are cool and quiet.
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It's based on your reasoning earlier, where you compared the 660s to a GTX680.
Whilst raw performance numbers show that to be the case, there's more to it than that, and basically you will be very hard pushed to get £350 of value out of them cards as they are likely to not last very long.
They have the available GPU performance, but are let down by their weak 192 bit busses, and RAM quantity to a lesser degree.
For example, a 7950 can match and exceed GTX680 performance if you are willing to overclock, whilst not being hindered by a 192bit bus, and possible multi GPU issues that will come up from time to time, like new release games.
This isn't really an AMD/nVidia thing either, I'd say the same to anyone thinking about doing the same with 2x 7850s.
Though 7850s aren't as bad in the regard that they still have a 256 bit bus, but really a 7950 is the most sensible option, or more accurately, a single GPU.
hmmm, I wasnt aware that the 7950 can reach 680 performance, so on that basis you have a really good point, and it works out cheaper then the 660 in sli.. I guess I could also SLI the 7950 at a later date.
Never mind. Thought you trying to keep the cost down a little.
Don't be afraid to overclock, but maybe the cooler on your choice would be better and worth the extra money anyway.
Thought about one of these?
http://www.overclockers.co.uk/showproduct.php?prodid=GX-065-HS&groupid=701&catid=56&subcat=1673
Certainly so. It's not just reaching 680 performance though, they can exceed it, and depending on the circumstances, they can exceed them by quite an amount.
Yes as much as id rather recommend a 'superior' 7970 to you over the 'peasant' 7950, where price vs performance is concerned the 7950 is the better deal.
well i was going to spend £350 on 660 sli, so a 7970 is withing that range, is it a huge difference over the 7950?
Not a huge difference. 5% at matched clock speeds. Your average 7970 will overclock more than your average 7950 but it still comes down to luck of the draw. If money is no object and you want the fastest get the 7970. If you get a 7950 you can save some money and put that towards another 7950 in the future if needs be.
At the same clock speed it's only 5% faster than a 7950. If you're not overclocking the difference is worth the cost difference IMO.
Associate
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192 bits refers to the width of the memory bus ie. it can transmit 192 bits at a time from memory to GPU. The number of times it can do this per second is based on the speed of the VRAM ie. 6GHz.
So a smaller bus is not a problem in and of itself as long as the speed of the VRAM is sufficiently high, thus looking at the bus alone isn't really helpful. This is why we're seeing smaller bus sizes these days, VRAM speed is significantly higher so there isn't a need for a super-wide bus.
Case in point.. old school top end card 8800GTX - 384 bit bus linked to 1.8 GHz VRAM, memory bandwidth = 86.4 GB/s.
GTX680 - only 256 bit bus but 6GHz VRAM, memory bandwidth = 192GB/s.
So a smaller bus is not a problem in and of itself as long as the speed of the VRAM is sufficiently high, thus looking at the bus alone isn't really helpful. This is why we're seeing smaller bus sizes these days, VRAM speed is significantly higher so there isn't a need for a super-wide bus.
Case in point.. old school top end card 8800GTX - 384 bit bus linked to 1.8 GHz VRAM, memory bandwidth = 86.4 GB/s.
GTX680 - only 256 bit bus but 6GHz VRAM, memory bandwidth = 192GB/s.
Someone mentioned a Titan, MAN THE GUNS!
Really, Crysis on max would require some serious power. Perhaps not 2 Titans however.
If you are gaming at 1080p you only need basic AA and slightly lower shadow detail, both which are very taxing on any card.
Really, Crysis on max would require some serious power. Perhaps not 2 Titans however.
If you are gaming at 1080p you only need basic AA and slightly lower shadow detail, both which are very taxing on any card.
Soldato
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http://www.guru3d.com/articles_pages/msi_geforce_gtx_660_twinfrozr_iii_review,24.html
at 4x and 8x AA, the 192bit doesn't seem to hold back 660 SLI
at 4x and 8x AA, the 192bit doesn't seem to hold back 660 SLI