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Radeon HD 4750 40nm RV740 tested [Guru3D]
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Default Radeon HD 4750 40nm RV740 tested [Guru3D] - 02-25-2009, 14:30 | posts: 6,462

Exclusive: Radeon HD 4750 RV740 - 40nm preview Guru3D.com today has a special and exclusive preview read for you guys. It's the worlds first article on a 40nm based graphics card it embeds the RV740...

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Default 02-25-2009, 14:37 | posts: 3,048

omg HOW DO THEY DO IT?

Wait, this thing outperforms the 4830...They've screwed up the numbering scheme the bastards.

Last edited by Iarwain; 02-25-2009 at 14:39.
   
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Default 02-25-2009, 14:38 | posts: 17,954 | Location: Coldwells,UK

Its a HD4830 with 40nm & GDDR5 NICE

the price should be decent.
   
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Default 02-25-2009, 14:39 | posts: 13,653 | Location: Devon, In A Little Town.

Very nice, would be good to get an official figure for the price (unless the $100 estimate is..).

Would a be a nice upgrade if I had a crossfire supporting board.
   
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Default 02-25-2009, 14:43 | posts: 5,993 | Location: Middlesbrough, England

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Originally Posted by Iarwain View Post
omg HOW DO THEY DO IT?

Wait, this thing outperforms the 4830...They've screwed up the numbering scheme the bastards.
Its not actually called the 4750, that was hilbert's "codename"

By numbering scheme, you'd have to call it the 4840
   
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Default 02-25-2009, 14:46 | posts: 26,671 | Location: Hampshire, UK

What a sweet card for a great price!
   
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Default 02-25-2009, 14:47 | posts: 3,048

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Originally Posted by Passion Fruit View Post
Its not actually called the 4750, that was hilbert's "codename"

By numbering scheme, you'd have to call it the 4840
Oh thank god.

4840 sucks though. Let's go Nvidia and call it a 4830+ GTX GTS +++-=?
   
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Default 02-25-2009, 14:53 | posts: 11,993 | Location: new jersey

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Originally Posted by aircool View Post
Very nice, would be good to get an official figure for the price (unless the $100 estimate is..).

Would a be a nice upgrade if I had a crossfire supporting board.
nah your 96gt its about the same performance wise,if you had a 86gt it would be worthwhile.
i highly dougt your getting that cooler on referance thuo....
   
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Default 02-25-2009, 14:56 | posts: 13,653 | Location: Devon, In A Little Town.

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Originally Posted by cowie View Post
nah your 96gt its about the same performance wise,if you had a 86gt it would be worthwhile.
i highly dougt your getting that cooler on referance thuo....
Erm not quite, If you read what I wrote (referring to the crossfire motherboard) you'll see I'd pay a small sum for some nice crossfire action.
   
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Default 02-25-2009, 15:20 | posts: 11,993 | Location: new jersey

oh
cf with these cards would not be too smart when you can get 4870 for under 200usd the 4870 would be faster at higher rez also.
   
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Default 02-25-2009, 15:30 | posts: 3,642 | Location: Poland

omg this looks nice if the price will be decent

edits: less than 100 USD.

This will be a hit.

Last edited by kapu; 02-25-2009 at 15:36.
   
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Default 02-25-2009, 15:33 | posts: 3,048

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Originally Posted by cowie View Post
oh
cf with these cards would not be too smart when you can get 4870 for under 200usd the 4870 would be faster at higher rez also.
No it wouldn't, two of these would be a -lot- faster than a 4870.
   
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Default 02-25-2009, 15:37 | posts: 3,642 | Location: Poland

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Originally Posted by cowie View Post
oh
cf with these cards would not be too smart when you can get 4870 for under 200usd the 4870 would be faster at higher rez also.
Two of these would beat HD4870 by huge margin imo.
I can even guess powerconsumption wouldnt be much higher and heat would be very low . And actualy we can guess that this card will OC like mad.
Two of these might actualy come close to GTX280 ...
   
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Default 02-25-2009, 15:45 | posts: 8,110 | Location: United Kingdom

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Originally Posted by kapu View Post
Two of these would beat HD4870 by huge margin imo.
I can even guess powerconsumption wouldnt be much higher and heat would be very low . And actualy we can guess that this card will OC like mad.
Two of these might actualy come close to GTX280 ...
I disagree, it's a lower end card designed for lower resolutions, in crossfire that won't change as even with Gddr5 it'll still be memory bandwidth bottlenecked at higher resolutions due to having a 128bit bus.
   
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Default 02-25-2009, 15:53 | posts: 3,048

The card in the review is even faster than the current 4830. And two 4830s in crossfire wipe the floor with the 4870

Even at the insane resolution of 2560x1600 it is only a couple frames, or about 10%, behind the 4850.

EDIT: Two 4830s actually beat a GTX 280 in some cases.

http://www.hexus.net/content/item.php?item=16300&page=5

Last edited by Iarwain; 02-25-2009 at 15:56.
   
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Default 02-25-2009, 15:55 | posts: 5,857 | Location: Montreal

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Originally Posted by BlackZero View Post
I disagree, it's a lower end card designed for lower resolutions, in crossfire that won't change as even with Gddr5 it'll still be memory bandwidth bottlenecked at higher resolutions due to having a 128bit bus.
Don't think you need more then this for low rez .... or do you ..... (someone's going to 3-way crossfire it anyway and you know it)
   
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Default 02-25-2009, 15:57 | posts: 13,653 | Location: Devon, In A Little Town.

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Don't think you need more then this for low rez .... or do you ..... (someone's going to 3-way crossfire it anyway and you know it)
Depends how you define low res really.
   
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Default 02-25-2009, 15:59 | posts: 3,048

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Don't think you need more then this for low rez .... or do you ..... (someone's going to 3-way crossfire it anyway and you know it)
I'll 3 way it.
   
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Default 02-25-2009, 16:09 | posts: 8,110 | Location: United Kingdom

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Originally Posted by Iarwain View Post
The card in the review is even faster than the current 4830. And two 4830s in crossfire wipe the floor with the 4870

Even at the insane resolution of 2560x1600 it is only a couple frames, or about 10%, behind the 4850.

EDIT: Two 4830s actually beat a GTX 280 in some cases.

http://www.hexus.net/content/item.php?item=16300&page=5
The 4830 has higher memory bandwidth than a '4750', and not all games will be memory bandwidth limited at higher resolutions (such as call of duty). Why would you only want to play some games at higher resolutions when you can get a single card that will play most games fine.
   
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Default 02-25-2009, 16:12 | posts: 91 | Location: Arizona

Two 4830 512mb's beat a 4870 1gb I was going to get a couple of 4830's for my build coming up in April but I think I'll go with these RV740's in crossfire instead. I am more than surprised that these beat the 4830. Consider my mind blown.
   
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Default 02-25-2009, 16:25 | posts: 435 | Location: Kent - England

I think ATI have made a smart move here, the current economic climate means that the enthusiast market is shrinking so hitting the mainstream with a product that can play a game with all the eye candy on a 19 or 22" screen will certainly get OEM's like dell signed up. I'm afraid to say its all about volume in 2009 and not about who has the fastest GPU, these companies need to make money to survive not live on bragging rights for our small enthusiast market.

The interesting thing I've noticed is that for once hardware appears to be coping easily with new games (apart from Crysis but we all know about this piss take), I wonder if software dev's are getting lazy and not interested in pushing the technology boundary forward....hmmm a debate could be made of this ;-)
   
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Default 02-25-2009, 16:33 | posts: 3,048

Quote:
Originally Posted by BlackZero View Post
The 4830 has higher memory bandwidth than a '4750', and not all games will be memory bandwidth limited at higher resolutions (such as call of duty). Why would you only want to play some games at higher resolutions when you can get a single card that will play most games fine.
Apparently no games will, since this card beats the 4830 in every game in the review posted here. Even at resolutions no one games at yet.
   
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Default 02-25-2009, 17:13 | posts: 11,993 | Location: new jersey

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Originally Posted by noteleet View Post
Two 4830 512mb's beat a 4870 1gb I was going to get a couple of 4830's for my build coming up in April but I think I'll go with these RV740's in crossfire instead. I am more than surprised that these beat the 4830. Consider my mind blown.
well i stand corrected then
i see it but still dont believe it
my 4850's did not scale that well
   
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BlackZero
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Default 02-25-2009, 17:19 | posts: 8,110 | Location: United Kingdom

Quote:
Originally Posted by Iarwain View Post
Apparently no games will, since this card beats the 4830 in every game in the review posted here. Even at resolutions no one games at yet.

Every single test, bar one, was run at a max resolution of 1920x1200 , with this card scoring, on average, in the mid 20's, and at all resolutions within a frame or two of the 4830 even though it has a 20% higher Math processing rate.

Seeing as the card can't manage more than an average fps in 20's at 1920x1200, the memory bandwidth won't be that significant, not until you try to crossfire two (3?) of these; which, incidently, is what is being discussed here.

And if you think people don't game at 1920x1200, you have lost touch with the current enthusiast market; who are the people that would even consider running cf/sli, in fact a recent poll in the gaming section showed that the overwhelming majority of Guru3d members are running a resolution of 1680x1050 or above. I take it you are still running 1280x1024, in which case even two of these cards would be a waste let alone 3.

edit: ok most games were run at 2560x1600, still doesn't make a big difference to the average fps at high resolutions.

Last edited by BlackZero; 02-25-2009 at 17:28.
   
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Default 02-25-2009, 17:36 | posts: 6 | Location: Michigan

Can't you give us a teaser about power consumption?? That's the main thing I wanted to see haha
   
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