RV740 4770 launch date seem to be set - April 28

[nyker96]

http://www.fudzilla.com/index....view&id=13258&Itemid=1

some initial performance preview:
http://forums.vr-zone.com/news...lmost-fast-4850-a.html

it looks like running at about 90-100% of 4850 speeds. consumes about 80W vs 110W 4850. personally I think they should pull both 4830s and 4850s if this thing launches. they all about the same in performances.

 

[Tempered81]

averages about 92% the speed of a stock 4850. about like a 9800gtx.

Wonder how much ocing headroom the 4770 has?

 

[cbn]

Originally posted by: jaredpace

Wonder how much ocing headroom the 4770 has?

I am hoping the 40nm core has something extra left in it because ATI is already getting 750MHz-850 Mhz out of 55nm.

I think the big question (assuming the 40nm isn't "leaky") is how well the second generation DDR5 Overclocks?

 

[Paratus]

Those graphs are completely f'd up.

However if the 4770 really is almost a 4850 then it really is basically a 9800GTX.

I really like how ATI is under promoting and over-delivering this round.

 

[Jack Flash]

Does it require a 6-pin PCI-e connection?

EDIT: Seems like it. Well, never mind ATI.

 

[cbn]

I think this 4770 may cause ATI to eliminate 4830 and 4850.

 

[bunnyfubbles]

I seriously doubt the 4850 is eliminated by this part, and doubt it will go away until the 4870 does as well (as they are virtually identical other than memory and clock rate) and thus there is little reason for manufacturers to stop producing them. It might be a different story if the 4770 outperformed the 4850, but it defintely doesn't.

 

[cbn]

Originally posted by: bunnyfubbles
I seriously doubt the 4850 is eliminated by this part, and doubt it will go away until the 4870 does as well (as they are virtually identical other than memory and clock rate) and thus there is little reason for manufacturers to stop producing them. It might be a different story if the 4770 outperformed the 4850, but it defintely doesn't.

What if ATI is making more money on HD4770 though?

Also it might be they want to increase the volume of the DDR5 (to reduce costs). Didn't someone in another thread say ATI had some sort of patent on it?

 

[BladeVenom]

LOL. Epic fail in the graph making department.

 

[bunnyfubbles]

Originally posted by: Just learning

Originally posted by: bunnyfubbles
I seriously doubt the 4850 is eliminated by this part, and doubt it will go away until the 4870 does as well (as they are virtually identical other than memory and clock rate) and thus there is little reason for manufacturers to stop producing them. It might be a different story if the 4770 outperformed the 4850, but it defintely doesn't.

What if ATI is making more money on HD4770 though?

ATI might be making more money on it, but board manufacturers might not.

Also it might be they want to increase the volume of the DDR5 (to reduce costs). Didn't someone in another thread say ATI had some sort of patent on it?

That could possibly be another reason to include GDDR5 on a midrange part (other than keeping costs down for board manufacturers with not needing to implement fancy memory architectures), but it doesn't add up to evidence suggesting they're going to eliminate a GDDR3 4850 when they're going to introduce a GDDR3 4750...

 

[nyker96]

Originally posted by: Jack Flash
Does it require a 6-pin PCI-e connection?

EDIT: Seems like it. Well, never mind ATI.

yes, it needs 80W so without the plug you get 75W from the pcie, but that extra 5W has to come from an extra plug. but this means you got juice to oc this card.

 

[nemesismk2]

The RV740 looks impressive but will ATI get the price right

 

[sonoma1993]

im really looking foward to this card. I wonder how it compares to an ATI 3870 which im currently running in my system.

 

[Wreckage]

So this is their response to the GTS250?

 

[SlowSpyder]

Originally posted by: Wreckage
So this is their response to the GTS250?

The GTS250 looks to be a ~$130 card. The 4770 is rumored to be $99, and probably less after a little while on the market/MIR's.

 

[judasmachine]

Originally posted by: sonoma1993
im really looking foward to this card. I wonder how it compares to an ATI 3870 which im currently running in my system.

I'm wondering the same thing. IIRC the 4850 pretty squarely beat the 3870, but in the end not by much. So this 4770 may just barely beat the 3870.

This review is from Tom's so take that for what you may. But I guess the 4770 to be sliding right in between that 3870 and 4850 ~35 max FPS at 1680x1050 without AA. I am just guessing though.

 

[Tempered81]

looks like the 4770 has 800mhz 2nd gen GDDR5. so look for speeds of ~1100-1200 mhz if we're lucky. (4800mhz) That should be nice for boosting the limited 128bit mem interface. The core is at 750. So even for general purpose 40nm process, getting 950mhz out of it might be tough. If the thermals are good and leakage minimal, we might get 900-1000mhz, however I doubt there will be 1Ghz+ core clocks. That will be on the RV870 design.

At 950/4800 i wonder how an oc'ed 4770 will compare to an OC'ed 4830 @ 800/950.

 

[nyker96]

Originally posted by: SlowSpyder

Originally posted by: Wreckage
So this is their response to the GTS250?

The GTS250 looks to be a ~$130 card. The 4770 is rumored to be $99, and probably less after a little while on the market/MIR's.

the benchmark shows it to be close to 4850/512 so it's even kind of close to gts250. with a little rebate, this card would probably be selling in the 80s after MIR while gts250 can be had for about 100-110 MIR. anyways, I expect this card to rearrange pricing of the low end when it is introduced. the gts250s and 9800s will have to feel the pricing pressure now.

 

[AshPhoenix]

I expect it to affect even the HD 4870 prices.

 

[lopri]

Didn't you guys see ATI's .ppf slide? NVIDIA has a special card waiting in the wings - GTS 240.

 

[WaitingForNehalem]

We don't need lower performing cards than what is available. The GTX 275 is stupid. We already had the 280 and 260, then the Core 216. Same thing with the 4830 and 4770. The 4850 just needs a price drop, that's it. We don't need more crippled cards! Instead of producing lower cards, produce better ones for enuthsiast market and put price drops on the older cards.

 

[AstroManLuca]

Yeah, I'm a little disappointed that ATI isn't trying to position the 4770 as a true replacement for the 4850... to do so it would need to show equal or better performance across the board. As it stands, it's equal or slightly worse. So why would you get one when you can already get a 4850 for so cheap? Unless the 4770 is $80 after rebates, it won't be worth it (the 4850 is $100 after rebates).

Ideally I'd have like to see them use the 40nm process used for the 4770 to create, I dunno, a 4860, or something like that. A way to get somewhere between 4850 and 4870 performance in a cooler, cheaper card.

 

[nyker96]

Originally posted by: AstroManLuca
Yeah, I'm a little disappointed that ATI isn't trying to position the 4770 as a true replacement for the 4850... to do so it would need to show equal or better performance across the board. As it stands, it's equal or slightly worse. So why would you get one when you can already get a 4850 for so cheap? Unless the 4770 is $80 after rebates, it won't be worth it (the 4850 is $100 after rebates).

Ideally I'd have like to see them use the 40nm process used for the 4770 to create, I dunno, a 4860, or something like that. A way to get somewhere between 4850 and 4870 performance in a cooler, cheaper card.

i think it's positioned to replace 4830s. but in my opion all three cards are similar 4830/50/4770. so I would just drop the older technology altogether. besides 40nm is cheaper. I recon they might stop making gpus for the older gen as soon as yeild is good for the new process.

i think they might do a 4790 or something to replace 4850s as soon as they can boost the clocks on the 40nm process. how fast? don't know. they in no real hurry, probably cause they got plenty old stock at hand to sell off first. but I heard ati will use 40nm to make their next gen card toward end of this year.

 

[cbn]

Originally posted by: AstroManLuca
Yeah, I'm a little disappointed that ATI isn't trying to position the 4770 as a true replacement for the 4850... to do so it would need to show equal or better performance across the board. As it stands, it's equal or slightly worse. So why would you get one when you can already get a 4850 for so cheap? Unless the 4770 is $80 after rebates, it won't be worth it (the 4850 is $100 after rebates).

Ideally I'd have like to see them use the 40nm process used for the 4770 to create, I dunno, a 4860, or something like that. A way to get somewhere between 4850 and 4870 performance in a cooler, cheaper card.

I would love to see the HD4770 replace the HD4830 and HD4850 and I think it would be a good thing (even if HD4770 is just a hair slower than 4850 @ stock speeds)

This way ATI can sell 4870 512MB cheaper (due to simplified inventory or whatever)

HD4770, HD4870, HD4890 probably makes more sense than having other redundant lower profit margin cards like HD4830 and HD4850 mixed in.

 

[cbn]

http://www.techpowerup.com/916..._Early_Appearance.html