Ati Hd4730 512mb Gddr5

[onethreehill]

I just received this in my mailbox...




Marketing name PCS HD4730 512MB GDDR5
Model name R77F-CE3
Memory interface 128Bit
Core/Mem 700MHz/900Mhz (3.6Gbps)
EAN Code AX4730 512MD5-P / 4712505024219
Output Dual DVI + TV-Out
Cooler ARCTIC COOLING 2 slots Fansink

http://forums.hardwarezone.com.sg/sh....php?t=2374470

[Smartidiot89]

So there is no HD4750 GDDR3?

This is really confusing and the specs are so close to HD4770

[Spectrobozo]

this card have the rv740 with locked SMIDs? if that is not the case, than this is very strange, with just 50mhz less on the core and 100mhz more on the memory... and 2 power connectors!?
or this thing uses the rv770? rv730!?

[Macadamia]

EDIT: Screw it.


I think this is a 640SP version of RV770 (4850/70) with crippled memory bus, clocked at 700Mhz. But it uses GDDR5 so that's handled.


If it's what I speculated, it MIGHT need the second power connector, but will be closer to the 4870 than the 4770.

[oohms]

this card have the rv740 with locked SMIDs? if that is not the case, than this is very strange, with just 50mhz less on the core and 100mhz more on the memory... and 2 power connectors!?
or this thing uses the rv770? rv730!?

Ditto.. what the hell?

I swear this is a very late april fools joke

(or the pic and the specs are wrong)

[_d_]

Ditto.. what the hell?

I swear this is a very late april fools joke

(or the pic and the specs are wrong)

i think so

[Smartidiot89]

this card have the rv740 with locked SMIDs? if that is not the case, than this is very strange, with just 50mhz less on the core and 100mhz more on the memory... and 2 power connectors!?
or this thing uses the rv770? rv730!?

Didn't notice the second power-connector.

And no way, in hell it needs 2. HD4850 only require 1x6-pin

This smells like uber fake, photoshop or else AMD has a big screw loose

[Mats]

Could it be one of those flash-BIOS-at your-own-risk-get-better-performance-cards that sometimes shows up at the end of a product cycle?
I can't remember which card I'm thinking of, but it was a X1000-series or older.

[ToTTenTranz]

Yep, secondary power connector makes no sense at all, wether it's a crippled RV770 or a downclocked RV740.


I would expect a card called HD4730 to be a single-slot card with GDDR3 memory and no power connectors at all.

[Smartidiot89]

Yep, secondary power connector makes no sense at all, wether it's a crippled RV770 or a downclocked RV740.


I would expect a card called HD4730 to be a single-slot card with GDDR3 memory and no power connectors at all.

My guess is someone used abit to much of "the good stuff"

[Mats]

I think the PCB layout can give us a hint. It looks identical to one of their 4870 except for the heatsink. Still my bet: New BIOS and you've got a 4870 and voided warranty! Missing component behind the lowest cap tho.

[Manicdan]

how do they go from 256bit to 128bit memory with just a different bios

[Mats]

how do they go from 256bit to 128bit memory with just a different bios

Oops, missed the 128-bit part.

[Macadamia]

how do they go from 256bit to 128bit memory with just a different bios

HD 3850 vs HD 3690 (China)



also note the absence of memory chips. Half the bus is empty.

[ToTTenTranz]

how do they go from 256bit to 128bit memory with just a different bios

They take away half the memory chips of a 1GB card and there's your HD4730. It shouldn't be that hard on an engineer's perspective.

[Mats]

also note the absence of memory chips. Half the bus is empty.

How can you see that from this angle? The upper row is covered by the HS, and the column is there, or at least the lowest chip. Compare with the lower left here.

[Mungri]

Apparantly it is just meant to be a 55 nm 4830 with 128 bit GDDR5 instead of 256 bit GDDR3.

This Powercolor version looks like an overclocked PCS+ .

[spursindonesia]

Hmm, in RV 770, buswidth is tied with the ROP group, right ? So, with 128 bit, instead of 16 ROPs, you've got yourself a royally castrated 8 ROPs GPU card, a weeny bit stronger than HD 4670, with double the SPs, but same TMUs (32) and ROPs (8). Bandwith is certainly better with GDDR5.

[Mats]

Apparantly it is just meant to be a 55 nm 4830 with 128 bit GDDR5 instead of 256 bit GDDR3.

Yeah well we all know that, but it still doesn't explain the 2x6 power connectors.

[01Lude]

The situation right now seems a little unfavorable for AMD as the Radeon HD 4770 stocks ran dry the moment the cards hit the market. Switching over to Radeon HD 4850 and HD 4830 might help a little but it seems HD 4830 stocks are running dry too.

As such, AMD is planning on releasing a new Radeon HD 4730 card into the market. However, this card isn't based on the 40nm RV740 part but the 55nm RV770. In fact, it is a strip down version of the HD 4830 (RV770LE) codenamed RV770CE but boosted with GDDR5 memories. However, you may not be seeing mass availability as it is only available in limited quantities for certain regions whose HD 4830 stocks have ran dry.

Pricing is unclear yet but it is certainly going to be cheaper than the current HD 4830 cards out there. If you do a search in VR-Zone shopping portal, you will find that HD 4830 cards are selling for US$90.

http://vr-zone.com/articles/first-ra....html?doc=7071

[Macadamia]

Ohshat, I didn't crosreference. I thought there were GDDR5 chips on the left of the GPU. My bad.

Yeah well we all know that, but it still doesn't explain the 2x6 power connectors.

700Mhz core clock.


Keep in mind that 4870 is 750 + GDDR5. This perhaps comes close in power usage, but at low resolutions it should be a beast if 640SP is true.

[G0ldBr1ck]

Hmm, I think I would take 4730 over a 4830. thats just wierd

Seems Rv770 yields might not have been that good. obviously they would have just made more 4830's with these if they were able to.

[ubuntu83]

Fuad has something to say about it:

We've learned that one of ATI's problems with 40nm RV740 yields is the target clock speeds. It is not the case that most of the GPUs comes faulty but only a limited number can meet quality requirements for a 750MHz core clock, something that ATI targets for Radeon HD 4770.


Our sources have confirmed that the new card based on RV740 is Radeon HD 4730, and that this card, clocked at 700MHz, should be widely available. With this speed, ATI should be able to outrun Geforce 9600GT 512MB but it might lose against Geforce 9800GT or come really close.

Source : Fudzilla

But the two 6 pin PCI-E connectors what are they for?

[Tuvok-LuR-]

Fuad has something to say about it:



Source : Fudzilla

But the two 6 pin PCI-E connectors what are they for?

That's usual fuad bs...the double connector and the pcb prove that it's rv770 without any doubt.
Regarding the rv740 yield problems being related to frequencies, I don't buy it too, how come the good cores hit almost 1 ghz on overclock and the bad can't run at 750?

Peraphs there's some truth anyway, 4730 might switch to rv740 once rv770 supplies dry out

[Nedjo]

HD 4770 effectively killed GF 9800GT, and this beauty will kill GF 9600GT!