Im expecting a lot from HD 4890 OC.
Printable View
Im expecting a lot from HD 4890 OC.
The numbers are out:
http://www.ocheaven.com/news_view.asp?gid=6754Quote:
The rumors of AMD's RV790 that had been circulating all over the place have finally been confirmed. An HD4890 was unveiled this morning by a big guy in the graphic card industry. Someone was lucky enough to be the first one to test it. However, due to some confidential concerns, they're unable to reveal the physical image of HD4890 just yet. But they did reveal some initial test results.
http://www.ocheaven.com/news_view.asp?gid=8362
Definitely looks like there's "an uncore voltage".Quote:
Originally Posted by STaRGaZeR
Phases on R600 are different than RV790's - from bottom up on R600:Quote:
Originally Posted by fellix_bg
- 6 vGPU phases
- 1 GDDR vDD phases
- 1 GDDR vDDQ phase
From bottom up on RV790:
- 3 vGPU phases
- 2 phases for ??? (clearly detached and controlled independently from vGPU)
- 1 GDDR vDD phase
- 1 GDDR vDDQ phase
Actually no, that's ot what it automatically means.Quote:
Originally Posted by Shintai
It could, but it could also mean it's actually less power hungry.
Like that RV790 was nothing but an overclocked RV770?Quote:
But that was expected.
:horse:
Haha! That was just epic.Quote:
Originally Posted by ColonelCain
:rofl:
ow, so a motherboard with more phases for the CPU will let the CPU consume more power.....Quote:
Originally Posted by Shintai
interesting observation..... :rolleyes:
highly unimpressive :(Quote:
Originally Posted by mastrdrver
There is additional phase components against the top right corner of the GPU, between the memory chip rows. :confused:Quote:
Originally Posted by largon
I think because people are giving such high expectations against the HD4890 it is supposed to be slated for a 20% more performance than the HD4870 but that is still a bit of marketing numbers, a best case scenario.
Well stock clocks mean nothing, if it has better power circuitry it might clock awesome...Quote:
Originally Posted by tenebre
lets hope so! It would be nice!
Oops you are right, t'was too early (08:30) to think clearly...Quote:
Originally Posted by fellix_bg
If you're wondering why the inductors are laid out as 4+2, that's because there are no 6 phase inductor packs on the market. All 6 vGPU phases drain to the same power plane though - unlike those on RV790.
Quote:
Originally Posted by largon
You mean "Vitec"?Quote:
Originally Posted by LightSpeed
And do realize the "Vitec" part is nothing but an inductor. A passive component. And Vitec is only one of the several makers of coupled inductors. Besides Vitec Electronics, atleast CooperBussmann and Pulse Technitrol make them. The PWM itself is still made of Volterra CMOS converters (because nobody else makes them). There's no performance difference between the inductors from different manufacturers.Really? Cause I think they look the same exact Qimonda chips as on RV770. Likely of a higher bin, though.Quote:
the memory chips sure look different,
:stick:
Well, it doesn't look like a paper launch after all.
If that's a retail card why the smudged barcodes?
:stick:
anyone got a barcode reader and want to convert the bars to serial numbers for us?
what would that accomplish? we already know the name of the card and its clocks....Quote:
Originally Posted by Manicdan
Looks like the card was destined to be sold in Canada.
Nice. Any new info on pricing beyond the European links and the conversions?Quote:
Originally Posted by sxs112
Perkam
As close as the 4870 is to the GTX 280/285 in some games, you would have to be insane to pay $400 for the 285 over this card unless you had a specific reason, such as folding, 3D Vision, CUDA, or just going around the forums spamming about how you have the fastest single GPU core even though it makes no intelligible difference in final gaming performance.
If I was Nvidia I would be thinking about a Price drop right about now. I know I personally would already own the GTX285 if it wasn't such a horrid value compared to the 4870.
At 900/1000 the temps are decent at 29% fan speed IMO.
I think that temp is at idle though because the picture showed a 0% gpu load.Quote:
Originally Posted by Eastcoasthandle
I know however, even at that clock rate for both mem and gpu I was expecting higher temps at idle.Quote:
Originally Posted by Mr.BSEL
if this is better then 285 i am buying even though i never would go nvidia
Actually, the 4870 isn't horrible at folding, nets around 4.5K PPD.Quote:
Originally Posted by iandh
I want to see what this card can do! (And, if there is any ground to the improved shader efficiency rumor.)
OT @ iandh: Do you think that your 4870 sinks will fit the 4890? (based on the PCB pics that you have seen).
Anyone else notice that it looks like you could toss an 8pin connector on this PCB? Maybe we'll see some cards with an 8pin connectors on them. That'd be pretty rad for OCing.Quote:
Originally Posted by sxs112
Maybe. However, the reason that there is an 8pin connector is the beta cards used an 8pin+6pin, and retail will use 2x6pin.Quote:
Originally Posted by Soultaker52