AMD To Launch Radeon HD4890 "RV790" In April

[swale]

X2 Will be a stormer!!!!

[IronWarrior]

X2 Will be a stormer!!!!

Indeed, where is it already?

[OBR]

20 percents higher frequency is not 20 percents higher performance ...

[Shintai]

In marketing: CoreΔ%+MemoryΔ%=PerformanceΔ%

[RPGWiZaRD]

This card is very interesting to me if not only the clock speeds have changed cuz price/performance ratio is really good if could perform around GTX 285 levels but at 199 ~ $249. However if it's only clock speeds upped I wouldn't pick it up but I'd gladly try an ATI card for a change though.

[gOJDO]

20 percents higher frequency is not 20 percents higher performance ...

If the rest of the hardware is not bottlenecking the graphics card and if you raise all the clocks (on the graphics card) linearly for 20% then the card will perform exactly 20% faster.

[LordEC911]

If it has 800SP's then it is going to be 8~13% faster depending on game and settings, sometimes maybe less. But if it has 1000SP's like numerous rumors were indicating then it is going to be up to 40% faster. So in such case 20% in average makes sense.

Anyway, I won't believe in anything about the future ATi graphics cards until I have them in my hands.

They cannot create a shader core with 1000SPs. It is 960 or 1040SPs.

20 percents higher frequency is not 20 percents higher performance ...

In marketing: CoreΔ%+MemoryΔ%=PerformanceΔ%

Look who showed up to crap on the thread...

[rogueagent6]

In marketing: CoreΔ%+MemoryΔ%=PerformanceΔ%

Just like the complete dominance of nvidia in 2008?

[Helmore]

I have a feeling that we are being mislead and there is more to this chip than thus far speculated. I don't expect a surprise as big as RV770 though, the chip is still based on the same underpinnings as RV770 after all.

What's with the Shintai bashing? He's only making a simple joke.

[OnLine]

In marketing: CoreΔ%+MemoryΔ%=PerformanceΔ%

(CoreΔ%+MemoryΔ%)/2=PerformanceΔ%

... should be true though (assuming RAM, framebuffer, CPU & drivers isn't a bottleneck).

Anyway, currently owning a HD4850 512MB @ 800/1150 I see nothing interesting in this card, unless # of SP's gets a bump too from 800 to 960 or so. But I guess this card isn't meant for me.

[informal]

Just like the complete dominance of nvidia in 2008?

Don't forget he also said that there will be no L3 cache in Nehalem

As for the RV790 ,it may very well be a tuned up R770,with a bit more shader/tmu power and higher clocks.This combination can net 20% over RV770 easily.

[OnLine]

Um isnt the 4850 memory starved. Even with your core at 800, your still low on memory bandwith compared to the other cards. Like you assuming it isnt a bottleneck which clearly the 4850 has been proven to be.

My 4850 is at 750/1100 and i cant wait to get off it. Its to slow.

If You think HD4850 is too slow, then You obviously bought the wrong card!
HD4850 is nothing but a well balanced $150 gaming card and won't cut it at high res AA gaming in newer games.

I usually game at lower resolutions (1600x900 is my prefered res) without AA.
HD4850 512MB handles it just fine.

HD4890 with 100(+)GB/s mem bandwidth & 1GB framebuffer def needs to offer more than 850MHz on the core to make me wanna buy it. 960 SP's would be nice.

[trinibwoy]

20% faster than 4870 - which would put it on par roughly with the 285 - the competition would obviously be on the price front.

It serves a very good purpose though. Nvidia's been the one with the slew of new product launches recently. Not to mention the additional free marketing due to the uproar over all the renaming. AMD needs something new to show off and if they can match GTX 285 performance for $300 it will be a coup all around.

[grimREEFER]

well, we are only a few months away from dx11 cards though, arent we

[Glow9]

Only 20% faster than the 285... no way that will compete head on. Price maybe, but not for sheer performance. But I bet it will overclock like crazy!

280 to 285 is 20% more or less so why not?

[ex2cib]

so, is this just a clock speed increase only?

if yes, my 4870 can already do those speeds easily. just need to get better cooling on it

[Nomadsoul]

hmmm we can always buy Sapphire Toxic 4870 780/1000 185$ on Newegg.

[Telperion]

Most heatsinks and im betting your's only touch the core. The stock AMD heatsinks cool the memory and the mosfets. If you havent noticed and i belive this is one reason why they are a little warmer

My HIS 4850 was a reference cooler and still ran 5-6C hotter memory.



That's the 4870 being used now that I pulled the screenshots from. Gaming load is 55C at 45% fan which is inaudible over my case fans. ATI's reference cooler unfortunately is just not that great -- it could be, but it doesn't deliver.

[Morais]

How did you measured the memory temperature?

[eddieobscurant]

I can't, and i don't want to believe that the only thing amd thought for the past 9 months (since the release of 4800series) was 100mhz core and 75mhz memory boost.

[Hornet331]

Look who showed up to crap on the thread...

Just like the complete dominance of nvidia in 2008?

Don't forget he also said that there will be no L3 cache in Nehalem

What's with the Shintai bashing? He's only making a simple joke.

exactly, that and nothing more.

@card

if it dont offers more sps/tmus im not intressted, my 4870 runs @840/1100 24/7

[RPGWiZaRD]

well, we are only a few months away from dx11 cards though, arent we

Yes we may be a few months (more like a half year+) away from DX11 cards but we're maybe a few years from proper DX11 support in games. Just about now the DX10 support is gaining importance.

If you feel like paying a price premium for the unapproved entry DX11 cards be my guest, I feel like spending my money on mature DX10 card, GT212 or the RV790 or other possibly upcoming ATI card releases being my top contenders for next upgrade.

Don't get me wrong, these entry DX11 cards could be very good too (maybe another "8800GTX") but I don't like gambling and the odds are on my side in the long run if choosing the just-b4-newgen-series cards.

(sorry for my slightly sarcastic tone in the post, couldn't resist)

[Shintai]

Ye, DX11 cards are very far away it seems. GPU sales already dropped 37% for AMD and atleast 40% or more for nVidia in Q4. Q1 will only drop further so we are down to way below 50% of the normal. Q2 will be the same, Q3. DX11 is Q4 or 2010. Not to mention that TSMCs 40nm node problems, aswell as TSMC is in utter disaster with some 60% decline for Q1.

Even Intel went with value/mobile as a priority over servers, highend etc for 32nm.

Each company tries on its own to survieve in these struggling times. Technology is just a luxory good. Something that gets axed as the first victims along with caffe late and crapple

[xman01]

i don't understand why ppl still flaming the stock hsf on a 4870, as though it can't cool the card and it overheats and artifacts
[IMG] [/IMG]

as for the 4890, not sure if it's worth it for me, although i did pay 280 after tax for the 4870

[Telperion]

45C idle means next to nothing. My 4850 would idle at 45C but that sure didn't stop it from hitting 83C load.