HD 4850 Previews

[Lightning_Rider]

When are the HD4870s due to launch anyways? Is it June 25? The way things are looking... I wouldn't be surprised if they end up putting the GTX 260s to shame.

[perkam]

When are the HD4870s due to launch anyways? Is it June 25? The way things are looking... I wouldn't be surprised if they end up putting the GTX 260s to shame.

First week of July.

Perkam

[GAR]

what is the clock difference between the 4850/4870??

[gojirasan]

what is the clock difference between the 4850/4870??

I don't think that is clear to anyone now alive.

I like the anandtech review. Very well written.

[villa1n]

What I was getting at is there are currently no DX10.1 games out if AC is patched of course, which that article makes no mention of. Which makes the post I quoted (you)...well, confusing at minimum, but false for all intents and purposes until someone can find out if the AC game benched in that review is patched or not.

If it isnt patched, I would say that review is garbage and intentionally or not, shows a bias in that game as we all know DX10.1 runs quicker than DX10, and that site SHOULD know that, or at least make a mention of it (if I missed it I apologize).

Its translated so its hard to say. I just assumed 10.1 because of the way 10.1 renders, it can utilize the shader architecture in the ATI card more effectively and thus putting it only 3 frames behind a 280gtx with 16aa/4af on at 1280...which seems no small feat, even at 1650 rez it keeps within a few frames, and leaves the 9800gtx behind. This seems like a prelude for things to come, as 10.1 and 11 directX will be adopted by new games.

[informal]

20% on the core clock(750 vs 625Mhz) and double on the aggregate bandwidth,thanks to GDDR5(works @900Mhz).

[Unbornchild]

what is the clock difference between the 4850/4870??

625 vs 750
http://www.extremetech.com/image_pop...ID=1017,00.asp

[jas420221]

Its translated so its hard to say. I just assumed 10.1 because of the way 10.1 renders, it can utilize the shader architecture in the ATI card more effectively and thus putting it only 3 frames behind a 280gtx with 16aa/4af on at 1280...which seems no small feat, even at 1650 rez it keeps within a few frames, and leaves the 9800gtx behind. This seems like a prelude for things to come, as 10.1 and 11 directX will be adopted by new games.

Yeah, I just want some clarity. If it ISNT 10.1 then wow on the couple fps it adds to the results already!

And as far as 10.1 and especially DX11 you will be waiting quite a while before even a few games release with it. Expect 09 AT LEAST for 10.1 games to BEGIN to saturate the market, and DX11....why are we talking about that again? Thats like a 2010 release (with windows 7?) and games picking up on that surely isnt until 2011.

[ryboto]

http://www.anandtech.com/video/showdoc.aspx?i=3338

anandtech just put theirs up

they seem a bit more cautious about the NDA than other sources who actually listed the TMUs and other specifications of the architecture.

And he needed a 12kW PSU for just 2 4850's? That's a little ridiculous. Excessive PSU hype much?

[MotF Bane]

they seem a bit more cautious about the NDA than other sources who actually listed the TMUs and other specifications of the architecture.

And he needed a 12kW PSU for just 2 4850's? That's a little ridiculous. Excessive PSU hype much?

Yeah, that's a little odd. They claim issues on their 1000W, and then post total system load of 335 watts.

[ryboto]

There's a lot of information over at Extreme Tech regarding the new architecture. Apparently it isn't just a RV670 with more shaders, it's been redesigned a bit.

[gojirasan]

And he needed a 12kW PSU

OMG! Who makes a 12kW PSU? Talk about overkill.

[bill_d]

There's a lot of information over at Extreme Tech regarding the new architecture. Apparently it isn't just a RV670 with more shaders, it's been redesigned a bit.

more like alot

[STaRGaZeR]

OMG! Who makes a 12kW PSU? Talk about overkill.

1.2

[[XC] 2long4u]

OMG! Who makes a 12kW PSU? Talk about overkill.

I think that should be 1.2kW

[cegras]

I triple-taked just to make sure Anand was claiming PSU problems with his 1Kw EliteXStream running GTX280 SLI.

I wasn't wrong.

[annihilat0r]

As always, Anandtech gives the deepest and the best comments to the benchmark scores.

[STaRGaZeR]

As always, Anandtech gives the deepest and the best comments to the benchmark scores.

You're joking right? Anand is not bad at all, but it's FAR from being the best in something.

[onethreehill]

When are the HD4870s due to launch anyways? Is it June 25? The way things are looking... I wouldn't be surprised if they end up putting the GTX 260s to shame.

A local distributor in Singapore said is arriving next week
http://forums.hardwarezone.com.sg/sh....php?t=2001178

[eleeter]

Yeah, that's a little odd. They claim issues on their 1000W, and then post total system load of 335 watts.

Something is more than odd with Anandtech in their testing at times. They appear to have used the same PS for the Nvidia reviews as well and had shut down problems. Maybe the power supply is bad guys, use a different one?

But then again this is the same site that somehow blew up several 780G motherboards, and tried to rig an Opteron server to do game testing, then complained how poorly it performed. Actually didn't they end up killing that server, as in totally dead?

[ceevee]

I still don't understand why people compare two GPUs to one GPU and act like this is somehow an equal comparison.

Why don't you compare two GPUs to two GPUs?? Of course AMD will look better when you compare two to one.

Does AMD have a solution to beat two 280GTX in SLI that I can buy any time soon?

Will two 4870 in crossfire beat two 280GTX in SLI? I seriously doubt it.

[ceevee]

Something is more than odd with Anandtech in their testing at times. They appear to have used the same PS for the Nvidia reviews as well and had shut down problems. Maybe the power supply is bad guys, use a different one?

But then again this is the same site that somehow blew up several 780G motherboards, and tried to rig an Opteron server to do game testing, then complained how poorly it performed. Actually didn't they end up killing that server, as in totally dead?

I agree Anandtech's testing has been horrible recently. There Nehalem preview was terrible and this 4850 review is terrible.

How can you say two 4850 in Xfire has the ultimate performance crown when you do not even consider two 280GTX in SLI???

Why not compare two GPUs to two GPUs??

Not to mention that they show clearly that crossfire doesn't even work in half of the games!

[eleeter]

I still don't understand why people compare two GPUs to one GPU and act like this is somehow an equal comparison.

Why don't you compare two GPUs to two GPUs?? Of course AMD will look better when you compare two to one.

Performance/watt/price is what matters, not the actual configuration of the hardware.

[DarkDisciple]

Do you really need the output of a gtx 280? The 4870 will come fairly close to the 280, and for $300 less.

[eleeter]

How can you say two 4850 in Xfire has the ultimate performance crown when you do not even consider two 280GTX in SLI???

They would probably blow up the lab trying such a thing knowing them.

Although GTX280x2 is going to pull some serious power from the wall, as will a 4870x2 times 2 in fact most likely even more.