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ATI Radeon HD 5870 and 5870 X2 specifications leaked

I hope those are fake... 1200 ALUs will get pulverized by the 512 shaders of the speculated GT300 (based on todays 800 vs 240 state), at least in current (ie. non DX11) things. No idea about native DX11 stuff. Since both things are based on "leaks" and are speculation, I guess my view is as good as any 😛 I really hope the next ATi card comes out with at least 2000 ALUs.
 
I upgraded my computer and all I need is a new video card. I have an ATI X1900 and patiently waiting for a DirectX 11 card. Looking forward to the reviews of the 5000 series. I know the games supporting DirectX 11 will not show up until probably next year but just want to make sure I have a card that supports it.
 
Well, if you're waiting for games that will show up next year and the nVidia card will be here before then, why not wait for it then to see what's faster and better? Since you've been waiting that long, you might wait a few more months... to see the DX11 cards from both camps.

As for me, I got what I need (even more than needed=. I won't be buying PC games any more (mostly due to the exclusive DLC which annoys me as hell). And since I have a X360 Elite, I will buy games for it.
 
Originally posted by: Qbah
I hope those are fake... 1200 ALUs will get pulverized by the 512 shaders of the speculated GT300 (based on todays 800 vs 240 state), at least in current (ie. non DX11) things. No idea about native DX11 stuff. Since both things are based on "leaks" and are speculation, I guess my view is as good as any 😛 I really hope the next ATi card comes out with at least 2000 ALUs.
Click to expand...

All depends on price. If its ~$200-300 vs. $600 again, ATI really doesn't have much to worry about, especially if they are first to market.

Also, the fillrate and FLOPs numbers suggest a significant boost in performance, so even if that isn't enough, the X2 cards should be more than enough to compete with nVidia's top offering
 
Originally posted by: Qbah
I hope those are fake... 1200 ALUs will get pulverized by the 512 shaders of the speculated GT300 (based on todays 800 vs 240 state), at least in current (ie. non DX11) things. No idea about native DX11 stuff. Since both things are based on "leaks" and are speculation, I guess my view is as good as any 😛 I really hope the next ATi card comes out with at least 2000 ALUs.
Click to expand...

Yea, I hope this is another leak like what we heard about the RV770 (480SP). If these leaks are accurate (probably not) than the GT300 will be the be a much faster chip I would imagine. I guess we don't know clock speeds though. Meh, who knows. 😛
 
the problem with current ATI ALU count is it's technically 160X5=800, with ALU clusters of 5 each. This means that in the difference between a code that's optimized to run on the cluster-type ALU vs a code that is not optimized, the performance of ATI's 48XX is either the same as 160 of GT200's shaders or could scale to 800 ALU equivalent. Assuming 4870 has roughly the same performance as a GTX280 we can say that for every 240 ALU operations of Nvidia's archie, ATI's 160 ALU clusters scales to about 1.5 ALU operations per cluster. so one ATI ALU cluster (X5) can do 50% more than an Nvidia single ALU, but is billed as being 5 ALU instead of a single 5x cluster. Another way of looking at is is Nvidia's ALU is more than 3X as efficient as ATI's ALU if we took the ALU count at face value.

Depending on how ATI defines 1200 ALUs in HD5870, it could either be the same X5 cluster type as HD4XXX or perhaps redesigned to be more like Nvidia's GT200 series. I'm hoping for the latter. At max I'd like to see smaller clusters of maybe 2 or 3 ALUs (600X2 or 400X3 ALUs) which would probably fare better against Nvidia's offering.

Edit:
12 SIMD groups with 100 cores each [20 "5D" units]
Click to expand...

so I guess ATI is sticking with its X5 cluster type ALU count. This is dissapointing... Even assuming similar performance-per-ALU today, that would only scale to 360ish ALUs for Nvidia.

On the plus side, ATI is doubling the ROP count to 32, up from 16, so it remains to be seen the performance improvement due to that...
 
Originally posted by: dflynchimp
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I think AMD's approach is ok if they keep their current SP set up. They are far less efficient SP to SP than Nvidia, but it seems like AMD can fit a lot of them in their silicon... look at the difference in die sizes. The 4890 is 90%+ as fast in general as a GTX285 with a die that is somewhere close to half the size of the GTX285. I would imagine if AMD made a biggish chip with their current x5 cluster approach they could have a very competitive part if they can get the clock speeds they want.
 
Originally posted by: bunnyfubbles


All depends on price. If its ~$200-300 vs. $600 again, ATI really doesn't have much to worry about, especially if they are first to market.

Also, the fillrate and FLOPs numbers suggest a significant boost in performance, so even if that isn't enough, the X2 cards should be more than enough to compete with nVidia's top offering
Click to expand...

Frankly I really hope it's going to be weaker then what Nvidia's top dogs will be. What happened with this generation was very convenient for me and I hope to see it repeating again. I'm not one of those that have the capabilities to spend 600$ for a videocard, so I just want a strong 5870, maybe 50% faster then 4870, with a good price.
 
Originally posted by: Qbah
I hope those are fake... 1200 ALUs will get pulverized by the 512 shaders of the speculated GT300 (based on todays 800 vs 240 state), at least in current (ie. non DX11) things. No idea about native DX11 stuff. Since both things are based on "leaks" and are speculation, I guess my view is as good as any 😛 I really hope the next ATi card comes out with at least 2000 ALUs.
Click to expand...

You know, people thought the NV30 was going to beat the R300 when looking at specs of the two chips.

The Stream Processor cores aren't the only story here. The texture fillrate is approaching a 2x performance increase and the pixel fillrate exceeds a 2x performance increase. Looks like a solid GPU to me.

Besides this, AMD has stated some time ago that they are now focused on making extremely good value "pretty good" performance level chips instead of huge, bulky, and inefficient monolithic giants. They will use X2 configurations to deal with the ultra high end. These cards will likely be very good when it comes to a price vs performance aspect.
 
Originally posted by: Qbah
Well, if you're waiting for games that will show up next year and the nVidia card will be here before then, why not wait for it then to see what's faster and better? Since you've been waiting that long, you might wait a few more months... to see the DX11 cards from both camps.

As for me, I got what I need (even more than needed=. I won't be buying PC games any more (mostly due to the exclusive DLC which annoys me as hell). And since I have a X360 Elite, I will buy games for it.
Click to expand...

Before I upgraded, I was using a Pentium D 920. LoL! I was trying to be patient waiting until the DX11 cards were out for my new build but couldn't. Also, I finally replaced my 9 year old monitor for an Acer H243Hbmid only because the screen started showing lots of noise and turning off/on intermittently. It was about to die. I know. It's pathetic using an ATI X1900 on my new build but just need to wait a few more months and hopefully I will only need to upgrade my CPU maybe 3 years from now.
 
Originally posted by: Qbah
Well, if you're waiting for games that will show up next year and the nVidia card will be here before then, why not wait for it then to see what's faster and better? Since you've been waiting that long, you might wait a few more months... to see the DX11 cards from both camps.

As for me, I got what I need (even more than needed=. I won't be buying PC games any more (mostly due to the exclusive DLC which annoys me as hell). And since I have a X360 Elite, I will buy games for it.
Click to expand...

traitor :|
 
ATI ending up with a slightly slower, lower priced card, is the best thing that can happen for the consumer.

If ATI and nvidia perform equally, we end up with two $599 dollar cards.
If ATI slightly beats nvidia we end up with two $599 cards, remember GeForce 6800 anyone?
If ATI performs slightly worse than nvidia, we end up with a $300 card that drives down the $599 card.

So nvidia having the absolute fastest single GPU, and ATI catering to the performance/value segment is the best thing. And that's what looks like if those specs are right, the 5870 will end up slower than the top GT300 sku, while the 5870X2 will be the fastest card on the market until nvidia comes out with a dual GT300 card. History repeats itself.
 
Originally posted by: Qbah
I hope those are fake... 1200 ALUs will get pulverized by the 512 shaders of the speculated GT300 (based on todays 800 vs 240 state)
Click to expand...

That is probably very true but considering the 40nm HD4770 has a die size actually smaller than HD4670 I'll bet this GPU will be pretty cheap to make. In fact, it might even have a smaller die size than HD4870/90.

Power consumption might be pretty good too.

Maybe AMD is planning on doing a X2 version of this card to beat a single GT300 GPU?
 
Does anyone think this 1200 shader HD5870 would work with PCI-E 1.0?

Is 2.1 TFLOPs too much for first generation PCI-E bandwidth? I have read about performance penalties with HD4850x2 and PCI-E 1.0 already but this is with a internal crossfire card. Would a single GPU of similar performance be more efficient (use up less PCI-E slot bandwidth in the process of delivering similar performance)
 
Originally posted by: Qbah
I hope those are fake... 1200 ALUs will get pulverized by the 512 shaders of the speculated GT300 (based on todays 800 vs 240 state), at least in current (ie. non DX11) things. No idea about native DX11 stuff. Since both things are based on "leaks" and are speculation, I guess my view is as good as any 😛 I really hope the next ATi card comes out with at least 2000 ALUs.
Click to expand...

1200SP except that it's running much faster clocks. If you look at the computation power it has nearly doubled.

If you also look at tex fill or pixel fill it has doubled. If these specs are true it should be comparable to 4870x2 level of performance with a single GPU.
 
Does anyone think there will be a 5890? I was kind of bummed when I bought my HD4870 1GB only to see the 4890 come out. I could've waiting. Should've. Not that the card has disappointed me in any way thus far, I am much more CPU/memory limited right now. Hell even my monitor is too small.
 
Originally posted by: ExcaliburMM
Does anyone think there will be a 5890? I was kind of bummed when I bought my HD4870 1GB only to see the 4890 come out. I could've waiting. Should've. Not that the card has disappointed me in any way thus far, I am much more CPU/memory limited right now. Hell even my monitor is too small.
Click to expand...

So basically you are happy with your card, you just always want something better even though you dont need it? 😕
 
Originally posted by: ExcaliburMM
Does anyone think there will be a 5890? I was kind of bummed when I bought my HD4870 1GB only to see the 4890 come out. I could've waiting. Should've. Not that the card has disappointed me in any way thus far, I am much more CPU/memory limited right now. Hell even my monitor is too small.
Click to expand...

Why would you have waited for a card that is some 8% faster then yours? I don't see 4890 as such a big improvement over 4870. If you ask me, I never really understood the point of 4890, since it wouldn't surpass GTX 285 at stock clocks. Maybe ATi just wanted a slightly faster single gpu card that would be use by enthusiasts for some serious overclocking, otherwise is just a small step over their 4870 1GB.
 
Originally posted by: ExcaliburMM
Does anyone think there will be a 5890? I was kind of bummed when I bought my HD4870 1GB only to see the 4890 come out. I could've waiting. Should've. Not that the card has disappointed me in any way thus far, I am much more CPU/memory limited right now. Hell even my monitor is too small.
Click to expand...

Yeah there is a good chance there will be a 5890, releasing a 5800 Ultra would be a bad idea though! 😉
 
Originally posted by: Azn

1200SP except that it's running much faster clocks. If you look at the computation power it has nearly doubled.

If you also look at tex fill or pixel fill it has doubled. If these specs are true it should be comparable to 4870x2 level of performance with a single GPU.
Click to expand...
Exactly; simply counting SPs is not enough to get the full picture.
 
This isn't anything new. ATI and Nvidia have both been doing this incremental Ultra XTPE GTX stuff for a while.

6800 Ultra
7800GTX 512
8800GTX Ultra
9800GTX+

9800XT
X850XT PE
X1950XTX
HD4890

give or take a few small variations, we're seeing these 5-8% improved high end due to better waffer yields + other manufacturing efficiency. In any case, it's mostly marketing. I wouldn't be too bumed about having a 4870 vs a 4890. For games that run fine on 4890, the 4870 usually runs well too, and if you can't run something on 4870 a 5-8% increase won't necessarily make it run smoothly on 4890.
 
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