[Kaotik]

"The first benchmark is Dirt 2, Ultra DX11 at 1920x1200, 8xAA, 16xAF"


"The benchmark is a a 3-screen [BattleForge] 5760x1080 benchmark, run at DX10.1 mode, comparing HD 6850 Crossfire to GTX 460 SLI. In numbers, the HD 6850 CF is 1.6x 460 1GB SLI and 3.57x 460 768MB SLI."


http://vr-zone.com/articles/amd-rade...ked/10091.html

[wishiknew]

I rather go by the chart of big and little brother than all of the different SP combos at this point.

[mczak]

Originally Posted by Kaotik

"The first benchmark is Dirt 2, Ultra DX11 at 1920x1200, 8xAA, 16xAF"

Nice, could be limited by amount of memory though (the GTX460 768MB almost certainly is), I'd like to see numbers for comparison with less AA or lower resolution.

"The benchmark is a a 3-screen [BattleForge] 5760x1080 benchmark, run at DX10.1 mode, comparing HD 6850 Crossfire to GTX 460 SLI. In numbers, the HD 6850 CF is 1.6x 460 1GB SLI and 3.57x 460 768MB SLI."

Pointless due to memory limitation, though I guess it means at least it shows an advantage for radeons in memory limited situations (I think that was the case already for earlier generations though).

[GZ007]

Originally Posted by Kaotik

"The first benchmark is Dirt 2, Ultra DX11 at 1920x1200, 8xAA, 16xAF"


"The benchmark is a a 3-screen [BattleForge] 5760x1080 benchmark, run at DX10.1 mode, comparing HD 6850 Crossfire to GTX 460 SLI. In numbers, the HD 6850 CF is 1.6x 460 1GB SLI and 3.57x 460 768MB SLI."


http://vr-zone.com/articles/amd-rade...ked/10091.html

The difference betwen 960 at 7xx MHz and 1120 900 MHz is realy small . What would justify the price difference (and also aditional power conector, higher tdp)
It seems fillrate and bandwith is still king of the fps.

[PSU-failure]

Originally Posted by Jaaanosik

Do you really expect 1120 to come close to 1600?

Even 800 could... or any other count in fact (though probably not clock/clock).

If you take "perf/flop" efficiency, Evergreen is clearly behind anything else, with only some rare scenarii where it edges R700 (Juniper/RV790).

nVidia manages to equal (and even come ahead of) Cypress with 50% less math throughput, 38% less texture fillrate and completely different pixel fillrate characteristics. GF104/106/108 show the same behaviour with some more texture fillrate (+33%) and less pixel fillrate (-29%).

What prevents AMD to achieve such a result? What size would Juniper become with enough "uncore" improvements to somewhat catch up with nVidia on that front? What if we add some more SIMDs (2 or 4) on top of that?


I bet some (potato) chips Barts is actually faster than Cypress and most leaks seen thus far are wrong/biased to show it worse than it is.

[Alexko]

Originally Posted by GZ007

The difference betwen 960 at 7xx MHz and 1120 900 MHz is realy small . What would justify the price difference
It seems fillrate and bandwith is still king of the fps.

Well, if the benchmark is bandwidth-limited, it's not surprising…

[AlphaWolf]

Originally Posted by GZ007

The difference betwen 960 at 7xx MHz and 1120 900 MHz is realy small . What would justify the price difference

Epeen.

[Miksu]

Has this been posted before? Asus spices up the Radeon HD 6850 with a DirectCU cooler

Asus will be soon launching a line of graphics cards based on AMD's Barts 40nm GPU, and it will include a DirectCU-ed version of the Radeon HD 6850. Named EAH6850 DirectCU/2DIS/1GD5, the incoming card features DirectX 11 support, 800 Stream Processors, and should run cooler than reference models.

Asus' EAH6850 DirectCU also has a slightly overclocked GPU (790 MHz), a 256-bit memory interface, 1GB of GDDR5 VRAM @ 4000 MHz, dual-DVI, HDMI and DisplayPort outputs, and can already be found on pre-order priced at $218.44.

[Man from Atlantis]

ASUS HD 6850 213$
http://www.futurepowerpc.com/scripts.../1GD5&REFID=FR

ASUS HD 6870 265$
http://www.futurepowerpc.com/scripts...870/2DI2S/1GD5

[Cali3350]

Maybe its just me but at those prices the GTX 460 still very much has a purpose in the market. AMD is still leaving a large gap in their lineup between $140 and $200. I really expected the 6850 to be ~$185.

[LordEC911]

Originally Posted by Cali3350

Maybe its just me but at those prices the GTX 460 still very much has a purpose in the market. AMD is still leaving a large gap in their lineup between $140 and $200. I really expected the 6850 to be ~$185.

MSRP and/or launch prices |= final street price once the market has settled.
Should see some rebates in a few weeks and especially when AIBs release their custom cards.

[Unknown Soldier]

Originally Posted by Kaotik

"The first benchmark is Dirt 2, Ultra DX11 at 1920x1200, 8xAA, 16xAF"


"The benchmark is a a 3-screen [BattleForge] 5760x1080 benchmark, run at DX10.1 mode, comparing HD 6850 Crossfire to GTX 460 SLI. In numbers, the HD 6850 CF is 1.6x 460 1GB SLI and 3.57x 460 768MB SLI."


http://vr-zone.com/articles/amd-rade...ked/10091.html

If that's what Bart can do, then I'm salivating at the thought of what Cayman could do.

[Tchock]

BTW on


The 960 (6850) is not CF. It's single.

Nicely directed benchmark though, shows something in the way of improved memory management.

[fbuffer]

Originally Posted by Tchock

BTW on


The 960 (6850) is not CF. It's single.

Nicely directed benchmark though, shows something in the way of improved memory management.

however nice that is to believe , I have a hard time with that.. any source ? I followed the links to http://itbbs.pconline.com.cn/diy/11997453.html and http://translate.googleusercontent.c...eeY20bLrnt6aBw

[mczak]

Originally Posted by Tchock

BTW on


The 960 (6850) is not CF. It's single.

Don't think so the text says otherwise. And my chinese is non-existent, but clearly there are some additional symbols right at "960" compared to the other benchmark with single cards.

Nicely directed benchmark though, shows something in the way of improved memory management.

I don't think this is any different than what we sometimes saw with Evergreen vs. Fermi.

[LordEC911]

Originally Posted by mczak

Don't think so the text says otherwise. And my chinese is non-existent, but clearly there are some additional symbols right at "960" compared to the other benchmark with single cards.

Well according to google translate, the characters, 单卡 mean "single card."
弟小 supposedly means "Little Brother" so that is probably how they designate the "Pro" suffix.

[mczak]

Originally Posted by LordEC911

Well according to google translate, the characters, 单卡 mean "single card."

Ah ok then. Still, this might be a case where SLI is slower than non-SLI due to the memory issues. The chart is totally worthless, even more so since in this case it would only list non-crossfire HD6850 (who says this doesn't have problems with Crossfire due to memory pressure too?) vs. SLI GTX 460.

[SimBy]

Well all framerates are unplayable so its really a moot point.

[LordEC911]

Originally Posted by mczak

Ah ok then. Still, this might be a case where SLI is slower than non-SLI due to the memory issues. The chart is totally worthless, even more so since in this case it would only list non-crossfire HD6850 (who says this doesn't have problems with Crossfire due to memory pressure too?) vs. SLI GTX 460.

But GTX460 can't run 3 outputs at once without SLI.

[mczak]

Originally Posted by LordEC911

But GTX460 can't run 3 outputs at once without SLI.

Right, forgot about the resolution... In any case, the chart just doesn't tell us anything about the performance to expect, unfortunately.

[Alexko]

Found this on PCWorld.fr :

MSI Radeon HD 6870, 256-bit 1120SP 1GB GDDR5 900MHz 4200MHz DirectX 11.
XFX Radeon HD 6850, 256-bit 960SP 1GB GDDR5 775MHz 4000MHz DirectX 11.
J'ai reçu ça de la part d'un de mes amis qui tiens une boutique.

http://www.pcworld.fr/reactions/xfx-...07365/#comment

J'ai reçu ça de la part d'un de mes amis qui tient une boutique. = I got this from a friend of mine who runs a shop.

I guess those are the final specs, then.

[LordEC911]

Originally Posted by Alexko

Found this on PCWorld.fr :


http://www.pcworld.fr/reactions/xfx-...07365/#comment

J'ai reçu ça de la part d'un de mes amis qui tient une boutique. = I got this from a friend of mine who runs a shop.

I guess those are the final specs, then.

On a slight tangent- Was helping out a Fry's Electronics employee at my work, started chatting about his job, he does sales in computer accessories. Just asked him if he had heard about AMD releasing a new product. He said that the last week or so employees kept seeing them in the back and putting them out on the shelf so they finally locked them up. I was like damn, could have gotten one early.

I'll have to try and find one of those clueless employees a week or two before Cayman is released.

[Jawed]

That would mean, in comparison with HD5850, HD6870 is:

• GFLOPS - 2016 v 2088 = 97%
• GTexels/s - 50.4 v 52.2 = 97%
• GPixels/s - 28.8 v 23.2 = 124%
• GB/s - 134.4 v 128 = 105%

So, a clear bias in favour of fillrate. Gonna be interesting to see how this works out for real in games...

[Sontin]

Originally Posted by Jawed

That would mean, in comparison with HD5850, HD6870 is:

• GFLOPS - 2016 v 2088 = 97%
• GTexels/s - 50.4 v 52.2 = 97%
• GPixels/s - 28.8 v 23.2 = 124%
• GB/s - 134.4 v 128 = 105%

So, a clear bias in favour of fillrate. Gonna be interesting to see how this works out for real in games...

Don't forget the Front-End with the 25% higher clock rate.

[Jawed]

Yeah, you're right. Gonna be fiddly disentangling some of this stuff.

LOL, tessellation could be a smidgen faster