ATi R8xx - informace, novinky, spekulace

[Krteq]

FAKE, už se to tu řešilo.

[DukeNukemCZ]

Mno ja sem za dobu co mam ati moc problemu nezaznamenal (sem tam neco s Hercules 9700Pro) a pak s X300/X700/X1950XTX to slo v pohode, ale po te co jsem si koupil HD3870X2 tak jsem myslel ze tu zasranou kartu vyhodim z okna, nekolik mesicu trvalo nez ovladace zacly fungovat tak jak meli byla to asi nejhorsi zkusenost co sem mel pak s HD4870X2 uz to bylo o dost lepsi a takovej horror jako s HD3870x2 uz jsem nezazil, problem byl urcite v tom reseni protoze problemy co jsem mel uzivatelne jednocipovych karet od ati nemely.

[Syntex]

Jasný render fanouška

[Koky]

Když už tu někdo odkazoval na xtremesystems.org tak já doporučím tuto odpověď: http://www.xtremesystems.org/forums/sho ... tcount=174.

Je tam shrnuto všechno + ještě něco navíc.

[Krteq]

Není to Jared z B3D fóra?

Now reports core lower @ 750mhz (probably 3 different speeds for 3 models 650/750/850)

[Koky]

Architecture explained by a newb:
Dual core / MCM: This generation supports a new "hard" method of dual gpu rendering that differs from previous Crossfire implementation that we see R800 and in rv870 crossfire situations. The chinese translation is "dual core" or split frame hardware- Has something to do with the way the shaders/alus etc operates inside an individual gpu (a method of simultaneous operations in the hardware, similar to dual core, yet not actually two dies in one package ala MCM). Perhaps there is no more real-time compiler in the driver and its all handled on the hardware level by the scheduler. Because the core of the chip is so modular & scalable with certain areas sharing parts of the die (ROPS + Memory controller logic), you are able to divide the specs in half (1600/256/80/32 to 800/128/40/16) and have two parts (rv870/rv830) and rv870 appears as two rv830's, yet it is still only one die. Hence term "dual-core" - more like "modular". Some people think, yes, but all GPUs are multi-core because each of the shaders is like a core by itself. Well, here we are dealing with two large arrays of 800 shaders, along with other standalone logic that communicates with either one of the two identical arrays. More specifically, one Rv870 die is composed of two Rv830-like 160x5 clusters/shader arrays (like two current-gen revamped rv770's in one die) sharing certain features, but connected via "internal crossfire" working in unison and the entire design is a continuation of R600 architecture. It is load balanced, efficient, and requires no crossfire software optimization (because it is hardware level communication); it works via SFR 8*8-32*32, and is bandwidth intensive. The board is using next-gen 5ghz Gddr5 to provide the required bandwidth. So, apparently they've slapped together two 40nm rv770's... so it's easy to see where "dual-core" confusion comes from. Cypress is like a 40nm 4890x2 in one die! -So, it is like a "native dual core" CPU. Now that specs are known for Cypress & Juniper (rv870 & rv830) you can expect that the remaining parts Cedar & Redwood (rv840 & rv810) are 3/4 Cypress & 1/4 Cypress respectively, and that Hemlock (r800) is 2 x Cypress in the same fashion as the HD4870x2 on a single PCB. So, Cypress is like a larabee, except that it uses 2 rv770 cores, whereas larabee is using several P54C cores. (Even though this isn't an actual rv870 die shot, rather an artist's rendition posted earlier - when you do see an actual one, it will look more like the first two images ie. a symmetrical reflection of two identical core areas over a center axis, rather than the third picture - which is an actual die shot of rv770. Notice in the 3rd pic that the rv770 is asymmetrical by design, not resembling a dual core architecture.)

[Koky]

Hemlock (R800) dual gpu "HD5870x2/ HD5890x2" is:


<- Hd4850x2
<- HD4870x2 is overlayed for size comparison
larger than 4870x2 single PCB
4.8+ Tflops (can it play crysis? )
29.5cm (11.6in) slightly longer than hd4850x2
2 x 2.2bil transistors (wiki says 1.8b x 2)
40nm 353mm^2 die x 2
19mm x 19mm at cost of $34 per die
now saying: 17.8 * 17.2 = 306.2mm ^ 2 est. 306-320mm2
1 6pin + 1 8pin PCI_E power connectors
DX11
3200SP (1600 x 2)
256bit bus x 2
160 Tex map. (80TMU x 2)
64 ROPS 32ROP x 2
1024/2048mb x 2 mem configs 4gb ~5-6ghz GDDR5???
Core clock 100mhz higher than Cypress
~$500 MSRP
3dmark vantage performance:
Extreme mode ~X13000
(2x Cypress) theoretical Performance P34xxx ???
has to be less though - P28-P30k range

Kód: Vybrat vše

http://74.125.65.132/translate_c?hl=en&sl=zh-CN&u=http://www.chiphell.com/news/&prev=/search%3Fq%3Dchiphell%26hl%3Den&rurl=translate.google.com&usg=ALkJrhhqhcWcdIBW-AeAw9Nft0vRSl16FA

Hemlock is R800, possibly branded as 59x0, 300w TDP(6+8pin) uses two RV870s using SFR. Possibly 2 different cards, one PCB codenamed Trilleon(?) estimated MSRP $499-$599. Slightly longer PCB than 4870x2.

Cypress is RV870, 58x0, 225w TDP(dual 6pin), 256bit, 32ROPs, 1600SP, 80TMUs, ~280-340mm2, performance of around a 4870x2/4890CF. 2-3 different cards, 1&2GB versions, MSRP $249, $299 and $349. PCB slightly longer than 4870(9.5in) so maybe 10in, 2 slot cooler w/ 2 DVI, a HDMI and DisplayPort weird half exhaust in the back.

Cedar is RV840, supposedly a cancelled 192bit, 960SP part.

Juniper is RV830, 150w TDP(6pin), 128bit, 16ROPs, 800SP, 40TMUs, 181mm2, performance between a 4870 and 4890, closer to a 4890. 8.5in PCB(?) single slot cooler reference(?) OC'ed/higher clocked dual slot cooler(?) 1GB. MSRP $149 and $199.
Talk of a lower binned 640SP part to replace RV740, filling the $89-$129 market(?).

Redwood is RV810, 75w TDP, unknown specs- 64bit, 320-480SPs, 24TMUs, 80-90mm2. Performance close to a 9800GT, less than a 4830(?). MSRP ~$79 and under. Low profile version(?).

Podle toho co čtu, tak pokud se to naplní tak vážně nebudeme věřit vlastním očím.

[Koky]

Kód: Vybrat vše

http://www.youtube.com/watch?v=zZAwniLT22U&eurl=http%3A%2F%2Fwww.pcper.com%2Fcomments.php%3Fnid%3D7640&feature=player_embedded#t=46

R8xx in action DiRT 2

[MkoOO]

vidiet tam prd a neverim, ze su to DX11 zabery

[no-X]

Nevidím jediný důvod, proč by nemohly být...

[MkoOO]

mozno to, ze na implementacii DX11 prave pracuju, inak by asi neposuvali vydanie hry na PC len tak zo srandy na december...

ale zasa je pravda, ze nieco funkcne mat mozu

[Krteq]

Oni to mají celé

BTW, kde jsi vzal to posunutí vydání hry na Prosinec (December)? Na tuhle hru se celkem těším a situaci okolo ní sleduju - tohle je na oficiálních stránkách Codemasters:

Colin McRae: DiRT™2
available from 11th September 2009
PC-DVD, PS3, XBOX360, PSP, Wii, DS

Viz. Codemasters Game Catalog

Jinak tato hra tu už vlákno má - Colin McRae DiRT 2. Další příspěvky/dotazy ohledně této hry směřujte tam.

[smoula]

Redwood is RV810, 75w TDP, unknown specs- 64bit, 320-480SPs, 24TMUs, 80-90mm2. Performance close to a 9800GT, less than a 4830(?). MSRP ~$79 and under. Low profile version(?).

Kdo tomu věří?To bych teda valil oči.

[Robin_CG]

Kdo tomu věří?To bych teda valil oči.

Ja taky. Neverim ani slovo. Docela bych klidne cekal, ze fanousci NVIDIA rozjedou kampan "ati radeon hd 5870 ma vykon jako gtx295!!!"... Jen abychom pak my co se na 5xx0 tesime byli zklamani.

Kde je nas maximalista OBR? Kdyby prichazela nova generace od Nvidia, uz bychom tu meli novinky typu: "I'VE SEEN IT JUST IN the BOX (WELL YES *cough* UNBOXED) BUT IT WAS ENOUGHT and YES IT TOTALLY *cough* BLOWED MY MIND!!!!!"

(Zeby dovolena )

[Pavel.P.]

Ovšem pokud by takové tintítko mělo takový výkon při 64bit sběrnici a počtu SP, tak se jedná o nějak překopanou architekturu a hi-end produkty nám dokonale vytřou zrak.
K té 64bit sběrnici by to tintítko potřebovalo dost rychlé paměti a možné by to mohlo být.

Kód: Vybrat vše

YES IT TOTALLY *cough* BLOWED MY MIND!!!!!"

[no-X]

Pokud něco zmiňujete, dávejte alespoň odkazy, odkud to je...

[MkoOO]

BTW, kde jsi vzal to posunutí vydání hry na Prosinec (December)?

http://www.worthplaying.com/article.php?sid=64000
http://www.worthplaying.com/article.php?sid=64308
http://pc.ign.com/objects/143/14300762.html

tyka sa to len PC verzie, napisal som to aj do threadu o hre

ked uz tu pisem, aby som nebol uplne OT

320/480 SP moze byt v pohode na urovni 9800 GT, pri pouziti GDDR5 bez problemov aj so 64bit zbernicou

[Koky]

Pokud něco zmiňujete, dávejte alespoň odkazy, odkud to je...

Je to z tohoto tématu

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http://www.xtremesystems.org/forums/showthread.php?t=226623&

a konkrétně vytípané z této odpovědi

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http://www.xtremesystems.org/forums/showpost.php?p=3967152&postcount=174

[DexCz]

Kód: Vybrat vše

http://www.hwp.ru/news/TSeni_na_AMD_Radeon_HD_5870_i_foto_AMD_Radeon_HD_5850_70353/

[Koky]

Radeon HD 5850: A nice render fake

Kód: Vybrat vše

http://www.pcgameshardware.com/aid,679483/Special-Faked-hardware-pictures-Update/News/&menu=browser&mode=article&image_id=975812&article_id=679483&page=1