ATI R420 - 顯卡

http://news.mydrivers.com/pages/20040330234314_66284.htm#com

ATi今天在官方網站上無意泄漏出R42機密文件，根據這份文件，R420將部分支持Shader3.0
技術標準（nVIDIA的NV40將完全支持Shader3.0），ATi將在R5xx系列圖形芯片當中添加對
Shader3.0的完全支持，ATi目前關注R420現有技術性能的提昇。ATi也在文檔當中提及微軟
將在Longhorn當中內建的DirectX 10，DirectX 10將內建Shader4.0技術。另外，ATi在文
檔當中說明年內將推出搭載512MB顯存的圖形芯片，但不會是R420。

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※ 引述《jhs1213 (...)》之銘言：
: http://www.theinquirer.net/?article=14830
: Deadly dozen pipelines and PS2.0 leave ATI gasping
: CeBIT 2004 As Nvidia preps heavy-duty April launch
: By Fuad Abazovic: 星期五 19 三月 2004, 18:51
: ATI'S R420 is a 12-pipeline chip with six vertex shader units at around 500MHz
: and 1000MHz memory that should come out by the middle of April we learned.
: Since we also learned that Nvidia plans to launch its NV40 on April 14th, we
: might even see Nvidia and ATI launch rival graphics armoury in the same week.
: We can confirm, as the Germans claimed, that ATI's latest greatest prettiest
: part wont support Pixel Shader (PS) 3.0 which will be supported feature of NV40.
: That lead us to ask around and we learned that only one or two titles might
: laucnh before Christmas that support PS 3.0.
: We also learned that the R420, with its 12 pipelines, might just lose the
: performance crown game against NV40's 16 pipelines and heavily-clocked memory
: at close to 600MHz.
: We guess Nvidia's marketing team will be preparing good reasons why PS 3.0 is
: better then PS 2.0 in this iteration of the numbers game.
: But we learned that ATI has been counting on capturing the performance crown
: rather than just piling on the features to focus their marketing to that point:
: "We are faster even though we don't have PS 3.0."
: But slippery Nvidia seems to have hoodwinked its competition. Even some game
: developers and customers received 300MHz samples with an 8x2 marchitecture. And
: ATI is reeling in the ominous shadow of a 16-pipeline competitor.
: Its R420, is already up and running at ATI's NDA-protected press fortress and
: no partners have samples on their booths - despite our hopes.
: The non-disclosure press sanctum can fiddle with the card but not write about
: it. We can write but fiddling is forbiddden. We will just continue to wander
: round CeBIT to get broken parts of the puzzle.
: ※ 引述《jhs1213 (...)》之銘言：
: : http://www.theinquirer.net/?article=14739
: : 對岸的網站的新聞
: : 根據Thinquirer報道，ATi R420正式名稱是R420XT或者R420Pro。R420圖形芯片將內建12條
: : 象素渲染管線。R420是R360圖形芯片經過超級優化的產物，採用0.13微米制程，工作頻率
: : 高於R360圖形芯片的上限412MHz。之前有報道表示，XT版本的R420工作頻率是500/1GHz，採
: : 用GDDR3顯存，發熱量比GDDR2顯存更少。R420圖形芯片內建6個頂點著色單元，提供強大頂點
: : 處理能力
: : -----原文
: : ATi's upcoming R420 to sport 12 pipelines
: : Marchitectural miracles
: : By Fuad Abazovic: 星期一 15 三月 2004, 14:17
: : THE BIGGEST and most closely-guarded secret about ATI's upcoming R420 chip, in
: : either R420XT or R420PRO guise, is the number of pipelines the chip will use.
: : But now we can reveal that the R420 design features 12 working piplines from a
: : possible maximum of 16.
: : The ATI R420 chip seems to be a heavily-tweaked R360 core, with added pipelines
: : , built on a .13 marchitecture that allows the chips to run faster than ATI's
: : current high-end chip milestone, a 412MHz R360.
: : As we previously said, the relative frequency numbers for this chip will be
: : close to 500/1000MHz in its XT version; it will use GDDR 3 memory that consumes
: : less power, and yet gives out less heat, than DDR 2.
: : Its all about the brawn this time, ATI says. And, with six vertex shader units,
: : this chip ought to be very fast.
: : Despite protests, the outlook remains very cloudy for the upcoming performance
: : crown battle between the R420 and Nvidia's NV40. μ

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