R9000,在未來的遊戲都會比R8500快許多,而且多餘的錢讓你買高檔的CPU
現在的GPU還沒有primitive processor的功能(NV35, R400)
如果你喜歡玩DX7的遊戲,選擇R8500
如B3d這位仁兄講的
http://www.beyond3d.com/forum/viewtopic.php?t=2465

I didn't say it is bandwidth limited.

One can't even say that - it may be different from game to game.
Even more likely some part of the game-scene is fillrate limited while others might be bandwidth limited.

The biggest bandwidth hog in normal rendering is:
reading the Z-buffer, writing the Z-buffer, writing the color buffer.

Say you have a R9700 non-pro (300/300) just for the ease of calculation.
I assume Z is 8 bit/pixel avg. (because of compression).

Pixel cost (w/o texturing): 8+8+32 bit = 48 bit
Bandwidth available per pixel: 256*2/8 bit = 64 bit

When doing single texturing:
This leaves 64-48 = 16 bit per pixel free.
It's most likely is enough for DXTC but it will be bandwidth limited on uncompressed textures.

When doing 2x texturing:
This leaves 2*64-48 = 80 (2*40) bit per pixel free.
It's more than enough for DXTC even with aniso. It might even be enough with uncompressed textures (w/o aniso) especially if one of them is a low resulotion one. (eg. lightmap)

When doing 3x texturing:
This leaves 3*64-48 = 144 (3*48 ) bit per pixel free.
Not much difference here.

You can see that adding a second TMU will most certainly help 2x texturing but it won't likely be a 2x speed increase, except in special cases.

But let's consider DDRII @ 450 + 2xTMU

When doing single or 2x texturing:
This leaves 96-48 = 48 (2*24) bit per pixel free.
It's quite plenty for 1x texturing. It's likely enough for DXTC even with some aniso. While it's not enough for 32 uncompressed, it might not take a large slowdown in many cases.

When doing 3x or 4x texturing:
This leaves 2*96-48 = 144 (3*48 = 4*36) bit per pixel free.
It will mostly enough for high quality textures as well.


And before someone else points out, I did not calculate with bandwidth efficiency.

這也就是為何R300會贏TI4600的原因,雖然Ti4600跟R300有一樣的材質數
(4X 2= 8x1),但是R300(8管線)有多TI4600(4管線)一倍的渲染效率,所以我覺得花多一點錢在CPU上,花個3千在顯示卡就夠了

R9000pro的話要挑一下
憾訊的 2D真的不好
同樣接在LCD的D-sub
我感覺跟我的麗台G2mx差不多
不過接Dvi就真的很棒

但我還是建議ti200
至少比較不會有問題^^

我最近想買一張8500le的卡(不想再忍受nVIDIA的畫質了)
以上這兩張價錢差不多,哪一張是比較好的選擇?
較高時脈的副廠卡和較低時脈的原廠卡在畫質及效能上會有多大的差別?
希望各位可以提供點意見,謝謝~~~

...不要猶豫了
青雲Ti200給他開下去
或是等Ti4200...就這樣
遊戲雖然說我用ATI是沒啥大問題
但是也不代表都沒問題....(FS2002,AVP2....)

8500le

恕小弟不才....我不是電子科的....
但是兩張卡外觀真的看起來是百分之百的一樣啦~
我實在分不出來....我覺得還是挑便宜的買就好了...

詮網服務態度不是很好...受氣的話忍一下吧...畢竟他比較便宜嘛~

以前說ATI的驅動程式爛就算了，現在已經沒什麼大問題了，
我都玩3D遊戲，例如RTCW,MOHAA,NFS5,WC3,JF2,DS,
FIFA2002WC,Mech4,EE,我用了這麼久（去年6月到現在，
Radeon升到R8500LE），也沒發現那個遊戲貼圖有問題，
那些說ATI爛的人，大多數都沒用過，只是道聽途說，
人云亦云罷了！

你可以看看你同學有多少人說ATI爛的，這些人有幾個人真的有用過？
所以說人言可畏啊！

如果要丟的時候可以順便通知我一下嗎^^"(just kidding)

如果家中的螢幕也不是很高檔，那麼NV的卡可以敗下去，不過如果家中用的螢幕還算不錯的，那麼2D的表現真的就要考慮，畢竟接觸最多的一定是2D的部份。

目前來說，如果你一天到晚玩3D Game的話，那麼可以買NV的卡(記得要超一下才不會對不起自己的卡喔)。
如果是比較常看網頁、做文書處理、看DVD這類東西的話，那麼ATi的是首選。

而以目前的情況來看8500和9000是8500勝出，不過9000未來就很難說了。所以如果現在要買ATi的話建議買8500滴。

其實真的滿多人很在意 3D mark 出來的數字吧..
自己用的開心用的爽不才是最主要的目的嗎~~>+D~
我的 Geforece 4 MX 420 一點都不爭氣... =.=|||