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petrofsky

GC Aperkah Yg Paling Feveret ...

Anda merupakan pengguna GC jenih ...  

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  1. 1. Anda merupakan pengguna GC jenih ...

    • NVidia GPU
      36
    • ATi VPU
      34


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FP tu adalah Floating Point...................... search kat google apa kelebihan dia.. heheh.. kalo korang 'active' (selalu jenguk) dlm forum guru3d.com atau nvnews.net korang tau la apa menda tu... tongue.gif

mmg geforce fx series ni yg buatkan nvidia loss dia punya profit ke ATi... aku akui yg radeon 9800XT tu lagi power dari geforce fx5950 ultra dari segi performance dia.. laugh.gif tapi sekarang dengan kemunculan 6800 series yang serba baru ni 'nvidiot' akan kembali bersaing rapat dengan ATi.. tongue.gif

apa? X800 series lagi power dari 6800 series? rolleyes.gif hohohoho... tapi perlu diingat X800 tu tak sapot SM3.0... SM3.0 walaupun bagi sesetengah 'fanATic' pandang sebelah mata.. tapi dengan SM3.0 ni ia dpt menaikkan lagi performance dan jugak kualiti gambar (walaupun tak jauh beza ngan SM2.0).. cth yg ada.. tgk game FarCry dengan patch 1.2 dan penggunaan DX9.0c berserta driver Forceware 6x.xx series (walaupun Beta) jelas menunjukkan pengguna 6800 series ni performance dia naik.. (rujuk beberapa site yg buat perbandingan ttg nie terutamanya www.DriverHeaven.net <-- lubuk 'fanATic' atau dengan kata lain kubu kuat ATi.. hehehhe) dan tak lama lagi akan muncul byk lagi game yg sapot SM3.0 seperti battle for middle earth dan lelain... (rujuk topik yg ada dlm ruangan ni ada link utk senarai game yg akan sapot SM3.0)

kepada yg malas nak search:

Neoseeker: In what instances would you say that 32bit FP is absolutely essential and 24bit FP is not enough? I understand with a greater number of passes with Shaders especially with truncation / round off errors. In a relatively few number of shader instructions for games for example, will this matter a lot? Conversely, if for whatever reason someone uses a large number of shader instructions, say in the thousands, will 32bit FP be enough with the understanding that a lot of error accumulation is algorithm dependent.

David Kirk: 32bit FP is enough precision that most shading algorithms have no trouble whatsoever with precision errors or error accumulation. 24bit is not. First of all, to clarify, 24bit FP doesn't mean that you have 24 bits of precision – it means that you have 24bits for the entire numeric representation. Floating point uses an exponent (range multiplier) that scales the mantissa (precision bits), and of course there are also sign bits for both. So, let's say that in 24bit FP, you have 8bits for exponent/sign, and 16bits for mantissa/sign. That means that you only have 16bits of precision. 32bit FP has 24bits of precision. I'll give you two examples where 16bits of precision (24bit floating point) is not enough:

  1. A repeating hi-res texture map. If you have a 1kx1k texture map that repeats (is tiled), and you're calculating where in the texture map you are given a particular view, you quickly run out of precision. 10 bits for the texture address, a few bits for the position (which is not very much), and you're quickly out of bits.

  2. Geometry or normal vector math calculation. There is a reason why vertex shaders are 32bit FP, and that same reason holds when you are calculating vector math for reflections or displacements. You can easily run out of range or detail precision.

So, for real addressing or geometric math, 24bit FP is not enough. On the flip side, for color calculation, 24bit FP is overkill. 16bit FP is precise enough to represent color/brightness range of approximately 14dB, which is almost the full range of the human visual system. So, 16bit FP is also a convenient format for storing and filtering textures and blending images. As further support for that idea, ILM and other major film studios have been using it for years.

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oi ape ni, gaduh2 tak ajak aku, aku nak joint sekali.....

nVidia the best sebab dia dapat engineer dari 3DFX, memandangkan Voodoo satu ketika dulu paling power, so nVidia best.

ATi aku paling menyampah bab driver dia ngan monitor Plug N Play, lepastu ATi tak support Win98 sepenuhnya. cam haritu, aku beli ATi 9100 utk abg aku, computer P4 2.26Ghz, ram 512Mb DDR333, tapi aku install win98SE memandangkan application dia tak leh run on windows XP (Land Survayer nye software pakai dongle <-- betul ke eja). So, memandangkan aku kasi dia monitor likom, which is fully plug N play (tak ade driver dibekalkan). So, bila aku set dalam driver 85Hz, tapi monitor still show 60Hz. habis semua benda aku godek tak leh, last2 aku tukau monitor, cucuk kat samtron 15" and install samtron nye monitor driver, terus OK. (note: kalau pakai WinXP dia work fine).

so, apapun, nak pakai ATi kena kuat iman, kalau tak, penuh carutan keluar waktu nak setup, melainkan dah biasa, bagi org yg sentiasa setup nVidia cam aku, ATi memang cerewet.

dari segi performance, ATi aku tak nafikan power, walaupun sentiasa menggunakan outdated technology.

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aku takla fanatik nvidia atau ati,tp ada betulnyer driver nvidia mmg lebih baik,snang crita la..kalau ada duit aku btukar antara dua pengeluar gpu ni...mana2 ar...asal baik bleh ngam...

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aku takla fanatik nvidia atau ati,tp ada betulnyer driver nvidia mmg lebih baik,snang crita la..kalau ada duit aku btukar antara dua pengeluar gpu ni...mana2 ar...asal baik bleh ngam...

aku recommend ko amik 6800 GT.. atau kalo banyak duit amik yg Ultra punya.. hehehe.. (kalo nak Ultra, standby psu power dulu.. laugh.gif )

GT - single slot , 1 molex only dan 16pipelines jgk... kalo di oc.. lebih dapat lebih kurang ngan Ultra.. best2

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yup bab driver mmg ati ni s*ck sket...dulu mase pakai pakai nvidia mmg tak penah ade problem bab driver ni, tapi bile start pakai ati ni, ade je prob nak install n uninstall driver.. tapi takde la susah sangat la....klu reti english bace readme leh la paham...kohkohkohkohkoh

dari segi performance, ATi aku tak nafikan power, walaupun sentiasa menggunakan outdated technology

abg mus...leh terangkan tak maksud sentiase gune outdated technology?

ape maksud outdated tu, betulke outdated, leh bagi bukti...ape fact dia????

Edited by cermin

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oOOOoo nak fact ek! nah amik ni....

ATi pakai 16FP compare to nVidia pakai 30FP

ATi pakai 110nano process compare to IBM pakai 65nano process

ATi pakai VHDL compare to IBM pakai Circuit Entry

ATi pakai Singgle GPU compare to nVidia pakai Dual GPU

ATi tak fully support Plug N Play monitor compare to nVidia

ATi pakai SiO2 dielectric compare to Intel pakai High-K Dielectric

ade banyak lagi, tapi yg tu dah masuk bab solid state, so cite pun mazir air liur aku je......

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weh mus3nah.. ati pakai FP24 la.. Nvidia pakai FP32

Yes, aku silap taip!

Intel ade, saje je nak compare secara open....hokhohkohkohkohk

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bagi aku lah....lepas nie pun aku tak kan serik nak beli ati card....apa heran sangat ke nvidia ada fp 32....bukan ketara pun....tak tau lah kalau mata tueh dah macam burung hering tueh...heuk heuk.....wokeh cun!!!

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ha ye la tu ati.. dah byk duit beli yg x800 series.. pastu nanti game SM3.0 kuar berlambak (dah byk game yg akan guna sm3) kumpul duit lagi beli radeon yg support sm3 tuu... tapi nvidia user (6800 series) bleh simpan duit upgrade menda lain takde la membazir beli kad byk kali.. wokeh cunn!!!

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aahh.....susah sangat ke....meh ngko beli kan itu 2 gc ati ngan nvdia....nanti dah lepas compare kan kasi lah si petabite compare lah...lepas tueh gmos,takata.mus3na,sarge.....semua skali lah senang.

lepas tueh baru lah buat undian.....huak huak huak....wokeh cun!!!

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beli radeon X800 Series..? ermm.. kena pikir 10x sebelum beli sebab tak berbaloi utk masa depan... khokohkkhhok.... nak compare..? dah berlambak dlm web yg review kedua-dua kad ni...

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Ok ok, cakap cakap jugak, sapa nak kasi aku duit utk aku beli dedua GC ni, nnti aku bole test, dan aku buat report kat sini...

sesapa?

tongue.gif

Apa kata kite buat collection duit ok tak? Bagi ko test dulu lam 2 minggu, pastu ... sape nak kad tu, kira bayar la baki .... hehehehehe .... biggrin.giflaugh.giftongue.gif

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nvidia kuar grafik card 6800ultra pun kalah gak ngan radeon X800XT...haha..

nvidia x kan menang la..ati ade catalyst..bole di'upgrade' version mengikut keperluan semase..

nvidia still loser..wakakaka..jgn mare..juz my opinion.. =)

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kohkokhokhokoh.. setahu aku driver CATALYST la yg banyak 'masalah' lagi... berbanding ngan FORCEWARE yg diakui kestabilannyaaa... mutu gaya keunggulan...

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lantakla korang janji aku main game smooth dah puas hati... tongue.gif

lantak le ATi ke Nvidia ke Nbododia ke pedulik ape aku, ade duit beli je ape kad ape nak, beli ikut pilihan sendiri bkan org lain... sleep.gif

Edited by quakecon

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ape la korang ni, dari Intel Vs AMD, Microsoft Vs Open Source, ATi vs NVidia, kenapa la nak gaduh2. org mintak pendapat, so berila secara bernas. tak semestinya benda yg best kat kau akan best kat org lain. Ade ape ngan benchmark! hanye user tu sendiri yg leh feal.

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