Newsgroup: it.comp.hardware.video-3d
Titolo: Elenco features HD4800 Series!!!!

ATI Radeon HD 4800 series :
956 million transistors on 55nm fabrication process
PCI Express 2.0 x16 bus interface
256-bit GDDR3/GDDR5 memory interface
Microsoft® DirectX® 10.1 support
Shader Model 4.1
32-bit floating point texture filtering
*Indexed cube map arrays*
*Independent blend modes per render target*
*Pixel coverage sample masking*
Read/write multi-sample surfaces with shaders
*Gather4 texture fetching*
Unified Superscalar Shader Architecture
*800 stream processing units*
Dynamic load balancing and resource allocation for vertex, geometry, and 
pixel shaders
Common instruction set and texture unit access supported for all types of 
shaders
Dedicated branch execution units and texture address processors
128-bit floating point precision for all operations
Command processor for reduced CPU overhead
Shader instruction and constant caches
*Up to 160 texture fetches per clock cycle*
*Up to 128 textures per pixels*
Fully associative multi-level texture cache design
DXTC and 3Dc+ texture compression
High resolution texture support (up to 8192 x 8192)
*Fully associative texture Z/stencil cache designs*
Double-sided hierarchical Z/stencil buffer
Early Z test, Re-Z, Z Range optimization, and Fast Z Clear
Lossless Z & stencil compression (up to 128:1)
Lossless color compression (up to 8:1)
*8 render targets (MRTs) with anti-aliasing support*
Physics processing support
Dynamic Geometry Acceleration
High performance vertex cache
Programmable tessellation unit
Accelerated geometry shader path for geometry amplification
*Memory read/write cache for improved stream output performance*
Anti-aliasing features
Multi-sample anti-aliasing (2, 4 or 8 samples per pixel)
Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality
Adaptive super-sampling and multi-sampling
Gamma correct
Super AA (ATI CrossFireX configurations only)
All anti-aliasing features compatible with HDR rendering
Texture filtering features
2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 
taps per pixel)
128-bit floating point HDR texture filtering
sRGB filtering (gamma/degamma)
*Percentage Closer Filtering (PCF)*
Depth & stencil texture (DST) format support
Shared exponent HDR (RGBE 9:9:9:5) texture format support
OpenGL 2.0 support
ATI Avivo HD Video and Display Platform
2nd generation Unified Video Decoder (UVD 2)
Enabling hardware decode acceleration of H.264, VC-1 and MPEG-2
Dual stream playback (or Picture-in-picture)
Hardware MPEG-1, and DivX video decode acceleration
Motion compensation and IDCT
ATI Avivo Video Post Processor
*New enhanced DVD upconversion to HD >>> NEW!*
*New automatic and dynamic contrast adjustment >>> NEW!*
Color space conversion
Chroma subsampling format conversion
Horizontal and vertical scaling
Gamma correction
Advanced vector adaptive per-pixel de-interlacing
De-blocking and noise reduction filtering
Detail enhancement
Two independent display controllers
Drive two displays simultaneously with independent resolutions, refresh 
rates, color controls and video overlays for each display
Full 30-bit display processing
Programmable piecewise linear gamma correction, color correction, and color 
space conversion
Spatial/temporal dithering provides 30-bit color quality on 24-bit and 
18-bit displays
High quality pre- and post-scaling engines, with underscan support for all 
display outputs
Content-adaptive de-flicker filtering for interlaced displays
Fast, glitch-free mode switching
Hardware cursor
Two integrated DVI display outputs
Primary supports 18-, 24-, and 30-bit digital displays at all resolutions up 
to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)3
Secondary supports 18-, 24-, and 30-bit digital displays at all resolutions 
up to 1920x1200 (single-link DVI only) *3
Each includes a dual-link HDCP encoder with on-chip key storage for high 
resolution playback of protected content *4
Two integrated 400MHz 30-bit RAMDACs
Each supports analog displays connected by VGA at all resolutions up to 
2048x1536
*DisplayPort output support*
Supports 24- and 30-bit displays at all resolutions up to 2560x1600
HDMI output support
Supports all display resolutions up to 1920x1080
*Integrated HD audio controller with up to 2 channel 48 kHz stereo or 
multi-channel (7.1) AC3 enabling a plug-and-play cable-less audio solution*
*Integrated AMD Xilleon HDTV encoder*
Provides high quality analog TV output (component/S-video/composite)
Supports SDTV and HDTV resolutions
Underscan and overscan compensation
*MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding*
*Seamless integration of pixel shaders with video in real time*
VGA mode support on all display outputs
ATI PowerPlay
Advanced power management technology for optimal performance and power 
savings
Performance-on-Demand
Constantly monitors GPU activity, dynamically adjusting clocks and voltage 
based on user scenario
Clock and memory speed throttling
Voltage switching
Dynamic clock gating
Central thermal management " on-chip sensor monitors GPU temperature and 
triggers thermal actions as required
ATI CrossFireX Multi-GPU Technology
Scale up rendering performance and image quality with two GPUs
Integrated compositing engine
High performance dual channel bridge interconnect *5
-- 
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SimBus82 sta per rinascere...
Scopri la nuova reincarnazione 
http://tinyurl.com/2d7byh
Firefox Download World Record! ADERISCI ANCHE TU!
http://www.spreadfirefox.com/it/worldrecord/
 

 ha scritto nel messaggio 
news:g3e2rm$72g$1...@tdi.cu.mi.it...
http://news.softpedia.com/images/news2/NVIDIA-to-Release-GTX-280-GX2-3.jpeg
 

 *MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding*
Ah ma come siamo messi co' sta feature? Sempre la solita presa per il 
cu*o dell'utility integrata nel pannello di controllo (e che tra l'altro 
non sfrutta una cippa di hardware) o è cambiato qualcosa?
-- 
Fra
http://paradigmazero.spaces.live.com/
Codice Wii: 8284 3849 9496 7234 | Tag Live: SoB is Moody

 sfrutta una cippa di hardware) o è cambiato qualcosa?
ma come no, che dici?
io la uso spesso 

 ma come no, che dici?
Come no cosa?
Quando si è sentita la prima volta, la storia del transcoding hardware 
con avivo era così... l'avevano data per una feature hardware e poi si 
scoprì che faceva tutto (molto efficientemente) in software... Tra 
l'altro con un sacco di limitazioni...
Ora ti parlo dei tempi della Ati X1600 eh, non conosco eventuali 
evoluzioni...
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 evoluzioni...
ah ho capito... sinceramente anche io ancora non ben capito se va veramente 
in hardware.. perchč, se riesci a installarlo il transcoder....va anche nel 
mio pc....e ho una x850xt....
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 transcoder....va anche nel mio pc....e ho una x850xt....
il fatto che giri su sm 2.0 che significa oltre che non necessita di shaders 
lunghi?
č 5 volte piů veloce che su una cpu veloce, vorrei far notare 

 mio pc....e ho una x850xt....
Ecco. Quindi non è cambiato niente... :|
Spero che quantomeno non soffra di spuntinamenti e crash vari quando 
diventa rovente (cioè appena cominci a giocare)... Io ricordo che la 
9700pro mi toccava downclockarla a volte... e con la x1800xt di un amico 
le cose non andavano poi tanto diversamente... :/



Se per quello da elitebastards per un po di tempo era disponibile una 
versione leaked senza installer che andava anche con schede nVidia.
Quando presi la X1900XT l'unica differenza macroscopica riscontrata rispetto 
alla versione leaked è che la versione ufficiale si poteva lanciare solo da 
ccc configurato in modalità classica, c'avrò messo 2 ore per capirlo...


no no... intendo che gira completamente in CPU  :-D


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avevo riportato le istruzioni per farlo giusto qua io ancora a quei tempi!
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