ATi Radeon HD5850!
Caratteristiche tecniche della scheda
- Processo produttivo:40 nm
- Tipologia GPU:RV870
Clock della GPU:725 Mhz
Numero di stream processors:1440
Clock degli stream processors:725 Mhz
Numero di ROPs:32
Numero di TMU:72
Quantitativo di memoria on-board:1.024 Mb
Tipologia della memoria on-board:GDDR5
Clock della memoria:4.000 Mhz
Interfaccia della memoria:256 bit
Bandwidth della memoria:128 Gb/s
Connettori per l'alimentazione:2x6Pin
I consumi in idle sono stati notevolmente dall'ultimo modello di punta single-Gpu.
Si passa dai 90 watt della 4890 ai 27 watt della 5850: mentre a pieno carico, si passa dai 160 watt della 4890 ai 170 watt della 5850.
Inoltre la scheda possiede svariate tecnologie:
DirectX® 11 support
- Shader Model 5.0
- DirectCompute 11
- Programmable hardware tessellation unit
- Accelerated multi-threading
- HDR texture compression
- Order-independent transparency
OpenGL 3.2 support1
Image quality enhancement technology
- Up to 24x multi-sample and super-sample anti-aliasing modes
- Adaptive anti-aliasing
- 16x angle independent anisotropic texture filtering
- 128-bit floating point HDR rendering
ATI Eyefinity multi-display technology2,3
- Three independent display controllers
- Drive three displays simultaneously with independent resolutions, refresh rates, color controls, and video overlays
- Display grouping
- Combine multiple displays to behave like a single large display
ATI Stream acceleration technology
- OpenCL 1.0 compliant
- DirectCompute 11
- Double precision floating point processing support
- Accelerated video encoding, transcoding, and upscaling4,5
- Native support for common video encoding instructions
ATI CrossFireX™ multi-GPU technology6
- Dual, triple, and quad GPU scaling
- Dual-channel bridge interconnect
ATI Avivo HD Video & Display technology7
- UVD 2 dedicated video playback accelerator
- Advanced post-processing and scaling8
- Dynamic contrast enhancement and color correction
- Brighter whites processing (blue stretch)
- Independent video gamma control
- Dynamic video range control
- Support for H.264, VC-1, and MPEG-2
- Dual-stream 1080p playback support9,10
- DXVA 1.0 & 2.0 support
- Integrated dual-link DVI output with HDCP11
- Max resolution: 2560x160012
- Integrated DisplayPort output
- Max resolution: 2560x160012
- ntegrated HDMI 1.3 output with Deep Color, xvYCC wide gamut support, and high bit-rate audio
- Max resolution: 1920x120012
- ntegrated VGA output
- Max resolution: 2048x153612
- 3D stereoscopic display/glasses support13
- Integrated HD audio controller
- Output protected high bit rate 7.1 channel surround sound over HDMI with no additional cables required
- Supports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats
ATI PowerPlay™ power management technology7
- Dynamic power management with low power idle state
- Ultra-low power state support for multi-GPU configurations
Certified drivers for Windows 7, Windows Vista, and Windows XP
Il prezzo della scheda online oscilla dai 220 ai 260 euro, ottimi se paragonati ai 280 circa della rivale Nvidia 285 che non regge lo scontro diretto con la scheda.
Ecco alcune foto dei vari modelli di 5850 presenti sulla rete:
Ulteriori link sono qui disponibili per approfondimenti e recensioni: