de esto que te voy a decir no estoy muy seguro, pero creo que la 9600 te puede dar unas buenas caracteristicas, dicen que rinden 10 veces mejro que unas 8600 pero es que una 8600 rinde bastante peor que la 3850 de ATI,asique no sabria decirte seguro, lo mejor es que cojas las caracteristicas de cada una y las compares:
9600 GT:
Motor gráfico : NVIDIA 9600 GT GPU
Memoria de vídeo : 512 MB
Reloj de core : 650 Mhz
Reloj de memoria : 1800 Mhz
Reloj de shader : 1625 Mhz
Velocidad de memoria : 1.0 ns GDDR 3
Bus de memoria : 256 bit
Interfaz : PCI Express 2.0 16x
RAMDAC : Dual 400 Mhz
DVI-I : 2x
HDMI : Through dongle
TV-Out : Yes
Video-In : No
HDTV : Yes
Unified Shaders : 64
System Requirements
* Pentium 4/III/II/Celeron, AMD K6/Athlon o compatible con una ranura PCI Express 16x
* 64 MB de memoria de sistema
* El software de instalación requiere unidad de CD-ROM
* La reproducción de DVD requiere unidad de DVD
Full Software Support
* Microsoft DirectX 10, 9 optimizaciones y compatibilidad
* Compatibilidad OpenGL 2.0 integral
* Certificación WHQL para Vista, Windows XP, 2000
* Controladores Linux completos, incluyendo OpenGL integral
Ati 3850:
Unshackle your PC´s performance from the coin in your pocket as the SAPPHIRE HD 3870 liberates your inner gamer without compromising your wallet. Hard pressed to find a comparable product on the market for the price, the SAPPHIRE HD 3870 extinguishes all doubt that the Radeon HD 3870 core is a mid-range performing product. With features such as: DirectX® 10.1 and Shader Model 4.1 support, integrated HDMI and HDCP support for Blu-ray™/HD DVD decoding and for the extreme enthusiast, CrossFire X™ support, the SAPPHIRE incarnation of the HD 3870 will own your imagination and accelerate your performance on the virtual battlefield of your desktop! Reinvent the way you engage your gaming experience with every LOAD!
* 320 stream processing units
* PCI Express 2.0 x16 bus interface
* 256-bit GDDR4 memory interface
* 512-bit Ring Bus Memory Controller
* Microsoft® DirectX® 10.1 support
* ATI CrossFireX™ Multi-GPU Technology
* ATI PowerPlay™
* ATI Avivo™ HD Video and Display Platform
* Integrated HD audio controller with multi-channel (5.1) AC3 support
* Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality
Features
* 666 million transistors on 55nm fabrication process
* PCI Express 2.0 x16 bus interface
* 256-bit GDDR4 memory interface
* Ring Bus Memory Controller
o Fully distributed design with 512-bit internal ring bus for memory reads and writes
* Microsoft® DirectX® 10.1 support
o Shader Model 4.1
o 32-bit floating point texture filtering
o Indexed cube map arrays
o Independent blend modes per render target
o Pixel coverage sample masking
o Read/write multi-sample surfaces with shaders
o Gather4 texture fetching
* Unified Superscalar Shader Architecture
o 320 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 80 texture fetches per clock cycle
* Up to 128 textures per pixel
* 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
o High performance vertex cache
o Programmable tessellation unit
o Accelerated geometry shader path for geometry amplification
o Memory read/write cache for improved stream output performance
* Anti-aliasing features
o Multi-sample anti-aliasing (2, 4, or 8 samples per pixel)
o Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality
o Adaptive super-sampling and multi-sampling
o Temporal anti-aliasing
o Gamma correct
o Super AA (ATI CrossFire™ configurations only)
o All anti-aliasing features compatible with HDR rendering
* Texture filtering features
o 2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
o 128-bit floating point HDR texture filtering
o Bicubic filtering
o sRGB filtering (gamma/degamma)
o Percentage Closer Filtering (PCF)
o Depth & stencil texture (DST) format support
o Shared exponent HDR (RGBE 9:9:9:5) texture format support
* OpenGL 2.0 support
* ATI Avivo™ HD Video and Display Platform
o Dedicated unified video decoder (UVD) for H.264/AVC and VC-1 video formats
* High definition (HD) playback of both Blu-ray and HD DVD formats
* Hardware MPEG-1, MPEG-2, and DivX video decode acceleration
* Motion compensation and IDCT
* ATI Avivo Video Post Processor
* 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
* Inverse telecine (2:2 and 3:2 pull-down correction)
* Bad edit correction
* 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 dual-link DVI display outputs
o Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)
o Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content
* Two integrated 400 MHz 30-bit RAMDACs
o Each supports analog displays connected by VGA at all resolutions up to 2048x1536
* HDMI output support
o Supports all display resolutions up to 1920x1080
o Integrated HD audio controller with multi-channel (5.1) AC3 support, enabling a plug-and-play cable-less audio solution
* Integrated AMD Xilleon™ HDTV encoder
o Provides high quality analog TV output (component/S-video/composite)
o Supports SDTV and HDTV resolutions
o 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™
o Advanced power management technology for optimal performance and power savings
o 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
o Scale up rendering performance and image quality with two, three, or four GPUs
o Integrated compositing engine
o High performance dual channel bridge interconnect
1. Dual channel interconnect is not required for ATI CrossFire, and may not be included in all product configurations
2. Some custom resolutions require user configuration
3. HDCP support for playback of protected content requires connection to a HDCP capable display
System Requirement:
* PCI Express based PC is required with one X16 lane graphic slot available on the motherboard.
* 1GB or greater system memory for better performance.
* 450Watt or greater power supply with 75 Watt 6-pin PCI Express power connector recommended.
* For ATI CrossfireX: 550 watt power supply or greater with two 6-pin connectors.
* Certified power supplies are recommended. Refer to
http://ati.amd.com/certifiedPSU for a list of Certified products.
* Installation software requires CD-ROM drive.
* DVD playback requires DVD driver.
* Blu-ray/HD DVD playback requires Blu-ray/HD-DVD drive and playback software.
* For a complete ATI CrossFireX™ system, a second ATI Radeon™ HD 3870 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per board are required.
Saludos
